Journal articles: '- Spring moon'

1

Da Silva, C. Marciano. "The Spring Full Moon." Journal for the History of Astronomy 35, no. 4 (November 2004): 475–78. http://dx.doi.org/10.1177/002182860403500407.

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Miller, David. "Events spring surprises as Moon stretches LEP." Physics World 6, no. 1 (January 1993): 24–25. http://dx.doi.org/10.1088/2058-7058/6/1/21.

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Zavala-Muñoz, Francisca, Mauricio F. Landaeta, Valentina Bernal-Durán, Claudia A. Bustos, and Bryan S. Dyer. "Abundance of early life stages of the surf silverside Notocheirus hubbsi (Teleostei, Atheriniformes) in the coastal nearshore of central Chile." Revista de Biología Marina y Oceanografía 56, no. 1 (June 7, 2021): 74. http://dx.doi.org/10.22370/rbmo.2021.56.1.2800.

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The abundance of early stages of the surf silverside Notocheirus hubbsi in nearshore waters of central Chile, collected in samplings set up to assess the lunar cycle during austral spring and summer is reported. A total of 19 specimens were collected with light traps, 16 larvae (7.89-16.20 mm SL) in austral spring and 3 juveniles (30.70-34.60 mm SL) in summer. Capture per unit effort (CPUE) varied from 0.33 to 2.00 ind. light trap-1 night-1 during the entire study period (September 2015-February 2016, and September 2016-February 2017). N. hubbsi catches recorded maximum abundance during the new moon and no catches during full moon.

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Castillo-Hidalgo, Gissella, Guido Plaza, Macarena Díaz-Astudillo, and Mauricio F. Landaeta. "Seasonal variations in early life traits ofSindoscopus australis(Blennioidei: Dactyloscopidae): hatching patterns, larval growth and bilateral asymmetry of otoliths." Journal of the Marine Biological Association of the United Kingdom 98, no. 6 (May 30, 2017): 1477–85. http://dx.doi.org/10.1017/s0025315417000790.

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Early life traits (ELT) of the sand-burrowing cryptic marine fishSindoscopus australis(family Dactyloscopidae) were compared between cohorts hatched during winter and spring 2013, in nearshore rocky reefs off central Chile. Pelagic larvae were similarly abundant during both periods, but larger larvae were collected during austral spring. The sagittal otolith microstructure and size analyses also indicated that size-at-hatch was larger (4.7 mm) for the winter cohort, but winter larvae experienced slower growth rates (0.145 mm day−1± 0.008). Conversely, larvae from the spring cohort hatched at smaller sizes (2.9 mm), but they grew faster (0.182 mm day−1± 0.008). Hatching periods were coupled with the lunar cycle; in winter, hatching events were related to neap tides (first and third quarter moon), increasing chances of self-recruitment. Meanwhile, during spring, hatching occurred during spring tides, particularly over the new moon, decreasing chances of larval mortality by predation. Otolith traits used to test asymmetry among cohorts showed inconsistent results. Only sagittal perimeter presented fluctuating asymmetry, showing higher variance for the winter cohort. We conclude that this burrowing species displays different reproductive tactics at a seasonal scale.

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Sparkes, Matthew. "Robot with a spring in its step shoots for the moon." New Scientist 254, no. 3385 (May 2022): 25. http://dx.doi.org/10.1016/s0262-4079(22)00798-9.

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Reis-Filho, José Amorim, Francisco Barros, José De Anchieta Cintra Da Costa Nunes, Cláudio Luis Santos Sampaio, and Gabriel Barros Gonçalves De Souza. "Moon and tide effects on fish capture in a tropical tidal flat." Journal of the Marine Biological Association of the United Kingdom 91, no. 3 (December 23, 2010): 735–43. http://dx.doi.org/10.1017/s0025315410001955.

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The influence of the lunar phases and tidal range on the fish capture was analysed in a tidal flat in Barra do Paraguaçu (Baía de Todos os Santos). The sampling was realized in the flood tide and ebb tide of the spring (full moon) and neap (waning moon) tides, between June 2007 and May 2008. At all sampling occasions, two parallel drags were accomplished to the tidal flat, in the same direction of the current, in a 100 m long area marked on the beach beforehand, using a seine net of 15 m × 2.0 m with a mesh of 12 mm between adjacent knots. A total of 2312 fish specimens were captured (26.5 kg), belonging to 75 species from 45 families. The mean number of captured fish was significantly larger in full moon at ebb tides, while the mean weight in the captures was larger in ebb tides. There was significant difference in number of species, number of fish, richness and diversity between full and waning moons. The number of fish and biomass were significantly different between tides. Significant differences were found in community structure regarding trophic groups in relation to tide and moon, although the classic diversity indices did not capture this effect between tides. Furthermore, it was possible to identify preferences of occurrence related to the change of tide in dominant species.

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Costanza, Girolamo, Giovanni Ottavio Delle Monache, Maria Elisa Tata, and Stefano Filosi. "Development of SMA Spring Linear Actuator for an Autonomous Lock and Release Mechanism: Application for the Gravity-Assisted Pointing System in Moon to Earth Alignment of Directional Devices." Aerospace 9, no. 11 (November 21, 2022): 735. http://dx.doi.org/10.3390/aerospace9110735.

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The next generation lunar reflector (NGLR) experiment is one of the experiments selected by NASA in the framework of the commercial lunar payload services (CLPS) initiative. The experiment, inspired by the lunar laser ranging (LLR) experiments of the Apollo era, is basically a single cube corner reflector (CCR) capable of reflecting a beam coming from a laser station on Earth that must be deployed on the Moon and pointed toward the mean Earth direction. In this work, a prototype of an actuator for the lock and release system of the reflector package was conceived, built, and tested in laboratory conditions. Since the entire pointing system must be passive, the actuator is designed to be operated by an SMA spring actuated by the thermal radiation of the Sun and regolith on the Moon. In lab conditions, the prototype, activated by a heat gun, showed the capability of the SMA spring to operate a lock and release pin, whose diameter is 4 mm, subjected to a preload of F = 7 N exerted by the releasing spring.

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Kurdi, Holdani, Ulfa Fitriati, M. Ainun Najib, and Aulia Isramaulana. "PERUBAHAN TERJADINYA PUNCAK PASANG SURUT SUNGAI BARITO AKIBAT PEMANASAN GLOBAL." INFO-TEKNIK 20, no. 1 (June 20, 2020): 71. http://dx.doi.org/10.20527/infotek.v20i1.6960.

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Regional development engineering in coastal areas, tidal land reclamation, delta area reclamation and port planning, tidal knowledge is very important. Tides mainly occur due to the gravitational forces of the moon, sun, and other planets. The influence of different gravitational forces can be predicted precisely because the rotation and revolutionary movements of the earth, moon, sun, and other planets take place with very high order. The tidal period every day is mainly determined by the rotation of the earth with a 24-hour period. Influence of the sun even though its attraction is only half that of the lunar pull, its influence should not be ignored As understood months around the earth with a period of about 29.5 days. When the position of the moon-earth-sun is in line, the tidal forces of the sun and moon strengthen each other. At that time spring tide occurred. Whereas if the sun-earth forms an angle of 90 degrees, then the minimum tides occur (neap tide). The two conditions are about 7 days old, according to the moon's revolution. Because of the influence of the inertia of the mass of water, the spring and neap tide occur between one and three days after these extreme conditions occur. In short-term studies often researchers take extreme conditions, namely during the tidal peak and peak tide (spring tide), because it does not require a long time compared to researching during a longer tide period. The research approach that will be carried out is whether the tide and peak peaks still occur 1-3 days after the full moon and the dead moon, whether there is a change in the height of the tide and ebb during a certain period due to global warming. As a result of global warming, it is also an effect on the water level of the Barito River. There was a decrease in the maximum water level which previously was around 3 m, now only around 2 m, the minimum water level previously around 2 m was now below 1 m. This will affect the hydrotopographic conditions of tidal swamp land, land that was previously type A can change to type B and so on. The highest tides on the Barito River often occur in the dead months, namely the 1st and 29th of the Hijri.

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Jiao, Jiu J. "Crescent Moon Spring: A Disappearing Natural Wonder in the Gobi Desert, China." Ground Water 48, no. 1 (January 2010): 159–63. http://dx.doi.org/10.1111/j.1745-6584.2009.00599.x.

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Kumar, Dr Yogendra. "Contribution of Vedanga Astrology in Vedarthavavodh (वेदार्थाववोध में वेदांग ज्योतिष का योगदान)." International Journal of Multidisciplinary Research Configuration 2, no. 2 (April 29, 2022): 10–14. http://dx.doi.org/10.52984/ijomrc2203.

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In this research paper, the seasons are described, Samvatsara has been conceived as a bird, whose face is spring, south side is summer, tail is rain, autumn is north side and Hemant is middle, in Aitareya Brahman only five seasons are indicated. . The description of the constellations, the description of the seven horses of the Sun, the rise and fall of the phases of the Moon, have been highlighted on this topic, apart from this, the subject related to the Panchang has been studied. KeyWords: Season, Nakshatra, Samvatsara, Sun-Moon

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11

Lee, Seokwoo. "Korea." Asia-Pacific Journal of Ocean Law and Policy 7, no. 2 (December 16, 2022): 307–12. http://dx.doi.org/10.1163/24519391-07020009.

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Abstract The Japanese government on 13 April 2021 announced its 30-year plan to release radioactive contaminated wastewater from the Fukushima nuclear power plant into the Pacific Ocean from the spring of 2023. Korea’s former President Moon Jae In, ordered Korea’s ministries to explore how to resolve the matter through the International Tribunal for the Law of the Sea (itlos) through filing a lawsuit and potentially requesting provisional measures. There are several dispute resolution methods under international law. President Moon’s order to file a suit and potentially request provisional measure is one approach to resolving disputes. However, President Moon acted prematurely because even though the Japanese government had announced its plans to release radioactive contaminated wastewater from spring of 2023, the timing of this discharge was unclear. Since the release would have taken more than two years from Moon’s order, it would have been sufficient to respond by expressing “deep regret” and seek other ways to proceed under international law.

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12

Mulherin, B. L., J. W. Soukup, S. Hetzel, and C. J. Snyder. "Retrospective evaluation of canine and feline maxillomandibular trauma cases." Veterinary and Comparative Orthopaedics and Traumatology 27, no. 03 (2014): 198–203. http://dx.doi.org/10.3415/vcot-13-06-0075.

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Summary Objectives: To determine relationships between seasonality and lunar cycle and the frequency of maxillomandibular (MM) and non-maxillomandibular (non-MM) injury in canine and feline trauma patients. Methods: A medical records database was searched to identify all MM trauma patients (n = 67) and a random sample of non-MM trauma patients (n = 129) according to search criteria. Season of injury, moon phase, and moon luminosity were calculated for the date of injury. Results: Maxillomandibular injury occurred predominately in the spring and decreased through winter while non-MM injury occurred more frequently in the summer and fall. The difference in the frequency of MM and non-MM injuries during different seasons was not significant (p = 0.071). When comparing the amount of moon illuminated when injuries occurred during the quarters before or after the full moon, a difference (p = 0.007) was noted with a greater number of injuries occurring immediately following the full moon. Clinical significance: These results may guide clinicians to closely evaluate trauma patients that are presented on emergency during a particular season or lunar phase. Based on the season at the time of injury, close evaluation for MM versus non-MM trauma may be appropriate.

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Zhang, Wei, Gaosen Zhang, Xiukun Wu, Guangxiu Liu, Zhibao Dong, Jianjun Qu, Yun Wang, and Tuo Chen. "Bacterial diversity in the sediment of Crescent Moon Spring, Kumtag Desert, Northwest China." Journal of Arid Land 9, no. 2 (January 18, 2017): 278–86. http://dx.doi.org/10.1007/s40333-017-0052-0.

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Pang, YingJun, JianJun Qu, KeCun Zhang, ZhiShan An, and QingHe Niu. "Quantitative analysis on the dynamic characteristics of megadunes around the Crescent Moon Spring, China." Journal of Arid Land 6, no. 3 (September 17, 2013): 255–63. http://dx.doi.org/10.1007/s40333-013-0245-0.

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15

Wood, Warner James. "Alimony, and: And I Remember it Now, and: First Saturday of Spring, and: Moon Song." Appalachian Heritage 45, no. 1 (2017): 34–37. http://dx.doi.org/10.1353/aph.2017.0027.

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Kondratyeva, Lubov’ M., Oksana S. Polevskaya, Evgeniya M. Golubeva, Anna V. Shtareva, and Natal’ya S. Konovalova. "Element composition of ground water and speleothem “moon milkˮ in a karst cave Proshchal’naya (Far East)." LITOSFERA, no. 6 (December 28, 2018): 928–41. http://dx.doi.org/10.24930/1681-9004-2018-18-6-928-941.

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Object of research.The aim of this work was the comparative analysis of element composition of groundwater (drip, fracture), water from the interior of the watercourse in a karst cave Proshchal’naya (Khabarovsk Territory) and the surface water of the nearest river Sagdy-Selanka. The great interest was the study of speleothem (dropstones) “moon milk” in the cave Proshchal’naya.Materials and methods.Speleothem “moon milk” was investigated with a scanning electron microscope (EVO-40HV, CarlZeiss, Germany) and silicon-drift x-ray detector X-MAX 80 мм2 . By ICP-MS method a comparative analysis of element composition of groundwater (drip, fracture), water from an internal stream in the cave Proshchal’naya and surface water of the river Sagdy-Selenka were carried out.Results.Maximum concentrations of calcium, iron and manganese was installed in the spring, between drip and fracture water and magnesium – in flowing waters (inland watercourse caves and Sagdy-Selanka R.). It was determined that visually plastic and homogeneous mass of speleothem “moon milk” is heterogeneous and contains various microstructures. Tubular microstructures were represented by richer elemental compo sition (C, O, Ca, Fe, Mn, Si, Al, and S) compared with club-shaped formations (C, O, Ca, and Na). The binding matrix in the composition of the “moon milk” were reticular structures similar to actinomycente mycelium and bacterial films. Findings. The results of studies conducted in a monsoon climate may be interesting for researchers which study karst processes in other climatic zones.

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Zhang, Kecun, Jianjun Qu, Qinghe Niu, Zhefan Jing, and Zhishan An. "Characteristics of wind-blown sand in the region of the Crescent Moon Spring of Dunhuang, China." Environmental Earth Sciences 70, no. 7 (March 12, 2013): 3107–13. http://dx.doi.org/10.1007/s12665-013-2372-5.

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Sharma, Manish Kumar, Anita Kumari, Iqbal Khan, Ashok Kumar Sharma, K. L. Sharma, Rekhraj Meena, and Ayushi Nigam. "For aHealthy Life, the Role of Aahara–Viharain Ritucharya." International Research Journal of Ayurveda & Yoga 05, no. 04 (2022): 85–87. http://dx.doi.org/10.47223/irjay.2022.5411.

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There are three seasons in general: winter, summer, and rainy season. Six seasons are considered in Ayurveda: Vasant, Grishma, Varsha, Sharad, Hemant, and Shishir. The 12 months of the year have been classified into these seasons by Acharya Sushrut. In Visarga, there are two seasons: the first is when the sun goes towards the north, and the second is when the sun moves towards the south. These are referred to as Adanakala And Visargakala,respectively. The input period has winter (shishir),spring (vasant ritu),and summer (grishma ritu)seasons, while the Visarga period has varsha(monsoon), autumn (sharad ritu)and (Pri-winter) Hemant seasons. The Sun is strong andthe moon is week at the moment of the exchange. The Moon is powerful and the Sun is weak during the Visarga era. The shishirand hemant rituis of great strength, the vasant and sharadis of medium strength and the varsha and grishmais of low strength.Keywords:Ritu, Ahar, Vihar, Pathya, Apathya

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Alejandro, Villa B., Jorge Belmar-Pérez, Campa J. Sara De La, Sergio A. GUZMÁN-DEL PRÓO, and Jorge Carrillo-Laguna. "The Puerulus Settlement of Red Spiny Lobster (Panulirus Interruptus) in Bahía Tortugas, Baja California, Mexico." Crustaceana 69, no. 8 (1996): 949–57. http://dx.doi.org/10.1163/156854096x00394.

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AbstractThe settlement of the puerulus stage of the Red Spiny Lobster (Panulirus interruptus) was measured in Bahía Tortugas, Baja California, using artificial collectors of the GuSi type. In the period 1993-1995 monthly sampling during the new moon phase was carried out. Catch rates per collector ranged from 1 to 10 pueruli. Mean catch per site ranged from 0 to 2.52 puerulus/collector/new moon phase. The general settlement pattern showed a conspicuous seasonal cycle where autumn was the dominant season, during spring there was a second minor peak. In both years September and October showed the highest catches, but September 1994 to February 1995 was a longer settlement period with maximum catches. The carapace length varied from 6.5 to 33.5 mm, 7.5 mm being the most frequent size. The season of maximum settlement seems to be related with a maximum sea temperature (20 to 21°C) which in Baja California occurs during the autumn.

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Fuller, C. J., and Penny Logan. "The Navarātri festival in Madurai." Bulletin of the School of Oriental and African Studies 48, no. 1 (February 1985): 79–105. http://dx.doi.org/10.1017/s0041977x00026987.

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Navarātri (Tam. Navarāttiri) is one of the most popular and important annual festivals in the south Indian city of Madurai. The same is true elsewhere in the state and, in somewhat different forms, the festival is also popular in many other regions of India, notably Bengal (where it is known as Durgā Pūjā) and Karnataka (where it is called Dasarā). Navarātri means ‘nine nights’ and throughout India the festival is celebrated on the first nine lunar days (tithi) of the bright fortnight (i.e. the fortnight ending on full moon) of the lunar month of āśvina. In the Tamil calendar, however, the year is divided into twelve solar months and Navarātri is said to occupy the nine lunar days beginning with the day after new moon in the solar month of puraṭṭāci (September-October). Very occasionally, the Tamil formula may supply the wrong date. In many years, the festival only lasts eight weekdays, as two lunar days may fall within one weekday. (In some parts of India, a Navarātri festival is celebrated in the spring, but that is not discussed here.)

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Weeks, J. M., and P. G. Moore. "The Effect of Synchronous Moulting on Body Copper and Zinc Concentrations in Four Species of Talitrid Amphipods (Crustacea)." Journal of the Marine Biological Association of the United Kingdom 71, no. 2 (May 1991): 481–88. http://dx.doi.org/10.1017/s0025315400051729.

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Analysis of the total copper and zinc content of four species of talitrid amphipods, Orchestia gammarellus, O. mediterranea, Talitrus saltator and Talorchestia deshayesii throughout a complete spring/neap tidal cycle failed to reveal any significant effects of moulting upon body copper or zinc in any species. Moulting was synchronized to the lunar cycle only in T. saltator, taking place 5–7 days prior to a new moon. The fact that no significant changes in body metal concentrations took place with the moult cycle is discussed in relation to the use of talitrid amphipods in copper and zinc biomonitoring programmes.

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Spence-Bailey, Lisa M., Dale G. Nimmo, Luke T. Kelly, Andrew F. Bennett, and Michael F. Clarke. "Maximising trapping efficiency in reptile surveys: the role of seasonality, weather conditions and moon phase on capture success." Wildlife Research 37, no. 2 (2010): 104. http://dx.doi.org/10.1071/wr09157.

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Context. Designing an appropriate survey protocol requires understanding of how capture rates of target species may be influenced by factors other than on-ground abundance, such as weather conditions or seasonality. This is particularly relevant for ectotherms such as reptiles, as activity can be affected by environmental conditions such as ambient temperature. Aims. The present study examines factors affecting capture success of reptiles in semi-arid environments of southern Australia, and addresses the following two main questions: (1) what is the influence of weather and seasonal factors on capture rates of reptiles, and (2) what are the implications for developing an effective protocol for reptile surveys? Methods. We surveyed reptiles using pitfall traps in spring and summer of 2006/07 and 2007/08 at sites (n = 280) throughout the Murray Mallee region of south-eastern Australia. We used mixed-effect regression models to investigate the influence of seasonal and weather-related variables on species’ capture success. Key results. Total captures of reptiles, and the likelihood of capture of 15 reptile species, increased with rising daily temperature. Greater numbers of individual species were captured during spring than in summer, even though temperatures were cooler. This probably reflects greater levels of activity associated with breeding. Several species were more likely to be captured when maximum or minimum daily temperatures exceeded a certain level (e.g. Lerista labialis, Delma australis, Nephrurus levis). Other factors, such as rainfall and moon phase, also influenced capture success of some species. Conclusions. Surveys for reptiles in semi-arid environments are likely to capture the greatest diversity of species on warm days in late spring months, although surveys on hot days in summer will enhance detection of particular species (e.g. Morethia boulengeri, Varanus gouldii). We recommend trapping during periods with maximum temperatures exceeding 25–30°C and minimum overnight temperatures of 15°C. Finally, trapping during rainfall and full-moon events will maximise chances of encountering species sensitive to these variables (blind snakes and geckoes). Implications. Selecting the most favourable seasonal and weather conditions will help ensure that reptile surveys maximise the likelihood of capturing the greatest diversity of reptiles, while minimising trap-effort required.

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Wisdom, Michelle M., Michael D. Richardson, Douglas E. Karcher, Donald C. Steinkraus, and Garry V. McDonald. "Flowering Persistence and Pollinator Attraction of Early-spring Bulbs in Warm-season Lawns." HortScience 54, no. 10 (October 2019): 1853–59. http://dx.doi.org/10.21273/hortsci14259-19.

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Early-spring flowering bulbs can increase biodiversity while adding color to lawns and other grassy areas. However, few studies have investigated whether bulbs can flower and persist in warm-season lawns or provide feeding habitat for pollinating insects. Thirty early-spring flowering bulbs, including species of Anemone, Chionodoxa, Crocus, Eranthis, Hyacinthus, Ipheion, Iris, Leucojum, Muscari, and Narcissus, were established in bermudagrass (Cynodon dactylon L. Pers) and buffalograss [Buchloe dactyloides (Nutt.) J.T. Columbus] lawns in late autumn 2015 in Fayetteville AR. Bulbs were assessed over three growing seasons for flowering characteristics, persistence, and their ability to attract pollinating insects. A growing degree day model was also developed to predict peak flowering times in our region. Numerous bulb entries produced abundant flowers in bermudagrass and buffalograss lawns in the first year after planting, but persistence and flower production were reduced in both the second and third years of the trial. Five bulbs persisted for multiple years in both turfgrass species and continued to produce flowers, including Crocus flavus Weston ‘Golden Yellow’ (crocus), Leucojum aestivum L. (spring snowflake), Narcissus (daffodil) ‘Baby Moon’, Narcissus ‘Rip Van Winkle’, and Narcissus ‘Tete-a-Tete’. Several bulbs, primarily crocuses and Muscari spp. (grape hyacinth), were also observed to attract pollinating insects, principally honey bees (Apis mellifera). These results demonstrate that some early-spring bulbs can persist in competitive warm-season turfgrasses, while providing pollinator forage, but species and cultivar selection is critical for long-term success.

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Su, Chunli, Yanxin Wang, Shemin Ge, Zhiheng Li, and Junxia Li. "Origin of the Crescent Moon Spring in the Gobi Desert of northwestern China, based on understanding groundwater recharge." Journal of Hydrology 580 (January 2020): 124344. http://dx.doi.org/10.1016/j.jhydrol.2019.124344.

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Roper, Brett B., and Dennis L. Scarnecchia. "Emigration of age-0 chinook salmon (Oncorhynchus tshawytscha) smolts from the upper South Umpqua River basin, Oregon, U.S.A." Canadian Journal of Fisheries and Aquatic Sciences 56, no. 6 (June 1, 1999): 939–46. http://dx.doi.org/10.1139/f99-023.

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Two rotating smolt traps were used through 4 consecutive years to monitor emigrations of age-0 chinook salmon (Oncorhynchus tshawytscha) from two watersheds of the upper South Umpqua River basin, Oregon, U.S.A. The number of wild smolts moving past the mainstem South Umpqua River trap ranged from 26 455 in 1991 to less than 5000 in 1993. The number of wild smolts passing the Jackson Creek trap ranged from 13 345 in 1991 to 0 in 1993. Higher numbers of wild smolts were significantly (P = 0.003) correlated with higher numbers of prespawning adults counted in index reaches the preceding year. Timing of emigration of smolts was found to be significantly related to stream temperature (P < 0.05) and phase of the lunar cycle (P < 0.05) but not related to changes in discharge (P > 0.05). Median emigration dates, which varied over 9 weeks, were earlier when spring water temperatures were higher. On average, two thirds of yearly smolt runs occurred when the moon was either waning or new, even though these moon phases were present only about half of the time. Significantly (P < 0.05) more fish than expected emigrated past both traps when day length was increasing.

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Jeffs, Andrew, Nick Tolimieri, and John C. Montgomery. "Crabs on cue for the coast: the use of underwater sound for orientation by pelagic crab stages." Marine and Freshwater Research 54, no. 7 (2003): 841. http://dx.doi.org/10.1071/mf03007.

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Several studies have suggested that underwater sound may provide an orientation cue for the pelagic stages of coastal crustacea, such as crabs and lobsters, to find their way from the open ocean to the coast where they can settle. Yet, there has been no field evidence to support this phenomenon and it is unclear whether pelagic crustacean stages even have the ability to orient towards sources of underwater sound, such as that which emanates from reefs. Artificial sources of natural underwater sound were deployed offshore in conjunction with light traps to determine if the larval and post-larval stages of coastal crabs were attracted to coastal reef sound. The results demonstrated that the pelagic stages of crabs respond to underwater sounds and that they may use underwater sound to orient towards the coast. The orientation behaviour was modulated by lunar phase, being evident only during first- and last-quarter moon phases, at the time of neap tides. Active orientation during neap tides may take advantage of these incoming night-time tides for predator avoidance or may permit more effective directed swimming activity than is possible during new and full moon spring tides.

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Criales, Maria M., Ian C. Zink, Michael B. Robblee, and Joan A. Browder. "Seasonal abundance and diel behavior of roughneck shrimps (species of Rimapenaeus Pérez Farfante & Kensley, 1997) (Decapoda: Dendrobranchiata: Penaeidae) in northwestern Florida Bay, Florida, USA." Journal of Crustacean Biology 40, no. 5 (August 1, 2020): 498–511. http://dx.doi.org/10.1093/jcbiol/ruaa057.

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Abstract A large number of roughneck shrimps, Rimapenaeus Pérez Farfante & Kensley, 1997, were collected in northwestern Florida Bay, southern Florida over four consecutive years (2000–2003) of monthly sampling during new-moon periods. Juveniles of Rimapenaeus spp. were more abundant than pink shrimp Farfantepenaeus duorarum (Burkenroad, 1939) juveniles, which are well-recognized and abundant inhabitants of Florida Bay. High Rimapenaeus spp. abundance was unexpected because the genus was previously reported only as occasional in Florida Bay. The populations of Rimapenaeus spp. were composed of late postlarvae and immature juveniles, suggesting that the northwestern border of Florida Bay serves as a nursery ground for this species. A clear seasonal recruitment pattern was observed with large peaks of postlarvae and small juveniles occurring in summer-fall and large juveniles in spring. The summer-fall peaks occurred during months with high mean water level and sea surface temperature; these two factors significantly predicted Rimapenaeus spp. abundance. Overnight hourly behavioral studies revealed that Rimapenaeus spp. juveniles were almost exclusively present in the water column during the dark hours of the ebb tide during current speed minimum. Juvenile abundance significantly differed between moon phases with shrimps being virtually absent during the illuminated full moon. These results indicate that Rimapenaeus spp. are phototactic negative, which may explain the low presence of this species in previous Florida Bay surveys conducted during daylight hours. This study highlights the previously unrecognized contribution of the abundance of juveniles of Rimapenaeus spp. to benthic-oriented crustacean communities of western Florida Bay and its border at the southwestern Florida Shelf.

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Hay, D. E. "Tidal Influence on Spawning Time of Pacific Herring (Clupea harengus pallasi." Canadian Journal of Fisheries and Aquatic Sciences 47, no. 12 (December 1, 1990): 2390–401. http://dx.doi.org/10.1139/f90-266.

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Dates of over 17 000 records of Pacific herring (Clupea harengus pallasi) spawns from 1951 to 1986 in British Columbia were examined by tidal or lunar phases. The frequency of spawns was significantly higher during neap tides following a new moon. The effect was greatest in spawning areas close to the open Pacific and least in the inside waters of the Strait of Georgia. The mechanism of tidal influence on spawning is uncertain but may involve inhibition of spawning during periods of strong spring tides corresponding to periods of full and new moons. An association between spawning time and tidal phases requires that the annual calendar dates of spawning times change between years. A tidal cycle (or a synodic month) is about 29.6 d, and 12 synodic mo equals 355.4 d, whereas a calendar year is about 365.2 d. Therefore, the dates of tidal phases, such as the springtide, are either about 10 d earlier or 5 d later relative to the previous year. Other possible consequences of tidal influence include the timing of spawning waves and differences in size composition and egg size between waves.

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Jihong, Dong. "Investigation on the Degradation of Natural Heritage of Singing Sand Mountain and Crescent Moon Spring at Dunhuang City, China." Chinese Journal of Population Resources and Environment 5, no. 4 (January 2007): 85–91. http://dx.doi.org/10.1080/10042857.2007.10677536.

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Sharpe, David J., and Ross L. Goldingay. "Time budget of the squirrel glider (Petaurus norfolcensis) in subtropical Australia." Australian Journal of Zoology 66, no. 4 (2018): 251. http://dx.doi.org/10.1071/zo18049.

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Exudivorous mammals exploit food items of high quality and high rates of renewal, offset by wide dispersion and variable availability. How this influences foraging effort and size-related foraging efficiency remains poorly described. We examined the time budget of 5–6 male and 5–6 female squirrel gliders (Petaurus norfolcensis) during 6–8 nights in each of three seasons that were stratified by moon phase. Radio-collared gliders were observed during a series of 1-h focal observations from dusk until dawn. Feeding dominated the time budget, accounting for 78% of observation time, or 85% of time when combined with behaviours associated with foraging. Females appear to maximise feeding rates before entering the energetically demanding phase of late lactation. Little time was spent resting while outside the den. Longer nights and the full moon were associated with later emergence and earlier retirement times. Animals re-entered their tree-hollow dens during the night, representing 2% of activity in late spring, 18% in winter and 9% in autumn (10% overall). This behaviour may relate to predation risk and lactation demands. We reviewed the percentage of the time budget that petaurid gliders devoted to feeding and found no clear relationship with body size.

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Taylor, Matthew D. "Spatial and temporal patterns of habitat use by three estuarine species of mysid shrimp." Marine and Freshwater Research 59, no. 9 (2008): 792. http://dx.doi.org/10.1071/mf07247.

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The mysids Rhopalopthalmus egregius, Haplostylus dakini and Doxomysis australiensis are abundant yet unstudied omnivorous crustaceans in Australian estuaries. Habitat use and population dynamics were investigated for these species over spring and summer in the Tweed River, Australia, to explore their ecological role in estuarine ecosystems. Overall, mysids were concentrated in shallow unvegetated and deep unvegetated estuarine habitats. H. dakini were most abundant in shallow and deep bare habitats at night, whereas R. egregius were most abundant in deep bare habitats during the night. D. australiensis were present across all habitats in the night, but negligible numbers were present during the day. Significantly greater numbers of R. egregius and D. australiensis were sampled during the new moon, compared with the full moon. Significantly larger R. egregius and D. australiensis individuals were present in benthic habitats at night, indicating possible partitioning of habitat for juvenile and adult subpopulations. Adaptive foraging strategies and habitat use facilitates the coexistence of sympatric mysid species, H. dakini and R. egregius, and within-species habitat partitioning allowed juvenile R. egregius to avoid interaction with adult R. egregius. The observed dynamics minimize inter- and intra-specific predation between mysids, and by other predators, while optimizing access to key trophic resources.

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Contreras, Jorge E., Mauricio F. Landaeta, Guido Plaza, F. Patricio Ojeda, and Claudia A. Bustos. "The contrasting hatching patterns and larval growth of two sympatric clingfishes inferred by otolith microstructure analysis." Marine and Freshwater Research 64, no. 2 (2013): 157. http://dx.doi.org/10.1071/mf12232.

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Larval abundance, age, growth and hatching patterns of two sympatric clingfishes, Gobiesox marmoratus and Sicyases sanguineus (Pisces, Gobiesocidae), were estimated by using otolith microstructure analysis and compared on the basis of collections performed during the austral spring in 2010 off the coast of central Chile. G. marmoratus larvae were more abundant than S. sanguineus larvae during the study period. For both species, the sagittae deposited micro-increments during embryonic development (before hatching) and a hatch mark was observable in all examined otoliths. The sagittae otoliths of G. marmoratus grew in radius, perimeter and area faster than did the otoliths of S. sanguineus. Both species showed significant (P < 0.05) differences in larval growth and lunar periodicity of the hatching events. G. marmoratus hatched at smaller sizes (2.6 mm) mainly during the first-quarter moon and the larvae grew at rates of 0.24 ± 0.01 mm day–1. S. sanguineus hatched as larger larvae (>3 mm) during the first-quarter and full moons and grew at slower rates (0.14 ± 0.01 mm day–1) during the initial 25 days. The high abundance of larval clingfish in near-shore waters, temporal decoupling among the hatching events, and the different growth rates may be tactics to increase self-recruitment in coastal waters.

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Jasińska, Karolina D., Mateusz Jackowiak, Jakub Gryz, Szymon Bijak, Katarzyna Szyc, and Dagny Krauze-Gryz. "Habitat-Related Differences in Winter Presence and Spring–Summer Activity of Roe Deer in Warsaw." Forests 12, no. 8 (July 22, 2021): 970. http://dx.doi.org/10.3390/f12080970.

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Preliminary research conducted in Warsaw in the 1970s and 2000s showed that roe deer (Capreolus capreolus) stayed in forest habitat and avoided anthropogenic areas. Activity and exploration patterns of animals are shaped by indices of anthropogenic disturbances, elevated in large cities. The aims of the study were (1) to compare the presence of roe deer in natural and anthropogenic habitats of Warsaw during three periods: 1976–1978, 2005–2008 and 2017–2021, based on snow tracking on transect routes (681.2 km in total), and (2) to describe the presence and activity of roe deer in relation to human disturbances in selected urban forests in its reproductive period (March–August), based on camera trap survey (2019–2020, 859 observations, 5317 trap-days in total). The number of tracks was higher in natural habitat during all three periods, with the highest value in 2017–2021 (9.85/km/24h). The peak of roe deer activity was recorded at dusk, and it changed with moon phases between spring and summer. Landscape connectivity and level of light pollution did not affect the activity pattern of roe deer. Our research showed that roe deer inhabiting urban areas avoided human presence by using well-covered habitats and being active in periods when the level of human disturbance was lower.

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Jentzen, Anna, Joachim Schönfeld, Agnes K. M. Weiner, Manuel F. G. Weinkauf, Dirk Nürnberg, and Michal Kučera. "Seasonal and interannual variability in population dynamics of planktic foraminifers off Puerto Rico (Caribbean Sea)." Journal of Micropalaeontology 38, no. 2 (December 20, 2019): 231–47. http://dx.doi.org/10.5194/jm-38-231-2019.

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Abstract. The state of a population of planktic foraminifers at a certain time reflects multiple processes in the upper ocean, including environmental conditions to which the population was exposed during its growth, the age of the cohorts, and spatiotemporal patchiness. We carried out depth-stratified (0–60, 60–100 m) replicated sampling off Puerto Rico in autumn 2012, revisiting three stations previously sampled in autumn 1994 and spring 1995, in order to analyze seasonal and interannual variability of planktic foraminifers and the stable isotopic composition of their tests. The merged dataset from all three sampling campaigns allows us to assess short- and long-term changes in foraminiferal population dynamics and the spatial assemblage coherency along the shelf edge. All three sample series cover more than 2 weeks during either spring (1995) or autumn (1994, 2012) and include the time of the full moon when reproduction of some surface-dwelling planktic foraminifers has been postulated to take place. Our analyses indicate that interannual variability affected the faunal composition, and both autumn assemblages were characterized by oligotrophic tropical species, dominated by Trilobatus sacculifer and Globigerinoides ruber (white and pink variety). However, G. ruber (white) had a higher abundance in 1994 (37 %) than in 2012 (3.5 %), which may be partially due to increasing sea surface temperatures since the 1990s. Between 60 and 100 m water depth, a different faunal composition with a specific stable oxygen isotope signature provides evidence for the presence of the Subtropical Underwater at the sampling site. Measurements on T. sacculifer sampled in autumn 2012 revealed that test size, calcification and incidence of sac-like chambers continued to increase after full moon, and thus no relation to the synodic lunar reproduction cycle was recognized. During autumn 2012, outer bands of hurricane Sandy passed the Greater Antilles and likely affected the foraminifers. Lower standing stocks of living planktic foraminifers and lower stable carbon isotope values from individuals collected in the mixed layer likely indicate the response to increased rainfall and turbidity in the wake of the hurricane.

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Luxi, ZHOU, QIU Qianlinglin, TANG Jianfeng, XU Yaoyang, PAN Junbiao, and WANG Xiaode. "Characteristics of spring green algae blooms and their influencing factors in an urban lake, Moon Lake in Ningbo City, China." Journal of Lake Sciences 31, no. 4 (2019): 1023–34. http://dx.doi.org/10.18307/2019.0422.

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Faillettaz, R., R. Voué, R. Crec’hriou, LH Garsi, G. Lecaillon, S. Agostini, P. Lenfant, and JO Irisson. "Spatio-temporal patterns of larval fish settlement in the northwestern Mediterranean Sea." Marine Ecology Progress Series 650 (September 17, 2020): 153–73. http://dx.doi.org/10.3354/meps13191.

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Most coastal fish species spend their early life stages in the pelagic environment, before settling in coastal habitats. The variability in the arrival of larvae to coastal habitats provides information on the species’ biology and recruitment potential. To explore the dynamics of larval fish supply to coastal habitats in the NW Mediterranean Sea, 13 sites were monitored using light-traps, from July 2012 to December 2015. Most variation in catches per unit effort (CPUE) among topographic basins and species were statistically significant for high (quantile 75%) and very high (quantile 90%) catches only. At the yearly scale, CPUE displayed strong seasonality, and 3 main species assemblages were detected in late spring-early summer, summer and late autumn-early winter. At the monthly scale, CPUE were higher around the new moon for all quantiles and temporally autocorrelated at a lag of ~28 d. Larval supply also varied spatially with site-specific associations and with riverine influence. Altogether, these results confirm that the previously described patterns of larval supply observed in tropical and subtropical environments (e.g. the high variability at all spatial and temporal scales and the strong influence of the moon) also apply to Mediterranean fish assemblages. Our quantile-based approach demonstrated that the larval supply in the NW Mediterranean Sea is a solid candidate for monitoring the state of the marine ecosystems, highlighting the need to continue such time series.

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Magaña, Lizeth O., Kurt D. Retherford, Dennis Bodewits, Lori M. Feaga, Cesare Grava, Paul D. Feldman, Thomas K. Greathouse, and John W. Noonan. "LRO-LAMP Observations of the Preperihelion Coma of Comet C/2013 A1 (Siding Spring)." Planetary Science Journal 3, no. 1 (January 1, 2022): 12. http://dx.doi.org/10.3847/psj/ac3fa5.

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Abstract The Lyman-Alpha Mapping Project (LAMP) UV spectrograph on board the Lunar Reconnaissance Orbiter observed comet C/2013 A1 (Siding Spring) from lunar orbit at closest approach. On 2014 September 5, Siding Spring came within ∼0.89 au of the Earth–Moon system and provided an opportunity for LAMP to contribute to the broader campaign of observations. The comet coma was imaged during two consecutive orbits, approximately 2 hr apart. Coma emissions of atomic oxygen were resolved within LAMP observations at distances up to ∼1.4 × 106 km from the comet nucleus. We report an atomic production rate for the observed oxygen of 9.42 ± 0.22 × 1027 s−1. We additionally place upper limits on the column densities of candidate species including noble gases and primary transitions. Leveraging this, we place upper limits on the production of hydrogen and carbon of <3.59 × 1026 s−1 and <8.41 × 1025 s−1, respectively. Additionally, we derive OH and H2O production rates and estimate an upper limit on the production of CO. The H2O (8.17 ± 2.64 × 1027 s−1) and OH (7.53 ± 2.244 × 1027 s−1) production rates are found to be in general agreement with previous studies when production rates are derived utilizing oxygen observations, branching ratios, and empirical formulations. Similarly, the upper limit on the production of CO (<1.33 × 1028 s−1) is found to be in good agreement with previous studies (within ∼10%) when we utilize the upper limit on CO Fourth Positive group emissions.

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Hirose, Shigeo, and Hiroyuki Kuwabara. "Design of Three-wheeled Planetary Rover Tri-StarII." Journal of Robotics and Mechatronics 12, no. 4 (August 20, 2000): 446–52. http://dx.doi.org/10.20965/jrm.2000.p0446.

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Many studies have been made concerning the planetary Rover, the essential element in the planet exploration mission, and some have already been put into practical use in exploration missions. In this paper, we propose an expandable three-wheeled rover, Tri-StarII, as a planetary rover having a new mechanism. Tri-StarII has three drive wheels and does not need suspension mechanism, so the drive mechanism is simplified and lightened. By use of this feature, the body is designed to be an expandable type with the wheels attached to a slide arm. By folding it up in the lander carrying it to the surfaces of the moon or Mars, and expanding to large size when running, it can achieve running stability equivalent to larger rovers. The wheels are attached to the body with an offset wheel steering mechanism. For the expansion and steering mechanisms, latches having very small actuators are used and the increase in weight is minimized by introduction of these mechanisms. Further, the running wheel uses a spring wheel usable in space environments. By using the expansion mechanism for the spring wheel, the energy loss in running is decreased and performance is improved. We confirmed the feasibility of an experimental unit.

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Gilmour, James, Conrad W. Speed, and Russ Babcock. "Coral reproduction in Western Australia." PeerJ 4 (May 18, 2016): e2010. http://dx.doi.org/10.7717/peerj.2010.

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Larval production and recruitment underpin the maintenance of coral populations, but these early life history stages are vulnerable to extreme variation in physical conditions. Environmental managers aim to minimise human impacts during significant periods of larval production and recruitment on reefs, but doing so requires knowledge of the modes and timing of coral reproduction. Most corals are hermaphroditic or gonochoric, with a brooding or broadcast spawning mode of reproduction. Brooding corals are a significant component of some reefs and produce larvae over consecutive months. Broadcast spawning corals are more common and display considerable variation in their patterns of spawning among reefs. Highly synchronous spawning can occur on reefs around Australia, particularly on the Great Barrier Reef. On Australia’s remote north-west coast there have been fewer studies of coral reproduction. The recent industrial expansion into these regions has facilitated research, but the associated data are often contained within confidential reports. Here we combine information in this grey-literature with that available publicly to update our knowledge of coral reproduction in WA, for tens of thousands of corals and hundreds of species from over a dozen reefs spanning 20° of latitude. We identified broad patterns in coral reproduction, but more detailed insights were hindered by biased sampling; most studies focused on species ofAcroporasampled over a few months at several reefs. Within the existing data, there was a latitudinal gradient in spawning activity among seasons, with mass spawning during autumn occurring on all reefs (but the temperate south-west). Participation in a smaller, multi-specific spawning during spring decreased from approximately one quarter of corals on the Kimberley Oceanic reefs to little participation at Ningaloo. Within these seasons, spawning was concentrated in March and/or April, and October and/or November, depending on the timing of the full moon. The timing of the full moon determined whether spawning was split over two months, which was common on tropical reefs. There were few data available for non-Acroporacorals, which may have different patterns of reproduction. For example, the massivePoritesseemed to spawn through spring to autumn on Kimberley Oceanic reefs and during summer in the Pilbara region, where other common corals (e.g.Turbinaria&Pavona) also displayed different patterns of reproduction to theAcropora. The brooding corals (Isopora&Seriatopora) on Kimberley Oceanic reefs appeared to planulate during many months, possibly with peaks from spring to autumn; a similar pattern is likely on other WA reefs. Gaps in knowledge were also due to the difficulty in identifying species and issues with methodology. We briefly discuss some of these issues and suggest an approach to quantifying variation in reproductive output throughout a year.

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Sousa, Joana, and Ana Luísa Luz. "‘The Tides Rhyme with the Moon’: The Impacts of Knowledge Transmission and Strong Spring Tides on Rice Farming in Guinea-Bissau." Human Ecology 46, no. 2 (March 23, 2018): 147–57. http://dx.doi.org/10.1007/s10745-018-9980-3.

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Bezerra, Dandara M. M., Douglas M. Nascimento, Emmanoela N. Ferreira, Pollyana D. Rocha, and José S. Mourão. "Influence of tides and winds on fishing techniques and strategies in the Mamanguape River Estuary, Paraíba State, NE Brazil." Anais da Academia Brasileira de Ciências 84, no. 3 (July 17, 2012): 775–88. http://dx.doi.org/10.1590/s0001-37652012005000046.

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This work was carried out in two small fishing communities, Barra de Mamanguape and Tramataia, Northeastern Brazil. The aim was to study these traditional fishermen's knowledge and perception about tide and wind classifications, as well as their fishing strategies and techniques. Our research methodology involved various techniques: free interviews and semi-structured ones, guided tours and direct observations. The results obtained show the fishermen's classification of the tides according to the phases of the moon: 'breaking tide', 'flushing tide', 'dead tide' and 'big tide' designated technically these last as neap tide and spring tide, respectively. Wind is also an essential factor for the fishermen to make successful catches, and they classify it according to direction: North, South, East, Southeast, Southwest, Northeast and Northwest. The data show that fishermen's knowledge can also be useful in devising plans for management and conservation studies for this estuary.

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Abascal, Francisco J., Jaime Mejuto, Manuel Quintans, and Ana Ramos-Cartelle. "Horizontal and vertical movements of swordfish in the Southeast Pacific." ICES Journal of Marine Science 67, no. 3 (November 11, 2009): 466–74. http://dx.doi.org/10.1093/icesjms/fsp252.

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Abstract Abascal, F. J., Mejuto, J., Quintans, M., and Ramos-Cartelle, A. 2010. Horizontal and vertical movements of swordfish in the Southeast Pacific. – ICES Journal of Marine Science, 67: 466–474. In all, 21 swordfish (Xiphias gladius) were tagged with pop-up archival satellite tags in the Southeast Pacific. Despite problems of premature release, the information obtained provided insight into the horizontal and vertical behaviour of the species in the area. A consistent migratory pattern was observed, fish moving northwest by autumn and presumably returning south by early spring. Swordfish typically forage in deep water during the day and stay in the mixed layer at night, although this behaviour is occasionally modified. The maximum depth recorded was 1136 m, and dives deeper than 900 m were found in five of the six tags analysed. There was a significant positive relationship between average depth by night and visible moon fraction.

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Hanna, Gillian. "Waiting for Spring to Come Again: Feminist Theatre, 1978 and 1989." New Theatre Quarterly 6, no. 21 (February 1990): 43–56. http://dx.doi.org/10.1017/s0266464x00003961.

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Most of the heavily-quoted interviews available on feminist theatre are in serious need of updating. A current account is needed of ‘feminism and theatre’ as experienced by feminist theatre practitioners, and as perceived by feminist theatre students, critics, players and their audiences. To meet this need, NTQ plans a series of interviews with women involved in the British feminist theatre movement today, whose career paths trace developments and shifts in the feminist theory and practice of the past fifteen years. The first interview is with Gillian Hanna, who worked with the 7:84 Theatre Company and with Belt and Braces from 1971 to 1975, before co-founding the Monstrous Regiment feminist theatre group in 1975. Hanna worked exclusively within the Regiment from 1975 until 1981–82. and is one of the three original members who still actively participate in Regimental management, production, and performance, though she now works extensively outside the group as well, having acted in repertory at the Liverpool Everyman and in Newcastle, Sheffield and Derby. Recently, Hanna spent the best part of a year playing in The House of Bernardo Alba. which opened at the Lyric. Hammersmith, and ran in the West End, and in the Spring of 1989 she played in Caryl Churchill's Ice Cream at the Royal Court. Her acting credits include work in TV and film, and her interests extend to translation of playtexts from French and Italian: she translated Dario Fo's Elizabeth, and is currently on a commission to translate (and re-translate) the complete oeuvre of the one-woman plays of Franca Rame and Dario Fo. Three of the Rame/Fo plays – under the joint title A Common Woman – were recently produced at the Sheffield Crucible and at the Half Moon in London, for which performance Hanna won the 1989 Time Out ‘01 for London’ Award. Projects currently under way within the Regiment include an adaptation of a Marivaux play (The Colony), and possible plans to tour both A Common Woman and Beatrice. She is interviewed by Lizbeth Goodman, originally a New Yorker, and currently a junior member and scholar of St. John's College and a graduate researcher in the English Faculty of Cambridge University, where she is working on a doctoral thesis on feminist theatre since 1968, and a book on the politics of theatre funding.

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徐, 若安. "An Interpretation of the English Translation of Xu Yuanchong’s The Moon over the River on a Spring Night from “Theory of Sublimity”." Modern Linguistics 10, no. 01 (2022): 9–14. http://dx.doi.org/10.12677/ml.2022.101002.

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Wijayarini, Maria A., and Eugenius A. Renjaan. "Korelasi Pasang Surut dan Kelahiran Bayi." Jurnal Keperawatan Indonesia 2, no. 7 (April 24, 2014): 232–41. http://dx.doi.org/10.7454/jki.v2i7.297.

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Pada daerah-daerah terpencil dimana keterbatasan peralatan dan tenaga kesehatan merupakan kendala dalam memperbaiki angka kematian maternal dan perinatal, dibutuhkan antisipasi terhadap masalah-masalah sulit yang berkaitan dengan aspek kehidupan penduduk khususnya kelahiran bayi. Kenyataan bahwa 2/3 wilayah Indonesia merupakan areal laut, memberikan kontribusi yang besar terhadap seluruh aspek kehidupan penduduknya. Salah satu fenomena laut yang dominan yang mempengaruhi aspek kehidupan penduduk khususnya kelahiran bayi adalah fenomena pasang surut, yang besar dan kecilnya ditentukan oleh gaya pembangkit pasang. Studi kasus ini merupakan suatu kajian ilmiah untuk melihat hubungan antara fenomena pasang surut dengan frekuensi serta tipe kelahiran bayi. Dari 332 kelahiran bayi di Rumah Sakit Umum Pusat Nasional Cipto Mangunkusumo pada bulan April 1993 ternyata 54,22% merupakan kelahiran yang terjadi pada saat pasang. Dengan uji statistic kai-kuadrat diketahui bahwa frekuensi kelahiran bayi memiliki keterikatan dengan kondisi pasang surut yang ditunjukkan dengan nilai X2 hitung 9,828 > X2 tabel 6,635 dengan α = 0,001. Analisi regresi linear terhadap keeratan hubungan antara gaya pembangkit pasang dan frekuensi kelahiran pada tipe persalinan spontan untuk usia ibu 16-35 tahun dinyatakan dengan persamaan Y= 3,439 + 0,55 X dengan r= 0,66. Rata-rata periode pasang memberikan harapan terjadinya kelahiran bayi yang relative lebih tinggi dibandingkan dengan surut pada hampir keseluruhan umur bulan terutama pada usia ibu antara 16-35 tahun. Untuk usia 16-35 tahun pada tipe persalinan spontan pasang memberikan peluang jumlah persalinan lebih tinggi terutama pada bulan penuh 22 (6,627%) dan bulan baru 36 (10,843%). Sedangkan kelahiran tipe persalinan nonspontan (tipe 2) umumnya terjadi pada saat periode pasang surut dan terutama pada usia <16 dan >35 tahun. Kenyataan ini berkaitan dengan irama biologis ibu, sedangkan bagaimana terjadinya proses secara kimiawi ataupun fisis akibat irama biologis tersebut merupakn teka-teki yang harus dijawab melalui penelitian selanjutnya. Abstract In the rural and remote areas where the health care facilities as well health care providers are limited, are thought as obstacle in decreasing the maternal mortality and perinatal mortality. There is a need to anticipate the problems related to the livelihood of its people, especially labor process. In fact, two-third of the area of Indonesia consists of the sea. This is a major contributor to the live of its people. One of the sea dominant phenomenon, especially to the labor process is the tide phenomenon. The magnitude of this phenomenon is determined by the tide producing forces. The case study was a scientific assessment to determined the correlation between the tide phenomenon and type of birth as well as frequency of birth. At Cipto Mangunkusumo Hospital in April 1993, showed that 54,22% births, out of 332 births, occur at the spring tide. Chi-square statistical analysis shows that the frequency of birth correlated with the tide phenomenon (X2 9.828 > X2 table 6.635 (α= 0.001)). The analysis of linear regression demonstrated that there is a significant spontaneous type of labor, of the group of 16-35 year-old mother (Y=3,439 +0,55X, where r=0,66). In average, the spring tide are higher probability of births when it was compared to the neap tide, at the all moon period, especially among the group of 16-35 years-old mother. In the same group, the spring tide are relatively higher births events of the spontaneous labor, in the full moon [22 (6,62%)] and new moon [36 (10,843%)]. Generally, the non-spontaneous labor occurred during the neap tide, especially among the group of <16 and 35 years-old mother. The data is suspected to be related to the biologic rhythms of the mother. Its chemical and physic processes are still questioned and need to be investigated.Keywords: Tide, births, biological rhythms.

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Zhang, Weimin, Lihai Tan, Zhishan An, Kecun Zhang, Yang Gao, and Qinghe Niu. "Morphological variation of star dune and implications for dune management: a case study at the Crescent Moon Spring scenic spot of Dunhuang, China." Journal of Arid Land 11, no. 3 (June 2019): 357–70. http://dx.doi.org/10.1007/s40333-019-0099-1.

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47

Spivak, Eduardo D., Elisabeth Arévalo, José A. Cuesta, and J. Ignacio González-Gordillo. "Population structure and reproductive biology of the stone crab Xantho poressa (Crustacea: Decapoda: Xanthidae) in the ‘Corrales de Rota’ (south-western Spain), a human-modified intertidal fishing area." Journal of the Marine Biological Association of the United Kingdom 90, no. 2 (July 9, 2009): 323–34. http://dx.doi.org/10.1017/s0025315409990592.

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The present study describes the reproductive biology, population structure and life history traits of the abundant intertidal crab Xantho poressa. Between March 2007 and April 2008, a total of 1918 individuals were collected in Corrales de Rota (south-western Spain), a human-modified intertidal habitat characterized by an artificial high complexity. Suitable refuges for crabs (cobbles and boulders) are very abundant in this area and density (maximum of 50 ind*m−2) was directly related with the area covered by these stones. In spring and summer, size–frequency distributions showed a polymodal pattern with seasonal variations related to the incorporation of juveniles to the adult population. Newly settled juveniles were not found in the Corrales suggesting an ontogenetic migration from a distant recruitment habitat. The annual reproductive cycle was seasonal and successive peaks in the abundance of ovigerous females were observed in late spring and summer. Females probably produced multiple broods during a long intermoult period. The gonadosomatic index had a cyclic pattern of variation with peaks two weeks prior to those of ovigerous females; it was lower during the non-reproductive season. The hepatosomatic index was high during spring, decreased during summer and increased gradually at the end of the reproductive season. There was a monthly cycle of larval release resulting from a combination of a cyclic and synchronic ovarian maturity, oviposition and incubation; hatching took place during neap tides when the moon was at last quarter. The adaptive significance of the rhythmic reproduction and hatching observed may not be explained by the predator avoidance hypotheses. The overall sex-ratio did not differ from 1:1 but one male and several females coexist under a stone, indicating a female biased operative sex-ratio. The combination of a complex habitat, its use, and a strong sexual dimorphism suggest a refuge–defence polygenic mating system. The survival and fitness of X. poressa in the Corrales de Rota are probably enhanced by the availability of shelter, a consequence of a highly complex habitat, and probably, of human activity.

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48

Vendel, Ana Lúcia, Sabine Granado Lopes, César Santos, and Henry Louis Spach. "Fish assemblages in a tidal flat." Brazilian Archives of Biology and Technology 46, no. 2 (March 2003): 233–42. http://dx.doi.org/10.1590/s1516-89132003000200015.

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Studies were carried out on fish assemblages in a tidal flat. Samples were obtained monthly at low tide of the half moon in the tidal flat of Paranaguá Bay, Brazil, with two seine nets, one with a 1 mm mesh, 30 m in length and 3 m in height and another with a 10 mm mesh, 65 m in length and 2 m in height. A total of 8,890 fish were captured, comprising 24 families and 53 species. The most abundant species were Harengula clupeola and Atherinella brasiliensis, which represented 63.4% of the total, capture. A seasonal tendency was observed in the abundance of fishes, with less fishes being captured during winter and part of spring. The number of species showed a seasonal pattern, with the gradual decrease through winter and a marked increase in summer. The community structure index indicated seasonal changes in the assemblage. The faunistic similarities between months separated the 12 months into four major groups. The seasonal pattern was apparent in the numerically dominant species and the Cluster Analysis revealed five main groups.

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Lalita, Jans D. "UNIQUENESS OF LARVAL RELEASING OF Littoraria Scabra L. (GASTROPODA: LITTORINIDAE), IN TOMBARIRI MANGROVE, NORTH SULAWESI,INDONESIA." JURNAL ILMIAH PLATAX 6, no. 2 (July 26, 2018): 1. http://dx.doi.org/10.35800/jip.6.2.2018.20574.

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This research was found novelty of reproduction strategy uniqueness of L. scabra that very rare in nature, reverse male function fertilized eggs are sucked for brooding in mantle of male up to hatching as veligers, and thus, the males are capable of releasing the larvae in full and new moon at spring tide during the research. The second finding in reproduction strategy uniqueness of L. scabra that mating individuals, both males and females, released their larvae during research period. Key Words : Littoraria scabra, uniqueness, releasing, veliger, male and female ABSTRAKPenelitian yang amat langka di alam ini menemukan kebaharuan keunikan strategi reproduksi Littoraria. scabra, di waktu kopulasi jantan berperan seks terbalik menyedot sebagian telur yang dibuahi dan dierami telur-telur yang dibuahi dalam tubuhnya sampai menetas menjadi larva-larva serta melepaskan larva-larva tersebut di bulan penuh dan baru yang mengikuti siklus pasang selama penelitian. Temuan amat langka kedua keunikan strategi reproduksi L. scabra, yang amat langka di alam dengan pasangan jantan-betina lagi kawin melepaskan larva-larva baik jantan maupun betina pada siklus bi-lunar bersamaan dengan siklus pasang selama penelitian. Kata Kunci : Littoraria scabra, keunikan,pelepasan, veliger, jantan dan betina

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Boscarino, Brent T., Lars G. Rudstam, Ellis R. Loew, and Edward L. Mills. "Predicting the vertical distribution of the opossum shrimp, Mysis relicta, in Lake Ontario: a test of laboratory-based light preferences." Canadian Journal of Fisheries and Aquatic Sciences 66, no. 1 (January 2009): 101–13. http://dx.doi.org/10.1139/f08-190.

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Light and temperature strongly influence the vertical distribution of the mysid shrimp, Mysis relicta . We monitored the vertical movements and depth selection behavior of mysids exposed to different light intensities and light–temperature gradients in the laboratory and derived a mysid light preference function in units relevant to mysid vision: “mylux”. Mysids preferred light levels between 10−8 and 10−7 mylux (∼10−6 to 10−5 lux) and rarely moved into waters of 10−3 mylux (∼0.1 lux) and greater. A model that assumed equal weight and independence of mysid light and temperature preference functions successfully predicted the proportion of mysids found in two different temperature–light combinations in the laboratory. This model also predicted the depth of maximum mysid density to within 2 m on two spring nights and within 5 m on two summer nights of varying moon phase and thermal conditions in Lake Ontario. This study provides novel insights into how temperature and light interact to influence the vertical distribution of mysids. Our model may be used to predict mysid vertical distribution in any deepwater system inhabited by mysids in which the primary mysid predators are visual feeders.

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Journal articles on the topic '- Spring moon'

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