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Journal articles on the topic 'M. gigas'

Author: Grafiati

Published: 8 March 2025

Last updated: 31 July 2025

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1

Gibbs, M., E. Scanes, L. Parker, et al. "Larval energetics of the Sydney rock oyster Saccostrea glomerata and Pacific oyster Magallana gigas." Marine Ecology Progress Series 656 (December 10, 2020): 51–64. http://dx.doi.org/10.3354/meps13538.

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Larvae are a critical dispersal stage of marine invertebrates, and their survival depends on nutrition and energetics. This study compared the size, survival, metabolic rate and egg and larval lipid class profiles of larvae of the endemic Sydney rock oyster Saccostrea glomerata and the invasive Pacific oyster Magallana gigas through a period of starvation for 5 and 9 d after fertilisation. Starved larvae grew without food until 5 d of age, at which point they stopped developing, but resumed growth when fed. Egg lipids profiles comprised 78.1 and 74.5% triacylglycerol for M. gigas and S. glomer

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Ezgeta-Balić, Daria, Tanja Šegvić-Bubić, Elizabeta Briski, et al. "Rasprostranjenost nezavičajne vrste kamenice Magallana gigas(Thunberg, 1793) duž istočne obale Jadrana." Acta Adriatica 60, no. 2 (2019): 137–46. http://dx.doi.org/10.32582/aa.60.2.3.

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Non-native Pacific oyster Magallana gigas (Thunberg, 1793) was introduced to the Mediter-ranean Sea for aquaculture purposes in the 1960s. Although this species was not introduced for aquaculture to the Croatian part of the Adriatic Sea, in the 1970s, it was reported in the Lim Bay, in the North-eastern Adriatic. Until recently, there has been no research on the species in the Croatian part of the Adriatic. The aim of this research was to summarize existing and novel data on the distribution of M. gigas in coastal areas of the Eastern Adriatic and to provide a baseline for the future monitorin

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Martin, Brad, Charlie Huveneers, Simon Reeves, and Ryan Baring. "Mangrove-associated Pacific oysters (Magallana gigas) influence estuarine biodiversity." NeoBiota 98 (March 7, 2025): 1–26. https://doi.org/10.3897/neobiota.98.131103.

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Estuarine ecosystems are often characterised by endemic foundation organisms which facilitate ecosystem interactions and processes established over millennia. Introduction of non-native foundation species can significantly alter ecological communities and functions. Here, we assessed the effects of introduced, reef-forming Pacific oyster Magallana gigas, within a temperate Australian mangrove-dominated estuary. Specifically, we investigated whether mangrove-attached M. gigas oyster reefs influenced intertidal fish and invertebrate communities, and fish foraging behaviour. We measured and contr

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Wolfe, Marah L., Chelsea M. Bowers-Doerning, Anabell Espinosa, et al. "Intra-decadal increase in globally-spread Magallana gigas in southern California estuaries." PLOS ONE 19, no. 5 (2024): e0302935. http://dx.doi.org/10.1371/journal.pone.0302935.

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Introduction and establishment of non-indigenous species (NIS) has been accelerated on a global scale by climate change. NIS Magallana gigas’ (formerly Crassostrea gigas’) global spread over the past several decades has been linked to warming waters, specifically during summer months, raising the specter of more spread due to predicted warming. We tracked changes in density and size distribution of M. gigas in two southern California, USA bays over the decade spanning 2010–2020 using randomly placed quadrats across multiple intertidal habitats (e.g., cobble, seawalls, riprap) and documented de

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Martin, Brad, Charlie Huveneers, Simon Reeves, and Ryan Baring. "Mangrove-associated Pacific oysters (Magallana gigas) influence estuarine biodiversity." NeoBiota 98 (March 7, 2025): 1–26. https://doi.org/10.3897/neobiota.98.131103.

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Estuarine ecosystems are often characterised by endemic foundation organisms which facilitate ecosystem interactions and processes established over millennia. Introduction of non-native foundation species can significantly alter ecological communities and functions. Here, we assessed the effects of introduced, reef-forming Pacific oyster <i>Magallana gigas</i>, within a temperate Australian mangrove-dominated estuary. Specifically, we investigated whether mangrove-attached <i>M. gigas</i> oyster reefs influenced intertidal fish and invertebrate communities, and fish foraging behaviour. We meas

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BATISTA, F. M., P. BOUDRY, A. DOS SANTOS, T. RENAULT, and F. RUANO. "Infestation of the cupped oysters Crassostrea angulata, C. gigas and their first-generation hybrids by the copepod Myicola ostreae: differences in susceptibility and host response." Parasitology 136, no. 5 (2009): 537–43. http://dx.doi.org/10.1017/s0031182009005691.

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SUMMARYWe studied the prevalence and intensity of the parasitic copepod Myicola ostreae in 2 closely related oysters Crassostrea angulata and C. gigas and their F1 hybrids. The effects on host and host reaction were also analysed to better understand host-parasite relationships between copepods and bivalve molluscs. Full reciprocal crosses were carried out between C. angulata and C. gigas and the progenies were reared in the wild in Ria Formosa Lagoon (Portugal), allowing natural infestation by M. ostreae. Prevalence and intensity were significantly higher in C. angulata than in C. gigas. The

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Andrade, S. C., G. D. Rossi, and N. M. Martinelli. "Dispersion Pattern of Giant Cicada (Hemiptera: Cicadidae) in a Brazilian Coffee Plantation." Environmental Entomology 49, no. 5 (2020): 1019–25. http://dx.doi.org/10.1093/ee/nvaa096.

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Abstract The giant cicada Quesada gigas (Olivier, 1790) (Hemiptera: Cicadidae) is a major pest of coffee plants in Brazil. To ensure the rational management and ecological equilibrium, information about the behavior, dispersion, and reproduction of giant cicada is fundamental. The present work was conducted in an area of 97 ha planted with Coffea arabica L. to investigate adult dispersion as well as mating and oviposition behaviors of Q. gigas. A sound trap was placed at a ‘release point’ used for the attraction, marking, and release of adults in the area. The recapture of insects was performe

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Wilkie, Emma M., and Melanie J. Bishop. "Differences in shell strength of native and non-native oysters do not extend to size classes that are susceptible to a generalist predator." Marine and Freshwater Research 63, no. 12 (2012): 1201. http://dx.doi.org/10.1071/mf12078.

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Whether non-native species proliferate to pest status can depend on top-down control from native predators. Among epifaunal molluscs, the shell serves as a main line of anti-predator defence and shell strength may determine the ease with which generalist predators can penetrate prey. We assessed whether, in eastern Australia, the faster growth of the non-native Pacific oyster, Crassostrea gigas, than that of the native Saccostrea glomerata comes at the cost of reduced investment in shell thickening, rendering the non-native oyster more susceptible to a generalist predator, the muricid gastropo

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Giarratana, F., D. Muscolino, Ch Beninati, et al. "Gymnorhynchus gigas in Lepidopus caudatus (Actinopterygii: Perciformes: Trichiuridae): prevalence and related effects on fish quality." Czech Journal of Food Sciences 32, No. 4 (2014): 320–25. http://dx.doi.org/10.17221/330/2013-cjfs.

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We evaluated the effects of Gymnorhynchus gigas on the freshness and hygienic quality of Lepidopus caudatus. Total Volatile Basic Nitrogen (TVB-N), Trimethylamine Nitrogen (TMA-N), as well as Specific Spoilage Organisms (SSOs) are the most important freshness indicators in fish. Our study was carried-out on 65&nbsp;specimens of L. caudatus kept in ice and stored at 2&deg;C for different period of time. The microbiological charge of SSOs recovered on a portion of parasitised muscles (MP) was compared with those recovered on portions of parasite-free muscles (M). The contents of TVB-N an

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Jung, AS, HW van der Veer, CJM Philippart, et al. "Impacts of macrozoobenthic invasions on a temperate coastal food web." Marine Ecology Progress Series 653 (October 29, 2020): 19–39. http://dx.doi.org/10.3354/meps13499.

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Invasions of marine species are changing coastal food webs worldwide, impacting on trophic interactions between native species (e.g. predator-prey relationships). Here, the impact of 3 macrozoobenthic invasive species on food web structure and functioning at Balgzand (western Wadden Sea) is quantified by using ecological network analysis (ENA). The bivalves Ensis leei and Magallana gigas were observed for the first time in 1984 and 2001, respectively, and the polychaete Marenzelleria viridis appeared in 1989. Although E. leei and M. viridis reached similar peak biomasses in the 2000s (ca. 1700

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Katrasov, S. V., A. N. Bugayets, and V. V. Zharikov. "Evaluation of the Spatial Heterogeneity of the Pacific Oyster <i>Magallana gigas</i> (Thunberg, 1793) Cultivation Conditions Using the FARM Marifarm Management Model in Voevoda Bay." Биология моря 49, no. 1 (2023): 37–44. http://dx.doi.org/10.31857/s0134347523010059.

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In the present study, using the Farm Aquaculture Resource Management (FARM), farm aquaculture resource management model, we calculated the potential productivity of plantations of the oyster Magallana gigas (Thunberg, 1793) (Bivalvia: Ostreidae) in Voevoda Bay (Sea of Japan, Peter the Great Bay, Russkiy Island). When calculating the productivity of cage and bottom plantations of M. gigas, we used the previously obtained results of numerical modeling of bay’s dynamics of hydrological parameters using the open software Delft3D-Flow, taking into account the inflow of fresh water into the bay in 1

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Слынько, Е. Е., and Ю. В. Слынько. "Genetic Diversity of Autochthonous and Introduced Mollusk Species Cultivated in the Black Sea." Vestnik APK Verhnevolzh`ia, no. 4(52) (December 25, 2020): 26–30. http://dx.doi.org/10.35694/yarcx.2020.52.4.005.

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В настоящее время в мирихозяйствах Чёрного моря интенсивно выращиваются три вида двустворчатых моллюсков: тихоокеанская, или гигантская, устрица (Crassostrea gigas, (Thunberg, 1793)), интродуцированная из Дальневосточных морей, и два вида аборигенов – мидия (Mytillus galloprovincialis Lamarck, 1819) и средиземноморский гребешок (Flexopecten glaber (Linnaeus, 1758)). В отношении всех трёх видов выявляются две основные проблемы – точное установление таксономического разнообразия и тенденции в изменениях генетического разнообразия. Все проанализированные устрицы из черноморского питомника могут б

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Fujibayashi, Megumu, Osamu Nishimura, and Takashi Sakamaki. "The Negative Relationship between Fouling Organisms and the Content of Eicosapentaenoic Acid and Docosahexaenoic Acid in Cultivated Pacific Oysters, Crassostrea gigas." Marine Drugs 19, no. 7 (2021): 369. http://dx.doi.org/10.3390/md19070369.

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Bivalves serve as an important aquaculture product, as they are the source of essential fatty acids, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), in our diet. However, their cultivation in the wild can be affected by fouling organisms that, in turn, affect their EPA and DHA content. The effects of fouling organisms on the EPA and DHA contents of cultivated bivalves have not been well documented. We examined the effects of fouling organisms on the EPA and DHA contents and condition index of cultured oysters, Crassostrea gigas, in an aquaculture system. We sampled two-year

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14

Wood, Louisa E., Tiago A. M. Silva, Richard Heal, et al. "Unaided dispersal risk of Magallana gigas into and around the UK: combining particle tracking modelling and environmental suitability scoring." Biological Invasions 23, no. 6 (2021): 1719–38. http://dx.doi.org/10.1007/s10530-021-02467-x.

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AbstractMarine non-indigenous species are a significant threat to marine ecosystems with prevention of introduction and early detection considered to be the only effective management strategy. Knowledge of the unaided pathway has received relatively little attention, despite being integral to the implementation of robust monitoring and surveillance. Here, particle tracking modelling is combined with spatial analysis of environmental suitability, to highlight UK coastal areas at risk of introduction and spread of Magallana gigas by the unaided pathway. ‘Introduction into UK’ scenarios were base

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Armstrong, KN, and SD Anstee. "The ghost bat in the Pilbara: 100 years on." Australian Mammalogy 22, no. 2 (2000): 93. http://dx.doi.org/10.1071/am00093.

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This paper summarises the roost habitat and distribution of the ghost bat, Macroderma gigas (Dobson, 1880), in the Pilbara region of Western Australia, with particular emphasis on natural habitats. The preferred habitat of M. gigas in the Hamersley Ranges appears to be caves beneath bluffs of low rounded hills composed of Marra Mamba geology. Habitats were also found in the larger hills of Brockman Iron Formation in the Hamersley Range, and other formations beneath bluffs composed of Gorge Creek Group geology to the north east. Granite rockpiles are also used in the eastern Pilbara. A summary

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Hand, Suzanne J., Lyndall Dawson, and M. Augee. "Macroderma koppa, a new Tertiary species of false vampire bat (Microchiroptera: Megadermatidae) from Wellington Caves, New South Wales." Records of the Australian Museum 40, no. 6 (1988): 343–51. https://doi.org/10.5281/zenodo.13486087.

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(Uploaded by Plazi for the Bat Literature Project) A new late Tertiary false vampire bat, Macroderma koppa, is described from the Big Sink doline of Wellington Caves, eastern central New South Wales. The new species appears to be the sister-group of the living Australian Ghost Bat, Macroderma gigas. Morphological features that distinguish the new species from M. gigas appear to be plesiomorphies shared with most other megadermatids.

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Hand, Suzanne J., Lyndall Dawson, and M. Augee. "Macroderma koppa, a new Tertiary species of false vampire bat (Microchiroptera: Megadermatidae) from Wellington Caves, New South Wales." Records of the Australian Museum 40, no. 6 (1988): 343–51. https://doi.org/10.5281/zenodo.13486087.

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(Uploaded by Plazi for the Bat Literature Project) A new late Tertiary false vampire bat, Macroderma koppa, is described from the Big Sink doline of Wellington Caves, eastern central New South Wales. The new species appears to be the sister-group of the living Australian Ghost Bat, Macroderma gigas. Morphological features that distinguish the new species from M. gigas appear to be plesiomorphies shared with most other megadermatids.

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Hand, Suzanne J., Lyndall Dawson, and M. Augee. "Macroderma koppa, a new Tertiary species of false vampire bat (Microchiroptera: Megadermatidae) from Wellington Caves, New South Wales." Records of the Australian Museum 40, no. 6 (1988): 343–51. https://doi.org/10.5281/zenodo.13486087.

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(Uploaded by Plazi for the Bat Literature Project) A new late Tertiary false vampire bat, Macroderma koppa, is described from the Big Sink doline of Wellington Caves, eastern central New South Wales. The new species appears to be the sister-group of the living Australian Ghost Bat, Macroderma gigas. Morphological features that distinguish the new species from M. gigas appear to be plesiomorphies shared with most other megadermatids.

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Hand, Suzanne J., Lyndall Dawson, and M. Augee. "Macroderma koppa, a new Tertiary species of false vampire bat (Microchiroptera: Megadermatidae) from Wellington Caves, New South Wales." Records of the Australian Museum 40, no. 6 (1988): 343–51. https://doi.org/10.5281/zenodo.13486087.

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(Uploaded by Plazi for the Bat Literature Project) A new late Tertiary false vampire bat, Macroderma koppa, is described from the Big Sink doline of Wellington Caves, eastern central New South Wales. The new species appears to be the sister-group of the living Australian Ghost Bat, Macroderma gigas. Morphological features that distinguish the new species from M. gigas appear to be plesiomorphies shared with most other megadermatids.

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Wu, Xiaoci, Pengchao Jin, Yang Zhang, and Wei Yu. "Spatial Distribution and Abundance of a Pelagic Squid during the Evolution of Eddies in the Southeast Pacific Ocean." Journal of Marine Science and Engineering 12, no. 6 (2024): 1015. http://dx.doi.org/10.3390/jmse12061015.

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The Humboldt squid (Dosidicus gigas), is a significant economic species off Peru. The abundance and distribution of the species are highly susceptible to fluctuations in marine environmental conditions. The evolution of mesoscale eddies represents one of the dynamic processes in the ocean, exerting varying degrees of influence on regional biogeochemical processes from generation to dissipation. However, the mechanisms governing the regulation of abundance and spatial distribution of D. gigas off Peru during this evolution remain unclear. Therefore, this study employed normalization techniques

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Lunz, Alexandre Mehl, Roni de Azevedo, Moisés Mourão Júnior, Odineila Martins Monteiro, Alessandro Lechinoski, and Luciano Zumerle Zaneti. "Método para monitoramento de ninfas de cigarras e controle com inseticidas em reflorestamentos com paricá." Pesquisa Agropecuária Brasileira 45, no. 7 (2010): 631–37. http://dx.doi.org/10.1590/s0100-204x2010000700001.

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O objetivo deste trabalho foi estabelecer um método para o monitoramento da população de cigarras (Quesada gigas) e para a avaliação da eficácia de doses de thiamethoxam, carbofuran e imidaclopride no controle de ninfas, em reflorestamento com paricá (Schizolobium parahyba var. amazonicum). Foram utilizadas as seguintes dosagens de inseticidas: 2,0, 4,0 e 6,0 kg ha-1 do produto comercial Actara (250 WG), para o princípio ativo thiamethoxan; 7,15, 14,30, 21,45 L ha-1 de Furadan (350 FS), para o carbofuran; e 4,5, 9,0, 13,5 L ha-1 de Provado (200 SC), para o imidaclopride. As três dosagens de ca

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Paredes-López, Daniel, Rizal Robles-Huaynate, Carmela Rebaza-Alfaro, José Delgado-Ramírez, and U. Aldava-Pardave. "Effect of stocking density of juvenile Arapaima gigas on rearing water quality hematological and biochemical profile, and productive performance." Latin American Journal of Aquatic Research 49, no. 2 (2021): 193–201. http://dx.doi.org/10.3856/vol49-issue2-fulltext-2588.

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At inadequate stocking density, fish generally show different physiological responses. The effects of stocking density on Arapaima gigas larvae productive parameters have been determined in a previous study. This study aimed to evaluate the effect of the stocking density on the water quality, hematological and biochemical profile, and productive performance of juvenile A. gigas. One hundred and eighty twelve months old, A. gigas were distributed into tanks using initial densities of 103.90, 157.95 and 220.11 kg m-3 with three replicates. Ammoniacal nitrogen, carbon dioxide, dissolved oxygen pH

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Val, Adalberto Luís, Elizabeth Gusmão Affonso, Roberto Huet de Salvo Souza, Vera Maria Fonseca de Almeida-Val, and Marcia Alves Ferreira de Moura. "Inositol pentaphosphate in the erythrocytes of an Amazonian fish, the pirarucu (Arapaima gigas)." Canadian Journal of Zoology 70, no. 5 (1992): 852–55. http://dx.doi.org/10.1139/z92-121.

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During the Alpha Helix expeditions to the rivers of the Amazon basin, inositol pentaphosphate (IPP) was detected in the erythrocytes of Arapaima gigas. We analyzed the intraerythrocytic phosphate levels of A. gigas specimens during the first year of life in captivity. IPP increased slowly during the first year, stabilizing at around 7 mM when the animals reached 1–1.5 m in length. ATP and GTP concentrations decreased in parallel. Wild animals within the same size range showed similar intraerythrocytic IPP levels. These changes represent qualitative and quantitative adjustments of the principal

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Nelson, J. E., K. A. Christian, and R. V. Baudinette. "Anatomy of the nasal passages of three species of Australian bats in relation to water loss." Australian Journal of Zoology 55, no. 1 (2007): 57. http://dx.doi.org/10.1071/zo06101.

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A previous study found substantial variation in rates of water loss in three species of Australian bats, with the orange leafnosed bat (Rhinonycteris aurantius) having a rate more than twice that of the large bentwing bat (Miniopterus schreibersii) and the ghost bat (Macroderma gigas). Using histological sections, we examined the nasal passages of these species to determine whether any of the species have complex turbinals that may function to reduce respiratory water loss. M. schreibersii has the most complex nasal passages, and R. aurantius has the simplest. Calculations indicate that the re

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Mikac, Barbara, Alessandro Tarullo, Marina Antonia Colangelo, Marco Abbiati, and Federica Costantini. "Shell Infestation of the Farmed Pacific Oyster Magallana gigas by the Endolith Bivalve Rocellaria dubia." Diversity 13, no. 11 (2021): 526. http://dx.doi.org/10.3390/d13110526.

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Oyster shells are substratum for different epibiontic and endobiontic organisms, including pests and parasites. Rocellaria dubia is endolithic and facultative tube-dwelling bivalve, boring in different calcareous substrates, including the shells of bivalves. In 2020, R. dubia was found as endolithic in the shells of the Pacific oyster Magalana gigas, from an oyster farm off the Sacca di Goro lagoon (Emilia-Romagna region, Northern Adriatic Sea, Italy). The purpose of this study was to describe this newly recorded association. Altogether, 136 specimens of R. dubia were found in 15 oysters, phot

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Baudinette, R. V., S. K. Churchill, K. A. Christian, J. E. Nelson, and P. J. Hudson. "Energy, water balance and the roost microenvironment in three Australian cave-dwelling bats (Microchiroptera)." Journal of Comparative Physiology B 170 (September 27, 2000): 438–46. https://doi.org/10.1007/s003600000121.

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The ghost bat, <i>Macroderma gigas</i>, and the orange leaf-nosed bat, <i>Rhinonycteris aurantius</i>, occupy similar ranges across northern Australian and are often found in the same roost caves. Both species are considered rare and vulnerable to further population decline. A third small species, the large bent-wing bat, <i>Miniopterus schreibersii</i>, has a similar body mass to <i>R. aurantius</i>, but has one of the largest ranges of any Australian mammal. In the present study we examine the effect and sensitivity of the animals' roosting microclimates on their energy and water balance. <i

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O’ Reilly, A. J., C. Laide, A. Maloy, et al. "The role of the mussel Mytilus spp. in the transmission of ostreid herpesvirus-1 microVar." Parasitology 145, no. 8 (2017): 1095–104. http://dx.doi.org/10.1017/s0031182017002244.

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AbstractThe Pacific oyster Crassostrea gigas contributes significantly to global aquaculture; however, C. gigas culture has been affected by ostreid herpesvirus-1 (OsHV-1) and variants. The dynamics of how the virus maintains itself at culture sites is unclear and the role of carriers, reservoirs or hosts is unknown. Both wild and cultured mussels Mytilus spp. (Mytilus edulis, Mytilus galloprovincialis and hybrids) are commonly found at C. gigas culture sites. The objective of this study was to investigate if Mytilus spp. can harbour the virus and if viral transmission can occur between mussel

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Sun, Youmei, Jingjing Fu, Enshuo Zhang, et al. "Fingerprint Analysis of Volatile Flavor Compounds in Crassostrea gigas of Different Ploidy and Gender under High-Temperature Incubation." Molecules 28, no. 19 (2023): 6857. http://dx.doi.org/10.3390/molecules28196857.

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In this study, diploid, triploid, and tetraploid Crassostrea gigas samples were subjected to gas chromatography and ion mobility (GC-IMS) to identify and analyze volatile compounds and flavor fingerprints under conditions of high-temperature incubation. The GC-IMS technology identified a total of 54 volatile components in C. gigas. The contents of 1-octen-3-ol, butyl pentanoate, p-methyl anisole, and 2-methyl-2-hepten-6-one in male oysters were significantly higher than in females, while the contents of phenylacetaldehyde, benzaldehyde, 2-ethyl-3-methylpyrazine, 2-ethylfuran, and 2,4-hexadiena

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Selfiannisa, Fania, Suherni Susilowati, Poedji Hastutiek, Lucia Tri Suwanti, Kusnoto Kusnoto, and Agus Sunarso. "Investation of Ectoparasites In Chickens In Village of Kramat District of Bangkalan Regency of Bangkalan." Journal of Parasite Science 2, no. 2 (2019): 57. http://dx.doi.org/10.20473/jops.v2i2.16400.

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A study on the infestation of ectoparasites in chicken’s raised in Village of Kramat, District of Bangkalan, Regency of Bangkalan was conducted between July to October 2017. A total of 60 chickens were examined based on their sex and region of the chicken’s body. Identification was carried out on ectoparasites found identified using permanent mounting methods and scraping. The types of ectoparasites were M. gallinae 77%, L. caponis 52%, M. stramineus 15%, R. sanguineus 3%, G. gallinae 2%, G. gigas 2%, and D. gallinae 2%. Data were analyzed using Chi Square and Correspondence. The results of in

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Rzedowski, J. "Tres dicotiledóneas mexicanas nuevas de posible interés ornamental." Botanical Sciences, no. 35 (December 8, 2016): 37. http://dx.doi.org/10.17129/botsci.1151.

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<p>Populus simaroa, Castilleja venusta y Montarnoa gigas se describen como nuevas a base de material colectado en los estados de Guerrero y México.<br />Populus simaroa sp.n. pertenece a la sección Populus y posiblemente está relacionada con P. grandidentata Michx. Es particularmente notable en su comportamiento fenológico, pues el árbol pierde las hojas al iniciarse la época lluviosa y se cubre de follaje al principio del período de sequía. Se conoce de un área relativamente amplia, pero en general parece ser planta escasa.<br />Castilleja venusta sp.n. es una planta anual,

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DECARO, JÚNIOR SERGIO T., NILZA M. MARTINELLI, DOUGLAS H. B. MACCAGNAN, and EDUARDO S. D. B. P. RIBEIRO. "Oviposition of Quesada gigas (Hemiptera: Cicadidae) in coffee plants." Revista Colombiana de Entomología 38, no. 1 (2012): 1–5. https://doi.org/10.25100/socolen.v38i1.8906.

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DECARO JÚNIOR, SERGIO T., MARTINELLI, NILZA M., MACCAGNAN, DOUGLAS H. B., RIBEIRO, EDUARDO S. D. B. P. (2012): Oviposition of Quesada gigas (Hemiptera: Cicadidae) in coffee plants. Revista Colombiana de Entomología 38 (1): 1-5, DOI: 10.25100/socolen.v38i1.8906, URL: http://dx.doi.org/10.25100/socolen.v38i1.8906

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Fang, Xingnan, Xin Zhang, Xinjun Chen, and Wei Yu. "The Impact of Ekman Pumping and Transport on Dosidicus gigas (Jumbo Flying Squid) Fishing Ground by Chinese Jiggers off the Coast of Peru." Journal of Marine Science and Engineering 13, no. 2 (2025): 280. https://doi.org/10.3390/jmse13020280.

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Upwelling is often associated with high productivity, biodiversity, and fishery resource abundance. This study employed a generalized additive model (GAM) to analyze the effects of Ekman pumping and transport on the abundance and distribution of jumbo flying squid (Dosidicus gigas) using wind field data and Chinese commercial fishing catch data off Peru from 2012 to 2020. The results indicate that the spatial distribution of Ekman pumping and transport exhibited significant monthly variation and exerted a considerable impact on the abundance and distribution of D. gigas. Ekman pumping fluctuat

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Meunier, François J., Paolo M. Brito, and Maria-Eduarda C. Leal. "Morphological and histological data on the structure of the lingual toothplate of Arapaima gigas (Osteoglossidae; Teleostei)." Cybium 37, no. 4 (2013): 263–71. https://doi.org/10.26028/cybium/2013-374-005.

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Meunier, François J., Brito, Paolo M., Leal, Maria-Eduarda C. (2013): Morphological and histological data on the structure of the lingual toothplate of Arapaima gigas (Osteoglossidae; Teleostei). Cybium 37 (4): 263-271, DOI: 10.26028/cybium/2013-374-005, URL: http://dx.doi.org/10.26028/cybium/2013-374-005

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ACARLI, Sefa, Harun YILDIZ, and Pervin VURAL. "Morphometric Characteristics of Invasive Species Magallana gigas (Thunberg, 1793) in Bandırma Bay, Marmara Sea." Marine Science and Technology Bulletin 12, no. 3 (2023): 322–31. http://dx.doi.org/10.33714/masteb.1337592.

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Türkiye’s seas are the scene of the spread of invasive species in the entire Mediterranean basin due to the marine transportation of alien species and intensive aquaculture activities. In order to protect the natural ecosystem and track invasive species’ effects, these species must first be accurately identified and their distribution areas specified. The alien species, Magallana gigas (Pacific oyster), has introduced along the Turkish coasts. This study was carried out to determine the morphometric characteristics of Magallana gigas in the Bandırma Bay-Balıkesir between November 2013 and Octo

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Vereecken, Nicolas J., Pietro Niolu, Éric Dufrêne, and Gérard Le Goff. "Observations sur les nids de deux chalicodomes et leurs occupants en Sardaigne (Italie)." Osmia 4 (2010): 15–19. http://dx.doi.org/10.47446/osmia4.4.

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Observations on the nests of two chalicodomes and their occupants in Sardinia (Italy). - We here provide field observations made in spring 2008 in Sardinia on the nesting biology of two mason bees, Megachile (Chalicodoma) parietina (Geoffroy in Fourcroy 1785) and M. (C.) sicula (Rossi 1792) whose females occasionally construct egg-shaped nests perched on tree twigs. Active nests of M. (C.) parietina were also exploited by females of Osmia signata Erichson 1835 and those of M. (C.) sicula were found to be parasitised by Leucospis gigas Fabricius 1793.

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Farias, Izeni Pires, Adam Leão, Yane Santos Almeida, et al. "Evidence of polygamy in the socially monogamous Amazonian fish Arapaima gigas (Schinz, 1822) (Osteoglossiformes, Arapaimidae)." Neotropical Ichthyology 13, no. 1 (2015): 195–204. https://doi.org/10.1590/1982-0224-20140010.

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Farias, Izeni Pires, Leão, Adam, Almeida, Yane Santos, Verba, Júlia Tovar, M, Marcelo Crossa, Honczaryk, Alexandre, Hrbek, Tomas (2015): Evidence of polygamy in the socially monogamous Amazonian fish Arapaima gigas (Schinz, 1822) (Osteoglossiformes, Arapaimidae). Neotropical Ichthyology 13 (1): 195-204, DOI: 10.1590/1982-0224-20140010, URL: http://dx.doi.org/10.1590/1982-0224-20140010

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Pereira-Filho, Manoel, Bruno Adan Sagratzki Cavero, Rodrigo Roubach, Daniel Rabello Ituassú, André Lima Gandra, and Roger Crescêncio. "Cultivo do Pirarucu (Arapaima gigas) em viveiro escavado." Acta Amazonica 33, no. 4 (2003): 715–18. http://dx.doi.org/10.1590/s0044-59672003000400017.

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Foi avaliado o desempenho de juvenis de pirarucu em criação intensiva em viveiros escavados. Oitenta e cinco peixes com peso médio inicial de 133,3 ± 1,3g foram estocados em dois viveiros de 120m² cada (densidade de 1 peixe/3m²), com profundidade média de 1m e alimentados duas vezes ao dia (9:00 e 14:00h) com ração extrusada para peixes carnívoros contendo 40% de proteína bruta. Foi verificado diariamente o consumo de ração, enquanto mensalmente os peixes foram amostrados para a realização de biometrias com a finalidade de verificar seu desempenho em peso e comprimento. Após 12 meses de cultiv

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Lima, Luciana Sampaio, Aldo Aparecido Proietti-Junior, Yan Corrêa Rodrigues, et al. "High Genetic Diversity and Antimicrobial Resistance in Escherichia coli Highlight Arapaima gigas (Pisces: Arapaimidae) as a Reservoir of Quinolone-Resistant Strains in Brazilian Amazon Rivers." Microorganisms 10, no. 4 (2022): 808. http://dx.doi.org/10.3390/microorganisms10040808.

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The increasing prevalence of multi-drug resistant (MDR) Escherichia coli in distinct ecological niches, comprising water sources and food-producing animals, such as fish species, has been widely reported. In the present study, quinolone-resistant E. coli isolates from Arapirama gigas, a major fish species in the Brazilian Amazon rivers and fish farms, were characterized regarding their antimicrobial susceptibility, virulence, and genetic diversity. A total of forty (40) specimens of A. gigas, including 20 farmed and 20 wild fish, were included. Thirty-four quinolone-resistant E. coli isolates

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Matrai, Eszter, Hau Yin Alfred Chan, Fung Ming Leung, Shaw Ting Kwok, Xiao Lin, and Paolo Martelli. "Point for Enrichment, Point for Welfare—Testing Use of a Laser Pointer with Arapaima gigas." Animals 13, no. 8 (2023): 1370. http://dx.doi.org/10.3390/ani13081370.

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The arapaima (Arapaima gigas) is one of the largest freshwater fish species, known to exceed 3 m in total length. It is listed as Data Deficient by the IUCN. A. gigas is native to the Amazon River basin where they are an important food source. Arapaimas are also farmed for meat and for live specimens in various South American and Asian countries. Despite decades of keeping the species in public aquariums, little is known of its behaviour and cognitive abilities. This pilot study provides baseline data on using a green laser pointer as environmental enrichment for this species under human care.

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Kopytina, N. I., and E. A. Bocharova. "Fouling communities of microscopic fungi on various substrates of the Black Sea." Biosystems Diversity 29, no. 4 (2021): 345–53. http://dx.doi.org/10.15421/012144.

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Fungi are the most active biodeteriorators of natural and man-made materials. The article presents generalizations of the studies (2001–2019) of communities of microscopic fungi within biofilms on various substrates: shells of live Mytilus (Mytilus galloprovincialis, 670 specimens) and Ostreidae (Crassostrea gigas, 90 specimens), fragments of driftwood (over 7,000), stones (40), concrete of hydrotechnical constructions along the shoreline (80) and wood between concrete blocks in constructions on the shores (80). The studies were carried out in Odessa Oblast, the coastal zone of Sevastopol and

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Kopytina, N. I., and E. A. Bocharova. "Fouling communities of microscopic fungi on various substrates of the Black Sea." Biosystems Diversity 29, no. 4 (2021): 345–53. http://dx.doi.org/10.15421/10.15421/012144.

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Fungi are the most active biodeteriorators of natural and man-made materials. The article presents generalizations of the studies (2001–2019) of communities of microscopic fungi within biofilms on various substrates: shells of live Mytilus (Mytilus galloprovincialis, 670 specimens) and Ostreidae (Crassostrea gigas, 90 specimens), fragments of driftwood (over 7,000), stones (40), concrete of hydrotechnical constructions along the shoreline (80) and wood between concrete blocks in constructions on the shores (80). The studies were carried out in Odessa Oblast, the coastal zone of Sevastopol and

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42

Vereecken, Nicolas J., Pierto Niolu, Éric Dufrêne, and Goff Gérard Le. "Observations sur les nids de deux chalicodomes et leurs occupants en Sardaigne (Italie)." Osmia 4 (December 31, 2010): 15–19. https://doi.org/10.47446/OSMIA4.4.

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Nous fournissons ici quelques observations de terrain réalisées au printemps 2008 en Sardaigne et relatives à la nidification de deux espèces de chalicodomes, <em>Megachile </em>(<em>Chalicodoma</em>) <em>parietina </em>(Geoffroy dans Fourcroy 1785) et<em> M. </em>(<em>C.</em>) <em>sicula </em>(Rossi 1792) qui construisent parfois des nids ovoïdes perchés sur des rameaux d’arbres. Les nids de <em>M. </em>(<em>C.</em>) <em>parietina </em>étaient également exploités par des femelles d’<em>Osmia signata </em>Erichson 1835 et

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Podolskaya, M., E. Chelebieva, O. Gostyukhina, D. Lavrichenko, and E. Kladchenko. "FUNCTIONAL STATUS OF MAGALLANA GIGAS INFECTED BY PIONE VASTIFICA." Russian Journal of Biological Physics and Chemisrty 8, no. 3 (2024): 353–57. http://dx.doi.org/10.29039/rusjbpc.2023.0633.

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Pacific oyster Magallana gigas (Thunberg, 1793) is an important commercial species of the Black Sea coast of Russia. Black Sea is favorable for the development of regional mariculture, but the existing biotic factors may lead to damage to an oyster farm. In particular, boring sponge Pione vastifica (Hancock, 1849). Boring sponges are a serious problem for mariculture farms, because the affected mussels are withdrawn from trade, which entails economic losses. In this work, the effect of boring sponges on the functional state of hemocytes (the ability to produce reactive oxygen species - ROS and

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Hidayatullah, Adietya Ramadhan, Fauziyah ., and Fitri Agustriani. "PEMETAAN LOKASI HORSESHOE CRABS SEBAGAI PRIMITIVE ANIMAL DI PERAIRAN PESISIR BANYUASIN, PROVINSI SUMATERA SELATAN." Maspari Journal : Marine Science Research 13, no. 2 (2021): 145–54. http://dx.doi.org/10.56064/maspari.v13i2.15771.

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Horseshoe crab atau disebut juga Belangkas atau mimi merupakan hewan primitif. Hewan ini keberadaannya di Indonesia termasuk hewan yang dilindungi. Pemetaan habitat Belangkas adalah salah satu cara untuk melindungi hewan tersebut dari ancaman kepunahan. Informasi ini dapat dijadikan baseline data untuk upaya konservasinya. Tujuan penelitian ini adalah memetakan lokasi Belangkas di perairan pesisir Banyuasin Sumatera Selatan menggunakan software Arcgis. Penelitian ini dilaksanakan pada bulan November-Desember 2019. Hasil identifikasi menunjukkan bahwa terdapat 2 jenis Belangkas yakni Tachypleus

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Melo-Sampaio, Paulo R., and Pablo J. Venegas. "A new species of groundsnake genus Atractus Wagler, 1828 (Serpentes, Dipsadidae) from the Peruvian Andes revealed by unequivocal morphological characters." Evolutionary Systematics 7, no. 2 (2023): 257–66. http://dx.doi.org/10.3897/evolsyst.7.102578.

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Based on an exhaustive revision of external morphological characters we describe a new species of Atractus from the humid montane forest of the Andes of northern Peru, Cajamarca department, occurring at elevations of 1641 to 2161 m. This new species was misidentified as A. gigas in the literature and for more than a decade represented the southernmost record of the that species. In the absence of molecular data and limited by a small sample, we use some underreported characters in the genus Atractus such as the presence of apical pits. Thus, the combination of apical pits as well as other char

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Melo-Sampaio, Paulo R., and Pablo J. Venegas. "A new species of groundsnake genus Atractus Wagler, 1828 (Serpentes, Dipsadidae) from the Peruvian Andes revealed by unequivocal morphological characters." Evolutionary Systematics 7 (August 9, 2023): 257–66. https://doi.org/10.3897/evolsyst.7.102578.

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Based on an exhaustive revision of external morphological characters we describe a new species of Atractus from the humid montane forest of the Andes of northern Peru, Cajamarca department, occurring at elevations of 1641 to 2161 m. This new species was misidentified as A. gigas in the literature and for more than a decade represented the southernmost record of the that species. In the absence of molecular data and limited by a small sample, we use some underreported characters in the genus Atractus such as the presence of apical pits. Thus, the combination of apical pits as well as other char

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Einsle, Ulrich K. "Megacyclops magnus (Marsh, 1920) (Crustacea, Copepoda) in northern Canada, a comparison with European Megacyclops species." Canadian Journal of Zoology 71, no. 7 (1993): 1434–38. http://dx.doi.org/10.1139/z93-198.

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Megacyclops magnus (Marsh, 1920) is redescribed using morphological criteria. A morphometric comparison with European Megacyclops species confirms the validity of this well-characterized species, which has often been synonymized with M. gigas. The relative proportions of the apical spines on the last segment of the P4 endopodite (the inner one being shorter than the outer one) are unique within the genus.

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Lisitskaya, Е. V., and S. V. Shchurov. "The first record of larval <i>Crassostrea gigas</i> (Thunberg 1793) (Bivalvia, Ostreidae) from the Black Sea." Zoologičeskij žurnal 103, no. 5 (2024): 11–15. http://dx.doi.org/10.31857/s0044513424050028.

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Larvae of the oyster, Crassostrea gigas (Thunberg 1793) are being found in the plankton of the Black Sea for the first time. The studies were carried out in 2014–2023 along the Sevastopol coast. Samples were taken monthly with a Jeddy plankton net (inlet diameter 36 cm, mill gas mesh 135 µm). A water layer of 10–0 m was investigated. Live material was processed by total counting the larvae in the Bogorov chamber, using MBS-9 and Mikmed-5 light microscopes. Oyster larvae were recorded in August 2020 and observed in the plankton from the end of August to the beginning of October. They were also

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Nasution, Aurora Khairani. "Fabrication and Characterization of Glucosamine Hydrochloride from Chitin of Horseshoe Crab Shell (Tachypleus gigas)." Journal of Chemical Natural Resources 3, no. 2 (2022): 147–54. http://dx.doi.org/10.32734/jcnar.v3i2.9350.

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Preparation of glucosamine hydrochloride from the chitin of horseshoe crab shells using the chemical hydrolysis method has been done using HCl concentration variation ratios of 7%, 9%, 11%,14 % with a ratio of 9:1 (v/w) for 4 hours at a temperature of 90ºC. Determination of glucosamine hydrochloride characteristics was characterized using Fourier transform-infra red (FT-IR) spectroscopy, in which the characteristics of glucosamine hydrochloride obtained in the OH group of glucosamine hydrochloride were 3446 cm-1 (s), 3448 cm-1 (s), 3450 cm-1 (s), 3448 cm-1 (s), respectively. For NH group of gl

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Cavero, Bruno Adan Sagratzki, Manoel Pereira-Filho, André Moreira Bordinhon, et al. "Tolerância de juvenis de pirarucu ao aumento da concentração de amônia em ambiente confinado." Pesquisa Agropecuária Brasileira 39, no. 5 (2004): 513–16. http://dx.doi.org/10.1590/s0100-204x2004000500015.

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O objetivo deste trabalho foi avaliar a tolerância de juvenis de pirarucu, Arapaima gigas, a concentrações crescentes de amônia na água. Oito peixes (2,6±0,4 kg e 70,5±4,1 cm de comprimento) foram distribuídos aleatoriamente em quatro tanques (0,8x0,9x2,6 m) com 410 L de água tamponada com Na2PO4 e HCl, ambos a 0,1 M, onde ficaram por 33 dias. As concentrações de amônia no plasma sanguíneo dos peixes e na água foram determinadas pelo método do salicilato. A glicose plasmática e os níveis de amônia aumentaram proporcionalmente à concentração de amônia na água. Juvenis de pirarucu toleram altas

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