Bibliografie tematiche / Coastal biology

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Letteratura scientifica selezionata sul tema "Coastal biology"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 1 febbraio 2022

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Articoli di riviste sul tema "Coastal biology"

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Zaini, Muhammad, e Muhammad Arsyad. "High School Students' Critical Thinking Skills through the Development of a Popular Book on Coastal Biology". BIO-INOVED : Jurnal Biologi-Inovasi Pendidikan 3, n. 2 (29 giugno 2021): 138. http://dx.doi.org/10.20527/bino.v3i2.10139.

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The introduction of the potential of coastal biology as a local treasure is important for the general public and students. This study aims to describe the critical thinking skills of high school students through the development of a popular book on coastal biology. This study focuses on small group testing of the Tessmer development research design. The popular book on coastal biology was implemented at Abdul Kadir High School Penyipatan District Tanah Laut Regency, South Kalimantan Province. The research subjects were three students of grade XII. Critical thinking skills are divided into several aspects according to Facione. The instrument used is student worksheet based on popular books on coastal biology. Data is calculated based on weight, then expressed as percent (%) according to the terms of 76-100% (very good), 51-75% (good), 26-50% (quite), <25% (less). The results showed that five aspects of students' critical thinking skills including interpretation, analysis, evaluation, inference, and self-regulation were in good category, and the skills of doing analysis had increased. On the other hand, the skill of explaining has not shown any improvement.Abstrak Pengenalan potensi biologi pesisir sebagai kekayaan lokal penting bagi masyarakat umum dan siswa. Penelitian ini bertujuan untuk mendeSkripsikan keterampilan berpikir kritis siswa SMA melalui pengembangan buku popular biologi pesisir. Penelitian ini fokus pada uji kelompok kecil dari desain penelitian pengembangan Tessmer. Buku populer biologi pesisir diimplementasikan di SMA Abdul Kadir Kecamatan Penyipatan Kabupaten Tanah Laut, Provinsi Kalimantan Selatan. Subjek penelitian adalah tiga orang siswa kelas XII. Keterampilan berpikir kritis dibagi dalam beberapa aspek menurut Facione. Instrumen yang digunakan berupa LKPD berdasarkan buku popular biologi pesisir. Data dihitung berdasarkan bobot, kemudian dinyatakan dengan persen (%) sesuai dengan ketentuan 76-100% (baik sekali), 51-75% (baik), 26-50% (cukup), <25% (kurang). Hasil penelitian menunjukkan lima aspek keterampilan berpikir kritis siswa meliputi interpretasi, analisis, evaluasi, inferensi, dan pengaturan diri memperoleh kategori baik, dan keterampilan melakukan analisis mengalami peningkatan. Sebaliknya, keterampilan melakukan eksplanasi belum menunjukkan perbaikan.
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Crawford, R. M. M. "The biology of coastal sand dunes". Annals of Botany 104, n. 2 (agosto 2009): vi—vii. http://dx.doi.org/10.1093/aob/mcp136.

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Day, John W., A. Eleftheriou, A. Ansell e C. Smith. "Biology and Ecology of Shallow Coastal Waters". Estuaries 20, n. 3 (settembre 1997): 656. http://dx.doi.org/10.2307/1352625.

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Drewitz, Jennifer J., e Joseph M. DiTomaso. "Seed biology of jubatagrass (Cortaderia jubata)". Weed Science 52, n. 4 (agosto 2004): 525–30. http://dx.doi.org/10.1614/ws-03-081r.

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Jubatagrass is one of the most invasive nonnative species along sensitive natural coastal sites of California. This study was designed to understand the biology of reproduction and seed longevity under field conditions. Jubatagrass can produce over 100,000 wind-dispersed seeds from a single inflorescence. Seeds are produced apomictically, and germination is directly related to seed size. Of the total seeds produced, only 20 to 30% were of ample size to readily germinate when exposed to light and under a temperature range similar to coastal environments. Seeds not exposed to light also germinated but at about 30% the level of light-exposed seeds. This suggests that exposed disturbed coastal sites with moderate temperatures have high potential for germination and establishment of jubatagrass. The percentages of germinable and viable seeds were not significantly different, indicating that jubatagrass does not have a primary dormancy. This was supported by field experiments demonstrating that seeds do not persist under natural conditions for more than 6 mo. These results indicate that an intensive 1-yr control program targeting established seedlings and mature plants should sufficiently manage existing populations. However, effective long-term management of jubatagrass must focus on anticipating environments susceptible to invasion, reducing new seed recruitment, and preventing subsequent seed germination and seedling establishment.
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Shay, Kimberly R., e Donald R. Drake. "Pollination Biology of the Hawaiian Coastal VineJacquemontia sandwicensis(Convolvulaceae)". Pacific Science 72, n. 4 (ottobre 2018): 485–99. http://dx.doi.org/10.2984/72.4.8.

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Sullivan, James M., Percy L. Donaghay e Jan E. B. Rines. "Coastal thin layer dynamics: Consequences to biology and optics". Continental Shelf Research 30, n. 1 (gennaio 2010): 50–65. http://dx.doi.org/10.1016/j.csr.2009.07.009.

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Ursi, Suzana, e Naomi Towata. "ENVIRONMENTAL PERCEPTION ABOUT MARINE AND COASTAL ECOSYSTEMS: EVALUATION THROUGH A RESEARCH INSTRUMENT BASED ON MODEL OF ECOLOGICAL VALUES". Problems of Education in the 21st Century 76, n. 3 (15 giugno 2018): 393–405. http://dx.doi.org/10.33225/pec/18.76.393.

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The first aim of research is to propose a research instrument based on Wiseman and Bogner’s Model of Ecological Values, the “Coastal Environment Questionnaire” (CEQ), specifically developed to evaluate the Environmental Perception about marine and coastal ecosystems. The second aim is to explore, using CEQ, the position on the categories from Model of Ecological Values of some basic education students and some pre-service biology teachers from cities located near coastal areas from Brazil. CEQ was modified from “The Environment Questionnaire” (TEQ), which consists of a questionnaire composed of 16 items with Likert-type responses. The first process to have elaborated the new instrument changed the general situations described in the items of TEQ (most related with land environments) to situations related to marine and coastal environments. CEQ has been used with: 63 pre-service biology teachers from a non-coastal city; 79 basic education students from a non-coastal city; and 74 basic education students from a coastal city. All pre-service teachers were placed at Preservation+Utilization- category (100%). However, most students were placed at the Preservation+Utilization- category (around 70%), followed by Preservation+Utilization+ (around 25%), regardless their city location. It is expected that CEQ can be useful on research aim to better understand the perception about marine and coastal environments, contributing to development and evaluation of future Environmental Educational program focus on these important ecosystems. Keywords: basic education students, Coastal Environment Questionnaire (CEQ), environmental perception, Model of Ecological Value, pre-service biology teachers.
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Figueiredo, Marcos de Souza Lima. "POPULATION BIOLOGY OF THE MELON CACTUS Melocactus violaceus subsp. violaceus (CACTACEAE) ON A BRAZILIAN SANDY COASTAL PLAIN". Oecologia Australis 20, n. 01 (aprile 2016): 51–57. http://dx.doi.org/10.4257/oeco.2016.2001.04.

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Driggers, W. B., D. A. Oakley, G. Ulrich, J. K. Carlson, B. J. Cullum e J. M. Dean. "Reproductive biology ofCarcharhinus acronotusin the coastal waters of South Carolina". Journal of Fish Biology 64, n. 6 (giugno 2004): 1540–51. http://dx.doi.org/10.1111/j.0022-1112.2004.00408.x.

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Beacham, Terry D., e Clyde B. Murray. "Variation in developmental biology of sockeye salmon (Oncorhynchus nerka) and chinook salmon (O. tshawytscha) in British Columbia". Canadian Journal of Zoology 67, n. 9 (1 settembre 1989): 2081–89. http://dx.doi.org/10.1139/z89-297.

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Abstract (sommario):
Embryos and alevins of coastal-spawning and interior-spawning sockeye (Oncorhynchus nerka) and chinook (O. tshawytscha) salmon stocks in British Columbia were incubated under controlled water temperatures of 2, 4, 8, 12, and 15 °C. At low incubation temperatures, interior-spawning stocks of both species had smaller eggs and higher embryo survival rates than did coastal-spawning stocks. Interior-spawning stocks had faster developmental rates to alevin hatching and fry emergence than did coastal-spawning stocks. Interior-spawning stocks had proportionately larger alevins or fry at 2 °C (for sockeye salmon) or 4 °C (for chinook salmon) relative to their performance at 8 °C than did coastal-spawning stocks. Red-fleshed chinook salmon had higher embryo survival rates at 15 °C than did white-fleshed chinook salmon, as well as an indication of proportionately larger alevins or fry relative to the performance at lower incubation temperatures. Differences in developmental biology of interior- and coastal-spawning stocks may reflect adaptation to the thermal conditions experienced during development.
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Più fonti

Tesi sul tema "Coastal biology"

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Nilsen, Liv Sigrid. "Coastal heath vegetation in central Norway; recent past, present state and future possibilities". Doctoral thesis, Norwegian University of Science and Technology, Department of Biology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-250.

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Jolley, Elizabeth Charlotte. "The role of coastal defence structures in channeling production in coastal ecosystems". Thesis, University of Southampton, 2008. https://eprints.soton.ac.uk/63289/.

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This study assessed the interaction of coastal defence structures (CDSs), namely shore-parallel ‘low crested breakwater structures’ (LCSs), design features and hydrodynamic regime on the quantity and timings of macroalgae deposition. The employed sampling strategy comprised a spatially and temporally stratitified approach of time-lapse photography of macroalgae deposition, verified with field observations. Field surveys determined the associated ecological assemblages of the sediment infauna and rocky shore epifauna associated with the breakwater scheme, as well as for two nearby beaches with groynes. Further analysis determined decay rates, decay processes, changes in C and N stable isotope values of dominant macroalgal species and the dependence of the faunal assemblages on the decaying macroalgae deposits. Temporal analysis highlights the main factors driving macroalgal deposition were differences in spring and neap tidal range, wave height and sea temperature. Greatest deposition occurred during months of lower wave height and fewer storms, when filamentous red algae and ephemeral green algal species dominated. Results indicated to greater amounts of macroalgae deposits around LCSs than around wooden or granite groynes. Beach elevation best explained the spatial variation, both vertically and horizontally, in the benthic assemblages within the breakwater scheme, with the abundance of detritivorous deposit feeders being significantly correlated with abundance of macroalgae deposits. Orientation of LCSs, relative to wave action, was an important driver of epifaunal assemblages on the CDSs, with the eastward ends of the breakwaters providing the optimum intermediate environment with regards to wave action, exhibiting the greatest abundances of epifauna. Stable isotope analysis showed that the carbon and nitrogen isotopic values of macroalgae changed during the decomposition and were both species and time dependent. Isotope analysis illustrated that decaying macroalgae deposits were of greater trophic importance to species within the LCS ecosystem where there was large macroalgal deposition, than to species within the groyne ecosystem where macroalgal deposition was lower. Key findings of the study illustrate the importance of decaying macroalgae deposits for the local ecosystem via modification of food chain energy flows. Though the ecosystem benefits from this allochthonous resource, deposits may be a nuisance requiring controlled human intervention.
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Fitzgerald, Megan. "The relationship between biodiversity and ecosystem function in a coastal wetland". Thesis, California State University, Long Beach, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1572435.

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Despite reductions in species diversity, few studies in wetlands investigate the relationship between biodiversity and ecosystem function (BEF). My research explores the BEF relationship in a recently restored salt marsh in Long Beach, California. I hypothesized that: (1) increasing plant diversity would result in higher primary productivity and decreased recruitment of native salt marsh plants, (2) observed variation in responses would be correlated with species-specific variation in individual demographic parameters, and (3) variation in demographic parameters and resulting ecosystem processes would be correlated with functional traits. I found that while survival over one year was correlated with elevation, overall percent cover and recruit species richness were positively affected by diversity. Performance patterns reveal variation by species in photosynthetic rate, leaf mass per area and chlorophyll a/b ratios. After one year, I found that the overall diversity patterns were driven by selection effect compared to complementarity.

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Wilson, Benjamin J. "Drivers and Mechanisms of Peat Collapse in Coastal Wetlands". FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3718.

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Coastal wetlands store immense amounts of carbon (C) in vegetation and sediments, but this store of C is under threat from climate change. Accelerated sea level rise (SLR), which leads to saltwater intrusion, and more frequent periods of droughts will both impact biogeochemical cycling in wetlands. Coastal peat marshes are especially susceptible to saltwater intrusion and changes in water depth, but little is known about how exposure to salinity affects organic matter accumulation and peat stability. I investigated freshwater and brackish marsh responses to elevated salinity, greater inundation, drought, and increased nutrient loading. Elevated salinity pulses in a brackish marsh increased CO2 release from the marsh but only during dry-down. Elevated salinity increased root mortality at both a freshwater and brackish marsh. Under continuously elevated salinity in mesocosms, net ecosystem productivity (NEP) was unaffected by elevated salinity in a freshwater marsh exposed to brackish conditions (0 à 8 ppt), but NEP significantly increased with P enrichment. Elevated salinity led to a higher turnover of live to dead roots, resulting in a ~2-cm loss in soil elevation within 1 year of exposure to elevated salinity. When exposing a brackish marsh to more saline conditions (10 à 20 ppt), NEP, aboveground biomass production, and root growth all significantly decreased with elevated salinity, shifting the marsh from a net C sink to a net C source to the atmosphere. Elevated salinity (10 à 20 ppt) did not increase soil elevation loss, which was already occurring under brackish conditions, but when coupled with a drought event, elevation loss doubled. My findings suggest these hypotheses for the drivers and mechanisms of peat collapse. When freshwater marshes are first exposed to elevated salinity, soil structure and integrity are negatively affected through loss of live roots within the soil profile, leaving the peat vulnerable to collapse even though aboveground productivity and NEP may be unaffected. Subsequent dry-down events where water falls below the soil surface further accelerate peat collapse. Although saltwater intrusion into freshwater wetlands may initially stimulate primary productivity through a P subsidy, the impact of elevated salinity on root and soil structure has a greater deleterious effect and may ultimately be the factors that lead to the collapse of these marshes.
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Catenazzi, Alessandro. "The importance of marine subsidies for terrestrial consumers in coastal Peru". FIU Digital Commons, 2006. http://digitalcommons.fiu.edu/etd/2086.

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The Peruvian coast is one the best examples of cross-ecosystem food web exchanges, in which resources from one of the richest marine ecosystems subsidize consumers in one of the driest deserts on Earth. Marine subsidies are resources that originate in the marine ecosystem, and that contribute to increase the density of consumers in the recipient ecosystem. I examined the effects of marine subsidies on animal populations in the Peruvian coastal desert. I combined several approaches to study the linkages between marine resources and terrestrial consumers, such as surveying the spatial distribution and estimating the relative abundance of terrestrial consumers, studying the diet of geckos and lizards through stomach content analyses, and examining the desert food web with carbon and nitrogen stable isotope analyses. I found that the distribution and diet of desert consumers were tightly coupled to the availability of marine subsidies. I revealed linkages along two pathways of nutrient fluxes: tidal action that washes ashore macroalgae and cadavers of marine organisms, and animal transport in places where pinnipeds and seabirds congregate for reproduction. In the first pathway, intertidal algivivores made marine resources available to terrestrial consumers by moving between the intertidal and supratidal zone. The relative contribution of terrestrial and algal carbon sources varied among terrestrial consumers, because scorpions assimilated a lower proportion of energy from macroalgae than did geckos and solifuges. In the second pathway, I found that pinniped colonies influenced the diet of desert consumers, and contributed to support large populations of lizards and geckos. By combining field observations, and stomach and stable isotope analyses, I constructed a simplified food web for a large sea lion colony, showing the number of trophic levels that originate from pinniped-derived nutrients. My study demonstrates the enormous importance of marine resources for the diet of desert consumers. The near absence of rainfall along the Peruvian coast promotes an extreme dependence of terrestrial consumers on marine resources, and causes permanent food web effects that are affected by temporal variability in marine productivity, rather then temporal patterns of desert plant growth.
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Zhang, Shuliang. "Coastal Circulations Driven by River Outflow". NSUWorks, 1997. http://nsuworks.nova.edu/occ_stuetd/45.

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Variable-density, 11/2- and 21/2- layer models are used to examine the behavior of plumes resulting from a fresher outflow of transport Mr and salinity Sr into a pre-existing oceanic layer of initial thickness H1 and salinity S1. It is found that the plumes exhibit a variety of features depending on conditions of the outflow, the situation of the ambient ocean, and external forcing. Perhaps the most interesting feature is that the plume can flow along the upstream (to the left of the river mouth, looking seaward in the northern hemisphere) coast by itself, and the research discussed here is focused on this topic. To illustrate how density variations associated with river plumes drive circulations, several solutions of geostrophic adjustment to an initially-imposed, y-independent density front are investigated. In these solutions, a frontally-trapped alongfront geostrophic current with the fresher water to its right (facing in the current direction) is always generated in response to the initial pressure gradient across the density front. This density-driven geostrophic current is dynamically similar to that resulting from initial disturbances in layer thickness h (equivalently, potential vorticity q = f / h) in constant-density models, with low salinity (density) in the variable-density model being analogous to the low q in the constant-density model. Solutions to the 11/2-layer model driven by river outflow are fundamentally different in low-R0 (Rossby number) and high-R0 regimes. In the low-R0 case, plumes advance along both upstream and downstream coasts. If Mr is less than a critical value Mcr (determined by ΔS = Sj - Sr and H1), plumes are coastally-trapped and all the river water-first flows upstream, with some of it, together with some salty water, reversing direction near the plume nose to flow along the offshore front, this return flow passes the river mouth and continues to flow along the downstream (to the right of the river mouth) coast. When Mr > Mcr, the plumes expand offshore indefinitely, and some river water must flow downstream directly. The evolution of the river plume for the low-R0 solutions can be understood in terms of two distinct flow patterns. One is a downstream coastal current ("coastal mode") directly forced by the river transport; it is dynamically similar to the response in a linear, constant-density, 11/2-layer model, and is responsible for the downstream motion. The other is an anticyclonic circulation ("gyre mode") due to geostrophic adjustment of the river plume; the coastal current of this circulation is responsible for the upstream motion. Analytical solutions illustrate that geostrophic adjustment along the offshore density front generates the return flow and that Kelvin waves originating from the plume nose cause the upstream flow. They also allow the plume width L and the upstream nose speed c of the nose to be determined as a function of model parameters. For the high-R0 solutions, river water flows directly offshore in a narrow jet. The angle in which the jet emerges from the river mouth is found to depend on several non-dimensional parameters. Inclusion of entrainment significantly inhibits the upstream plume propagation, and makes it difficult to distinguish low-R0 and high-R0solutions. In solutions to the 21/2-layer model, the upper-layer circulation is not significantly different from that in their 11/2-layer counterparts. A pre-existing downstream coastal current significantly weakens upstream plume propagation; indeed, the upstream advance can be completely stopped if the background current is strong enough. Ekman flow and alongshore currents induced by upwelling-favorable winds push the plume offshore and upstream, whereas downwelling-favorable winds result in a coastally trapped plume that is advected downstream.
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Nilsson, Emmelie. "Algal blooms and water quality in coastal waters of Öland : Possible effect on local tourism?" Thesis, University of Kalmar, School of Pure and Applied Natural Sciences, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hik:diva-1468.

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Utvecklingen av algblomningar i Östersjön har blivit mer diskuterat i media under senare år. Eftersom algblomningar ofta infaller samtidigt som turistsäsongen så har områden som är beroende av turistnäringen drabbats hårt. Under sommaren 2005 inträffade massiva giftiga algblomningar i Östersjön, och detta påverkade turismen på Öland negativt ur ekonomisk synpunkt. Mänsklig påverkan är ansedd vara huvudorsaken bakom den ökade förekomsten av algblomningar i Östersjön. Målet med detta projekt är att undersöka hur förekomsten av algblomningar påverkar turismen på Öland. Genom att ha samlat in vattenprover vid tre olika platser på Öland under sommaren 2007, har parametrar så som näringsstatus, temperatur, salthalt, phytoplankton sammansättning och klorofyll-a undersökts. Mängden nederbörd har observerats via data från SMHI. Detta har gjorts för att kunna studera eventuella samband mellan näringsstatus vid kusterna och möjlig avrinning från land. Två enkäter har skickats ut till samtliga camping ägare på Öland, i ett försök att se hur algblomningar har påverkat turismen under åren 2005, 2006 samt 2007. En enkät utdelades också under sommaren 2006, men denna var riktad till turisterna som besökte campingar på Öland. Ett av de slutliga målen var att undersöka hur förekomsten av algblomningar och miljöfaktorer, så som temperatur, salthalt, nederbörd och näringsämnen är sammankopplade. Provtagningsplatserna skiljde sig åt när det gällde till vilken grad de påverkats av algblomningar. Den nordvästra kusten, Köpingsvik, har nästan aldrig exponerats för algblomningar, medan den östra kusten, Gärdslösa, oftast har det. Den sydvästra kusten , Mörbylånga, har varit drabbad under vissa år. Detta material har sedan jämförts med material insamlat från 2006.  Resultatet från 2007 visar på högre koncentrationer av näringsämnen och klorofyll-a jämfört med data från 2006. Resultatet från 2007 visar på högre koncentrationer av näringsämnen och klorofyll-a jämfört med data från 2006. Turismen under 2006 och 2007 visade inte ha varit negativt påverkat av algblomningar. Turismen under 2005 visade sig däremot ha varit negativt påverkat av algblomningar. Cyanobakterier förekom i lågt antal under 2006 och 2007, men andra alggrupper blommade under våren och sommaren, speciellt en grupp av sötvatten dinoflagellat kallad Peridiniopsis polonicum. Denna art förekomi höga antal i både Gärdslösa och Mörbylånga, under slutet av juli och i augusti.

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Axenrot, Thomas. "Pelagic Fish Distribution and Dynamics in Coastal Areas in the Baltic Sea Proper". Doctoral thesis, Stockholm : Dept. of Systems Ecology, Univ, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-442.

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Takemura, Alison Francesca. "Niche adaptations of the vibrionaceae, from the coastal ocean to the laboratory". Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101791.

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Abstract (sommario):
Thesis: Ph. D. in Microbiology Graduate Program, Massachusetts Institute of Technology, Department of Biology, 2015.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 187-214).
Microorganisms play a significant role in biogeochemical cycling, thus their dynamics in the environment influence the biosphere. Yet how do features of the environment - such as abiotic conditions, resources, and predators - influence their activity and abundance, i.e. what constitutes their ecological niche? This study examines this question for members of a diverse marine heterotrophic family of bacteria, the Vibrionaceae. In chapter 2, I review the current knowledge of the environmental conditions and habitats in which Vibrionaceae populations are found. Through a meta-analysis of Vibrio abundance and bulk environmental variables, I show that temperature and salinity are strong correlates of Vibrio, but the patterns vary among species. By contrast, other commonly measured abiotic variables, like nitrogen and phosphate, are only weak correlates. Studies furthermore show that Vibrio engage in a diversity of lifestyles, from free-living to attached, in a wide range of habitats, though the patterns have largely not been characterized at a genetic or molecular scale. These observations motivate a finer-scale investigation of the microbial niche. In chapter 3, I explore how a single Vibrio strain is adapted to growth on different ecologically relevant resources, using nutrients extracted from habitat models - the copepod Apocyclops royi, and the brown alga Fucus vesiculosus - as well as the algal constituent, alginate. By selecting a transposon-mutant collection for growth on these resources, I find that Apocyclops is a replete resource, whereas Fucus is intermediate to Apocyclops and alginate in its anabolic requirements; that catabolic pathways have redundancy, which anabolic ones lack, that appears to mask fitness effects; and more generally, that these habitats contain complex resources that buffer fitness costs relative to growth on single carbohydrate resources. In appendix A, I determine how environmental phage isolates recognize the Vibrio strain: by its extracellular polysaccharide capsule. Losing the capsule enables the strain to resist infection from these bacteriophage; however, it suffers the tradeoff of becoming susceptible to others. By integrating environmental observations and genetic methods, this thesis provides an intimate view of the life of a marine microorganism.
by Alison Francesca Takemura.
Ph. D. in Microbiology Graduate Program
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Lauria, Mary Louise. "Physical constraints on phytoplankton in estuaries and shallow coastal waters". Thesis, University of Southampton, 1998. https://eprints.soton.ac.uk/42128/.

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Highly dynamic aquatic systems have often been reported to support actively growing populations of phytoplankton. The partially-mixed, macrotidal, temperate estuary Southampton Water is no exception, with reports of frequent temporal patterns of spring and summer maxima in algal biomass. During this study, the close coupling between the estuarine hydrology and the phytoplankton community was confirmed by the results from an intensive sampling strategy, spanning various temporal scales. Using high frequency data, collected from acoustic Doppler current profilers (ADCP) and CTDs, the physical mixing processes within the estuary were determined and combined with high resolution phytoplankton species data to assess the physical pressures on the microalgal community. Initial surveys were conducted to provide snapshots of the estuary during productive periods, followed by more intensive, longer term monitoring to observe population growth and succession. Through seasonal investigations, the aggregation of algal biomass (quantified by chlorophyll a concentration) at differing vertical heights in the water column was realised. On closer examination using microscopic identification, the different vertical profiles were shown to be due to phytoplankton succession from the spring to the summer months. Diatoms (Rhizosolenia delicatula) proliferated in the spring, where the population was localised in the near-bottom layers, whilst the summer bloom was dominated by autotrophic dinoflagellates (Prorocentrum micans and Peridifiium trochoideum), manifesting in a sub-surface chlorophyll a maximum. The vertical position of diatom species, both pelagic and benthic, suggested no dependence on incident irradiance, but seemed solely governed by current velocities, shear and wind mixing events. Other passive constituents of the water column, such as suspended particulate matter, were also closely coupled with boundary shear and followed regular patterns of re-suspension similar to those shown by the diatom community. In the summer, apparent active vertical migration was observed for several species of dinoflagellate. Whilst this apparent migration was closely linked to the incident irradiance, the extent and timing of migration was highly dependent on the tidal state and the water column stability. During one 25 hour Eulerian investigation, apparent positive vertical migration was observed in several dinoflagellate species, where the controlling factor was incident irradiance. Dinoflagellates were observed to descend during the dark periods when the water column was stable. However, the vertical distribution of the autotrophic ciliate Mesodinium rubrum suggested that migrations into the surface waters were linked with periods of water column stability and not triggered by surface irradiance. The unique tidal regime that governs the physical mixing processes in Southampton Water translates into periods of stability separated in time by intermittent turbulence. This periodic stability within the water column during reduced tidal forcings permitted the surface aggregation of dinoflagellates, which became homogeneously distributed when turbulence intensified during the ebb and flood currents. Diatoms, conversely, relied on vertical mixing to enter the surface layers of the water column, and aggregated in the lower layers during times of water column stability. Data from the. seasonal surveys suggested that diatoms and dinoflagellates were able to co-exist during the summer by utilising contrasting properties of tidal mixing to develop and reside within this partially mixed environment. The segregation of these two phytoplankton groups was not apparent from the chlorophyll concentrations alone, and was only made evident through the high resolution phytoplankton sampling through both time and space. The close coupling between the phytoplankton community and physical forcings were also investigated in the usually well-mixed southern North Sea. During a 12 hour Lagrangian survey, the stabilising effect of the Rhine region of freshwater influence (ROFI) was recognised and provided the temporary stability necessary for apparent dinoflagellate (Prorocentrum micans and Gonyaulax so) migration. Associated solely with this lower salinity plume was the diatom Rhizosolenia stvliformis, which was not detected during other times of the survey. Very small changes in total algal biomass were detected through the use of chlorophyll a determinations (chlorophyll a < 2 mg m"3). The intermittency of the mixing forces proved to be an important physical characteristic which defines the species and distribution of the phytoplankton community.
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Libri sul tema "Coastal biology"

1

Davidson, Avelyn. Beach biology. Danbury, CT: Children's Press, 2007.

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2

Association, British Naturalists', a cura di. British Naturalists' Association guide to coast and shore. Marlborough: Crowood, 1986.

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Barnes, Brian. Guide to coast and shore. Ramsbury, Marlborough, Wiltshire: Crowood Press, 1986.

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4

European Marine Biology Symposium (28th 23-28 September 1993 Institute of Marine Biology of Crete, Iraklio, Crete). Biology and ecology of shallow coastal waters: Proceedings of the 28th European Marine Biology Symposium. Fredensborg, Denmark: Olsen and Olsen, 1995.

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Summers, Kevin. National coastal condition report. Washington, DC: U.S. Environmental Protection Agency, Office of Research and Development/Office of Water, 2001.

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6

Hayes, Miles O. A coast for all seasons: A naturalist's guide to the coast of South Carolina. Columbia, S.C: Pandion Books, 2008.

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Jacqueline, Michel, a cura di. A coast for all seasons: A naturalist's guide to the coast of South Carolina. Columbia, S.C: Pandion Books, 2008.

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Stace, Glenys. What's on the beach?: A guide to coastal marine life. Auckland, N.Z: Viking, 1997.

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9

Jácome, Juan Carlos. Mochima: Encuentro entre mar y tierra. Caracas: J.C. Jácome, 1993.

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Jácome, Juan Carlos. Mochima: Encuentro entre mar y tierra. Caracas: J.C. Jácome, 1989.

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Capitoli di libri sul tema "Coastal biology"

1

Forrester, Graham E. "Coral Reef: Biology and History". In Coastal and Marine Environments, 95–99. Second edition. | Boca Raton: CRC Press, [2020] | Revised edition of: Encyclopedia of natural resources. [2014].: CRC Press, 2020. http://dx.doi.org/10.1201/9780429441004-9.

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Katsnelson, Boris, Valery Petnikov e James Lynch. "Coastal Oceanography, Geology, and Biology". In Fundamentals of Shallow Water Acoustics, 17–77. Boston, MA: Springer US, 2011. http://dx.doi.org/10.1007/978-1-4419-9777-7_2.

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Branoff, Benjamin. "Urban Mangrove Biology and Ecology: Emergent Patterns and Management Implications". In Coastal Research Library, 521–37. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73016-5_23.

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Watkinson, A. R., e A. J. Davy. "Population biology of salt marsh and sand dune annuals". In Ecology of coastal vegetation, 487–97. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5524-0_53.

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Muttin, Frédéric, Laurent Aprin, Thomas Milinkovitch, Christel Lefrançois, Hélène Thomas-Guyon, Stéphane LeFloch, Céline Duffa e Hervé Thébault. "Session 3: Biology Toxicology and Coastal Sensitivity Analysis". In Marine Coastal and Water Pollutions, 47–66. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781119003021.ch4.

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Paterson, D. M., e S. E. Hagerthey. "Microphytobenthos in Constrasting Coastal Ecosystems: Biology and Dynamics". In Ecological Studies, 105–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56557-1_6.

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Ievinsh, Gederts, Una Andersone-Ozola, Zaiga Landorfa-Svalbe, Andis Karlsons e Anita Osvalde. "Wild Plants from Coastal Habitats as a Potential Resource for Soil Remediation". In Soil Biology, 121–44. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44364-1_8.

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Ellis, D. V. "Case Histories of Coastal and Marine Mines". In Chemistry and Biology of Solid Waste, 73–100. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-72924-9_4.

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Means, D. Bruce. "Southeastern U.S. Coastal Plain Habitats of the Plethodontidae". In The Biology of Plethodontid Salamanders, 287–302. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4255-1_14.

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Kopiy, Vera. "Some Aspects of the Biology and the Present State of the Population of Protodorvillea kefersteini (Polychaeta: Dorvilleidae) in the Coastal Zone of the Crimea (The Black Sea)". In Coastal Research Library, 405–12. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57577-3_24.

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Atti di convegni sul tema "Coastal biology"

1

Kinlan, Brian P., Robert R. Warner, Robert M. Sinclair e Klaus M. Stiefel. "MULTISCALE PHENOMENA IN COASTAL MARINE ECOSYSTEMS". In MULTISCALE PHENOMENA IN BIOLOGY: Proceedings of the 2nd Conference on Mathematics and Biology. AIP, 2009. http://dx.doi.org/10.1063/1.3246411.

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Mikkola, Roosa, e Anette Bäck. "Small coastal lagoons under human pressure". In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/108033.

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Lutaenko, Konstantin, e Konstantin Lutaenko. "COASTAL MARINE BIODIVERSITY OF VIETNAM: CURRENT PROBLEM". In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b43159228ea.

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A brief overview of the coastal biodiversity of Vietnam based on surveys conducted by the A.V. Zhirmunsky Institute of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences for last 35 years. Main problems related to threats to biodiversity are discussed on the example of the intertidal communities, coral reefs, and molluscan diversity. Threats to marine biodiversity in Vietnam are summarized as follows: habitat degradation, fragmentation and loss (especially important are mangrove forest destruction, loss of coral reefs, change in landscape mosaic of wetland, estuary, sand and mud flats); global climate change including sea level rise, storm events, rainfall pattern change, warming of the coastal ocean; effects of fishing and other forms of overexploitation; pollution and marine litter; species introduction/invasions; physical alterations of coasts; tourism. Consolidated data of Vietnamese and Russian researchers on biodiversity and coastal zone management can be used in interpretations of ecosystem changes and for development of recommendations for local/national decision-makers.
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Lutaenko, Konstantin, e Konstantin Lutaenko. "COASTAL MARINE BIODIVERSITY OF VIETNAM: CURRENT PROBLEM". In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b9371a04467.54905418.

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A brief overview of the coastal biodiversity of Vietnam based on surveys conducted by the A.V. Zhirmunsky Institute of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences for last 35 years. Main problems related to threats to biodiversity are discussed on the example of the intertidal communities, coral reefs, and molluscan diversity. Threats to marine biodiversity in Vietnam are summarized as follows: habitat degradation, fragmentation and loss (especially important are mangrove forest destruction, loss of coral reefs, change in landscape mosaic of wetland, estuary, sand and mud flats); global climate change including sea level rise, storm events, rainfall pattern change, warming of the coastal ocean; effects of fishing and other forms of overexploitation; pollution and marine litter; species introduction/invasions; physical alterations of coasts; tourism. Consolidated data of Vietnamese and Russian researchers on biodiversity and coastal zone management can be used in interpretations of ecosystem changes and for development of recommendations for local/national decision-makers.
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5

Fungomeli, Maria, Fabrizio Frascaroli, Marcus Cianciaruso, Chiara Lelli e Alessandro Chiarucci. "Plant Species Diversity of Kenyan Coastal forests: Gaps of knowledge". In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/109186.

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Rooper, C. N., D. A. Armstrong e D. R. Gunderson. "Habitat use by juvenile Dungeness crabs in coastal nursery estuaries". In Crabs in Cold Water Regions: Biology, Management, and Economics. Alaska Sea Grant, University of Alaska Fairbanks, 2002. http://dx.doi.org/10.4027/ccwrbme.2002.44.

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"Antibiotic Resistant Bacteria from Sediment of Coastal Water of Pahang Malaysia". In International Conference on Agriculture, Biology and Environmental Sciences. International Academy Of Arts, Science & Technology, 2014. http://dx.doi.org/10.17758/iaast.a1214006.

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Parker, S. J., P. S. Rankin, J. M. Olson e R. W. Hannah. "Movement patterns of black rockfish (Sebastes melanops) in Oregon coastal waters". In Biology, Assessment, and Management of North Pacific Rockfishes. Alaska Sea Grant, University of Alaska Fairbanks, 2007. http://dx.doi.org/10.4027/bamnpr.2007.03.

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Eales, Jacqualyn, e Ruth Garside. "“Blue Communities”: supporting sustainable and resilient marine management for coastal communities in SE Asia". In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/108081.

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Sakai, Kohei. "Ecosystem Services in Coastal Zone for Sustainable Development: The Gulf of Finland and Saint Petersburg". In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/107276.

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Rapporti di organizzazioni sul tema "Coastal biology"

1

Saillant, Eric, Jason Lemus e James Franks. Culture of Lobotes surinamensis (Tripletail). Mississippi Department of Marine Resources, gennaio 2014. http://dx.doi.org/10.18785/ose.001.

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The Tripletail, Lobotes surinamensis, is a pelagic fish found in tropical and sub-tropical waters of all oceans. Tripletails are often associated with floating debris and make frequent incursions in bays and estuaries where they are targeted by recreational fishermen. In Mississippi waters the species is typically present during the late spring and summer season that also correspond to the period of sexual maturation and spawning (Brown-Peterson and Franks 2001). Tripletail is appreciated as a gamefish but is also prized for its flesh of superior quality. The fast growth rate of juveniles in captivity documented by Franks et al. (2001) and the excellent quality of Tripletail flesh both contribute to the potential of this species for marine aquaculture. In addition, the production of cultured juveniles would be precious to develop a better understanding of the biology, early life history and habitat use of Tripletail larvae and juveniles, a topic largely undocumented to date, through experimental releases and controlled studies. The culture of tripletail thus supports the Tidelands Trust Fund Program through improved conservation of natural resources, potential enhancement of fisheries productivity and potential development of a new economic activity on the Gulf coast producing tripletail via aquaculture. The Objective of this project was to initiate development of methods and techniques needed to spawn captive held tripletail broodfish and raise their offspring to evaluate their growth and development in captivity. In this report we will present the results of studies aiming to develop methods and protocols for captive spawning of tripletail and the first data obtained on the early development of tripletail larvae. A major issue that was encountered with tripletail broodstock development during the project lied in the difficulties associated with identifying the sex of adults caught in the wild and candidates for being incorporated in mating sets for spawning. This issue was addressed during the course of the project by examining the potential of a non-lethal method of hormonal sexing. The results of these preliminary investigations are presented in the third part of this report. All protocols used in the project were determined with the guidance of the Institutional Animal Care and Use Committee (IACUC) of the University of Southern Mississippi (USM IACUC protocol number 10100108).
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