Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 56 for “"Marine Ecology"”.
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Seasonal Variation in Benthic Community Structure in Mobile Bay, Alabama.
The community concept in benthic marine ecology has long been a subject of intense interest. Peterson (1918) was one of the first investigators to recognize and attempt to characterize benthic com- munities in his extensive surveys of the Skagerrak and Baltic Sea. According to Thorson (1957), …
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A seascape genetics approach to exploring the phylogeographic response of marine fishes to late Quaternary climate change
… these approaches have only begun to be used in marine ecosystems. This dissertation fills an emerging niche in marine ecology by taking an interdisciplinary seascape genetics approach to investigating the interplay of climate, dispersal and adaptation as shallow-water marine fishes respond to …
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Predictability studies of coastal marine ecosystem behavior
… Starting from the consideration that marine ecosystem behavior appears unpredictable, our scientific interest is to understand what are the intrinsic reasons of this apparent unpredictability. Without involving into strictly philosophical grounds, the unpredictability of marine …
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Poríferos da Baía de Sepetiba (Rio de Janeiro-Brasil)
… of Brazilian fauna of Porifera as well as, to Marine Ecology works, so necessary in our days, in that nonsensical world we live.
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A unified population model of Calanus finmarchicus and C. helgolandicus in the North Atlantic
A fundamental challenge of marine ecology is to understand climate change induced range shifts. At the level of individual ecosystems, the impacts of these range shifts will result from the complex changes in community composition. This forces us to consider not simply individual species, but the …
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Design for education and environment: Jacksonville Estuarine Research Center
… destination has promoted a National interest in marine life. In the past twenty years cities have built aquariums that draw millions annually to various locations, justifying financial maintenance of delicate underwater life systems and increasing local tourism. Some successful aquariums such as …
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Hydrogeo-Eco-Systems in Aquaba/Jordan - Coasts and Region
… to pollution. This certainly threatens the marine ecology which forms the sink where the in-excess flow ends. The constructed digital background was exported into GIS to sub-zone the study area in terms of the aquifer’s vulnerability to pollution risks using DRASTIC index. However, it was …
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Carbon cycling in the Caribbean reef-building coral Orbicella: quantitative evidence for enzymatic control of skeletal density banding and coral-endosymbiont physiological plasticity during seasonal environmental change
… coral reefs, serve as a cornerstone of marine ecology, and may help mitigate the accumulation of greenhouse gases by building a skeleton (composed of a calcium carbonate mineral called aragonite) that functions as a carbon sink, the mechanisms of coral health, growth, and survival have …
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Trait-based modeling of larval dispersal in the Gulf of Maine
… governs the spatial and temporal dynamics of marine ecosystems. For many marine species, population connectivity is driven by dispersal during a planktonic larval phase. The ability to obtain accurate, affordable, and meaningful estimates of larval dispersal patterns is therefore a key aspect …
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Automating Video Analysis for Marine and Behavioural Research: Deep Learning Solutions to Analytical Bottlenecks
… advances have dramatically increased marine data collection capacity, shifting the primary challenge in ocean science from data acquisition to data processing. An 'analytical bottleneck' now limits the extraction of ecological insight from information-rich datasets such as video …
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Trait-based modeling of larval dispersal in the Gulf of Maine
… governs the spatial and temporal dynamics of marine ecosystems. For many marine species, population connectivity is driven by dispersal during a planktonic larval phase. The ability to obtain accurate, affordable, and meaningful estimates of larval dispersal patterns is therefore a key aspect …
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Temporal interactions with flamingo foraging plasticity: ecological effects on basal resources and benthic heterogeneity
… communities has been a focal area of research in marine ecology. Conversely, studies focusing on foraging plasticity, particularly by shorebirds, and consequences for benthic community structure, heterogeneity and ecosystem functioning have been limited in marine soft-sediments. Temporal …
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Ecological evaluation of coral reef resources at Kahaluʻu Bay, Hawaiʻi
… insights into western science, in particular marine ecology. Research findings indicated that the spatial patterns of corals were not regulated by a sole factor. Instead, a combination of factors, which included depth and salinity, significantly explain the variance in coral community …
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Assessing Movement of Fish Through Spectral Analysis of Otolith Life History Scans
… is fundamental for testing hypotheses in marine ecology that deal with ingress, egress, and migration of fish. Timing and patterns of movement have been estimated using life-history scans of the chemical signatures encoded in fish otoliths (ear stones). I provide a quantitative approach to …
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Powers to conserve or to destroy : a study of coastal factors in marine food resource conservation.
… and to utilize more fish. Since World War II, marine catches have been increasing as bigger, better equipped boats have been taken further out to sea. Some fishery stocks have been depleted as a result of intensive fishing. Interest in more productive fishing has been accompanied by interest in …
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Some nonlinear problems in plankton ecology
In marine ecology, the variability of the physical environment is often considered a main determinant of biological pattern. A common approach to identifying key environmental forcings is to match scales of variability: fluctuations of a biological variable at a particular frequency are attributed …
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Larval ecology and synchronous reproduction of two crustacean species : Semibalanus balanoides in New England, USA and Gecarcinus quadratus in Veraguas, Panama
… terrestrial crab, Gecarcinus quadratus. Larval ecology of these two species was also studied to determine potential sources of larval mortality and recruitment success. High-frequency observations revealed that early-stage larval abundance of S. balanoides was related to storms, and possibly …
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Dynamics of marine zooplankton : social behavior ecological interactions, and physically-induced variability
Marine ecosystems reflect the physical structure of their environment and the biological processes they carry out. This leads to spatial heterogeneity and temporal variability, some of which is imposed externally and some of which emerges from the ecological mechanisms themselves. The main focus of …
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Pātangaroa: Co-developing management strategies for a starfish outbreak in Ōhiwa Harbour
The management of marine environments often prioritises scientific information to address complex marine social-ecological issues. However, there is a wealth of learning to be gained from Indigenous people who have generated place-based intergenerational understandings and cultural ethics and …
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A molecular approach to questions in the phylogeny of planktonic sarcodines
… planktonic and occur strictly in oligotrophic marine environments. Although these protists have been the topic of research since Ernst Haeckel's systematic investigations of samples from the H. M. S. Challenger Expedition, many aspects of their phylogeny and systematics remain poorly resolved. …
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