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 8 of 8 for “"fishing impacts"”.
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Drivers of productivity in a subarctic seabird: Arctic Terns in Iceland
… of many seabird species and, although fishing pressures in Icelandic waters are relatively low, the impacts of current climatic and oceanic changes are predicted to be particularly severe at high latitudes, including Iceland. However, little is known about the current status and …
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Effects of Temperature stress on coral fluorescence and reflectance
… world, climate change, land-based pollution and fishing impacts are recognized as principal threats to coral reef ecosystems. Sea surface temperatures, in particular, are expected to change dramatically over the next decades and result in high coral mortality in some regions. Through controlled …
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Managing for long term sustainability of seafood production from bottom tendered wild capture fisheries
Bottom fishing is an important source of anthropogenic disturbance affecting seafloor habitats across the world’s continental shelves. Minimizing these disturbances is a key objective of ocean management; however, opportunities to meet this objective have been hampered by limited information on the …
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Diversity and abundance of sharks in no-take and fished sites in the marine protected area network of Raja Ampat, West Papua, Indonesia, using baited remote underwater video (BRUVs)
… fished and no-take zones, with more sharks in fishing-prohibited no-take zones. Over the depth gradient studied, there was an inverse trend for species richness and abundance, with the greatest shark abundance in shallow samples, whereas the greatest shark diversity was at depth. These results …
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Ecosystem impacts of intertidal invertebrate harvesting: from benthic habitats to bird predators.
… ecosystem functioning. This thesis investigates impacts of intertidal harvesting on benthic habitats and invertebrate communities as well as the potential impacts of harvesting on shorebird populations. Implications for management of inshore and intertidal fisheries are discussed. A meta-analysis …
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The ecophysiology of the cold-water coral Lophelia pertusa (Scleractinia)
… ecosystems have been damaged by deep-sea fishing and are threatened by climate change. Despite this, very little is known about the<br/>ecophysiology of L. pertusa and its likely response to environmental changes.<br/>The aims of this research were to investigate the physiology of L. …
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Effects of demersal trawling on marine infaunal, epifaunal and fish assemblages: studies in the southern Benguela and Oslofjord
This thesis investigates the impacts of the demersal trawl fishery on infaunal, epifaunal and fish assemblages in the southern Benguela upwelling system for the first time. In the absence of representative areas of similar habitat protected from trawling in the southern Benguela region, infaunal …
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Historical baselines and a century of change in the demersal fish assemblages on South Africa's Agulhas Bank
… lagged decades or even centuries behind modern fishing exploits. As a consequence, pre-disturbed reference points and descriptions of subsequent change are rarely available. A remarkably detailed set of historical trawl survey data from South Africa provided such a rare opportunity. …