Global ETD Search
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Showing 1 to 7 of 7 for “"European waters"”.
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Taxonomy and phylogeny of polychaetes
… Notophyllum foliosum, found in deep and shallow waters are two separate species, morphologically distinguished only by subtle details in their colouration, and the deep form is described as N. crypticum sp. n. A description is also provided for Axiokebuita, previously not found in European …
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Genetic factors affecting establishment during invasions : the introduction of the topmouth gudgeon (Pseudorasbora parva) and the rainbow trout (Oncorhynchus mykiss) in Europe
… is an Asian cyprinid that is found in most European countries as a result of accidental introductions. Rainbow trout (Oncorhynchus mykiss) has been introduced from the United States for aquaculture and angling, however, despite numerous introductions, it has only been able to establish in …
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Aspects of the biology of Mya arenaria and Ensis spp. (Mollusca; Bivalvia) in the Irish Sea and adjacent areas
… and health status, of two clam taxa in Irish waters, with particular reference to the Irish Sea area. Monthly samples of the soft shell clam, Mya arenaria, were collected from Bannow Bay, Co. Wexford, Ireland, for sixteen months, and of the razor clam, Ensis spp. from the Skerries region …
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Genetic, physiological and ecological diversity of the diatom genus <i>Leptocylindrus</i>
… minimus</i>, are reported as abundant in coastal waters worldwide and in the Gulf of Naples (GoN). This thesis aimed at a closer characterisation of <i>Leptocylindrus</i> species through different approaches, including the study of their morphology, molecular phylogeny, metagenomics and …
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Assessing the distribution and vulnerability of a seabird community at sea to inform conservation and management
… at the community level. The large territorial waters of both countries also provide significant prospective marine fossil fuels and renewable energy. Therefore, there is the potential for detrimental impacts to seabird populations where hotspots of seabird density overlap with marine energy …
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The water framework directive, paradigm shift or unrealized promises? A critical evaluation of its implementation from a boundary, economic and socio-political perspective
… a coherent approach to water policy at the European scale. It requires surface waters (rivers, lakes, wetlands and transitional and coastal waters) to attain good ecological and chemical status and establishes quantitative and chemical standards for groundwater. The WFD required a …