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 6 of 6 for “"Macrobenthic community"”.
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Macrobenthic community and ecotoxicological status of the Nhlabane Estuary
… input into the system and its effect on the macrobenthic community, as well as the potential trace metal contamination of the estuary water, sediment and biota due to mining activities. The study aimed to describe the macrobenthic community of the Nhlabane Estuary during the post-drought …
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Organism -sediment interactions: The role of seabed dynamics in structuring the mesohaline York River macrobenthic community
… seabed characteristics on estuarine benthic community structure and function in the mesohaline York River, a tributary of Chesapeake Bay, USA. I used a variety of approaches to characterize the seabed, including sediment grain size, sediment water content, maximum depth of 7Be, depth of the …
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The macrobenthos of a new reservoir, Lake Anna, Louisa County, Virginia
… impoundment, 1972-1975. Prior to this, extensive macrobenthic collections had been made in the river destined for impoundment, the North Anna River. The biota of this river had been seriously affected by acid mine drainage for over 100 years. Macrobenthos consists of the organisms living on the …
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The Use of Computed Tomography to Measure Biogenic Structures in Recently Hypoxic and Normoxic Sediments on the Louisiana Continental Shelf
… macrofauna abundance were known. Because benthic community composition and density determine what types of biogenic structures are present and at what rate bioturbation occurs in sediments, the quantification of mixing rates and various physical parameters of biogenic structures reveals …
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The influence of a petrochemical discharge on the bioturbation and erosion potential of an intertidal estuarine mudflat (Humber estuary, UK)
… techniques were used to determine the effects of community change on bioturbation potential. In addition, a laboratory flume was constructed to measure sediment erosion potential with field measurements being taken using a Cohesive Strength Meter (CSM). The physico-chemical properties of the …
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Ecosystem impacts of intertidal invertebrate harvesting: from benthic habitats to bird predators.
… of this gear type elicits significant changes to macrobenthic community structure and a loss of fine sediments, while reductions in abundance of the target species of up to 95% occur in some areas throughout the open season. Although population dynamics of R. philippinarum vary across a gradient …