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Full-Text Articles in Aquaculture and Fisheries
South Atlantic Stream Fish Assemblages: Multi-Scale Structuring Factors, Trait Associations And Channelization, And Responses To Dam Removal, Cathy Marion
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South Atlantic coastal plain wadeable streams are unique and understudied freshwater environments that provide crucial habitats for a wide range of aquatic taxa. In Chapter 1, we investigated patterns in fish assemblages across South Carolina's coastal plain, and developed statistical models to identify the dominant multi-scale abiotic environmental factors that influence assemblage structure. Our analyses indicated the presence of four predominant fish assemblages that commonly occur in the coastal plain, which we termed the: 1) fluvial, 2) eastern mudminnow, 3) centrarchid, and 4) non-fluvial assemblages. Natural geographic gradients and instream habitat parameters associated with velocity, channel form, stream size, and …
The Effects Of Drought On The Abundance Of The Blue Crab, Callinectes Sapidus, In The Ace Basin Nerr In South Carolina, Kirk Parmenter
The Effects Of Drought On The Abundance Of The Blue Crab, Callinectes Sapidus, In The Ace Basin Nerr In South Carolina, Kirk Parmenter
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Blue crabs make up one of the most important commercial fisheries in the U.S. but there has been some concern over the health of blue crab populations due to large declines in landings seen in recent years. There is a significant positive correlation between river discharge and commercial landings suggesting that drought may be to blame for the recent decline in crab numbers. The work I completed for my dissertation tested multiple hypotheses examining the link between decreasing freshwater discharge, the subsequent rise in salinity, and the abundance of blue crabs in the ACE Basin National Estuarine Research Reserve.
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