The Society for Integrative and Comparative Biology
Long Term Monitoring of Grass Shrimp Palaemonetes spp. Population Metrics at Sites with Agricultural Runoff Influences1,,2
1 Cooperative Oxford Laboratory, Center for Coastal Environmental Health and Biomolecular Research, National Oceanic and Atmospheric Administration, National Ocean Service, 904 South Morris Street, Oxford, Maryland 21654
2 Center for Coastal Environmental Health and Biomolecular Research, National Oceanic and Atmospheric Administration, National Ocean Service, 219 Fort Johnson Road, Charleston, South Carolina 29412
Rising concern over pesticide usage near estuarine systems and evidence of physical and physiological impacts on estuarine organisms have strengthened the need to better identify the ecological effects of nonpoint source runoff. Grass shrimp, Palaemonetes spp., are ecologically important and abundant marsh inhabitants that may be impacted by anthropogenic contamination. Populations of grass shrimp were sampled monthly, over a period of ten years, at four sites in South Carolina with varying upland land use characteristics. Spatial and temporal trends in grass shrimp densities were noted over time and between sites. Agricultural and golf course land usage corresponded with decreased grass shrimp population levels, overall shrimp size, and percentage of gravid females. Conservation methods, such as the use of best management practices (BMPs) and integrated pesticide management (IPM) at agricultural fields, corresponded with increased grass shrimp population density.
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N. J. Brown-Peterson, C. S. Manning, V. Patel, N. D. Denslow, and M. Brouwer Effects of Cyclic Hypoxia on Gene Expression and Reproduction in a Grass Shrimp, Palaemonetes pugio Biol. Bull., February 1, 2008; 214(1): 6 - 16. [Abstract] [Full Text] [PDF] |
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