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Full-Text Articles in Life Sciences
Current And Future Remote Sensing Of Harmful Algal Blooms In The Chesapeake Bay To Support The Shellfish Industry, Jl Wolny, Mc Tomlinson, S Schollaert Uz, Ta Egerton, Jr Mckay, A Meredith, Ks Reece, Gp Scott, Rp Stumpf
Current And Future Remote Sensing Of Harmful Algal Blooms In The Chesapeake Bay To Support The Shellfish Industry, Jl Wolny, Mc Tomlinson, S Schollaert Uz, Ta Egerton, Jr Mckay, A Meredith, Ks Reece, Gp Scott, Rp Stumpf
VIMS Articles
Harmful algal bloom (HAB) species in the Chesapeake Bay can negatively impact fish, shellfish, and human health via the production of toxins and the degradation of water quality. Due to the deleterious effects of HAB species on economically and environmentally important resources, such as oyster reef systems, Bay area resource managers are seeking ways to monitor HABs and water quality at large spatial and fine temporal scales. The use of satellite ocean color imagery has proven to be a beneficial tool for resource management in other locations around the world where high-biomass, nearly monospecific HABs occur. However, remotely monitoring HABs …
Acute And Long-Term Manganese Exposure And Subsequent Accumulation In Relation To Idiopathic Blindness In The American Lobster, Homarus Americanus, Addison T. Ochs, Jeffrey D. Shields, Gary W. Rice, Michael A. Unger
Acute And Long-Term Manganese Exposure And Subsequent Accumulation In Relation To Idiopathic Blindness In The American Lobster, Homarus Americanus, Addison T. Ochs, Jeffrey D. Shields, Gary W. Rice, Michael A. Unger
VIMS Articles
Manganese (Mn) is a hypoxic reactive metal commonly found in marine sediments. Under hypoxic conditions the metal becomes fully reduced to Mn2+ and is biologically available to the benthic community for uptake. Mn is also a potent neurotoxin and it may play a role in the etiology of idiopathic blindness that has been observed in American lobsters. An acute exposure study was designed to expose American lobster, Homarus americanus, to 0, 20, 80, 150, and 300 mg L−1 (ppm) for 96 hs to explore disparities in Mn accumulation among several tissues: optic nerve, brain, hepatopancreas, muscle, hemolymph, …
Population Structure Of The Blue Crab Callinectes Sapidus In The Maryland Coastal Bays, Kristen A. Lycett, Jeffrey D. Shields, J. Sook Chung, Joseph S. Pitula
Population Structure Of The Blue Crab Callinectes Sapidus In The Maryland Coastal Bays, Kristen A. Lycett, Jeffrey D. Shields, J. Sook Chung, Joseph S. Pitula
VIMS Articles
The population structure of the blue crab Callinectes sapidus was examined in the Maryland Coastal Bays (MCB) from 2014 to 2016. Crabs were sampled from April to December of each year. Size–frequency distributions showed a strong seasonal cycle, with small crabs being abundant in April, increasing in size through September, with adult crabs observed in the highest proportions from August through October of each year. A subsample of crabs was assayed for hemolymph ecdysone concentrations to examine molting patterns in field-collected blue crabs. Molting was observed throughout the sampling season, peaking in April for immature crabs, with lows in all …
Quantifying The Behavioral And Economic Effects Of Regulatory Change In A Recreational Cobia Fishery, Andrew M. Scheld, William M. Goldsmith, Shelby White, Hamish J. Small, Susanna Musick
Quantifying The Behavioral And Economic Effects Of Regulatory Change In A Recreational Cobia Fishery, Andrew M. Scheld, William M. Goldsmith, Shelby White, Hamish J. Small, Susanna Musick
VIMS Articles
Fisheries economists typically assume recreational anglers make decisions that maximize individual angler utility, which may depend on fishery and regulatory conditions. Under this framework, changes in regulations can lead to target species substitution by anglers in response to shifts in expectations of trip utility. A stated preference survey was developed and distributed to recreational cobia (Rachycentron canadum) anglers in Virginia to explore the effects of regulatory change on angler decision-making, species targeting, and resulting economic outcomes. The survey included a series of hypothetical choice scenarios, where respondents were asked to select their most preferred alternative after being presented with different …