scholarly journals Butyltins in Crassostrea virginica from Nine Reefs in Mississippi Sound

1997 ◽  
Vol 9 ◽  
Author(s):  
Thomas F. Lytle ◽  
Julia S. Lytle
Keyword(s):  
Crassostrea Virginica ◽  
Mississippi Sound

Heavy metals in the eastern oyster,Crassostrea virginica, of the Mississippi sound

1990 ◽  
Vol 44 (1) ◽  
pp. 142-148 ◽  
Author(s):  
Thomas F. Lytle ◽  
Julia S. Lytle
Keyword(s):  
Heavy Metals ◽  
Crassostrea Virginica ◽  
Eastern Oyster ◽  
Mississippi Sound

Dying, Decaying, and Dissolving into Irrelevance: First Direct in-the-Field Estimate of Crassostrea virginica Shell Loss—a Case History from Mississippi Sound

2020 ◽  
Vol 39 (2) ◽  
pp. 245
Author(s):  
Sara M. Pace ◽  
Leanne M. Poussard ◽  
Eric N. Powell ◽  
Kathryn A. Ashton-Alcox ◽  
Kelsey M. Kuykendall ◽  
...  
Keyword(s):  
Crassostrea Virginica ◽  
Case History ◽  
Mississippi Sound ◽  
Field Estimate

Mass Mortality of the Eastern Oyster Crassostrea virginica in the Western Mississippi Sound Following Unprecedented Mississippi River Flooding in 2019

2020 ◽  
Vol 39 (2) ◽  
pp. 235
Author(s):  
James H. Gledhill ◽  
Ann Fairly Barnett ◽  
Marc Slattery ◽  
Kristine L. Willett ◽  
Gregory L. Easson ◽  
...  
Keyword(s):  
Crassostrea Virginica ◽  
Mississippi River ◽  
Eastern Oyster ◽  
Mass Mortality ◽  
River Flooding ◽  
Mississippi Sound

Spherulitic crystal growth in the prodissoconch larval of Crassostrea virginica

1983 ◽  
Vol 41 ◽  
pp. 518-519
Author(s):  
George G. Cocks ◽  
Louis Leibovitz ◽  
DoSuk D. Lee
Keyword(s):  
Crystal Structure ◽  
Crassostrea Virginica ◽  
Crystal Orientation ◽  
Developmental Changes ◽  
Gastrula Stage ◽  
Orthorhombic Crystal ◽  
Orthorhombic Crystal Structure ◽  
Stages Of Growth ◽  
Early Stages ◽  
Initial Deposition

Our understanding of the structure and the formation of inorganic minerals in the bivalve shells has been considerably advanced by the use of electron microscope. However, very little is known about the ultrastructure of valves in the larval stage of the oysters. The present study examines the developmental changes which occur between the time of conception to the early stages of Dissoconch in the Crassostrea virginica(Gmelin), focusing on the initial deposition of inorganic crystals by the oysters.The spawning was induced by elevating the temperature of the seawater where the adult oysters were conditioned. The eggs and sperm were collected separately, then immediately mixed for the fertilizations to occur. Fertilized animals were kept in the incubator where various stages of development were stopped and observed. The detailed analysis of the early stages of growth showed that CaCO3 crystals(aragonite), with orthorhombic crystal structure, are deposited as early as gastrula stage(Figuresla-b). The next stage in development, the prodissoconch, revealed that the crystal orientation is in the form of spherulites.

Effects of resuspension of eastern oyster Crassostrea virginica biodeposits on phytoplankton community structure

2020 ◽  
Vol 640 ◽  
pp. 79-105
Author(s):  
ET Porter ◽  
E Robins ◽  
S Davis ◽  
R Lacouture ◽  
JC Cornwell
Keyword(s):  
Water Quality ◽  
Community Structure ◽  
Crassostrea Virginica ◽  
Skeletonema Costatum ◽  
Eastern Oyster ◽  
Energy Dissipation Rate ◽  
Negative Effects ◽  
Cell Densities ◽  
Sediment Bottom ◽  
Nitrite Nitrate

Anthropogenic disturbances in the Chesapeake Bay (USA) have depleted eastern oyster Crassostrea virginica abundance and altered the estuary’s environment and water quality. Efforts to rehabilitate oyster populations are underway; however, the effect of oyster biodeposits on water quality and plankton community structure are not clear. In July 2017, we used 6 shear turbulence resuspension mesocosms (STURMs) to determine differences in plankton composition with and without the daily addition of oyster biodeposits to a muddy sediment bottom. STURM systems had a volume-weighted root mean square turbulent velocity of 1.08 cm s-1, energy dissipation rate of ~0.08 cm2 s-3, and bottom shear stress of ~0.36-0.51 Pa during mixing-on periods during 4 wk of tidal resuspension. Phytoplankton increased their chlorophyll a content in their cells in response to low light in tanks with biodeposits. The diatom Skeletonema costatum bloomed and had significantly longer chains in tanks without biodeposits. These tanks also had significantly lower concentrations of total suspended solids, zooplankton carbon, and nitrite +nitrate, and higher phytoplankton carbon concentrations. Results suggest that the absence of biodeposit resuspension initiates nitrogen uptake for diatom reproduction, increasing the cell densities of S. costatum. The low abundance of the zooplankton population in non-biodeposit tanks suggests an inability of zooplankton to graze on S. costatum and negative effects of S. costatum on zooplankton. A high abundance of the copepod Acartia tonsa in biodeposit tanks may have reduced S. costatum chain length. Oyster biodeposit addition and resuspension efficiently transferred phytoplankton carbon to zooplankton carbon, thus supporting the food web in the estuary.

Seasonal Abundance and Site Fidelity of Bottlenose Dolphins (Tursiops truncatus) in Mississippi Sound

2004 ◽  
Vol 30 (2) ◽  
pp. 299-310 ◽  
Author(s):  
Carrie W. Hubard ◽  
Kathy Maze-Foley ◽  
Keith D. Mullin ◽  
William W. Schroeder
Keyword(s):  
Tursiops Truncatus ◽  
Site Fidelity ◽  
Bottlenose Dolphins ◽  
Seasonal Abundance ◽  
Mississippi Sound

Novel Shell Stock–Recruitment Models for Crassostrea virginica as a Function of Regional Shell Effective Surface Area, A Missing Link for Sustainable Management

2020 ◽  
Vol 39 (3) ◽  
Author(s):  
Kathleen M. Hemeon ◽  
Kathy A. Ashton-Alcox ◽  
Eric N. Powell ◽  
Sara M. Pace ◽  
Leanne M. Poussard ◽  
...  
Keyword(s):  
Surface Area ◽  
Crassostrea Virginica ◽  
Sustainable Management ◽  
Effective Surface Area ◽  
Effective Surface ◽  
Missing Link ◽  
Stock Recruitment

Neogene and Quaternary geology of a stratigraphic test hole on Horn Island, Mississippi Sound

1996 ◽  
Author(s):  
Gregory S. Gohn ◽  
G. Lynn Brewster-Wingard ◽  
Thomas M. Cronin ◽  
Lucy E. Edwards ◽  
Thomas G. Gibson ◽  
...  
Keyword(s):  
Quaternary Geology ◽  
Mississippi Sound ◽  
Test Hole
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