Results 131 to 140 of about 3,116 (159)

Siltation negatively affects settlement and gaping behaviour in eastern oysters

Marine Environmental Research, 2021
While high levels of siltation are known to be deleterious to eastern oysters (Crassostrea virginica), the collective effect of suspended and bedded sediment is understudied from the perspective of oyster farming and bed restoration. In this study, we used laboratory experiments to explore spat settlement rates on a wild bed proxy substrate (i.e ...
Luke A. Poirier, Jeff C. Clements, Michael R.S. Coffin, Tessa Craig, Jeff Davidson, Gilles Miron, John D.P. Davidson, Jonathan Hill, Luc A. Comeau   +8 more
openaire   +2 more sources

Cryopreservation of heart cells from the eastern oyster

In Vitro Cellular & Developmental Biology - Animal, 2001
Conditions were developed to cryopreserve cells from pronase-dissociated atria and ventricles of eastern oysters (Crassostrea virginica). The effect of three concentrations (5, 10, 15%) of the cryoprotectants (dimethyl sulfoxide, glycerol, and propylene glycol), three thawing temperatures (25, 45, 75 degrees C), and three cooling rates (slow, medium ...
T C, Cheng, J F, La Peyre, J T, Buchanan, T R, Tiersch, R K, Cooper   +4 more
openaire   +2 more sources

Hemocyte-Mediated Shell Mineralization in the Eastern Oyster

Science, 2004
The growth of molluscan shell crystals is usually thought to be initiated from solution by extracellular organic matrix. We report a class of granulocytic hemocytes that may be directly involved in shell crystal production for oysters. On the basis of scanning electron microscopy (SEM) and x-ray microanalysis, these granulocytes contain calcium ...
Andrew S, Mount, A P, Wheeler, Rajesh P, Paradkar, D, Snider   +3 more
openaire   +2 more sources

Persistence of MS-2 Bacteriophage Within Eastern Oysters

Food and Environmental Virology, 2017
Male-specific bacteriophages have been proposed as human enteric virus indicators for shellfish. In this study, Eastern oysters (Crassostrea virginica) were individually exposed to 5.6 × 1010 PFU of MS-2 for 48 h at 15 °C followed by collective maintenance in continuously UV-sterilized seawater for 0-6 weeks at either 7, 15, or 24 °C.
David H, Kingsley, Haiqiang, Chen, Gloria K, Meade   +2 more
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Intraspecific variation influences natural settlement of eastern oysters

Oecologia, 2013
As populations decline, their intraspecific diversity also diminishes. Population decline may be exacerbated if a decrease in intraspecific diversity also reduces important ecological functions that maintain population numbers. Oyster reefs are severely overharvested, declining by ~85 % worldwide.
Delbert L, Smee, R Deborah, Overath, Keith D, Johnson, James A, Sanchez   +3 more
openaire   +2 more sources

Epizootiology and Pathology of Juvenile Oyster Disease in the Eastern Oyster, Crassostrea virginica

Journal of Invertebrate Pathology, 2001
Juvenile Oyster Disease (JOD) causes mortalities of small cultured oysters, Crassostrea virginica. The present study was an intensive epizootiological and pathological investigation of JOD in eight sequentially deployed cohorts at sites on Long Island, New York. JOD symptoms and mortalities began in all groups at about the same time.
S E, Ford, F J, Borrero
openaire   +2 more sources

Complete Mitochondrial DNA Sequence of the Eastern Oyster Crassostrea virginica

Marine Biotechnology, 2005
The complete mitochondrial genome of the eastern oyster Crassostrea virginica (GenBank accession number AY905542) is 17,243 bp in length and contains 2 ribosomal genes, 12 protein-coding genes, and 23 transfer RNAs. The arrangement of protein-coding genes is identical to that of the congeneric Pacific oyster C.
Coren A, Milbury, Patrick M, Gaffney
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History of the Eastern Oyster

2002
The Eastern oyster, Crassostrea virginica, has held a long history as a commercially and ecologically important species in the Delaware Bay. Today, oyster production is severely inhibited by disease. Although oyster stocks have been significantly affected by disease, habitat loss, and in some cases, over-harvesting, the eastern oyster remains an ...
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Shell disease in eastern oysters, Crassostrea virginica, reared in France

Journal of Invertebrate Pathology, 2002
Progeny of eastern oyster, Crassostrea virginica, introduced into France in 1992, were reared in IFREMER facilities to test their growth performances. During the summer of 1993, sporadic mass mortalities (80-90%) occurred among C. virginica spat reared in the IFREMER laboratories in La Tremblade (Charente Maritime, France) and Bouin (Vendée, France ...
T, Renault, B, Chollet, N, Cochennec, A, Gerard   +3 more
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Localization of the bacterial agent of juvenile oyster disease (Roseovarius crassostreae) within affected eastern oysters (Crassostrea virginica)

Journal of Invertebrate Pathology, 2008
The bacterium Roseovarius crassostreae causes seasonal mortalities among commercially produced eastern oysters (Crassostrea virginica) grown in the Northeastern United States. Phylogenetically, the species belongs to a major lineage of marine bacteria (the Roseobacter clade), within which Roseovarius crassostreae is the only known pathogen to be ...
Cynthia L, Boardman, Aaron P, Maloy, Katherine J, Boettcher   +2 more
openaire   +2 more sources