Marking the Shells of Pediveliger Eastern Oysters Crassostrea Virginica, with a Calcein Fluorochrome Dye

2022 ◽  
Vol 40 (3) ◽  
Author(s):  
Jason E. Spires ◽  
Christopher F. Dungan ◽  
Elizabeth W. North
Keyword(s):  
Crassostrea Virginica ◽  
Eastern Oysters

scholarly journals Oyster hatchery breakthrough of two HABs and potential effects on larval eastern oysters (Crassostrea virginica)

Harmful Algae ◽  
2021 ◽  
Vol 101 ◽  
pp. 101965
Author(s):  
Sarah K.D. Pease ◽  
Kimberly S. Reece ◽  
Jeffrey O'Brien ◽  
Patrice L.M. Hobbs ◽  
Juliette L. Smith
Keyword(s):  
Crassostrea Virginica ◽  
Eastern Oysters

Biological Assessment of Eastern Oysters (Crassostrea virginica) Inhabiting Reef, Mangrove, Seawall, and Restoration Substrates

2013 ◽  
Vol 37 (4) ◽  
pp. 962-972 ◽  
Author(s):  
Michael Drexler ◽  
Melanie L. Parker ◽  
Stephen P. Geiger ◽  
William S. Arnold ◽  
Pamela Hallock
Keyword(s):  
Crassostrea Virginica ◽  
Biological Assessment ◽  
Eastern Oysters

Cadmium affects metabolic responses to prolonged anoxia and reoxygenation in eastern oysters (Crassostrea virginica)

2009 ◽  
Vol 297 (5) ◽  
pp. R1262-R1272 ◽  
Author(s):  
I. O. Kurochkin ◽  
A. V. Ivanina ◽  
S. Eilers ◽  
C. A. Downs ◽  
L. A. May ◽  
...  
Keyword(s):  
Crassostrea Virginica ◽  
Oxygen Deficiency ◽  
Respiratory Control ◽  
Maximum Activity ◽  
Dna Lesions ◽  
Metabolic Responses ◽  
Coastal Zones ◽  
Mitochondrial Uncoupling ◽  
Eastern Oysters ◽  
Stimulation Of

Benthic marine organisms such as mollusks are often exposed to periodic oxygen deficiency (due to the tidal exposure and/or seasonal expansion of the oxygen-deficient dead zones) and pollution by metals [e.g., cadmium, (Cd)]. These stressors can strongly affect mollusks' survival; however, physiological mechanisms of their combined effects are not fully understood. We studied the effects of Cd exposure on metabolic responses to prolonged anoxia and subsequent recovery in anoxia-tolerant intertidal mollusks Crassostrea virginica (eastern oysters). Anoxia led to an onset of anaerobiosis indicated by accumulation of l-alanine, acetate, and succinate. Prolonged anoxia (for 6 days) caused a decline in the maximum activity of electron transport chain and ADP-stimulated ( state 3) oxygen uptake by mitochondria (MO2), but no change in the resting ( state 4) MO2 of oyster mitochondria, along with a slight but significant reduction of mitochondrial respiratory control ratio. During reoxygenation, there was a significant overshoot of mitochondrial MO2 (by up to 70% above the normoxic steady-state values) in control oysters. Mild mitochondrial uncoupling during prolonged shutdown in anoxic tissues and a subsequent strong stimulation of mitochondrial flux during recovery may help to rapidly restore redox status and protect against elevated reactive oxygen species formation in oysters. Exposure to Cd inhibits anaerobic metabolism, abolishes reoxygenation-induced stimulation of mitochondrial MO2, and leads to oxidative stress (indicated by accumulation of DNA lesions) and a loss of mitochondrial capacity during postanoxic recovery. This may result in increased sensitivity to intermittent hypoxia and anoxia in Cd-exposed mollusks and will have implications for their survival in polluted estuaries and coastal zones.

Removal of Black Drum on Louisiana Reefs to Increase Survival of Eastern Oysters Crassostrea virginica

2008 ◽  
Vol 28 (6) ◽  
pp. 1802-1811 ◽  
Author(s):  
Gerald J. George ◽  
Kenneth M. Brown ◽  
Gary W. Peterson ◽  
Bruce A. Thompson
Keyword(s):  
Crassostrea Virginica ◽  
Eastern Oysters

Shell disease in eastern oysters, Crassostrea virginica, reared in France

2002 ◽  
Vol 79 (1) ◽  
pp. 1-6 ◽  
Author(s):  
T. Renault ◽  
B. Chollet ◽  
N. Cochennec ◽  
A. Gerard
Keyword(s):  
Crassostrea Virginica ◽  
Shell Disease ◽  
Eastern Oysters
Sign in / Sign up

Export Citation Format

Share Document