Oyster (Crassostrea virginica [Gmelin, 1791]) Mortality at Prolonged Exposures to High Temperature and Low Salinity

ABSTRACT Mortality of two size classes (<35 and >35 mm) of eastern oysters Crassostrea virginica when exposed to combinations of low salinity (1, 2, 3, and 4) for extended periods (up to 30 days) at summer water temperatures typical of the Virginia Chesapeake Bay subestuaries was examined. A critical salinity-temperature combination of less than two at greater than 28°C for more than 1 wk exposure for oyster mortality is suggested. A review of limited historical salinity-temperature tolerance data suggest selection of local populations of oysters having differing salinity tolerances. Such selection may prove critical to persistence of low-salinity populations in the Chesapeake Bay subestuaries with projected climate change.

• Publication year

  2017

• Venue

  Journal of Shellfish Research

• Publication date

  2017-09-01

• Fields of study

  Biology, Environmental Science

• Identifiers
  DOI 10.2983/035.036.0205
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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