The combined effects of temperature and exogenous bacterial sources on mortality in the Eastern oyster (<i>Crassostrea virginica</i>) under anoxia.

ABSTRACT: In aquatic environments, low dissolved oxygen concentrations can result in depressed bivalve defense systems while promoting anaerobic bacterial growth, ultimately leading to increased bivalve mortality rates. Although the relationship between low oxygen availability and bivalve mortality has been previously examined, the mechanisms of mortality remain not well understood, limiting our ability to predict mass mortality events. In this study, the effect of anoxia (< 0.1 mgO₂L^-1) on adult oyster (Crassostrea virginica) mortality rates was explored experimentally using a factorial design, which included the effect of temperature (20°C vs. 28°C) combined with the presence/absence of an exogenous bacterial source (anoxic sediment vs. sterile sediment). Additionally,

SUBMITTER: Steeves L 

PROVIDER: S-EPMC11913911 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature