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R/ZM-02
Temperature/salinity tolerance and salt regulation in the larvae of Dreissena polymorpha
Principal Investigator:
David A. WrightStart/End Year:
1993 - 1995Institution:
Chesapeake Biological Laboratory, University of Maryland Center for Environmental ScienceCo-Principal Investigator:
Victor S. Kennedy, Horn Point Laboratory, University of Maryland Center for Environmental ScienceTopic(s):
Description:
We will investigate temperature/salinity tolerance for larvae of the freshwater bivalve mollusc Dreissena polymorpha using a temperature/salinity matrix which encompasses the northern Chesapeake Bay during the spawning season. Results of survival and growth observations will be entered in a stepwise multiple regression equation which will be used to generate predictive response surfaces relating growth and survival to salinity/temperature combinations. Investigations will also be made into the contributions made by individual electrolytes to salinity stress in Dreissena larvae. A comprehensive study will also be made of the sodium regulatory mechanism in Dreissena larvae.
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Featured Fellow
Leone Yisrael is a cephalopod-loving scuba diver, cook, and loves to try new activities. She conducts genetic analysis and fieldwork at the Smithsonian Environmental Research Center through the Coastal Disease Ecology Lab.
Featured Research Project
Developing a habitat model for mysids, an important link in Chesapeake Bay food webs
Mysids are important mesozooplankton prey for many species of fish in Chesapeake Bay and are an important link in transferring energy from lower to upper trophic levels. Mysids also serve as biological vectors for benthic-pelagic coupling due to their diel vertical migration and omnivorous prey-switching behavior, which makes mysids important regulators of food web architecture. Despite their central role in coastal food webs, surprisingly little is known about mysid ecology and dynamics in Chesapeake Bay.
