R/DO-20

Trophic dynamics in Chesapeake Bay: Ecological and biochemical approaches to the study of flows of carbon from phytoplankton to bacterioplankton

Principal Investigator:

Hugh W. Ducklow

Start/End Year:

1991 - 1993

Institution:

Horn Point Laboratory, University of Maryland Center for Environmental Science

Co-Principal Investigator:

Madilyn Fletcher, Center of Marine Biotechnology, University of Maryland Biotechnology Institute

Description:

The overall objective is to understand the role of bacteria in decomposition of phytoplankton biomass and the importance of this process in the trophic dynamics and movement of toxic substances through Chesapeake Bay. Specific objectives are to analyze biochemically and microbiologically suspended phytodetritus, estimate bacterial production derived from decomposition of phytodetritus in the mesohaline and oligohaline regions of the Bay, and investigate the utilization of particulate substrates by bacteria in laboratory model systems.

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