The trophic dynamics of summer flounder (Paralichthys dentatus) in Chesapeake Bay

Latour, Robert J. and Gartland, James and Bonzek, Christopher F. and Johnson, RaeMarie A. (2008) The trophic dynamics of summer flounder (Paralichthys dentatus) in Chesapeake Bay. Fishery Bulletin, 106(1), pp. 47-57.

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Abstract

Data on the trophic dynamics of fishes are needed for management of ecosystems such as Chesapeake Bay. Summer flounder (Paralichthys dentatus) are an abundant seasonal resident of the bay and have the potential to impact foodweb dynamics. Analyses of diet data for late juvenile and adult summer flounder collected from 2002−2006 in Chesapeake Bay were conducted to characterize the role of this flatfish in this estuary and to contribute to our understanding of summer flounder trophic dynamics throughout its range. Despite the diversity of prey, nearly half of the diet comprised mysid shrimp (Neomysis spp.) and bay anchovy (Anchoa mitchilli). Ontogenetic differences in diet and an increase in diet diversity with increasing fish size were documented. Temporal (inter- and intra-annual) changes were also detected, as well as trends in diet reflecting peaks in abundance and diversity of prey. The preponderance of fishes in the diet of summer flounder indicates that this species is an important piscivorous predator in Chesapeake Bay.

Item Type: Article
Title: The trophic dynamics of summer flounder (Paralichthys dentatus) in Chesapeake Bay
Personal Creator/Author:
CreatorsEmail
Latour, Robert J.
Gartland, James
Bonzek, Christopher F.
Johnson, RaeMarie A.
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 106
Number: 1
Page Range: pp. 47-57
Date: 2008
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Item ID: 8856
Depositing User: Patti M. Marraro
Date Deposited: 14 Jun 2012 17:13
Last Modified: 14 Jun 2012 17:13
URI: http://aquaticcommons.org/id/eprint/8856

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