Using bone measurements to estimate the original sizes of bluefish (Pomatomus saltatrix) from digested remains

Wood, Anthony D. (2005) Using bone measurements to estimate the original sizes of bluefish (Pomatomus saltatrix) from digested remains. Fishery Bulletin, 103(2), pp. 461-466.

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Abstract

The ability to estimate the original size of an ingested prey item is an important step in understanding the community and population structure of piscivorous predators (Scharf et al., 1998). More specifically, knowledge of original prey size is essential for deriving important biological information, such as predator consumption rates, biomass of the prey consumed, and selectivity of a predator towards a specific size class of prey (Hansel et al., 1988; Scharf et al., 1997; Radke et al., 2000). To accurately assess the overall “top-down” pressure a predator may exert on prey community structure, prey size is crucial. However, such information is often difficult to collect in the field (Trippel and Beamish, 1987). Stomach-content analyses are the most common methods for examining the diets of piscivorous fish, but the prey items found are often thoroughly digested and sometimes unidentifiable. As a result, obtaining a direct measurement of prey items is frequently impossible.

Item Type: Article
Title: Using bone measurements to estimate the original sizes of bluefish (Pomatomus saltatrix) from digested remains
Personal Creator/Author:
CreatorsEmail
Wood, Anthony D.
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 103
Number: 2
Page Range: pp. 461-466
Date: 2005
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Item ID: 9635
Depositing User: Patti M. Marraro
Date Deposited: 13 Aug 2012 15:47
Last Modified: 13 Aug 2012 15:47
URI: http://aquaticcommons.org/id/eprint/9635

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