Stable isotope ratios in archived striped bass scales suggest changes in trophic structure

Stable carbon isotope ratios were measured in archived striped bass, Morone saxatilis (Walbaum), scales to identify changes in the feeding behaviour of this species over time. Striped bass tissue and scale samples were collected from Rhode Island coastal waters during 1996 and archived scale samples...

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Bibliographic Details
Published in:Fisheries management and ecology 2003-10, Vol.10 (5), p.329-336
Main Authors: Pruell, R. J., Taplin, B. K., Cicchelli, K.
Format: Article
Language:English
Subjects:
Brackish
carbon isotopes
Chesapeake Bay
food web
Freshwater
Invertebrata
Marine
Morone saxatilis
Narragansett Bay
scales
striped bass
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Summary:Stable carbon isotope ratios were measured in archived striped bass, Morone saxatilis (Walbaum), scales to identify changes in the feeding behaviour of this species over time. Striped bass tissue and scale samples were collected from Rhode Island coastal waters during 1996 and archived scale samples (1982–1997) were obtained from Chesapeake Bay. Known striped bass prey items were also collected from Chesapeake Bay and analysed for δ13C. A significant correlation was observed between carbon isotope ratios in striped bass scales and muscle tissue (r2 = 0.52; P 
ISSN:0969-997X
1365-2400
DOI:10.1046/j.1365-2400.2003.00369.x