Open Access. Powered by Scholars. Published by Universities.®
Size-Selective Mortality; Shad Alosa-Sapidissima; Connecticut River; Largemouth Bass; American Shad; Anoplopoma-Fimbria; Juvenile Mortality; Clupea-Harengus; Class Strength; Life-History
Articles 1 - 1 of 1
Full-Text Articles in Life Sciences
Differential Growth Among Cohorts Of Age-0 Weakfish Cynoscion-Regalis In Chesapeake Bay, Stephen T. Szedimayer, Mp Weinstein, John A. Musick
Differential Growth Among Cohorts Of Age-0 Weakfish Cynoscion-Regalis In Chesapeake Bay, Stephen T. Szedimayer, Mp Weinstein, John A. Musick
VIMS Articles
Age-0 weakfish Cynoscion regalis, were sampled from the Chesapeake Bay-York River estuary in 1983 and 1984 to test for the existence of multiple cohorts and compare growth rates. In both years juveniles were first collected in the estuary in late July, were significantly more abundant from August to mid-October, but were uncommon by the end of October. Significantly more weakfish were collected in 1983 than in 1984. Daily ages were determined based on scale circuli. Cohorts were separated by local minima in birthdate distributions: cohort 1 hatched before 16 July 1983, cohort 2 (16 July-15 August 1983), cohort 3 (15 …