Fisheries Behavioral Ecology - Abstracts
Jordan, R.C., D.V. Howe, T.P. Hurst, and F. Juanes. 2003. Feeding habits of age-0 striped bass, Morone saxatilis, in the mid-Hudson River estuary: temporal, spatial, and ontogenetic variation. Estuaries 26:1486-1493.
Abstract
We quantified temporal and spatial variability in diets of 950 juvenile (age-0) striped bass in the Hudson
River estuary. We used canonical correspondence analysis to assess the roles of temporal and spatial habitat variability
in juvenile diet variation. We found that juvenile striped bass diets in the Hudson River were only modestly comparable
to diets in other east coast estuaries. Among-year differences (51.4%) and spatial differences (41.9%) were substantially
associated with juvenile striped bass diet. We found ontogeny (2.8%) and within-season variation (9.5%) to only weakly
associate with diet variation. Our results indicate that an understanding of the temporal and spatial variation within the
Hudson River estuary is vital in understanding variation in feeding by resident juvenile fish.
Last updated
26 April, 2007
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