PATTERNS OF PREY SIZE AND TAXONOMIC COMPOSITION IN LARVAL FISH: ARE THERE GENERAL SIZE-DEPENDENT MODELS?

P. Pepin, R.W. Penney-1997

Journal of Fish Biology, 51 Suppl. A : 84-100 (from Current Contents)

Abstract:

The allometric relationship of maxilla length to larval fish weight approached a slope of 1/3 for 11 species from Conception Bay, Newfoundland. In 10 of these species, mean prey size increased with length of the maxilla but not constantly. In six species, niche breadth increased with length of maxilla. The rate of change in niche breadth was inversely related to the rare of change in mean prey size. Nauplii and copepodites of calanoids were selected positively, and cyclopoids negatively for almost all species of larval fish.

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