Patterns of prey size and taxonomic composition in larval fish: are there general size-dependent models?

被引:122
作者
Pepin, P [1 ]
Penney, RW [1 ]
机构
[1] Fisheries & Oceans Canada, St Johns, NF A1C 5X1, Canada
关键词
fish larvae; empirical model; prey selection; feeding;
D O I
10.1111/j.1095-8649.1997.tb06094.x
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
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. (C) 1997 The Fisheries Society of the British Isles.
引用
收藏
页码:84 / 100
页数:17
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