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Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems
Published on: July 30, 2019
Charles Birkeland1, Paul K Dayton
1Department of Zoology, 2538 The Mall, Edmondson 164, University of Hawaii at Manoa, Honolulu, HI 96822, USA. charlesb@hawaii.edu
Abstract:
Research by Berkeley et al. and by Bobko and Berkeley has recently demonstrated that older individuals of some fish species produce larvae that have substantially better survival potential than do larvae from younger fishes. These new findings augment established knowledge that larger individuals usually have exponentially greater fecundity. This is important because commercial fisheries and especially recreational fishing often target the larger fish. The protection of larger or older individuals is necessary for the sustainability of species currently exploited by humans.
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