Biomass and Production of Fishes in Natural and Channelized Streams

descriptionPublicationkeyboard_double_arrow_right Article 01 Oct 1986 English Publisher:Canadian Science PublishingJournal:Canadian Journal of Fisheries and Aquatic Sciences, volume 43, pages 1,926-1,934 (issn: 0706-652X, eissn: 1205-7533,

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Authors: Cameron B. Portt; Eugene K. Balon; David L. G. Noakes;

doi: 10.1139/f86-238

Biomass and Production of Fishes in Natural and Channelized Streams

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Abstract

Fish biomass and production were estimated at two channelized and two unchannelized stream sections. Biomass and total and available production were much lower in the channelized sections than in the natural sections. Regressions of the log of production versus the log of initial biomass had slopes significantly different from 1. This is apparently due to changes in age structure which occurred concurrently with changes in biomass. The physical homogeneity of channelized streams provides opportunities for manipulative research.

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