Author : Andrew J. Kirk
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (951 download)
Book Synopsis Seasonal Variation of Fish and Macroinvertebrate Biomass Spectra in Southern West Virginia Streams by : Andrew J. Kirk
Download or read book Seasonal Variation of Fish and Macroinvertebrate Biomass Spectra in Southern West Virginia Streams written by Andrew J. Kirk and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The biomass size spectrum - the power-law scaling relationship between average individual size and total biomass - has often been studied in lake and marine ecosystems, but rarely in lotic systems. The objective of this study was to test for characteristic biomass spectra in small temperate streams. Seasonal fish and macroinvertebrate data, including population abundance and biomass estimates, were collected in three wadeable, southern West Virginia streams from October 2013 to May 2015. Fish abundances were estimated with 3-pass electrofishing (depletion) surveys and individuals were weighed in the field. Macroinvertebrates were collected with a Hess sampler and returned to the lab for identification to the lowest practical level (usually genus). Published length-mass regressions were then used to estimate individual mass. All size spectra relationships (linear regression of log-log data) were highly significant (p