Premium
Development and validation of methods for measuring multiple biochemical indices of condition in juvenile fishes
Author(s) -
Weber L. P.,
Higgins P. S.,
Carlson R. I.,
Janz D. M.
Publication year - 2003
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1046/j.1095-8649.2003.00178.x
Subject(s) - biology , juvenile , pimephales promelas , rainbow trout , juvenile fish , zoology , fishery , fish <actinopterygii> , trout , cyprinidae , salmonidae , ecology , minnow
The investigation established and validated methods to measure multiple biochemical indices of condition (whole body total lipids, whole body triglycerides, muscle RNA : DNA ratio and muscle protein) simultaneously in the same individual juvenile fish. It also provided examples of their application using a species comparison (salmonids and cyprinids) of the degree of change in these indices after food deprivation. The results showed that juvenile rainbow trout Oncorhynchus mykiss were much more susceptible to a decline in all biochemical indices of condition than juvenile fathead minnows Pimephales promelas upon food deprivation. The combination of these techniques can be used to accurately assess condition and growth potential of individuals from wild fish populations.