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An evaluation of agreement between pectoral spines and otoliths for estimating ages of catfishes

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J.A. Olive, Harold Schramm Jr., Patrick D. Gerard, and E. Irwin, 2011, An evaluation of agreement between pectoral spines and otoliths for estimating ages of catfishes: American Fisheries Society Symposium, v. 77.

Summary

Otoliths have been shown to provide more accurate ages than pectoral spine sections for several catfish populations; but sampling otoliths requires euthanizing the specimen, whereas spines can be sampled non-lethally. To evaluate whether, and under what conditions, spines provide the same or similar age estimates as otoliths, we examined data sets of individual fish aged from pectoral spines and otoliths for six blue catfish Ictalurus furcatus populations (n=420), 14 channel catfish Ictalurus punctatus populations (n=997), and 10 flathead catfish Pylodictus olivaris populations (n=947) from lotic and lentic waters throughout the central and eastern U.S. Logistic regression determined that agreement between ages estimated from otoliths [...]

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Type Scheme Key
local-index unknown 70154830
local-pk unknown 70154830
series unknown American Fisheries Society Symposium

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journalAmerican Fisheries Society Symposium
parts
typevolume
value77
typePublication Place
valueBethesda, MD
languageEnglish
citationTypeArticle

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