Standard weight (Ws) equations for four rare desert fishes

Alexander V. Didenko, Scott A. Bonar, William J Matter

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Standard weight (Ws) equations have been used extensively to examine body condition in sport fishes. However, development of these equations for nongame fishes has only recently been emphasized. We used the regression-line-percentile technique to develop standard weight equations for four rare desert fishes: flannelmouth sucker Catostomus latipinnis, razorback sucker Xyrauchen texanus, roundtail chub Gila robusta, and humpback chub G. cypha. The Ws equation for flannelmouth suckers of 100-690 mm total length (TL) was developed from 17 populations: log10Ws = -5.180 + 3.068 log10TL. The Ws equation for razorback suckers of 110-885 mm TL was developed from 12 populations: log 10Ws = -4.886 + 2.985 log10TL. The W s equation for roundtail chub of 100-525 mm TL was developed from 20 populations: log10Ws = -5.065 + 3.015 log10TL. The Ws equation for humpback chub of 120-495 mm TL was developed from 9 populations: log10Ws = -5.278 + 3.096 log 10TL. These equations meet criteria for acceptable standard weight indexes and can be used to calculate relative weight, an index of body condition.

Original languageEnglish (US)
Pages (from-to)697-703
Number of pages7
JournalNorth American Journal of Fisheries Management
Volume24
Issue number2
DOIs
StatePublished - May 2004

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deserts
desert
fish
body condition
game fish
sport
Gila robusta
Gila cypha
Catostomus latipinnis
Xyrauchen texanus

ASJC Scopus subject areas

  • Aquatic Science

Cite this

Standard weight (Ws) equations for four rare desert fishes. / Didenko, Alexander V.; Bonar, Scott A.; Matter, William J.

In: North American Journal of Fisheries Management, Vol. 24, No. 2, 05.2004, p. 697-703.

Research output: Contribution to journalArticle

Didenko, Alexander V. ; Bonar, Scott A. ; Matter, William J. / Standard weight (Ws) equations for four rare desert fishes. In: North American Journal of Fisheries Management. 2004 ; Vol. 24, No. 2. pp. 697-703.
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