Fruh, Erica L. and Keller, Aimee and Trantham, Jessica and Simon, Victor (2010) Accuracy of sex determination for northeastern Pacific Ocean thornyheads (Sebastolobus altivelis and S. alascanus). Fishery Bulletin, 108(2), pp. 226-232.
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Determining the sex of thornyheads (Sebastolobus alascanus and S. altivelis) can be difficult under field conditions. We assessed our ability to correctly assign sex in the field by comparing results from field observations to results obtained in the laboratory through both macroscopic and microscopic examination of gonads. Sex of longspine thornyheads was more difficult to determine than that of shortspine thornyheads and correct determination of sex was signif icantly related to size. By restricting the minimum size of thornyheads to 18 cm for macroscopic determination of sex we reduced the number of fish with misidentified sex by approximately 65%.
|Title:||Accuracy of sex determination for northeastern Pacific Ocean thornyheads (Sebastolobus altivelis and S. alascanus)|
|Journal or Publication Title:||Fishery Bulletin|
|Page Range:||pp. 226-232|
|Issuing Agency:||United States National Marine Fisheries Service|
|Depositing User:||Patti M. Marraro|
|Date Deposited:||11 Jun 2012 20:32|
|Last Modified:||11 Jun 2012 20:32|
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