Use of Ultrasound Imaging to Determine Sex of Shovelnose Sturgeon

Robert E Colombo, Paul S Wills, James E Garvey

Research output: Contribution to journalArticlepeer-review

Abstract

During November 2002, 51 shovelnose sturgeon Scaphirhynchus platorynchus were sexed by ultrasound imaging using a portable ultrasonograph. We identified males with 96% accuracy ( N = 25) and females with 80% accuracy ( N = 25); one hermaphroditic individual was misidentified as a male. Overall, ultrasound imaging was 86% accurate. Sex in postspawned females was difficult to determine, 60% being misidentified as males ( N = 5). Ultrasonography is an effective noninvasive method for sex determination that can be applied to other species of Acipenseriformes. Modern portable equipment expands its utility to field studies.

Original languageAmerican English
JournalDefault journal
StatePublished - Feb 1 2004
Externally publishedYes

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