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In situ relations of target strength to fish size for Great Lakes pelagic planktivores

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In situ relations of target strength to fish size for Great Lakes pelagic planktivores; 1997; Article; Journal; Transactions of the American Fisheries Society; Fleischer, Guy W.; Argyle, Ray L.; Curtis, Gary L.

Summary

We found mean target strength to be a reliable in situ predictor of fish weight, which allows direct estimation of the pelagic planktivore fish biomass from target strength measurements. Fish were collected by midwater trawling concurrent with target strength measurements (120-kHz frequency) in Lake Michigan. The mean weight of fish caught ranged from 2 to 71 g and mean target strength ranged from –54.9 to –38.0 decibels. Changes in mean target strength explained 73% of the variability in mean weight for combinations of various planktivore species, principally rainbow smelt Osrnerus mordax, bloaters Coregonus hovi, and alewives Alosa pseudoharengus. Bloaters were found to be less acoustically reflective than the other pelagic species, [...]

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Type Scheme Key
local-index unknown 1000709
local-pk unknown 1000709
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1577/1548-8659(1997)126<0786:ISROTS>2.3.CO;2
series unknown Transactions of the American Fisheries Society

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citationTypeArticle
journalTransactions of the American Fisheries Society
languageEnglish
parts
typevolume
value126
typeissue
value5

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