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- W2072669716 abstract "Limnology and OceanographyVolume 38, Issue 2 p. 425-434 NotesFree Access Hydroacoustic measurement of the density of the Baikal macrozooplankter Macrohectopus branickii First published: March 1993 https://doi.org/10.4319/lo.1993.38.2.0425Citations: 24AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Experimental studies and statistical analyses were performed to evaluate hydroacoustic methods for assessing the density of Macrohectopus branickii (Amphipoda, Gammaridae) in Lake Baikal. Minimal registered abundance (expressed as volume) appeared to be <1 mg m−3(echosounder at a frequency of 200 kHz). Patterns of Macrohectopus diel vertical migration varied with individual age, size, and sex. It is preferable to assess abundance of Macrohectopus at night when the population is distributed primarily in the upper 100 m. Under these conditions, acoustic estimates of animal densities can be made by applying calculated data on the scattering ability of Macrohectopus within the size range of 1–30 mm: TS(kg) = −36.8±0.5 dB kg−1 (mean ±95% C.I.). Citing Literature Volume38, Issue2March 1993Pages 425-434 RelatedInformation" @default.
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- W2072669716 title "Hydroacoustic measurement of the density of the Baikal macrozooplankter Macrohectopus branickii" @default.
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