The use of echosounders for long-term studies of the overwintering ecology of sprat (Sprattus sprattus)

Ingrid Solberg, Stein Kaartvedt, Thor Aleksander Klevjer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Upward-facing echosounders, were used to study the overwintering ecology of sprat during four winters in a Norwegian fjord. The echosounders provided continuous data at a temporal resolution of seconds and enabled studies of individual swimming behavior of sprat in addition to population behavior. The long-term coverage of several winters enabled us to study how the sprat responded to different environmental conditions, like ice-free waters versus ice covered waters and hypoxic conditions versus well-oxygenated waters. The studies unveiled that the overwintering strategies of the sprat are flexible, varying in accordance with environmental conditions. © 2013 IEEE.
Original languageEnglish (US)
Title of host publication2013 MTS/IEEE OCEANS - Bergen
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (Print)9781479900015
DOIs
StatePublished - Jun 2013

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