Decreasing salinity improves the feeding conditions of the Baltic herring (Clupea harengus membras) during spring in the Bothnian Sea, northern Baltic - UTU Research Portal

A1 Refereed original research article in a scientific journal

Decreasing salinity improves the feeding conditions of the Baltic herring (Clupea harengus membras) during spring in the Bothnian Sea, northern Baltic

Authors: M. Rajasilta, J. Hänninen, I. Vuorinen

Publisher: Oxford Journals

Publication year: 2014

Journal: ICES Journal of Marine Science

Journal acronym: ICES J MAR SCI

Volume: 71

Issue: 5

First page : 1148

Last page: 1152

Number of pages: 5

ISSN: 1054-3139

DOI: https://doi.org/10.1093/icesjms/fsu047

Web address : http://icesjms.oxfordjournals.org

Abstract

The stomach contents of the herring (Clupea harengus membras L.) from the Bothnian Sea, northern Baltic, were analysed during spring 2011 and 2013. The stomachs were full of Limnocalanus macrurus in May and June, and an improvement in the condition of herring was observed when ﬁsh started to feed on this prey. The analyses showed that Limnocalanus is currently an important link between lower trophiclevels and Baltic herring in the Bothnian Sea.