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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Печать: 0018-8166
ISSN Онлайн: 1943-5991

Выпуски:
Том 55, 2019 Том 54, 2018 Том 53, 2017 Том 52, 2016 Том 51, 2015 Том 50, 2014 Том 49, 2013 Том 48, 2012 Том 47, 2011 Том 46, 2010 Том 45, 2009 Том 44, 2008 Том 43, 2007 Том 42, 2006 Том 41, 2005 Том 40, 2004 Том 39, 2003 Том 38, 2002 Том 37, 2001 Том 36, 2000 Том 35, 1999 Том 34, 1998

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v50.i6.30
pages 32-40

Trophic Competition of Common Sculpin and Stone Loach with Juvenile Salmons of Gen. Salmo in Tributaries of the Onega Lake

Yu. A. Shustov
Petrozavodsk State University Petrozavodsk, Russia North Research Institute of Fishery Petrozavodsk, Russia
I. A. Tyrkin
Petrozavodsk State University Petrozavodsk, Russia North Research Institute of Fishery Petrozavodsk, Russia
Ye. N. Rasputina
Petrozavodsk State University Petrozavodsk, Russia North Research Institute of Fishery Petrozavodsk, Russia

Краткое описание

Over summer there is no food competition of juvenile salmon and brown trout with common sculpin and stone loach because of different diets. In winter food spectra are almost similar, however feeding activity is low and thus food competition is also negligible. Food competition of both juvenile salmons with sculpin and especially with stone loach is noted in autumn, when the feeding activity is high, whereas aerial insects are absent and diet consists exclusively of aquatic invertebrates.


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