caa a22 4500 606227350 CHVBK 20210128101157.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s10641-015-0436-y doi (NATIONALLICENCE)springer-10.1007/s10641-015-0436-y Eggs from anadromous adults provide marine-derived nutrients to Atlantic salmon and brown trout parr in late autumn - observations from a Swedish coastal stream [Elektronische Daten] [J. Näslund, D. Aldvén, L. Závorka] In this paper we demonstrate that eggs from anadromous salmonines can constitute a large proportion of the dietary intake of individual juvenile Atlantic salmon Salmo salar and brown trout Salmo trutta during the spawning period in late autumn. The majority of fish older than 1year residing on a spawning ground were found to have ingested eggs from spawning salmonines (Salmo sp.). Young-of-the-year brown trout were also able to consume eggs, at least down to a minimum fork length of 68mm. The smallest Atlantic salmon found to have consumed eggs had a fork length of 79mm. Larger fish were more likely to consume eggs, and consumed more eggs, than smaller individuals. The eggs of anadromous salmonines provide a rich source of marine-derived nutrients to the freshwater residing juveniles at the onset of winter. Our study highlights that these eggs may constitute an important energy input for juvenile salmonines in European anadromous populations, and could possibly influence winter survival rates and subsequent smoltification in the following spring. Springer Science+Business Media Dordrecht, 2015 Salmonidae nationallicence Salmoninae nationallicence Oophagy nationallicence Egg cannibalism nationallicence Spawning nationallicence Europe nationallicence Näslund J. Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden aut Aldvén D. Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden aut Závorka L. Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden aut Environmental Biology of Fishes Springer Netherlands 98/12(2015-12-01), 2305-2313 0378-1909 98:12<2305 2015 98 10641 https://doi.org/10.1007/s10641-015-0436-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10641-015-0436-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Näslund J. Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden aut NATIONALLICENCE 700 1- Aldvén D. Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden aut NATIONALLICENCE 700 1- Závorka L. Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden aut NATIONALLICENCE 773 0- Environmental Biology of Fishes Springer Netherlands 98/12(2015-12-01), 2305-2313 0378-1909 98:12<2305 2015 98 10641