Born to be wild: effects of rearing density and environmental enrichment on stress, welfare, and smolt migration in hatchery-reared Atlantic salmon

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Fältnamn	Indikatorer	Metadata
000		03230naa a2200349 4500
001		oai:gup.ub.gu.se/245911
003		SwePub
008		240528s2017 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://gup.ub.gu.se/publication/2459112 URI
024	7	a https://doi.org/10.1139/cjfas-2015-05152 DOI
040		a (SwePub)gu
041		a eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Rosengren, Malin,d 1982u Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences4 aut0 (Swepub:gu)xrmali
245	1 0	a Born to be wild: effects of rearing density and environmental enrichment on stress, welfare, and smolt migration in hatchery-reared Atlantic salmon
264	1	b Canadian Science Publishing,c 2017
520		a Hatchery-reared salmonids released into the wild generally have poor survivability compared with wild conspecifics. To assess potential hatchery rearing improvements, behavioral and physiological effects of reducing animal density and adding in-tank shelter were investigated. Atlantic salmon (Salmo salar) parr were placed in barren or shelter-enriched tanks at high or low density up until release as smolts. Lowered density rendered positive effects on growth and intestinal barrier function, and both lowered density and shelter decreased conspecific aggression, as inferred by fin damage. Furthermore, while the presence of shelter decreased stress hormone levels following human disturbance, it also decreased growth and smolt migration success, an effect particularly pronounced at high densities. Therefore, we suggest that this type of structural enrichment should be avoided for Atlantic salmon smolts held at high densities and conclude that a lowered animal density with or without shelter has the highest potential in producing a more resilient smolt for stocking.
650	7	a NATURVETENSKAPx Biologi0 (SwePub)1062 hsv//swe
650	7	a NATURAL SCIENCESx Biological Sciences0 (SwePub)1062 hsv//eng
653		a Fiske
653		a Biologi
700	1	a Kvingedal, E4 aut
700	1	a Näslund, Joacim,d 1985u Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences4 aut0 (Swepub:gu)xnasjo
700	1	a Johnsson, Jörgen I,d 1959u Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences4 aut0 (Swepub:gu)xjohjo
700	1	a Sundell, Kristina,d 1959u Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences4 aut0 (Swepub:gu)xskris
710	2	a Göteborgs universitetb Institutionen för biologi och miljövetenskap4 org
773	0	t Canadian Journal of Fisheries and Aquatic Sciencesd : Canadian Science Publishingg 74:3, s. 396-405q 74:3<396-405x 0706-652Xx 1205-7533
856	4	u https://tspace.library.utoronto.ca/bitstream/1807/74555/1/cjfas-2015-0515.pdf
856	4 8	u https://gup.ub.gu.se/publication/245911
856	4 8	u https://doi.org/10.1139/cjfas-2015-0515

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Av författaren/redakt...: Rosengren, Malin ...; Kvingedal, E; Näslund, Joacim, ...; Johnsson, Jörgen ...; Sundell, Kristin ...

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