文章基本信息

标题：Hardangerfjorden - produksjon av laksefisk og effekter p. de ville bestandene av laksefisk / The Hardanger Fjord - Salmonid Aquaculture and effects on wild salmonid populations
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作者：H.kon Otter. ; Ove Skilbrei ; .ystein Skaala 等
期刊名称：Fisken og Havet
印刷版ISSN：0071-5638
出版年度：2004
卷号：3
出版社：Institute of Marine Research Bergen
摘要：Wild populations of salmon and seatrout in the Hardanger Fjord show significant declines in recent years.The report also describes the hydrographical conditions and the aquaculture production of salmonids in the fjord. The official numbers of adult salmon lice predating on cage reared salmon are used to estimate the production of salmon lice during spring in this fjord. It is assumed that salmon lice are the most acute threat to wild salmonids in the fjord, but the genetic impact of farmed escapees is also of great concern. A lowering of the action level for salmon lice treatment and initiation of a environmental survaillance programme is proposed.