publication . Article . Other literature type . 2017

Do otters target the same fish species and sizes as anglers? A case study from a lowland trout stream (Czech Republic)

Lyach, Roman; Čech, Martin;
Open Access
  • Published: 29 Mar 2017
Abstract
Stocking of hatchery-reared fish into streams is a common practice in fisheries industry as it provides catches for recreational anglers and support for native fish populations. The Eurasian otter Lutra lutra is one of the most important freshwater piscivorous predators in Europe. Impact of otters on stocked fish is a source of conflict between fisheries industry and environmental protection. This study aimed to describe differences between otter diet and catches of anglers on a lowland trout stream with salmonid stocking. Otter diet was studied during winter, using spraint analysis. Fish dominated otter diet (85% of biomass). Gudgeon Gobio gobio was the most im...
Subjects
free text keywords: Brown trout Salmo trutta m. fario, Fish losses, Fish predation, Hatchery-reared fish, Pharyngeal bones, Rainbow trout Oncorhynchus mykiss, Aquatic Science, Game fish, Fishing, Gobio gobio, biology.organism_classification, biology, Lutra, Spraint, Fishery, Stocking, Trout, Otter, biology.animal, Ecology
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publication . Article . Other literature type . 2017

Do otters target the same fish species and sizes as anglers? A case study from a lowland trout stream (Czech Republic)

Lyach, Roman; Čech, Martin;