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Expeditionsrapport IBTS, januari 2015

Vitale, Francesca and Rudolphi, Ann-Christin and Bland, Barbara (2015). Expeditionsrapport IBTS, januari 2015. Lysekil: (NL, NJ) > Department of Aquatic Resources, Sveriges lantbruksuniversitet. Aqua reports ; 2015:8
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Abstract

Havsfiskelaboratoriets trålexpeditioner i Västerhavet (Skagerrak och Kattegatt) genomförs två gånger årligen, i kvartal 1 och 3. Den franska bottentrålen GOV används för provtagningen av demersala arter. Under kvartal 1 används också en MIK-trål nattetid för provtagning av fisklarver. Under denna expedition gjordes totalt 46 giltiga tråldrag i hela området med GOV-trålen, 27 i Skagerrak och 19 i Kattegatt. Tre stationer kunde inte fiskas p.g.a. Svenska Försvarsmaktens tillträdesförbud varvid den värdefulla tidsserien bröts för dessa stationer. Den totala fångsten uppgick till 18 ton och inkluderade 74 fiskarter. Den biologiska provtagningen, som innebär bland annat insamling av otoliter för åldersanalys, gjordes på de viktigaste kommersiella arterna. Totalt togs 6 266 otoliter från 11 olika arter. MIK-trålningen resulterade i 65 godkända tråldrag med fångst av bland annat 121 sillarver, 25 skarpsillarver och 11 ållarver.

Authors/Creators:Vitale, Francesca and Rudolphi, Ann-Christin and Bland, Barbara
Title:Expeditionsrapport IBTS, januari 2015
Alternative abstract:
LanguageAbstract
English

The Institute of Marine Research is responsible for the trawl survey in the Skagerrak and the Kattegat areas of the North Sea. This survey is conducted twice annually, in quarters 1 and 3. The French bottom trawl GOV is used for sampling demersal species while in Q1 only, a MIK trawl is used at night for sampling fish larvae. During this survey a total of 46 valid hauls were towed in the whole area using the GOV-trawl, 27 in the Skagerrak and 19 in the Kattegat. Three stations had to be cancelled due to the Swedish Armed Forces’ disallowance. The total catch amounted to 18 tonnes and included 74 species of fish. The biological sampling, which includes collection of otoliths for age analysis, was done on the most important commercial species. In total 6 266 otoliths were collected from 11 different species. MIK trawling resulted in 65 valid trawl hauls with catches of 121 herring larvae, 25 sprat larvae and 11 eel larvae and several other species.

Series/Journal:Aqua reports (12351367)
Year of publishing :2015
Number:2015:8
Number of Pages:19
Place of Publication:Lysekil
Publisher:Institutionen för akvatiska resurser, Sveriges lantbruksuniversitet
Associated Programs and Other Stakeholders:SLU - Environmental assessment > Programme Coastal and sea areas
ISBN for printed version:978-91-5769319-8
Language:Swedish
Publication Type:Report
Article category:Other scientific
Full Text Status:Public
Agris subject categories.:M Aquatic sciences and fisheries > M01 Fisheries and aquaculture - General aspects
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Fish and Wildlife Management
Agrovoc terms:data collection, fishes, baltic sea baltic sea
Keywords:datainsamling, fiskpopulationer, Östersjön
URN:NBN:urn:nbn:se:slu:epsilon-e-3316
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-3316
ID Code:13135
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Aquatic Resources
Deposited By: SLUpub Connector
Deposited On:11 Mar 2016 10:02
Metadata Last Modified:11 Mar 2016 10:02

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