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TO THE CAUSES OF SAFFRON COD ELEGINUS GRACILIS SIZE-AGE COMPOSITION DIFFERENCE IN THE CATCHES OF BOTTOM TRAWL SURVEYS IN THE SOUTHWESTERN BERING SEA

Trofimov, I.K. ; Zakharov, D.V. ; Veselov, S.A. ; Terentyev, D.A. ; Spirin, I.Yu ; Tepnin, O.B.

Issledovaniya vodnykh biologicheskikh resursov Kamchatki i severo-zapadnoj chasti Tikhogo okeana, 2015-09, Vol.38, p.75-83

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  • Título:
    TO THE CAUSES OF SAFFRON COD ELEGINUS GRACILIS SIZE-AGE COMPOSITION DIFFERENCE IN THE CATCHES OF BOTTOM TRAWL SURVEYS IN THE SOUTHWESTERN BERING SEA
  • Autor: Trofimov, I.K. ; Zakharov, D.V. ; Veselov, S.A. ; Terentyev, D.A. ; Spirin, I.Yu ; Tepnin, O.B.
  • Assuntos: Eleginus gracilis ; Marine
  • É parte de: Issledovaniya vodnykh biologicheskikh resursov Kamchatki i severo-zapadnoj chasti Tikhogo okeana, 2015-09, Vol.38, p.75-83
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: The size-age composition differences of saffron cod in the catches of bottom trawl surveys carried out in 2012 aboard the SRTM 'Professor Probatov' and in 2013 aboard the SRTM 'Pogranichnik Kirdischev' in similar periods and locations has been revealed. In 2012 the main part of the catches generally consisted of 1+-3+ individuals, and the contribution of underyearlings was 3.4% in the Gulf of Korf and 5.1% in Karaginsky Gulf. In 2013 the main part of the catches consisted of 0+-2+ individuals in Karaginsky Gulf and of underyearlings in the Gulf of Korf. The difference can be explained by early starting the mass outmigration of young saffron cod from the coastal waters to the shelf as a result of earlier and more intense autumn cooling of water in 2013 comparing 2012. In this connection the size-age structure of saffron cod would be estimated more accurate if the surveys were provided in November and December.
  • Idioma: Inglês;Russo
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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