Résultats de la recherche
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Soviet krill fishery in 1977–1992, Part 1. Distribution, fishing effort, interannual situation patterns
: FE was developed mostly in subarea 48.2, since 1985 the role of 48.3 is increasing. Type III: 1987 ... maximally developed for the moment. The phenomena occur in subareas 48.1 and 48.2 under increase of the ... Abstract: The data on Soviet krill fishery in i977-1992 are presented. The fishing effort (FE ... ) developed in 1977-1991 was 50086 fishing days in total. According to the pictures presented FE was ...
Meeting Document : WG-EMM-01/57 : Auteur(s): F.F. Litvinov, V.A. Sushin, G.A. Chernega and O.A. Berezhinskiy (Russia)
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Krill CPUE standardisation and comparison with acoustic data based on data collected from Chinese fishing vessels in Subarea 48.1
indicate the changing trends of the density of krill in the water close to sea surface, which may be ... Abstract: The usability of CPUE data as Antarctic krill abundance index was a widely discussed ... by Chinese fishing vessel Furonghai in 2015/16 season. The result showed that the CPUE data could be ... than catch per day data. The veridical distribution and movement of krill could be important source of ...
Meeting Document : WG-EMM-17/41 : Auteur(s): Y. Ying, X. Wang, J. Zhu and X. Zhao
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Filling knowledge gaps east in Dronning Maud Land to inform MPA planning by CCAMLR (ECOgaps): Norwegian cruise to DML 2019
east of the 0 meridian in the MPA planning Domain 4. Focusing on the Astrid ridge, the continental ... Abstract: The aim of the ECOgaps is to improve the knowledgebase on physical conditions and biota ... shelf off of Dronning Maud Land, and the Maud rise, multidisciplinary investigations will be conducted ... in 2019 by the RV Kronprins Haakon. In this working document, the cruise being planned is outlined ...
Meeting Document : WG-EMM-18/13 : Auteur(s): H. Steen, A. Lowther and O.A. Bergstad
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Interactions between cetaceans and fisheries in Southern Ocean
Southern Ocean in the second half of the 1980’s, interactions of cetaceans with these fisheries became ... . Sperm whales became frequently entangled in the line and part of the line was lost in a number of cases ... . Other cetaceans were rarely seen in the vicinity of longline vessels. They became entangled in the line ... Abstract: Soon after longlining on Patagonian toothfish (Dissostichus eleginoides) started in the ...
Meeting Document : WG-FSA-05/11 : Auteur(s): K.-H. Kock (Germany), M. Purves (South Africa) and G. Duhamel (France)
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Seabird by-catch and bait loss in longlining using different setting methods
scarer, but not by using the setting funnel. No increase in the catches of target species was ... minor problem in this fishing experiment. Suggestions on how to improve the efficiency of the two ... scaring device. Bait loss and the catches of target species and sea birds were compared with those of ... effectively by the sea-bird scarer. Losses of mackerel bait were also significantly reduced by using the ...
Meeting Document : WG-FSA-96/06 : Auteur(s): Løkkeborg, S.
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Report on fish by-catch on exploratory fishing in Divisions 58.4.1 and 58.4.2
or groups of species. In 2018, by-catch represented 12% of the total catch (43 tonnes over 307 tonnes ... of Dissostichus spp.) in Divisions 58.4.1 and 58.4.2. 98% of the biomass was represented by 2 ... everywhere. The ratio by-catch to target catch was higher in the eastern part of Division 58.4.1. The ratio ... /1000 hooks locally. As found in others areas of the Convention, Macrourus CPUE was 2 times higher for ...
Meeting Document : WG-FSA-18/28 : Auteur(s): C. Péron, P. Yates, D. Maschette, C. Chazeau, P. Ziegler, D. Welsford, N. Gasco and G. Duhamel
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Fishing for structure; can we describe normal patterns in toothfish fishing operations using catch and effort data?
toothfish in CCAMLR fisheries and link those steps to the variables recorded as part of the CCAMLR catch and ... and their use in identifying erroneous data. The analyses show that many of the useful metrics that ... are needed to control for the influence of multiple variables before we interpret patterns in the data ... Abstract: We describe the typical steps involved in demersal longline fishing operations for ...
Meeting Document : WG-FSA-16/36 : Auteur(s): J.M. Fenaughty and K. Large
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MULTIPLE INDICATORS SUGGEST A STRONG ECOSYSTEM ANOMALY AT SOUTH GEORGIA IN 2009
local oceanographic and atmospheric conditions. Much of the observed variability in various fitness ... diets and low krill biomass in the regularly surveyed “Western Core Box”. Consequently many of the ... lowest level in over two decades of monitoring. These observations provide support for the idea that ... krill is a major mediator of climatic effects on the ecosystem. They also suggest that icefish diets, in ...
Meeting Document : WG-EMM-09/23 : Auteur(s): S. Hill, M. Belchier, M. Collins, S. Fielding, E. Murphy, P. Trathan, H. Venables and C. Waluda (United Kingdom)
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Revised joint research proposal for Dissostichus spp. in Subarea 88.3 by Korea and New Zealand
the abundance of Antarctic toothfish in Subarea 88.3. Secondary objectives are to improve ... understanding of stock structure of toothfish in this area, to carry out calibration trials between the two ... released on the slope, whilst also prospecting two of the northern seamount complexes and two boxes on the ... southern shelf, where little or no fishing has occurred. The main objective of the proposal is to determine ...
Meeting Document : WG-FSA-18/42 : Auteur(s): Delegations of the Republic of Korea and New Zealand
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2015-16 Research plan in Division 58.4.4 for Dissostichus spp.
estimated around 700 tonnes. CASAL model is updated with 2014 data but in the absence of an assessment using ... Abstract: Regarding the low levels of stocks of Dissostichus spp. and the high levels of IUU ... fishing, CCAMLR decided to close the fishery in 2002 in division 58.4.4. Since 2008 only one vessel ... 24-01. In 2014, WG-FSA agreed research fishing conducted in the research blocks C and D by two ...
Meeting Document : WG-SAM-15/52 : Auteur(s): Delegation of France