Résultats de la recherche

1. Dynamics of Antarctic krill in the Bransfield Strait during austral summer and autumn investigated using acoustic data from a fishing vessel

   Abstract:  The Antarctic krill fisheries have evolved to operate in ever more concentrated ... geographical areas of predictable high krill densities, and knowledge about trends and variability in krill ... fishing vessels might help provide such insight. In the present work, the dynamics of krill with regards ... studied using acoustic data from the Chinese krill fishing vessel ‘Fu Rong Hai’ operating in the ...

   Meeting Document : WG-EMM-17/40 : Auteur(s): X. Wang, G. Skaret, O.R. Godø and X. Zhao

2. Annual report of research fishing operations at Division 58.4.3a in the 2017/18 fishing season

   toothfish (Dissostichus eleginoides) in Division 58.4.3a in the 2017/18 fishing season by France and Japan ... . One fishing cruise by French vessel (“ Mascareignes III ”) took place in May 2018 and caught 2.5 ... tonnes of D. eleginoides in 58.4.3a. The data set, C2 and Observer data, were provided by the CCAMLR ... Secretariat on the 21th August 2018. In this paper, the data set during current fishing season (2017/18) was ...

   Meeting Document : WG-FSA-18/50 : Auteur(s): Delegations of France and Japan

3. Fish by-catch in the krill fishery: 2018 update

   Abstract:  Data on fish bycatch in the krill fishery from commercial catch data (120 949 hauls ... increase in the data quality from the observer scheme and an increase in the frequency of fish bycatch in ... the commercial krill fishery catch data. As in previous years there was a high degree of overlap in ... the most frequently reported taxa in the C1 data and SISO data, with Lepidonothen larseni the most ...

   Meeting Document : WG-FSA-18/10 : Auteur(s): CCAMLR Secretariat

4. Descriptive analysis of mesopelagic backscatter from acoustic data collected in the Ross Sea

   estimate middle trophic level prey organisms (e.g., krill and mesopelagic fish) in the Ross Sea. Single ... frequency (38 kHz) acoustic data were available from New Zealand longline vessels participating in the ... exploratory fishery for toothfish in 2002–03 and 2005–06, and multifrequency (12, 38, and 120 kHz) acoustic ... data were collected from the research vessel Tangaroa during a voyage to the western Ross Sea in ...

   Meeting Document : WG-EMM-06/11 : Auteur(s): R.L. O’Driscoll (New Zealand)

5. Distribution and size-age composition of Antarctic krill in the South Orkney Islands region (CCAMLR Subarea 48.2)

   (Euphausia superba) in commercial catches by Russian trawler ' Maxim Starostin ' in the South ... Orkney region (Subarea 48.2). The fishery operations were conducted between January and March in 2008 ... in anomalous cold 2009/2010 season significant proportion of krill of cohort 2+ skipped spawning ... . Individuals of Antarctic krill in age 1+ were absent in catches in both 2008/2009 and 2009/2010 seasons ...

   Meeting Document : WG-EMM-10/16 : Auteur(s): D.O. Sologub and A.V. Remeslo (Russia)

6. Proposal for a winter longline survey of Antarctic toothfish in the northern region of Subareas 88.1 and 88.2

   up in the spring, may provide access to a productive pagophilic ecosystem for feeding as well as a ... patterns may be influenced by changes in sea ice or circulation patterns that affect observed recruitment ... productivity of the stock assumed in the stock assessment. 3) Biological characteristics of the northern ... . Evidence to date found no change in these characteristics in June, suggesting sampling later in the ...

   Meeting Document : WG-FSA-18/40 : Auteur(s): Delegation of New Zealand

7. An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging program in Subareas 88.1 and 88.2 for 2006/07

   Abstract:  Descriptive analyses of the toothfish tagging programme carried out in Subareas 88.1 ... vessels and preliminary data for other vessels that fished in 2007. Release and recapture data that ... described in this paper for the first time. Overall, a reported total of 12 177 Antarctic toothfish have ... . The number of tags recaptured in the Ross Sea in 2007 by New Zealand vessels was the highest annual ...

   Meeting Document : WG-SAM-07/5 : Auteur(s): A. Dunn, S.M. Hanchet and S.L. Ballara (New Zealand)

8. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2005/06

   nine years in Subarea 88.1 and for five years in Subarea 88.2 with a large amount of data collected on ... toothfish and the associated bycatch. All SSRUs in the two subareas except for 881D and 882C have now been ... combined catch limit of 3451 t. The subarea catch limit was almost reached in both Subarea 88.1 and 88.2 ... catch limit being slightly exceeded in the 2006 season. Concentration of effort within a smaller spatial ...

   Meeting Document : WG-FSA-06/29 : Auteur(s): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)

9. Oceanological factors affecting formation of mackerel icefish aggregations in the South Georgia area during different seasons of the year

   Abstract:  In wintering period icefish do not form aggregations, is feeding inactively and ... disperse at the depths more than 250 m within rather narrow temperature range (1.6-1,7ºC). In this period ... the water temperature is a limiting factor restricting fish distribution. In spring-summer icefish are ... feeding at the water temperature from 0.0ºC to 1.9ºC in the South Georgia area and to 2.0ºC near Shag ...

   Meeting Document : WG-FSA-05/76 : Auteur(s): Zh.A. Frolkina (Russia)

10. Decrease in numbers of the eastern rockhopper penguins Eudyptes chrysocome filholi at Marion Island, 1994/95 to 2002/03

    from about 173 000 pairs in 1994/95 to about 67 000 pairs in 2001/02. During 1994/95-2002/03 pairs ... adults, and there was a decrease in the mass at arrival at breeding colonies of both males and females ... . Except in 1997/98, the mass of chicks at fledging was less than that recorded at two other localities ... a marked increase in the contribution of fish to the diet in 1999/00 that coincided with an increase ...

    Meeting Document : WG-EMM-03/10 : Auteur(s): R.J.M. Crawford, J. Cooper, B.M. Dyer, M.D. Greyling, N.T.W. Klages, D.C. Nel, J.L. Nel, S.L. Petersen and A.C. Wolfaardt (South Africa)

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