Résultats de la recherche

1. Revised proposal for the ongoing research plan on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b (2016/17–2020/21)

   this research plan in 2015 and a joint proposal was submitted for the first time in 2016 (WG-SAM-16/06 ... and WG-FSA-16/33 Rev. 1) for a period of 5 years. The proposal submitted here has been substantially ... revised to address the concerns expressed at WG-FSA 2019 and SC-CAMLR-XXXVII (para. 3.158). We followed ... and improved the revised research plan presented in SC-CAMLR-XXXVII Annex 12 and redefined slightly ...

   Meeting Document : WG-FSA-2019/64 : Auteur(s): Delegations of Japan and France

2. Report of biological observations carried out on board the krill fishing vessel More Sodruzhestva in April to August 1991

   Abstract:  An observation program was carried out by a biologist-observer on board the krill ... fishing vessel More Sodruzhestva in April to August 1991 in Subareas 48.2 and 48.3. The program included ... physiological status and size composition of krill and also for determining the level of by-catch of juvenile ... dominant in catches taken in April/May in the north-west of Subarea 48.2. Krill of modal sizes 31 to 32 mm ...

   Meeting Document : WG-KRILL-92/06 : Auteur(s): V.I. Latogursky (Russia)

3. DNA barcoding highlights a cryptic species of grenadier (genus Macrourus) in the Southern Ocean

   Abstract:  The genus Macrourus is a small group of bentho-pelagic fishes with three species ... recognized in the Southern Ocean and one in cold temperate to Arctic waters in the North Atlantic Ocean. DNA ... four well supported clades among the three Southern Ocean species. Additional specimens collected in ... the Ross Sea region, and provisionally identified as M. whitsoni, were divided into two COI haplotypes ...

   Meeting Document : WG-FSA-10/33 : Auteur(s): P.J. Smith (New Zealand), D. Steinke (Canada), P.J. McMillan, A.L. Stewart, S.M. McVeagh (New Zealand), J.M. Diaz De Astarloa (Argentina), D. Welsford and R.D Ward (Australia)

4. Quantifying the escape mortality of trawl caught Antarctic krill (Euphausia superba)

   Abstract:  Antarctic krill (Euphausia superba) is an abundant fishery resource, the harvest levels ... of which are expected to increase. However, many of the length classes of krill can escape through ... commonly used commercial trawl mesh sizes. A vital component of the overall management of a fishery is to ... estimate the total fishing mortality and quantify the mortality rate of individuals that escape from ...

   Meeting Document : WG-EMM-16/04 : Auteur(s): B.A. Krafft, L.A. Krag, A. Engås, S. Nordrum, I. Bruheim and B. Herrmann

5. Upward adjustments to local catch limits for the krill fishery in Subarea 48.1

   Abstract:  Here we compile three vignettes that, together, provide the basis for making upward ... adjustments to local catch limits for the krill fishery in Subarea 48.1.  We use the term local catch limit to ... refer to a catch limit that applies to a group of SSMUs (gSSMU), and the work presented here is based on ... the gSSMUs defined in another compilation of vignettes (AERD 2016a, pp. 3-13).  We propose upward ...

   Meeting Document : WG-EMM-16/47 : Auteur(s): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries

6. Population trends and reproductive success at a frequently visited penguin colony on the western Antarctic Peninsula

   Abstract:  Petermann Island (65°10'S, 64°10'W), one of the Antarctic Peninsula’s most ... frequently visited locations, is at the epicenter of a rapid shift in which an Adélie penguin dominated fauna ... is becoming gentoo penguin dominated. Over the course of five seasons, the breeding productivity of ... community change. The impact of tourist visitation on breeding success was also investigated. Consistent ...

   Meeting Document : WG-EMM-16/P07 : Auteur(s): H.J. Lynch, W.F. Fagan and R. Naveen

7. Estimates of length-frequency in the assessment of mackerel icefish Champsocephalus gunnari in Subarea 48.3

   Abstract:  This working document provides details of a modification in the method of calculating ... length distributions used in the assessment of Champsocephalus gunnari from the length distributions of ... individual hauls. The effect of these changes in method have little impact on the catches that would have ... been permitted based on the 2011 and 2013 surveys, but has a larger impact on the catch limits derived ...

   Meeting Document : WG-FSA-17/51 : Auteur(s): T. Earl

8. Preliminary biomass estimation of Antarctic krill based on the swarm-based method for CCAMLR Division 58.4.1 in 2018/19 using data obtained by Japanese survey vessel Kaiyo-maru

   preliminarily estimated as 4.349 million ton (CV=54.8 %) based on the swam based method using data obtained by ... Kaiyo-maru. The point estimate was comparable with the estimate in 1996 by BROKE (4.83 million ton with ... different, (2) timing of the surveys were different (Kaiyo-maru survey commenced about 40 days earlier than ... especially in the western part of the Division. The CV of biomass estimate of Kaiyo-maru survey was high ...

   Meeting Document : SG-ASAM-2019/02 : Auteur(s): K. Abe, R. Matsukura, N. Yamamoto, K. Amakasu and H. Murase

9. Information on the CEP’S Antarctic site inventory

   Abstract:  In 2004, the Commission tasked the Secretariat to discuss with the Committee on ... Environmental Protection (CEP) the nature of available data from the Antarctic Site Inventory, and to invite ... consideration by appropriate Working Groups of whether the data would be of value to CCAMLR. Information about ... the data is presented for consideration by WG-EMM. Author(s):  Secretariat Title:  Information on the ...

   Meeting Document : WG-EMM-05/39 : Auteur(s): Secretariat

10. Preliminary analyses in support of the CEMP Review Workshop: serial correlations

    Abstract:  As part of the preliminary analyses undertaken in preparation for the CEMP Review ... Workshop, the Secretariat has documented serial correlation in time series of CEMP indices. The values ... input to the serial correlation analysis were the ‘transformed’ annual index values reported in WG-EMM ... -03/24. Serial correlation in biological indices occurred in 4, 10 and 33 % of the time series at ...

    Meeting Document : WG-EMM-03/27 : Auteur(s): Secretariat

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