Résultats de la recherche

1. Preliminary tag-recapture based population assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 48.4

   series and harvest rate of γ = 0.038, implies a 2019/20 yield of 45 tonnes using the 5-year average ... from tagging returns to average 1109 tonnes since 2010, with a five-year (2015-2019) average biomass of ... . The current method of assessment, based on tag returns, consequently, is considered to provide an ... Consent:  No Delegation responsibility for releasing documents:  United Kingdom ...

   Meeting Document : WG-FSA-2019/27 : Auteur(s): T. Earl and A. Riley

2. L'effet de la taille de l'échantillon sur la distribution des longueurs observée du krill antarctique

   Abstract:  The appropriate sample size for krill length measurement was raised during the WG-SISO ... :  Approved Secretariat Workflow Status:  Content Approved Delegation responsibility for releasing documents ...

   Meeting Document : SC-CAMLR-XXXVI/21 : Auteur(s): Delegation of China

3. On the consequences of differentiating between adult and sub-adult survival rates in the krill-predators model

   is unable to achieve compatibility with survival rate data for the Antarctic fur seal coupled to an ... split of the overall density dependence effect between the first year and following sub-adult years of ... Abstract:  The krill-predators model is generalised by splitting post-first-year animals into ... adults and sub-adults, with different survival rates for these two groups. Broadly speaking, the sub ...

   Meeting Document : WG-EMM-95/39 : Auteur(s): Butterworth, D.S., Thomson, R.B.

4. Advances are urgently needed in providing regular estimates of krill stock status based on the available data

   Abstract:  CCAMLR currently manages the krill fishery in subareas 48.1 to 48.4 using an arbitrary ... trigger level is not related to the status of the stock. The establishing terms of reference for WG-EMM ... include requests to “assess the status of krill” and “develop management advice … for management of krill ... the available data. Here, we briefly review some of the progress that CCAMLR working groups and the ...

   Meeting Document : WG-EMM-2019/28 : Auteur(s): S. Hill, J. Hinke, N. Ratcliffe, P. Trathan and G. Watters

5. Korean research plan in Subarea 88.3 in 2016/17

   results in an assessment of a stock in 3-4 years time (SC-CAMLR XXVIII, paragraphs 4.165). During the 2015 ... /16 season the Korean flagged vessel, Greenstar, conducted 1 st year research in this area. Total of ... 88.3 she did not find any recaptures of previous surveys. In second research year, the Greenstar is ... Secretariat Workflow Status:  Content Approved Delegation responsibility for releasing documents:  Korea ...

   Meeting Document : WG-SAM-16/11 : Auteur(s): Delegation of the Republic of Korea

6. VME detection thresholds: provision of a beta version of a R library to compute detection probabilities and preliminary results on the case of the sea pens (Pennatulacea) of the CCAMLR Division 58.4.4b

   CCAMLR SAM Working Group 2018. However, despite the important level of the catches, no VME detection ... threshold triggering out the establishment of an immediate fishing exclusion zone have been reached. Here ... Consent:  No Delegation responsibility for releasing documents:  France ...

   Meeting Document : WG-FSA-2019/46 : Auteur(s): A. Martin and M. Eléaume

7. Sampling toothfish from longlines with unequal probabilities

   observers are recommended to sample a quota of the first 30 fish that are caught during a sampling session ... unequal probabilities which, if unaccounted for, can lead to serious biases in estimates of population ... does not particularly matter if an observer starts sampling before or after the correct basket arrives ...

   Meeting Document : WG-FSA-03/85 : Auteur(s): J.R. Ashford (USA)

8. Anthropogenic feather soiling, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 2000/01

   for grey-headed albatrosses, but a 24% decrease from the maximum of the previous year for wandering ... . Quantities of fishing gear remained within the levels of previous years for all other species. Marine debris ... fishing gear associated with seabirds at Bird Island, South Georgia. In this, the eighth year of ... standardised recording, an unprecedented quantity of hooks (both with and without long-line attached)and ...

   Meeting Document : SC-CAMLR-XX/BG/07 : Auteur(s): Delegation of the United Kingdom

9. Beach debris survey – Main Bay, Bird Island, South Georgia, 1997/98

   which were considerably less than the winter totals for the previous 5 years of collections. The number ... Abstract:  The eighth year of surveys of beach man-made debris at Bird Island, South Georgia ... of items collected in the summer was 310, an increase of 72 percent from the 1996/97 total of 180 ... . Nylon line, identical to that attached to longline gear, accounted for 88 percent of items, nearly all ...

   Meeting Document : CCAMLR-XVIII/BG/6 : Auteur(s): Delegation of the United Kingdom

10. Whale depredation data collection guidelines

    depredation and for solutions to be developed, both locally and globally. Using the COLTO workshop as an ... across fisheries confronted with interactions with odontocetes is important for a better understanding of ... document aims to provide basic guidelines for observer programmes that are relatively new to dealing with ... Delegation responsibility for releasing documents:  France ...

    Meeting Document : WG-FSA-16/09 : Auteur(s): N. Gasco, P. Tixier, M. Söffker and C. Guinet

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