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)

   and WG-FSA-16/33 Rev. 1) for a period of 5 years. The proposal submitted here has been substantially ... part of 58.4.4b_2 (WG-FSA-18/23) and a new French vessel has joined the research plan to increase ... -19, while the main concerns regarding objective 2 (“ Provide an assessment of the status and ... productivity of Patagonian toothfish stock ”) and 5 (“ Contribute to scientific research programs on killer ...

   Meeting Document : WG-SAM-2019/08 : Auteur(s): Delegations of Japan and France

2. Estimating confidence intervals for fish stock abundance estimates from trawl surveys

   estimates of abundance obtained from trawl surveys conducted by means of the swept area method, using ... likelihood ratios from Aitchison's delta distribution. Simulation tests of the method show that unbiased ... estimates of density and biomass can be obtained and that the estimated confidence intervals have close to ... the nominal coverage probability. Performance deteriorates in cases where few of the hauls contain ... statisticians. This paper addresses some of the statistical issues which are of concern in the analysis of ... intervals. This is a brief overview of some of the results to be presented in a more substantial paper on ... Mean CV P Density first draft of this paper. All the possible combinations of these three strata ... calculating asymptotic confidence intervals for estimates of abundance obtained from trawl surveys conducted ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 203–207 : Auteur(s): de la Mare, W.K

3. Fish stock assessment survey in Subarea 48.3

   fish survey in the vicinity of South Georgia, CCAMLR Subarea 48.3, is described. Details are given of ... positions of hauls, catch rates and size composition of catches. The standing stock of one of the most ... Paper Title:  Fish stock assessment survey in Subarea 48.3 Abstract / Description:  A demersal ... separate paper (Everson et al., 1991). 4.6 Stomach Contents The level of stomach fullness from samples ... Abstract A demersal fish survey in the vicinity of South Georgia, CCAMLR Subarea 48.3, is described ... . Details are given of positions of hauls, catch rates and size composition of catches. The standing stock ... of one of the most important commercial species in the area, Champsocephalus gunnari, is shown to ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 25–67 : Auteur(s): Everson, I., G. Parkes, K.-H. Kock, S. Campbell, Z. Cielniaszek and J. Szlakowski

4. WS-VME-09

   List of participants WS-VME-09/03 List of documents WS-VME-09/04 PHYSICAL CONTROLS ON CORAL COMMUNITIES ... , A.L., O’Brien, P.E. WS-VME-09/05 ANALYSIS OF VME DATA COLLECTED BY UK VESSELS FISHING IN THE ROSS SEA ... GENETIC CONNECTIVITY TO IDENTIFY VULNERABLE MARINE ECOSYSTEMS (VMES) IN ANTARCTICA – THE ISSUE OF SCALE ... Wilson, N.G. WS-VME-09/07 IS THE BYCATCH OF VULNERABLE INVERTEBRATE TAXA ASSOCIATED WITH HIGH CATCH RATES ...

   Meeting

5. The Kerguelen database

   and biological data for the Kerguelen EEZ has been operating in France since 1979. At the end of the ... representation of these data is presented for several parameters including a distribution of the fishing effort ... , position of individual trawls, total catches and catch per species. Four species (Champsocephalus gunnari ... , Notothenia squamifrons, N. rossii and Dissostichus eleginoides) represent about 99% of the total catches ... been operating in France since 1979. At the end of the 1984/85 fishing season, the data from 25445 ... trawls had been entered into the database. A graphical representation of these data is presented for ... several parameters including a distribution of the fishing effort, position of individual trawls, total ... and Dissostichus eleginoides) represent about 99% of the total catches. Length frequency ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 23-54 : Auteur(s): Duhamel, G.

6. A feedback management strategy for the krill fishery in Subarea 48.1

   Abstract:  We present a Stage-2 strategy for in-season feedback management (FBM) of the krill ... fishery in Subarea 48.1.  This strategy is a combination of two strategies that were separately proposed ... to the WG-EMM in 2015 and is based on a broad foundation of work undertaken to address a suite of ... action items specified by the WG-EMM.  A decision rule to adjust catches in groups of SSMUs (gSSMUs) is ...

   Meeting Document : WG-EMM-16/48 : Auteur(s): G.M. Watters, J.T. Hinke and C.S. Reiss

7. Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea, Antarctica

   , meristics, reproductive biology, diet and age estimation. All of the icefish sampled were identified as ... between December and February, but this was limited, probably due to the short temporal distribution of ... the data. Length-at-maturity and age-at-maturity ogives indicated that 50% of the fish sampled were ... mature at about 340–360 mm total length (TL) and about 3–4 years of age, and that 95% were mature at ...  National Institute of Water and Atmospheric Research (NIWA) Ltd PO Box 893 Nelson, New Zealand Email ... – c.sutton@niwa.co.nz M.J. Manning, D.W. Stevens and P.M. Marriott National Institute of Water and ... , diet and age estimation. All of the icefish sampled were identified as Chionobathyscus dewitti, and ... February, but this was limited, probably due to the short temporal distribution of the data. Length-at ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 139–165 : Auteur(s): Sutton, C.P., M.J. Manning, D.W. Stevens and P.M. Marriott

8. Estimating by-catch from CCAMLR data

   Abstract:  Quantifying the catch rates and biomass of by-catch species on CCAMLR’s fishing grounds ... is an essential component of the assessment advice prepared by WG-FSA. However, such analyses are ... problematic because the CCAMLR datasets are incomplete and have a high occurrence of ‘missing catch values’. A ... method to treat ‘missing catch values’ using estimates derived from the mean weights of by-catch species ...

   Meeting Document : WG-FSA-SAM-05/4 : Auteur(s): Secretariat

9. Conserving seabirds competing with fisheries for food – observations from southern Africa and Marion Island

   Abstract:  The paper describes moves towards accounting for the food requirements of some of ... southern Africa’s seabirds in management of pelagic fish stocks. It also considers moves towards ... establishing target populations for seabirds in South Africa, especially those of conservation concern. It ... describes anomalous breeding by several species of seabird at Marion Island in 1997. These are assumed to ...

   Meeting Document : WG-EMM-02/26 : Auteur(s): R.J.M. Crawford, C.M. Duncombe Rae and D.C. Nel (South Africa)

10. Catch Uncertainty in Krill Fisheries

    Abstract:  Catch uncertainty is a component of uncertainty that is not routinely considered by ... reported catch of 600 000t could actually represent a catch in ‘green weight’ of 2.5 million tonnes ... . Quantifying the level of uncertainty in reported catches of krill would require information on product ... well as the product composition of catches. Author(s):  Secretariat Title:  Catch Uncertainty in Krill ...

    Meeting Document : WG-EMM-08/46 : Auteur(s): Secretariat

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