Résultats de la recherche
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On the very high likelihood of bycatch of ice krill (Euphausia crystallorophias) in the present-day fishery for Antarctic krill (E. superba)
Abstract: During open discussions at the Third International Symposium on Krill (St Andrews ... , Scotland, June 2017) attended by representatives of the Association of Responsible Krill harvesting ... companies (ARK), the Marine Stewardship Council (MSC) and CCAMLR, it became apparent that no bycatch of Ice ... a condition of their fishing permits to report all bycatch. Since the present-day Antarctic krill ...
Meeting Document : WG-EMM-18/05 : Auteur(s): A.S. Brierley and R. Proud
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Estimation of the incidental capture of seabird species in commercial fisheries in New Zealand waters, 2000/01
Abstract: Ministry of Fisheries observers reported 1236 seabird captures from fishing operations ... novaezelandiae) trawl fisheries accounted for 94% of the 701 seabird captures in observed trawl fisheries ... . Observed incident rates in longline fisheries were highest in the ling longline fishery: 24% of observed ... ling autoline sets caught seabirds, compared with 6% of observed chartered tuna longline sets caught ...
Meeting Document : WG-FSA-04/55 : Auteur(s): S.J. Baird (New Zealand)
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Reproductive analysis of Dissostichus mawsoni in SSRU 5841C-a for the exploratory longline fishery in 2012/13 of Korea
Abstract: In the Division 58.4.1 there are two stocks of Dissostichus mawsoni, which is ... vulnerable with a big range of about 1,000-2,000 t per SSRU in 58.4.1. However, there is not enough data to ... analyze the reproductive ecology of Dissostichus mawsoni in SSRU 58.4.1C-a based on the histological ... methods as a part of Korean research plan for Dissostichus spp. in SSRUs 58.4.1 C and E during 2012/2013 ...
Meeting Document : WG-SAM-13/27 : Auteur(s): I.J. Yeon, J.S. Lee, Y.J. Kwon, M.A. Jeon, S.K. Choi, K.J. Seok, D.W. Lee, K.Y. Ku and H.J. Kim (Republic of Korea)
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Predation release of Antarctic silverfish in the Ross Sea: how sensitive is the conclusion to uncertainties in the diet of Antarctic toothfish over the shelf?
Abstract: Between 2001 and 2013 the number of breeding pairs of Adélie penguins (Pygoscelis ... adeliae) at breeding colonies in the southern Ross Sea more than doubled from about 235 000 to more than ... half a million. It has been suggested that predation release of Antarctic silverfish (Pleuragramma ... antarctica) due to fishing of one of its predators, Antarctic toothfish (Dissostichus mawsoni), could have ...
Meeting Document : WG-FSA-15/41 : Auteur(s): M.H. Pinkerton, P. O’B. Lyver, D.W. Stevens, J. Forman, R. Eisert and S. Mormede (New Zealand)
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A RISK ASSESSMENT TO ADVISE ON STRATEGIES FOR SUBDIVIDING A PRECAUTIONARY CATCH LIMIT AMONG SMALL-SCALE MANAGEMENT UNITS DURING STAGE 1 OF THE STAGED DEVELOPMENT OF THE KRILL FISHERY IN SUBAREAS 48.1, 48.2, AND 48.3.
Abstract: We used Foosa and the reference set of parameterizations developed by Watters et al ... . Implementation of Fishing Option 2 (using the subdivisions reported here) will require that the fishery mostly ... operate in pelagic SSMUs. Up to harvest rates of 0.5 x γ, this subdivision is unlikely to reduce predator ... populations to 75% or less of the abundances that might occur in the absence of fishing; the risks of such ...
Meeting Document : WG-EMM-08/30 : Auteur(s): G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)
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Stable isotope analysis of tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni) in the Ross and Amundsen Sea regions
Abstract: Stable isotopes of carbon and nitrogen (δ 15 N and δ 13 C) in Antarctic toothfish ... (Dissostichus mawsoni) muscle were measured to study the trophic connections of Antarctic toothfish in the Ross ... samples each of four by-catch species (grenadiers, icefish, moray cods and deep-sea cod) were also ... analysed, but only from the Ross Sea region. Appropriate corrections were made to account for the effect of ...
Meeting Document : WG-EMM-14/50 : Auteur(s): M.H. Pinkerton, S.J Bury, J.C.S. Brown, J. Forman and A. Kilimnik (New Zealand)
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Estimating the biodiversity and distribution of the northern part of the Kerguelen Islands slope, shelf and shelf-break for ecoregionalisation: benthos and demersal fish
, with 409 operations at depths ranging from 100 to 1000 m. The aim of SKALP and POKER was to investigate ... . However, few of them have collected benthic organisms. Between 1961 and 1970, numerous surveys were ... limited areas. However, they collected numerous specimens and led to a first estimate of the local ... biological diversity. The richest cruises for the quantity of benthos collected are MD03 and MD04 (1974 and ...
Meeting Document : WS-MPA-11/09 : Auteur(s): N. Améziane, M. Eléaume, P. Pruvost, G. Duhamel and Kerguelen group (France)
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The influence of bait quality on the sink rate of bait used in the Japanese longline tuna fishing industry: an experimental approach
Paper Title: The influence of bait quality on the sink rate of bait used in the Japanese longline ... determine the effects of bait size (large versus small) and bait condition (frozen versus thawed) on the ... sink rate of five species of bait used in the Japanese longline tuna fishery in Tasmanian waters. The ... effect of adding lead sinkers to baited hooks was also examined. While all factors (bait species, size ... of the swim bladders of fish, and was not known at the time of the experiments. To remove the ... hook is placed in a bait, the angle at which the shank of the hook protrudes from the fish, and the ... without standard deviation for the sake of simplicity. specimens of thawed aji-l (both sizes) sank at ... suppliers and may have been caught at different locations and/or at different times of the year. Some ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 123–129 : Auteur(s): Brothers, N., A. Foster and G. Robertson
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Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
Paper Title: Notes on the use of virtual population analysis for stock assessment of the mackerel ... Abstract / Description: Following on from the apparent failure of the CCAMLR Working Group on Fish Stock ... Assessment (WG-FSA) to satisfactorily assess in 1991 the status of the Champsocephalus gunnari population in ... -class (1 year olds in 1988), was quite robust, despite the use of various combinations of survey and ... to differences in the use of tuning data. Two VPA runs were made at WG-FSA-91, using the Laurec ... and performed at WG-FSA-91 provided a misleading representation of the current structure of the C ... of the VPA runs made at WG-FSA-91. Forwards projections to 1991/92 were made in an attempt to ... 'birthday' at the start of the split-year and the time of the survey used in Parkes (1991) (equation 1) was ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Auteur(s): Parkes, G.
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A generalised model for evaluating yield and the long-term status of fish stocks under conditions of uncertainty
Paper Title: A generalised model for evaluating yield and the long-term status of fish stocks ... under conditions of uncertainty Abstract / Description: This paper presents a general fish stock ... projection model for assessing the long-term annual yield which satisfies objectives for the maintenance of ... period and set a further constraint on the long-term status of the stock relative to the pre-exploitation ... up the number of fish in each age class at the start of the simulation period. Each age class is ... and spawning stock is calculated for each age class during the projection. At the completion of the ... fish in age class a at time of year t in year y. The term M.m(a + t ) gives the rate of natural ... mortality which applies to age class a at time of year t . M is the average rate of natural mortality ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 31–54 : Auteur(s): Constable, A. and W.K. de la Mare