Résultats de la recherche
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Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass
). The krill yield model uses a biased estimate of SB0 with a method for correcting this bias in the ... of SB0 in the krill yield model compared to the unbiased estimate in the generalised yield model. The ... results show that the biased estimate of SB0 results in a biased estimate of the probability of critical ... bias in the krill yield model will result in the catch level, γ, given for a set probability of ...
Meeting Document : WG-EMM-97/45 : Auteur(s): de la Mare, W.K., Constable, A.J.
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Winter gut contents of the Antarctic krill (Euphausia superba Dana) collected in the South Georgia area
Abstract: Foregut contents of the Antarctic krill Euphausia superba Dana which were collected in ... the South Georgia area in austral winter, 12 July ~ 4 August 1992 were observed. A total of 130 ... were examined in this study. The foregut contents of the krill consisted of various fragments of ... crustacean zooplankton in 77 individuals out of 130 examined. Among the fragments a portion of the pereiopods ...
Meeting Document : WG-KRILL-93/30 : Auteur(s): Y. Nishino and A. Kawamura (Japan)
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Fishes caught along with the Antarctic krill in the vicinity of the South Georgia Island during the austral winter months of 1992
of 1992 (from July 9 to August 3) on board F/V No.3 and No.5 Chiyo Maru in the vicinity of the South ... found in 20 trawl catches. Among by-catch fishes, juvenile Lepidonotothen larseni was the most abundant ... (62 specimens; 93.9% in number; 58.9% of total weight of by-catch fish). Standard length (SL) of L ... ) were also found, but no other fish species was recognized in our by-catch samples. The abundance of ...
Meeting Document : WG-KRILL-93/51 : Auteur(s): T. Iwami (Japan)
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Notothenia (p.) gibberifrons Stock Status and TAC Estimation in the Area of Shag Rocks (Subarea 48.3)
the fact that in the 1986/1987 season the recruitment in the first age group was not less than long ... -term mean (5947 million specimens), the abundance of N. guntheri in 1987/77 was 152 thousand tons. Then ... the following TAC values were obtained: a) Fishing intensity (F) in the predicted period is equal to ... ) Fishing intensity in the predicted period is at the level of 1987/88; c) Fishing intensity in the ...
Meeting Document : WG-FSA-88/33 : Auteur(s): R. Borodin and K. Shust (USSR)
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An update on the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
status for the toothfish resource in the Prince Edward Islands region that were developed last year are ... a constant future catch suggest that the two scenarios will only be qualitatively distinguished in ... the short-term by an increase in the mean length of longline-caught toothfish over the next five years ... control rule based upon recent trends in both CPUE and this mean length is investigated. This MP is able ...
Meeting Document : WG-FSA-SAM-06/12 : Auteur(s): A. Brandão and D.S. Butterworth (South Africa)
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Preliminary results from the Argentine tagging program for the Patagonian toothfish in the south-western Atlantic
Abstract: A Tagging Program for Patagonian toothfish in the longline Argentine fishery outside ... migration of Patagonian toothfish in order to increase biological knowledge on the species and improve ... resource management in the South-Western Atlantic Ocean. The program started in 2004 and some 4900 juvenile ... Development (INIDEP). The chosen tag was an orange standard anchor T-bar tag, similar to those used in other ...
Meeting Document : WG-SAM-12/32 : Auteur(s): P.A. Martínez, J.A. Waessle and O.C. Wöhler (Argentina)
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Existing initiatives that provide an extensive framework for research and monitoring in East Antarctica
Abstract: Research and monitoring (RM) plans need to be developed for marine protected areas in ... projects and management expertise. In 2012, the Working Group on Ecosystem Monitoring and Management ... the Scientific Committee and Commission in the detailed structure of the plans. SC-CAMLR endorsed ... and monitoring should be achievable in practice. The proposal for the East Antarctica Representative ...
Meeting Document : SC-CAMLR-IM-I/BG/01 : Auteur(s): Delegations of Australia, France and the European Union
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Characterising catch and effort from data-poor toothfish fisheries in CCAMLR Divisions 58.4.3 – 58.4.4
effort in Divisions 58.4.4a, 58.4.4b, 58.4.3a and 58.4.3b is presented. Information analysed corresponds ... to fishing logbooks recorded in the exploratory fisheries carried out between July 2000 and March ... 2012. During this period, a total of 9 countries registered fishing operations in which 1811 sets were ... Bank) accumulated the highest proportion of allocated effort in which a total of 948 sets (52\%) were ...
Meeting Document : WG-SAM-13/41 : Auteur(s): J.C. Quiroz, R. Wiff (Chile) and P. Martinez (Argentina)
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A method to evaluate selection of Antarctic krill in towed fishing gears
Abstract: The pelagic trawlers involved in the fishery for Antarctic krill (Euphausia superba ... traditionally collected during timely and costly fishing experiments in the field where one design is tested at ... the morphology of the species in quest and the shapes of the relevant mesh types, to predict the size ... selectivity by mathematical modeling. After making modifications with the procedures in FISHSELECT to ...
Meeting Document : WG-EMM-13/34 : Auteur(s): L.A. Krag, B. Herrmann (Denmark), S. Iversen, A. Engås, S. Nordrum and B.A. Krafft (Norway)
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Inter-annual variability in krill density at South Georgia: 1997–2012
Abstract: Antarctic krill (Euphausia superba) are a key species in Southern Ocean ecosystems ... , maintaining very large numbers of predators, and fluctuations in their abundance can affect the overall ... structure and functioning of the ecosystems. The inter-annual variability in the abundance and biomass of ... krill was examined using a 15 year time series of acoustic observations undertaken in the Western Core ...
Meeting Document : WG-EMM-13/14 : Auteur(s): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)