Résultats de la recherche
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Update of ongoing work on age and growth of Antarctic toothfish (Dissostichus mawsoni) from Division 58.4.1 by Australia and Spain
Antarctic toothfish in this so called “data poor” area at the end of the whole experience. From the five ... Abstract: Spain and Australia are conducting fishing research in the 58.4.1 Division from 2013 ... surveys completed, the last two have been in coordination between the five proponents, namely Australia ... , Japan, Republic of Korea, France and Spain. Spain and Australia are working on the ageing and growth ...
Meeting Document : WG-FSA-18/54 Rev. 1 : Auteur(s): L.J. López-Abellán, M.T.G. Santamaría, R. Sarralde, S. Barreiro, B. Farmer and T. Barnes
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Preliminary assessment of mackerel icefish, Champsocephalus gunnari, in Subarea 48.3 using a length based population dynamics modelv
of the harvest control rule ensuring 75% escapement after a two year projection period yielded a ... Abstract: A length-based projection model is used to estimate catch limits for the 2011/12 ... fishing season for Champsocephalus gunnari in CCAMLR sub area 48.3. The model is initialised using ... estimated numbers at length derived from survey length density and biomass density data, removing the need ...
Meeting Document : WG-FSA-11/30 Rev. 1 : Auteur(s): R.E. Mitchell and S.M. Martin (United Kingdom)
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Do Adélie penguin fledgling weights provide an index of prey availability?
the end of the breeding season were more strongly correlated with later foraging trips than with ... between the two proxies was apparent when considering guard stage foraging trip durations but this was not ... as strong for the crèche foraging trips later in the season. Fledgling weights which are measured at ... earlier trips. We interpret these results as an indication of variable resources between the guard and ...
Meeting Document : WG-EMM-05/21 : Auteur(s): L. Emmerson, C. Southwell and J. Clarke (Australia)
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Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2019/20 by Japan, South Africa and Spain
species is expected to be done by the end of the 2020/21 season. Additional outcomes of the research ... 2013 to enhance data collection and analysis in the subarea 48.6. From the last season (2018/19) Spain ... has joined the proposal in order to contribute to the data acquisition and to speed up the integrated ... assessments of the D.mawsoni stock in this subarea (FSA-18/34). The continuation of the three-member research ...
Meeting Document : WG-SAM-2019/13 Rev. 1 : Auteur(s): Delegations of Japan, South Africa and Spain
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Beach debris surveys - Prince Edward Islands, 1993 to 1995
possible after the 1995/96 survey is completed. Author(s): Delegation of South Africa Title: Beach debris ... Abstract: Beach debris surveys conducted at the South African Prince Edward Islands are reported ... for the years 1993/1994 and 1994/1995, the latter period following the CCAMLR standard method for ... surveys of beached debris within the Convention area. Most non-wooden artefacts were plastic. Fishing ...
Meeting Document : CCAMLR-XIV/BG/14 : Auteur(s): Delegation of South Africa
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AMLR 2009/10 Field Season Report: objectives, accomplishments and conclusions
in length midway through the breeding season, and increased again toward the end of the season ... Abstract: The U.S. Antarctic Marine Living Resources (U.S. AMLR) field season completed it’s 24th ... season of a long-term series of studies of the Antarctic Peninsula ecosystem. Hydrographic results ... characterizing the waters around the South Shetland Islands indicate that several water masses converge in the ...
Meeting Document : WG-EMM-10/P12 : Auteur(s): A. Van Cise (Editor)
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Sources of variance in studies of krill population genetics
because of their ecological end economic importance. The possibility that there are distinct genetic ... Abstract: There is a long-term interest in the population genetics of Antarctic krill species ... stocks of these species would affect the design of management strategies for conserving them. A recent ... resurgence of interest in identifying distinct stocks of swarming krill species has been driven by the ...
Meeting Document : WG-EMM-01/12 : Auteur(s): S.N. Jarman and S. Nicol (Australia)
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Remarks on natural mortality of Dissostichus eleginoides in Subarea 48.3
subarea 48.3 (N=7848) after Sparre (1990) the natural mortality was calculated. The Von Bertalanffy ... Abstract: With samples originated in the Chilean longline fishery of Dissostichus eleginoides of ... the considered cases with the different growing parameters, with the exception of the case of fishing ... sites. By other hand, when comparing the different mean values of M for the different variables, it was ...
Meeting Document : WG-FSA-92/21 Rev. 1 : Auteur(s): C.A. Moreno and P.S. Rubilar (Chile)
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Sexual ratio of Dissostichus eleginoides from longlines samples: a partial indicator of reproductive migration in Subarea 48.3
males at size of first maturity join the female population. After the first week of June, the sex ratio ... Abstract: The examination of the sexual ratio of D. eleginoides between the first week of March ... and the third week of July 1996, in the subarea 48.3 shows that the sex ratio departs from the ... expected 1:l ratio being the females more abundant in the longline samples, except during May, when the ...
Meeting Document : WG-FSA-96/44 : Auteur(s): Moreno, C.A., Guerra, J., Zuleta, A.
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Two species of toothfish in two basic longline fisheries regions – Patagonian toothfish in Subarea 48.3 (South Atlantic) and Antarctic toothfish in Subareas 88.1 and 88.2 (South Pacific)
Abstract: Now after more then 30 years studies a most valuable commercial (target) species in the ... latitudes of the boundaries area distribution Patagonian and Antarctic toothfish. Our comparison Patagonian ... show to us any similar features in the distribution and biology but some different characteristics ...
Meeting Document : WG-FSA-05/71 : Auteur(s): K.V. Shust, E.N. Kuznetsova, A.N. Kozlov, N.V. Kokorin and A.F. Petrov (Russia)