Résultats de la recherche
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Size at sexual maturity of Patagonian toothfish (Dissostichus eleginoides)
Paper Title: Size at sexual maturity of Patagonian toothfish (Dissostichus eleginoides) Abstract ... / Description: Analyses of size at sexual maturity were undertaken on samples of Patagonian toothfish ... proportion, 25 to 43%, of sexually mature fish were not coming into spawning condition. This introduces a ... bias leading to the overestimation L m50 of calculated by conventional methods. Further analysis ... this paper, data from the observer program have been analysed to provide a clearer indication of the ... MATURITY OF PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) I. Everson and A. Murray British Antarctic ... Survey High Cross, Madingley Road Cambridge CB3 OET, United Kingdom Abstract Analyses of size at ... sexual maturity were undertaken on samples of Patagonian toothfish (Dissostichus eleginoides) caught in ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 37–46 : Auteur(s): Everson, I. and A.W. Murray
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Research currently being undertaken by the Republic of South Africa on "dependent and related species" within the Antarctic marine ecosystem
Paper Title: Research currently being undertaken by the Republic of South Africa on " ... components of the biological sciences programme are described. The primary objective of the studies being ... undertaken is to improve our understanding of the ecology of important predators (especially seals and ... --CAMLR-IV/BG/2 1985 RESEARCH CURRENTLY BEING UNDERTAKEN BY THE REPUBLIC OF SOUTH AFRICA ON "DEPENDENT ... AND RELATED SPECIES" WITHIN THE ANTARCTIC MARINE ECOSYSTEM Abstract Selected components of the ... biological sciences programme are described. The primary objective of the sudies being undertaken is to ... improve our understanding of the ecology of important predators (especially seals and seabirds) and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 59-77 : Auteur(s): South Africa
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On the power to detect changes using the standard methods for monitoring parameters of predatory species
of predatory species Abstract / Description: The CCAMLR guidelines (CCAMLR, 1989) for analyzing the ... Islands of lengths of first incubation shifts by penguins(Standard Method A2.1), duration of penguin ... of the power of Standard Methods A3.1, A5.1, C1.0, and C2.0 are proposed. File: 22-Boveng-and ... Paper Title: On the power to detect changes using the standard methods for monitoring parameters ... to detect changes. In the remainder of this paper, we first suggest several changes to the ... data to another paper evaluating the different types of analysis appropriate for proportions ... modifications we described above, is beyond the scope of this paper. We will use the data from Seal Island to ... STANDARD METHODS FOR MONITORING PARAMETERS OF PREDATORY SPECIES P. Boveng and J.L. Bengtson Abstract ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 377–397 : Auteur(s): Boveng, P. and J.L. Bengtson
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Status of the krill stock around Elephant Island in 1991/92 and 1992/93
Paper Title: Status of the krill stock around Elephant Island in 1991/92 and 1992/93 Abstract ... / Description: Krill stock composition and distribution patterns in the vicinity of Elephant Island during the ... austral summers of 1991/92 and 1992/93 are described and compared with information from previous years ... . The general distribution of krill length and maturity classes conformed to previous descriptions and ... and spring distribution fishery resources. FAO Fish. Tech. Pap., 171: and status of the krill stock ... CCAMLR Science, Vol. 1: 7-33 STATUS OF THE KRILL STOCK ... patterns in the vicinity of Elephant Island during the austral summers of 1991/92 and 1992/93 are ... described and compared with information from previous years. The general distribution of krill length and ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 7–33 : Auteur(s): Loeb, V. and V. Siegel
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Biology and harvesting of Dissostichus eleginoides around the Kerguelen Islands (Division 58.5.1)
Paper Title: Biology and harvesting of Dissostichus eleginoides around the Kerguelen Islands ... species in the fisheries of the Southern Ocean. In Division 58.5.1, a directed trawl fishery has been in ... operation since 1984/85 and has expanded in the deep western sector of the Kerguelen Shelf. This fishery ... harvests the sub-adult/adult part of the stock. Fishing effort and corresponding catches are very variable ... is becoming an increasingly important species in the fisheries of the Southern Ocean. In Division ... western sector of the Kerguelen Shelf. This fishery harvests the sub-adult/adult part of the stock ... harvestable resources of ChampsocephaZus gunnari. Vital biological information on population dynamics, as ... exploitation are discussed with respect to the development of fishing methods. Resume Dissostichus ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 85–106 : Auteur(s): Duhamel, G.
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A study of Patagonian toothfish (Dissostichus eleginoides) post-tagging survivorship in Subarea 48.3
Paper Title: A study of Patagonian toothfish (Dissostichus eleginoides) post-tagging survivorship ... survivorship of toothfish following tagging were carried out on eight different vessels fishing in Subarea 48.3 ... , fish with a variety of injuries were selected to see if this affected recovery. In the final analysis ... , 396 animals were included, with an overall survivorship of 90%. Smaller animals and animals in better ... study of PAtAgoniAn toothfish (Dissostichus eleginoiDes) Post-tAgging survivorshiP in subAreA 48.3 ... During the 2005 fishing season, experiments on the survivorship of toothfish following tagging were ... seawater replacement for at least 12 hours after tagging. On one vessel, fish with a variety of injuries ... an overall survivorship of 90%. Smaller animals and animals in better initial condition had a higher ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 279–289 : Auteur(s): Agnew, D.J., J. Moir Clark, P.A. McCarthy, M. Unwin, M. Ward, L. Jones, G. Breedt, S. Du Plessis, J. Van Heerdon and G. Moreno
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An iterative model to construct an age/length key to assess the age composition of a new fishery for Dissostichus eleginoides in Chilean waters
Paper Title: An iterative model to construct an age/length key to assess the age composition of a ... estimation of age composition of catch requires that age/length data and random length frequency have been ... sampled from the same population. If such sampling is not possible the estimates of the age distribution ... composition of catch for Dissostichus eleginoides was obtained with the application of a single age/length key ... estimation of age composition of catch requires that age/length data and random length frequency have been ... sampled from the same population. If such sampling is not possible the estimates of the age distribution ... composition of catch for Dissostichus eZeginoides was obtained with the application of a single age/length ... Diego Portales. BIBLIOGRAFIA AKAMINE, T. and Y. MATSUMIYA. 1992. Mathematical analysis of age-length ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 11–20 : Auteur(s): Robotham, V. H. and Z. Young U.
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Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea
Paper Title: Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the ... Ross Sea spanning the 2000–2009 fishing seasons. A characterisation of the oocyte developmental cycle ... of D. mawsoni shows that once development begins, oocytes grow and accumulate at the cortical alveoli ... least a 6–12 month period, resulting in a developed group of oocytes accumulating at the final ... biological characteristics of notothenioids to characterise reproduction in this species. This paper ... - AND AGE-AT-SPAWNING OF ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA S.J. Parker ... National Institute of Water and Atmospheric Research (NIWA) Ltd PO Box 893 Nelson, New Zealand Email ... seasons. A characterisation of the oocyte developmental cycle of D. mawsoni shows that once development ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 53–73 : Auteur(s): Parker, S.J. and P.J. Grimes
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Survey of Antarctic fur seals in the South Shetland Islands, Antarctica, during the 1986/87 austral summer
Paper Title: Survey of Antarctic fur seals in the South Shetland Islands, Antarctica, during the ... 1986/87 austral summer Abstract / Description: A survey of Antarctic fur seals in the South Shetland ... population recovery and recolonization of rookery sites following 19th Century commercial exploitation ... . Twelve fur seal pupping sites were identified, some of which had not previously been reported. The ... - 427 - SC-CAMLR-VI/BG/18 (WG-CEMP-87!7) SURVEY OF ... . 8engtson, L.M. Ferm, T.J. Harkonen, E.G. Schaner, 8.S. Stewart (USA, Sweden) Abstract A survey of ... that this species is continuing its population recovery and recolonization of rookery sites following ... 19th Century commercial exploitation. Twelve fur seal pupping sites were identified, some of which had ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 427-440 : Auteur(s): Bengtson, J.L., L.M. Ferm, T.J. Härkönen, E.G. Schaner and B.S. Stewart
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Interaction of marine mammals with the longline fishery around the Kerguelen Islands (Division 58.5.1) during the 1995/96 cruise
Paper Title: Interaction of marine mammals with the longline fishery around the Kerguelen Islands ... longliners fishing for Patagonian toothfish (Dissostichus eleginoides) to the west of the Kerguelen Islands ... ). These seals are responsible for the loss of 0.75 % of toothfish during the longline sets in which ... interaction occurred, as against 2.2 % of fish lost from the hooks during line hauling. File ... INTERACTION OF MARINE MAMMALS WITH THE LONGLINE FISHERY AROUND THE KERGUELEN ISLANDS (DIVISION 58.5.1 ... (Dissosfichus eleginoides) to the west of the Kerguelen Islands during the 1995/96 cruise and marine mammals ... occurred with the Antarctic fur seal (Auctocephalus gazella). These seals are responsible for the loss of ... 0.75 % of toothfish during the longline sets in which interaction occurred, as against 2.2 % of fish ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 171–174 : Auteur(s): Capdeville, D