Search results
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Assessment of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3
Abstract: Assessment of the Patagonian toothfish (D. eleginoides) in Subarea 48.3 indicates that ... the current status of the stock is at 50% of B 0. Spawning biomass has been relatively constant in ... recent years. Projections indicate that a constant catch of 2,420 tonnes in the 2020 and 2021 seasons ... would be consistent with the CCAMLR decision rule. Author(s): T. Earl Title: Assessment of Patagonian ...
Meeting Document : WG-FSA-2019/28 : Author(s): T. Earl
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Relationships between distribution of two euphausiid species and oceanographic characteristics in the Ross Sea (January–February 2000)
average length estimated, by means of the three-frequency method, based on the fluid sphere model. Net ... samples were considered the ground truth data, being compared to the acoustic estimates of krill species ... first time a detailed description of the krill distribution in the Ross Sea area related to ... oceanographic characteristics. Horizontal distribution of krill average biomass is showed separately for each ...
Meeting Document : WG-EMM-02/38 : Author(s): A. Russo, M. Azzali, E. Biffi, G. Lanciani and E. Paschine (Italy)
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Distribution and ecology of Chaenocephalus aceratus (Channichthyidae) around South Georgia and Shag Rocks (Southern Ocean).
Abstract: Chaenocephalus aceratus (Family Channicthyidae) is one of the dominant species of ... Rock shelves although few fish were caught at Shag Rocks. Analysis of length frequency data indicated ... of 440 mm TL and 520 mm TL. The diet was comprised of fish and crustaceans, with an ontogenetic shift ... different from the other species of channichthyids around South Georgia to suggest that these species have ...
Meeting Document : WG-FSA-07/P5 : Author(s): W.D.K Reid, S. Clarke, M.A. Collins and M. Belchier. (Polar Biol., 30 (12): 1523–1533 (2007))
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A study of Patagonian toothfish (Dissostichus eleginoides) post tagging survivorship in Subarea 48.3
Abstract: During the 2005 fishing season experiments on the survivorship of post-tag toothfish ... , and then were kept in tanks with varying degrees of seawater replacement for at least 12 hours after ... tagging. On one vessel fish with a variety of injuries were selected to see if this affected recovery. 395 ... animals were included in the final analysis, with an overall survivorship of 89%. There were significant ...
Meeting Document : WG-FSA-05/19 : Author(s): D. J. Agnew, J. Moir Clark, P.A. McCarthy, M. Unwin, M. Ward, L. Jones (United Kingdom), G. Breedt, S. Du Plessis, J. Van Heerdon (South Africa) and G. Moreno (Spain)
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Fine-scale genetic investigation into Patagonian toothfish structure within the west Indian Ocean sector of the Southern Ocean
Abstract: Molecular markers were employed to investigate the fine-scale stock structure of ... Patagonian toothfish in the west Indian Ocean sector of the Southern Ocean. Four collections of toothfish ... genetically using two fragments of mtDNA and seven nuclear microsatellite loci. MtDNA haplotype diversity was ... sub-structuring among the collections. Genetic variance estimates of both mtDNA (?ST=-0.016) and ...
Meeting Document : WG-FSA-03/66 : Author(s): S.A. Appleyard, R. Williams and R.D. Ward (Australia)
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Revised research plan for the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2: Fundamentals and procedures (this is a revision of WG-SAM-12/13)
Abstract: A revision of the research plan for the Spanish exploratory longline fishery for ... suggestions made by the Working Group is presented. Two methods to estimate the local biomass of the toothfish ... are proposed, a depletion experiment together with the tag of some specimens using the DeLury model ... with four different scenarios related to the extent of the area. The regression coefficients between ...
Meeting Document : WG-FSA-12/69 : Author(s): R. Sarralde, L.J López Abellán and S. Barreiro (Spain)
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Congruent, decreasing trends of Gentoo Penguins and Crozet Shags at sub-Antarctic Marion Island suggest food limitation through common environmental forcing
Abstract: Numbers of Gentoo Penguins Pygoscelis papua and Crozet Shags Phalacrocorax [atriceps ... ] melanogenis breeding annually at Marion Island, one of South Africa’s Prince Edward Islands in the south-west ... -2000s were associated with improved breeding success. At a colony of Gentoo Penguins, breeding success ... was negatively correlated with the date of arrival of adults to breed. Gentoo Penguins and Crozet ...
Meeting Document : WG-EMM-14/P09 Rev. 1 : Author(s): R.J.M. Crawford, B.M. Dyer, L. Upfold and A.B. Makhado
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Progress report of the CEMP Special Fund overwinter penguin tracking project
Abstract: We provide a brief update on the progress of our project “Tracking the overwinter ... habitat use of krill-dependent predators from Subarea 48.1”. The project was initiated with support from ... the CEMP Special Fund in 2015/16. With the assistance of the Secretariat, we purchased 150 ARGOS-based ... tags). Data collection continues for one juvenile penguin and 50 adult penguins as of 13 June 2017. In ...
Meeting Document : WG-EMM-17/07 : Author(s): J. Hinke, G. Watters, M. Santos, M. Korczak-Abshire, G. Milinevsky and V. Lytvynov
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The use of Port State measures to improve fisheries compliance at the international levelIssues and instruments – the CCAMLR case
approaches to port State control in order to avoid the development of “ports of convenience” and improve ... fisheries compliance. Possible approaches include the development of regional Memoranda of Understanding ... ) fishing. CCAMLR is generally regarded as a good regional model in the area of port State control. Hence ... , to encourage the application of similar approaches in those Regional Fisheries Management ...
Meeting Document : CCAMLR-XXV/BG/29 : Author(s): Submitted by ASOC
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The diet of the blue-eyed shag, Phalacrocorax atriceps bransfieldensis at the west Antarctic Peninsula
Abstract: The diet of the Antarctic Blue-eyed Shag Phalacrocorax atriceps bransfieldensis was ... analyzed based on the identification of the prey items in 50 regurgitated casts collected at Duthoit Point ... . Fish remains occurred in 100% of the casts and represented 68% by number and 90% by weight of the total ... prey items. From a total of 2112 otoliths found, 1176 fish specimens were identified belonging to 4 ...
Meeting Document : WG-CEMP-93/26 Rev. 1 : Author(s): R. Casaux and E. Barrera-Oro (Argentina)