Search results
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Preliminary analysis of toothfish catch, CPUE, size structure and mark-recapture data from SSRUs 486A and 486G, with comments on the sustainability of different harvest levels
in Subarea 48.6 north of 60°S (the combined SSRUs 48.6A and 48.6G). A preliminary assessment for D ... . mawsoni in Subarea 48.6 south of 60°S (the combined SSRUs 48.6B through 48.6E) is given in an Appendix. An ... proportional to the mean length at that age. The model makes provision for IUU catches, insofar as this is ... possible given the available information. Actual assumptions are set out in this document. CPUE data are ...
Meeting Document : WG-FSA-12/31 : Author(s): E. Thomson and M. Bergh (South Africa)
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Research plan for the 2016/17 toothfish fishery in Division 58.4.4b by Japan and France
Abstract: Japan and France made the next season’s (2016/17) research plan in research blocks ... 58.4.4b_1 and 58.4.4b_2 using the updated CCAMLR C2 and Observer data. The estimated median stock size in ... -package tagr. The estimated median stock size in block 58.4.4b_1 and 58.4.4b_2 was 1 057, and 1 153 tonnes ... , respectively, in CPUE analogy method (reference area: northern area of Subarea 48.4) using the relevant ...
Meeting Document : WG-SAM-16/06 : Author(s): Delegations of Japan and France
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Proposal for an acoustic krill biomass survey in CCAMLR Subarea 48.1 in relation to the hydrological environment and in conjunction with carbon cycling and temperature adaptation experiments of krill and salps
Abstract: As part of the German contribution to Convention for the Conservation of Antarctic ... CCAMLR division 48.1 during April 2018. The survey will be part of a larger research cruise (PS112 ... ) investigating the role of krill and salps in Southern Ocean carbon cycling and the temperature adaptation ... capacities of both species in the context of climate change. Acoustic survey and physiological experiments ...
Meeting Document : WG-EMM-17/39 : Author(s): B. Meyer, L. Suberg, S. Fielding, O.R. Godø and C. Reiss
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Diet overlap among top predators at the South Orkney Islands, Antarctica
analyzed diet information on nine bird and two seal species collected in the austral summer from 1996 to ... 2000 at South Orkney Islands. Overall, the diet of most of the predators was mainly composed of krill ... , fish or penguins. The re-occurrence of prey among predators was intermediate and ranged from 25.3 to ... 36.7 and fish, krill and squid re-occurred most frequently. The re-occurrence of fish among predator ...
Meeting Document : WG-EMM-18/04 : Author(s): M.L. Bertolin and R. Casaux
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CEMP cameras data validation experiment at the Galindez Island gentoo penguin (Pygoscelis papua) colonies
Abstract: The two seasons of the data validation experiment provided for pictures from time-lapse ... cameras of the CEMP camera monitoring project of CCAMLR at Galindez Island gentoo (Pygoscelis Papua ... station (Galindez Island), GAI CEMP site, provided daily observations of 15 gentoo nests chosen in the ... . The results of visual observations have been compared with data from camera pictures, which registered ...
Meeting Document : WG-EMM-2019/59 : Author(s): P. Khoetsky, A. Dzhulai, V. Smagol, G. Milinevsky, I. Dykyy, A. Simon, M. Telipska, E. Dykyi, I. Parnikoza and L.Pshenichnov
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The CCAMLR Decision Rule, strengths and weaknesses
ecosystem-based fisheries management, the implications of climate change should be considered by its working ... groups. The robustness of CCAMLR’s tothfish management protocol, based on the Decision Rule, is evaluated ... by considering hypothetical, future changes in the fishery- stock interactions and the stock ... productivity which could result from climate change. The Decision Rule is demonstrated to be highly ...
Meeting Document : SC-CAMLR-38/15 : Author(s): Delegation of the United Kingdom
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Preliminary assessment of the South Georgia toothfish stock, 2007
Abstract: 1. The catch-at-length based CASAL model for toothfish at South Georgia is updated with ... data from the 2007 fishing season. The predicted spawning stock biomass and the yield is slightly ... higher than was estimated last year. 2. Improvements are made to the fit of tag data through (a ... estimates of catches at age from 1998 to 2006 (based on random sampling of the catch for age determination ...
Meeting Document : WG-FSA-07/29 : Author(s): D.J. Agnew, R. Hillary and J. Pearce (United Kingdom)
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Developing a carbon-budget trophic model of the Ross Sea, Antarctica: work in progress
Abstract: We report on the development of a carbon-budget trophic-model of the Ross Sea. We ... provisionally defined the food web of the Ross Sea as having the following functional compartments: birds, seals ... column, ice, and benthic). The simple trophic model requires well over a hundred parameters, each of ... organisms in the Ross Sea was used whenever available. Where no information in the literature was available ...
Meeting Document : WG-EMM-05/18 : Author(s): M. Pinkerton, S. Hanchet, J. Bradford-Grieve and P. Wilson (New Zealand)
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
Abstract: The current status of national surveys on monitoring of marine debris and their impact ... on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... at King George Island for the fourth consecutive year. There are now 4 sites that have data for more ... Islands). Marine debris, principally packaging items, fishing gear, and wood items, reached a peak in the ...
Meeting Document : SC-CAMLR-XXIII/BG/11 : Author(s): Secretariat
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Seabird mortality in the Japanese tuna longline fishery around Australia, 1988–1995
Abstract: Large numbers of seabirds are killed each year within the Australian Fishing Zone (AFZ ... ) by Japanese longline vessels targeting tuna. In recent years the estimated rate of seabird bycatch in ... the AFZ has been in the order of 0.15 birds 1000 hooks, translating to mortalities of 1000-3500 birds ... observed hauled aboard the vessels. The observed seabird catch rate varies annually, seasonally and ...
Meeting Document : WG-FSA-98/31 : Author(s): N. Brothers, R. Gales and T. Reid (Australia)