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Managing fisheries to conserve the Antarctic marine ecosystem: practical implementation of the Convention on the Conservation of Antarctic Marine Living Resources (CCAMLR)
decimated in the first two years of the fishery following catches of about 500,000t. Two other species have ... problems in developing a program to monitor for the effects of fishing and the recent discussions on how to ... deep longlining for toothfish (Dissostichus eleginoides and D. mawsoni) has caused a resurgence of ... Antarctic arose primarily from concern over potential effects of a fishery for the very abundant Antarctic ...
Meeting Document : SC-CAMLR-XVIII/BG/26
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Further progress on modelling the krill–predator dynamics of the Antarctic ecosystem
to act as a surrogate for these in addition to the seals themselves. This results in an improved fit ... further work on the model is presented. The development of an improved set of abundance and trend ... Abstract: This paper addresses work conducted on the Mori-Butterworth multi-species model of the ... Antarctic ecosystem subsequent to the Ulsan meeting of the IWC Scientific Committee. Points raised about the ...
Meeting Document : WG-EMM-06/19 : Autor(es): M. Mori (Japan) and D.S. Butterworth (South Africa)
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Potential climate change effects on the habitat of Antarctic krill
Abstract: Antarctic krill is an obligate cold water species, an increasingly important fishery ... resource and a major prey item for many fish, birds and mammals in the Southern Ocean. The fishery and the ... assess the influence of projected warming on Antarctic krill habitat quality. The results divide the ... sector into two zones: A band around the Antarctic Circumpolar Current in which habitat quality is ...
Meeting Document : WG-EMM-13/20 : Autor(es): S.L. Hill, T. Phillips and A. Atkinson (United Kingdom)
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On necessity of longline fishery and research of Antarctic toothfish in all SSRUs of Subareas and Divisions 88.1, 88.2, 58.4.1, 58.4.2
Abstract: The analysis of catch size composition, statistical data on catches and distribution of ... SSRUs, open and closed for fishery, resulted in a lack of overall picture of population structure state ... , quantitative toothfish distribution over the whole aquatory in Divisions 88.1 and 58.4 and did not give an idea ... of toothfish migrations by tagging results. The mentioned system shortcomings require its revision ...
Meeting Document : WG-FSA-10/36 : Autor(es): K.V. Shust, A.F. Petrov, V.A. Tatarnikov and I.G. Istomin (Russia)
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Progress report of Chilean research on albatross ecology and conservation
two different management regimes. This fact and the article XI of the CCAMLR Convention, suggests the ... Abstract: Two species of albatross breed in Chile, namely Thalassarche melanophrys and T ... outcome of two research programs that are currently underway, which aim to establish if the effect of the ... research on albatross ecology and conservation Approval: Approved ...
Meeting Document : WG-FSA-02/18 : Autor(es): J. Arata and C.A. Moreno (Chile)
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Preliminary studies on age, growth and size at sexual maturity of Dissostichus eleginoides in the Ob-Lena Bank in the 2007/08 season
tended to overestimate for < 30 years, but underestimate for > 30 years, as compared to AAD readers ... thought to begin to mature, corresponded to 10.6 year for females and 11.4 year for males. On the other ... comments. The estimated ages ranged from 5 to 48 years for males and from 4 to 48 years for females. Ten to ... fifteen years gave large contribution to the total age groups for both sexes. Females grew at a faster ...
Meeting Document : WG-FSA-11/16 : Autor(es): K. Taki, T. Iwami and M. Kiyota (Japan)
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Educational poster on hook ingestion
large enough to swallow fish heads whole (SC-CAMLRR-XXI/BG/7). For example, in 2001/02 the scientific ... observer on the F/V Argos Helena estimated that >15,000 fish heads were discarded with hooks still in ... them. The hooks found in albatross colonies at South Georgia in years prior to 2001/02 were of the type ... Bird Island, South Georgia, have noted an increase in the occurrence of hook injuries to wandering ...
Meeting Document : WG-FSA-07/20 : Autor(es): G. Robertson (Australia)
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Report on the status of wandering, black-browed and grey-headed albatrosses at South Georgia
photography and subsequent counting on computer screen using Adobe Photoshop software. In total, an estimated ... %, respectively. However, comparison of annual totals for Bird Island, which was censused on both occasions mainly ... conducted in the mid 1980s, numbers of these two species appear to have decreased by 26% and 14 ... by ground counts, indicate more rapid declines: 4.0% p.a. from 1989/90-2003/04 for black-browed ...
Meeting Document : WG-FSA-04/71 : Autor(es): S. Poncet (United Kingdom),G. Robertson (Australia), R. Phillips (United Kingdom), K. Lawton (Australia), B. Phalan, J. Croxall and P. Trathan (United Kingdom)
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IMPLEMENTATION OF CCAMLR OBSERVER PROGRAM ON KRILL FISHERIES
Abstract: The aim of this document is to serve as an objective guideline to decide on an ... , together with haul-by-haul fine-scale data were used to identify the target SSMUs and the critical periods ... providing systematic observer coverage, with 100% vessel time coverage to ensure viable data collection. An ... urgent need for capacity building by all fishing nations is re-iterated so that a large number of ...
Meeting Document : TASO-09/07 : Autor(es): Kawaguchi, S.
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Population of macaroni penguins Eudyptes chrysolophus at Marion Island, 1994/95 to 2002/03, with information on breeding and diet
fledged on average 0.46 chicks per year, an amount thought insufficient to maintain the population ... , macaroni penguins usually breed for the first time when aged about three years. From 1994/95–2002/03, pairs ... from about 405 000 pairs in 1983/84 and 434 000 pairs in 1994/95 to about 356 000 pairs in 2002/03. Two ... large colonies, at Bullard Beach and Kildalkey Bay, account for about 85% of the overall population. At ...
Meeting Document : WG-EMM-03/15 : Autor(es): R.J.M. Crawford, J. Cooper and B.M. Dyer (South Africa)