Search results
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Detailed distribution of krill fishing around South Georgia
only been available to the scientific community in the form of sub-area or fine-scale(0.5 ° latitude by ... has operated they do not reveal the localised nature of the fishing operation. In particular they give ... . Over the last three winter fishing seasons (1993-1995) haul by haul statistics have been recorded in ... a seasonal pattern. In 1994 the fishery was almost totally based over a large shallow bank area on ...
Meeting Document : WG-EMM-96/64 : Author(s): Parkes, G., Everson, I., Trathan, P.N., Murphy, E.J.
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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 ... to size via a simple von-Bertalanffy equation in which variance in catch-at-length for a given age 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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Sea ice characterisation of the proposed Ross Sea region Marine Protected Area Special Research Zone
has had on the fishery in the area during that time, and potential influences sea ice might impose on ... achieving the objectives of the proposed SRZ in the future. Based on historic satellite-derived sea ice ... in about half of the fishing seasons. Over the past 16 seasons, the SRZ was accessible to fishing in ... January in 8 seasons, open later (mostly after the fishery closed) and never completely cleared in 4 ...
Meeting Document : SC-CAMLR-XXXIV/BG/31 : Author(s): S. Parker, S. Hoyle, S. Hanchet and R.J.C. Currey (New Zealand)
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Mercury concentrations of five species of Antarctic fish collected from CCAMLR Subareas 88.1 and 88.2
(NZFSA). In contrast, mean levels of mercury for D. mawsoni were 0.10 mg/kg-1 in the 1998 samples and ... 0.16 mg/kg-1 in the 2006 samples, both of which are well below the permissible level. Mercury levels ... had been accounted for, the mercury levels in D. eleginoides were over four times greater than in D ... levels were positively correlated with fish length in four of the species. Mercury levels also showed ...
Meeting Document : WG-FSA-07/24 : Author(s): S.M. Hanchet, D.M. Tracey, A. Dunn, P.L. Horn and N. Smith (New Zealand)
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Antarctic icefishes (Channichthyidae) – a unique family of fishes – a review
Abstract: Icefish are a family of species unique among vertebrates in that they possess no ... haemoglobin. With the exception of one species, icefish live only in the cold – stable and oxygen – rich ... environment of the Southern Ocean. It is still questionable how old icefish are in evolutionary terms: they ... growth, are not unique and are comparable to other notothenioids living in the same environment. Icefish ...
Meeting Document : WG-FSA-04/10 : Author(s): K.-H. Kock (Germany)
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Conservation of Antarctic pack-ice seals with increasing krill fishing and environmental change
consumption in the West Antarctic Peninsula (WAP)-western Weddell Sea area, the main fishery region; and we ... consider long-term changes in suitable pack-ice habitat, increased fishing pressure and potential krill ... and in the entire area, over 3 million crabeater seals can consume over 12 million tonnes of krill ... krill. High seal densities where found in the small-scale fishery management areas of the WAP, where ...
Meeting Document : WS-MPA-11/24 : Author(s): J. Forcada, P.N. Trathan (UK), P.L. Boveng (USA), I.L. Boyd (UK), D.P. Costa (USA), M. Fedak (UK), T.L. Rogers and C.J. Southwell (Australia)
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Unusual breeding by seabirds at Marion Island during 1997/98
Abstract: In 1997/98, breeding at subantarctic Marion Island was exceptionally good for five ... Aptenodytes patagonicus chicks surviving to the start of spring in 1997 was considerably more than previously ... recorded, and more southern giant petrels M. giganteus did so than in any other year since 1994. For ... southern giant petrels, reproductive success was higher than in any other year, as was survival of chicks ...
Meeting Document : WG-EMM-03/13 : Author(s): R.J.M. Crawford, C.M. Duncombe Rae, D.C. Nel and J. Cooper (South Africa)
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Standing stock estimates of finfish biomass from the 2002 Polarstern bottom trawl survey around Elephant Island and the South Shetland Islands (Subarea 48.1) with some notes on the composition of catches taken north of Joinville Island – D’Urville Island
and the South Shetland Islands in January – February 2002 in close collaboration with the U.S ... results obtained in 1998 and 2001 for most species. Length compositions in the most abundant species ... resembled closely those in previous years. The proportion of juvenile G. gibberifrons, the most abundant ... species in the region, decreased significantly since 1998. No indication was found for the presence of a ...
Meeting Document : WG-FSA-02/24 : Author(s): K.-H. Kock (Germany), C.D. Jones (USA), J. Appel (Germany), G. von Bertouch (CCAMLR Secretariat), D.F. Doolittle (USA), M. la Mesa (Italy), L. Psenichnov (Ukraine), R. Riehl (Germany), T. Romeo (Italy), S. Schöling (Germany) and L. Zane (Italy)
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Ecosystem modelling for the Antarctic krill fishery
Abstract: Euphausia superba Dana (Antarctic Krill) has been recognized as a key forage species in ... the Antarctic ecosystem. This species serves as prey for many organisms in the ecosystem and has also ... but there is concern that the reduction in krill biomass due tome fishery may have impacts on other ... krill predators such as penguins, seals and whales. In order to evaluate the effects of krill fishing on ...
Meeting Document : WG-EMM-01/65 : Author(s): T. Antezana, J. Cornejo, E. Bredesen, P. Faundez (Chile), A.W. Trites and T. Pitcher (Canada)
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30 years of krill fisheries management – challenges remain
patterns, with catches concentrated recently in certain areas such as Subarea 48.1. Based on sea-ice ... reduction projections, concentrated catches in Subarea 48.1 during winter are expected to occur more ... concern since key spawning, recruitment and nursery areas of krill are located in the Southwest Atlantic ... sector, an area that has been warming rapidly, resulting in a reduction in the extent and duration of ...
Meeting Document : CCAMLR-XXX/BG/19 : Author(s): Submitted by ASOC