Resultados de la búsqueda
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Integrated analyses of circumpolar climate interactions and ecosystem dynamics in the Southern Ocean (ICED)
the increasing need to develop integrated circumpolar analyses of Southern Ocean ecosystems. The long ... in the Southern Ocean, the implications for ecosystem dynamics, the impacts on biogeochemical cycles ... , and the development of management procedures. CCAMLR community scientists have been instrumental in ... procedures that include relevant aspects of the wider operation of ocean ecosystems. This document describes ...
Meeting Document : WG-EMM-06/26 : Autor(es): E.J. Murphy (United Kingdom), E. Hofmann (USA) and R. Cavanagh (United Kindom)
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A compilation of parameters for a krill–fishery–predator model of the Scotia Sea and Antarctic Peninsula
Abstract: We describe the compilation and derivation of parameters for use in krill-fishery ... -predator models of the Scotia Sea – Antarctic Peninsula region. The primary aim is to provide input for the ... model developed by Watters et al. (2006), which we use to define the required parameters. However, these ... parameters should be applicable to other models of the system. Our methods include the use of weighted ...
Meeting Document : WG-EMM-06/30 Rev. 1 : Autor(es): S. Hill, K. Reid, S. Thorpe (United Kingdom), J. Hinke and G. Watters (USA)
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Preliminary assessment of long-term yield of Patagonian toothfish (Dissostichus eleginoides) for the Heard Island region (CCAMLR Division 58.5.2) based on a random stratified trawl survey in June 2005
58.5.2 in the vicinity of Heard Island in June 2005 to provide the information for an assessment of short ... -term annual yield in the 2005/2006 CCAMLR season. This paper provides a preliminary assessment of yield ... for the area of Division 58.5.2 to the west of 79°20’ E using standard CCAMLR methods. It also ... considers the sensitivity of the assessment to (i) further consideration of the survey series and the ...
Meeting Document : WG-FSA-05/30 : Autor(es): A.J. Constable, T. Lamb and R. Williams (Australia)
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Notification of research-in-progress in an Australian tuna fishery of relevance to the conservation of Convention Area seabirds
Abstract: This purpose of this document is to inform CCAMLR of work-in-progress in the Australian ... eastern tuna and billfish fishery (ETBF) of potential relevance to the conservation of Convention area ... seabirds. The research plan includes (a) a line weighting experiment on a chartered tuna vessel to ... determine the effect of line weighting regimes and bait type on the sink rate of longlines. This experiment ...
Meeting Document : WG-FSA-05/13 : Autor(es): G. Robertson, B. Wienecke, K. Lawton and B. Baker (Australia)
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By-catch in the Australian fisheries in Division 58.5.2
Abstract: This paper presents bycatch information for the Australian fisheries in Divisions ... 58.5.2 for the 2003/2004 and 2004/2005 seasons. Bycatch in the trawl fisheries was low, generally less ... than 1% of the total catch (target plus bycatch). Higher percentage bycatch rates occurred in trawling ... grounds where the fishing effort and therefore target catch was low. Bycatch in the longline fisheries was ...
Meeting Document : WG-FSA-05/68 : Autor(es): E.M. van Wijk (Australia)
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Bird Island, South Georgia, during the 2002 winter and 2002/03 breeding season
Abstract: Results of the surveys of entanglement of Antarctic fur seals at Bird Island, South ... Georgia for the thirteenth consecutive winter (2002) and fifteenth consecutive summer (2001/02) are ... reported here. The overall number of entanglements showed a decrease from last year of 55% in winter and 67 ... %. Severe injuries accounted for 33% of entanglements over winter and 25% during the summer. As in previous ...
Meeting Document : SC-CAMLR-XXII/BG/11 : Autor(es): Delegation of the United Kingdom
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Exchange of wandering albatrosses Diomedea exulans between the Prince Edward and Crozet Islands: implications for conservation
Abstract: Exchange of 61 wandering albatrosses Diomedea exulans has been recorded between the ... French Crozet Islands and the South African Prince Edward Islands, 1 068 km apart in the Southern Ocean ... . Most movements of banded birds (57) have been westwards, from the Crozets to the Prince Edwards. In all ... only one fledgling from Marion Island has been recorded breeding on Possession. The wandering ...
Meeting Document : WG-EMM-03/41 : Autor(es): J. Cooper (South Africa) and H. Weimerskirch (France)
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Verification of the CMIX procedure on species with known age-length keys
surveys using the method of W.K. de la Mare (1994) is a conventional procedure in the WG-EMM and WG-FSA ... practice. Verification of the method was made on the materials on the Baltic cod collected in the ICES ... Subarea 26. Age-length keys for 1995-2001 and length frequency data obtained during the surveys carried ... the estimates of age composition proportions calculated using the CMIX method from those determined ...
Meeting Document : WG-FSA-SAM 03/5 : Autor(es): P. Gasiukov (Russia)
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Population structure of the Patagonian toothfish (Dissostichus eleginoides) in Australian waters
Abstract: MtDNA and microsatellite loci were used to investigate the population structure of ... McDonald Islands (CCAMLR area 58.4.2), four collections) in the Southern Ocean. Additionally, a small ... sample of toothfish from the Shag Rocks/South Georgia fishing location (CCAMLR area 48.3) was also ... examined. Striking mtDNA heterogeneity was detected among the three fishing locations; spatial and temporal ...
Meeting Document : WG-FSA-01/38 : Autor(es): S.A. Appleyard, R.D. Ward and R. Williams (Australia)
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Modifications to the Generalised Yield Model: updated input of recruitment time series data and annual fishing selectivity functions
Abstract: Revisions to the Generalised Yield Model provide for re-estimating the recruitment ... series from survey data for each value of natural mortality used in the assessments, whenever it is ... altered over the range of uncertainty in M factored into the assessment process. Data from outputs from ... mixture analyses from surveys are input to the GYM in raw form. An example file is provided. Consequently ...
Meeting Document : WG-FSA-01/74 : Autor(es): A.J. Constable (Australia)