Résultats de la recherche
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COLTO and Science Workshop
Author(s): Submitted by COLTO Title: COLTO and Science Workshop Approval: Approved Secretariat Workflow Status: Content Approved Document Release Consent: Yes Delegation responsibility for releasing documents: CCAMLR Secretariat
Meeting Document : SC-CAMLR-XXXIV/BG/20 : Auteur(s): Submitted by COLTO
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Beach litter survey - Signy Island, South Orkney Islands 1995/96
81 items (6.23 kg). No items were found at Starfish Cove. As in previous years, it is clear that ... was cleared from three study beaches, Foca Cove, Cummings Cove and Starfish Cove, in January and ... identified as originating from the research station. The 1995/96 survey data show a reduction in both the ... monthly surveys carried out during January 1995/96, 1993/94, 1992/93 suggests that the reduction found in ...
Meeting Document : CCAMLR-XV/BG/16 : Auteur(s): Delegation of the United Kingdom
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Responding to climate change: Adélie penguins confront astronomical and ocean boundaries
Sensors affixed to penguins each year at both Cape Royds and Cape Crozier in 2003-2005. Migrations ... latitudes for the remainder of the year. The latitudinal range of the Adélie penguin spans ~22o. Penguins ... that Adélies require both pack ice and some ambient light at all times of year. Over a 3-yr period ... averaged 12,760 km, with the longest being 17,600 km, and were in part facilitated by pack ice movement ...
Meeting Document : WG-EMM-10/P11 : Auteur(s): G. Ballard, V. Toniolo, D.G. Ainley, C.L. Parkinson, K.R. Arrigo and P.N. Trathan
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Updating the Antarctic krill biomass estimates for CCAMLR Subareas 48.1 to 48.4 using available data
Abstract: We present a novel index of Antarctic krill biomass in CCAMLR subareas 48.1 to 48.4 ... variation was significant (CV=73%) but no systematic change in krill biomass was evident during the period ... also suggest that exploitation rates are low and that there is no evidence of a systematic change in ... . It also suggests that the catch levels seen in the first decade of the 21st century are unlikely to ...
Meeting Document : WG-EMM-15/28 : Auteur(s): S. Hill, A. Atkinson, C. Darby, S. Fielding (United Kingsom), B. Krafft, O.R. Godø, G. Skaret (Norway), P. Trathan, J. Watkins (United Kingdom)
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A proposal for a CCAMLR vessel monitoring system
available expertise in the design and implementation of satellite-based vessel monitoring of several CCAMLR ... implementation, which should be taken into account by the Commission in taking a decision on the establishment of ... operational, would take approximately from 1.5 to 2 years Author(s): Secretariat Title: A proposal for a ...
Meeting Document : CCAMLR-XIV/14 : Auteur(s): Secretariat
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Monitoring and managing the effects of environmental change on toothfish assessments
CCAMLR’s fishery reports may be revised to include a new section on changes in model parameters and ... environmental variability and change. We note that causal relationships between observed changes in stock ... consideration of changes in biological parameters and work to understand the impact of these changes on yield ... assessment would reduce uncertainty in management advice. The parameters that could be evaluated to for the ...
Meeting Document : WG-SAM-18/22 : Auteur(s): M. Pinkerton, A. Dunn, S. Mormede and S. Parker
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Mackerel icefish size and age at South Georgia and Shag Rocks
in the Southern Ocean have supported a fishery since the 1970s. This study has analysed the length ... between 1987 and 2002. Most surveys were between December and February (summer), with one in September ... (Spring). Mean total lengths (TL) of age-classes were determined for each year by examining length ... modality in the length-frequency distributions. Lengths of age-classes derived by these two methods were ...
Meeting Document : WG-EMM-03/7 : Auteur(s): A.W. North (United Kingdom)
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The ‘CAML/SCAR-MarBIN Biogeographic Atlas of the Southern Ocean’
19 CAML-dedicated cruises in the whole Southern Ocean, and following the intense compilation efforts ... (benthos, plankton, nekton, birds and seals) south of 40°S. The hard copy version in large format will be ... comparative biogeographic analyses or discovering marine biodiversity hotspots. At the end of five years of ...
Meeting Document : WS-MPA-11/15 : Auteur(s): C. De Broyer (Belgium) and P. Koubbi (France)
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A von Bertalanffy growth model for Division 58.5.2 fitted to length-at-age data and a comparison of predicted with observed growth from mark–recapture data
years old) to the VB model is also given in order to give more realistic predictions of mean length-at ... trawl in Heard Island fishery were fitted using a von Bertalanffy (VB) growth model taking into account ... being a sharp decline in selectivity from 100% at 1000 mm down to 1% by 1600 mm. The VB curve fitted to ... relative to those for the LF sample were also included in defining relative probabilities, the VP maximum ...
Meeting Document : WG-FSA-SAM-06/07 : Auteur(s): S.G. Candy, A.J. Constable, T. Lamb and R. Williams (Australia)
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Distribution and abundance of skates (Bathyraja spp.) on the Kerguelen Plateau through the lens of the toothfish fisheries
decline in catch rate over the years of the HIMI fishery. Although all skates are returned to the water ... as incidental by-catch in Patagonian toothfish (Dissostichus eleginoides) longline and trawl ... fisheries, and the mackerel icefish (Champsocephalus gunnari) trawl fishery on the Kerguelen Plateau (KP) in ... mainly with depth. Off Heard Island and McDonald Islands (HIMI), in the southern part of the KP, B ...
Meeting Document : WG-FSA-16/P03 : Auteur(s): G.B. Nowara, P. Burch, N. Gasco, D.C. Welsford, T.D. Lamb, C. Chazeau, G. Duhamel, P. Pruvost, S. Wotherspoon and S.G. Candy