Résultats de la recherche
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Seamount-specific biomass estimates from SSRU 88.2H in the Amundsen Sea derived from mark-recapture data
on almost every seamount in every year and usually in proportion to the level of tagging on the ... seamount in the previous year. Trends in local biomass estimates for individual seamounts and SSRU 88.2H ... Abstract: Mark-recapture data for Antarctic toothfish from individual seamount features in SSRU ... overall showed a decline in biomass through time with a slight increase in biomass since 2012. The pattern ...
Meeting Document : WG-FSA-14/58 : Auteur(s): S.J. Parker and S. Mormede (New Zealand)
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Analysis of the krill fishery in Subarea 48.1 considering trawl fishing method used (2010–2016)
Abstract: An analysis of spatio-temporal variability of CPUE indices in the krill fishery in ... in the Bransfield strait, where the main fishery in Subarea 48.1 is concentrated The possibility of ... krill biomass in SSMU during the fishing season is discussed. Variability of monthly average ... standardized CPUE estimates in the Bransfield strait shows that despite intensive fishery the density of krill ...
Meeting Document : WG-EMM-17/27 : Auteur(s): S. Kasatkina S. and L. Boronina
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Current work towards estimating krill consumption by flying seabirds in CCAMLR Divisions 58.4.1 and 58.4.2
parameter input values. We have conducted tracking work on four species in two regions over two years to ... Abstract: We describe current work to obtain krill consumption estimates for flying seabirds in ... estimating krill consumption by flying seabirds in CCAMLR Divisions 58.4.1 and 58.4.2 Approval: Approved ...
Meeting Document : WG-EMM-16/67 : Auteur(s): L. Emmerson and C. Southwell
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Foraging areas of black-browed and grey-headed albatrosses breeding on Macquarie Island in relation to marine protected areas
34 % of their time foraging in MPAs. 4. Black-browed and grey-headed albatrosses spent 30 % and 15 ... -order predators, there is a paucity of data that can be used to evaluate their efficacy in achieving ... this purpose. 2. We assessed the effectiveness of a network of MPAs around Macquarie Island in the ... Exclusion Zone around Macquarie Island. In contrast, grey-headed albatrosses (T. chrysostoma) spent on only ...
Meeting Document : WG-FSA-04/49 : Auteur(s): A. Terauds, R. Gales, G.B. Baker and R. Alderman (Australia)
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Proposal for an extension to the mark recapture experiment to estimate toothfish population size in Subarea 48.4
assessment of D. eleginoides stock size in the Northern Area of 48.4 estimates a vulnerable biomass of ... between 1,000 to 2,000 tonnes. 3. The UK proposes to continue the mark-recapture experiment in Subarea ... 48.4 in the 2008/09 fishing season so as to allow for a full assessment of D. eleginoides stock size in ... the Northern in 2009. 4. Additionally, the UK proposes to commence a mark-recapture experiment in the ...
Meeting Document : WG-FSA-08/46 : Auteur(s): J. Roberts and D. J. Agnew (UK)
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A review and update of krill biomass trends in the South Shetland Islands, Antarctica, using the simplified stochastic wave born approximation
Abstract: Using data collected from US AMLR surveys conducted in the South Shetland Islands we ... review the trends in biomass, size frequency distribution and proportional recruitment of Antarctic Krill ... . Use of acoustic windows based on the range of krill size increases variability in biomass estimates ... review and update of krill biomass trends in the South Shetland Islands, Antarctica, using the simplified ...
Meeting Document : WG-EMM-06/32 : Auteur(s): C.S. Reiss and A.M. Cossio (USA)
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The Status of the Champsocephalus gunnari Stock in the South Georgia Area
observed in recent years cannot be sustained. There is no clear relationship between the size of the ... statistical distribution of recruitment. Data obtained during the UK/Polish survey around South Georgia in ... March 1989, were included in the study. Results indicate that the current biomass level of the C ... Kingdom) and W. Ślósarczyk (Poland) Title: The Status of the Champsocephalus gunnari Stock in the South ...
Meeting Document : WG-FSA-89/8 Rev. 1 : Auteur(s): M. Basson, J. Beddington (United Kingdom) and W. Ślósarczyk (Poland)
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MITIGATION OF SEABIRD CAPTURES DURING HAULING IN CCAMLR LONGLINE FISHERIES
Abstract: In recent years there has been an increased focus on reducing ‘residual’ seabird ... captures that occur during hauling in CCAMLR longline fisheries. Haul captures were first recognised by ... three types and recommendations are made on a Type III BED that was developed in Division 58.5.2 and ... Kingdom) Title: MITIGATION OF SEABIRD CAPTURES DURING HAULING IN CCAMLR LONGLINE FISHERIES Approval ...
Meeting Document : WG-IMAF-09/14 : Auteur(s): E. Reid, B. Sullivan (BirdLife International), K. Reid (Secretariat) and J. Clark (United Kingdom)
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Characterisation of Muraenolepis species by-catch in the CCAMLR Convention Area
Abstract: Muraenolepis species are caught in low numbers with bottom longline and trawl gears ... throughout the CCAMLR Convention Area. There are seven known species in the genus, but more work on the ... strategy, and sex-specific distribution, and any trends in biomass is needed from the Ross Sea area and ... : Characterisation of Muraenolepis species by-catch in the CCAMLR Convention Area Approval: Approved ...
Meeting Document : WG-FSA-12/50 : Auteur(s): S. Parker, P. McMillan and P. Marriott (New Zealand)
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The 2013 annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the waters of Heard Island (Division 58.5.2)
invertebrates. Catches of individual invertebrate taxa were generally much lower than in previous years. Lengths ... Lepidonotothen squamifrons lower than average. Skate catches in 2013 were slightly higher than the average RSTS ... take. The catch of invertebrates in the 2013 survey was 6 t, which was lower than the long term average ... . This year there was a large abundance of jellyfish (Cnidaria) which formed about half of the catch of ...
Meeting Document : WG-FSA-13/21 : Auteur(s): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)