Resultados de la búsqueda
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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 ... (Euphausia superba) between 1997 and present. Over the last five years proportional recruitment as been ... . Use of acoustic windows based on the range of krill size increases variability in biomass estimates ...
Meeting Document : WG-EMM-06/32 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 ... published suggest a relatively fast growing, semelparous, life history with a maximum age of 11 years. The ... strategy, and sex-specific distribution, and any trends in biomass is needed from the Ross Sea area and ...
Meeting Document : WG-FSA-12/50 : Autor(es): 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 ... Champsocephalus gunnari in the waters of Heard Island (Division 58.5.2) Approval: Approved ...
Meeting Document : WG-FSA-13/21 : Autor(es): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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Stock status and population assessment of the Antarctic starry skate (Amblyraja georgiana) in Subarea 48.3
Deficient” by IUCN (Endicott & Kyne 2009) and is one of the main by-catch species in the longline ... fishery for Patagonian toothfish (Dissostichus eleginoides) around South Georgia in the Southern Ocean ... . Information is lacking particularly in relation to catches, population trends, and taxonomic uncertainty ... . Using ten years of tag-recapture data collected around South Georgia, a comprehensive analysis of data ...
Meeting Document : WG-FSA-18/27 : Autor(es): M. Söffker, N.D. Walker, M. Belchier and J. Ellis
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Patagonian toothfish tagging study plan in the southwest Atlantic (FAO Area 41)
(Dissostichus eleginoides) in the Southwest Atlantic Ocean (FAO Area 41). Existing data on this species is ... extremely rare and incomplete in both study duration and geographic coverage. This proposal attempts to ... Patagonian toothfish over two fishing years. Since this work is highly exploratory and will represent one of ... in flexibly targeting specimens according to fish availability and fishing conditions. Our goal is to ...
Meeting Document : WG-SAM-2019/12 : Autor(es): C.H. Lam, K.J. Park, J. Lee and S.-G. Choi
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Interannual variation in the summer diet of Adélie penguin (Pygoscelis adeliae) at Edmonson Point
Island in 2001. Mean diet composition varied from year to year and between the two locations in 2001 ... , in the Ross Sea, Antarctica, to study the feeding ecology of this species for the Commission for the ... at Edmonson Point CEMP site over five years, 1995-97, 1999, 2001 and was extended to Inexpressible ... Edmonson Point. In the guard period, mean weight of food was lower at Inexpressible Island. Mean content of ...
Meeting Document : WG-EMM-04/38 : Autor(es): S. Olmastroni, F. Pezzo, I. Bisogno and S. Focardi (Italy)
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Age, growth and size at sexual maturity of Macrourus carinatus from the CCAMLR fisheries in division 58.5.2
samples collected during two research voyages to Heard and McDonald Islands (Division 58.5.2) in 1992 and ... 1993. The estimated range of ages was 4 – 25 years. von Bertalanffy growth parameters were calculated ... for both sexes combined, resulting in values of: L8 = 635 mm, K = 0.088 and t0 =-1.8. The size at ... operations in the Heard Island region in 2000. The size at which 50% of the fish population is mature, L50 ...
Meeting Document : WG-FSA-02/48 : Autor(es): E.M. van Wijk, R. Williams and A.J. Constable (Australia)
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Preliminary review of Antarctic toothfish maturity in the Ross Sea
condition, and diameter of their large oocytes was 1075- 2331•10-6m in different years. Author(s): S.V ... toothfish Dissostichus mawsoni caught by Russian longliners in the Ross Ross Sea of the Pacific sector in ... was established that in the period of fishing, females and males with gonads at maturity stage III ... in the Ross Sea the termination of gonad maturity of toothfish takes place from March to April, and ...
Meeting Document : WG-FSA-11/27 : Autor(es): S.V. Piyanova and A.F. Petrov (Russia)