Search results
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Reports on abundance and biological information on toothfish in Divisions 58.4.4a and 58.4.4b by Shinsei Maru No. 3 in 2011/12 season
. A total of 133 killer whales (Orcinus orca) were observed at the 30 hauls. All of whales observed ... during the survey in two SSRUs (B & C) of Ob Lena Bank. Total catch (excluding tagged and released ... fish) of Dissostichus eleginoides was 28.3 tonnes in the survey area in 70 longline sets, contributing ... 91.3 % to the total fish catch (31 tonnes). Mean CPUEs of D. eleginoides was in the SSRUs were 6.7 ...
Meeting Document : WG-SAM-12/16 : Author(s): K. Taki, T. Iwami, M. Kiyota and T. Ichii (Japan)
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Revised reports on abundance and biological information on toothfish in Divisions 58.4.4 a and 58.4.4b by Shinsei maru No. 3 in 2011/12
fish caught by trotline system. A total of 133 killer whales（ Orcinus orca ）were observed at the 30 ... biological information on toothfish in SSRU B and C of Division 58.4.4a & b (Ob Lena Banks) from April 15 ... to May 19, 2012. Total catch (excluding tagged and released fish) of Dissostichus eleginoides was ... 28.3 tonnes in the survey area in 70 longline sets. Mean CPUEs of D. eleginoides was 48.3 kg / km (CV ...
Meeting Document : WG-FSA-12/57 : Author(s): K. Taki, T. Iwami, M. Kiyota and T. Ichii (Japan)
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Monitoring Antarctic toothfish (D. mawsoni) recruitment in the southern Ross Sea
annual surveys have been conducted at a similar time of the year. The surveys caught mainly 70–110 cm ... Abstract: Knowledge of recruitment dynamics, and in particular trends in recruitment and ... recruitment variability, are key inputs for integrated assessments of fish stocks. A quantitative longline ... survey monitoring the recruitment of Antarctic toothfish (Dissotichus mawsoni) in the southern Ross Sea ...
Meeting Document : WG-FSA-17/57 : Author(s): S.M. Hanchet, S. Mormede, S. Parker, K. Large, A. Dunn and B. Sharp
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Distribution and possible areas of spatial mixing of two stocks of humpback whales, a krill predator, in the Indo-Pacific region of the Antarctic revealed by genetic analyses
Abstract: The main purpose of this study was to investigate the distribution and areas of mixing ... of two stocks of the humpback whale, a krill predator, in the Indo-Pacific region of the Antarctic ... stocks have shown sign of recovery after heavy commercial exploitation in the last century. Information ... on distribution and areas of mixing in the Antarctic feeding grounds is essential to assist the ...
Meeting Document : WG-EMM-2019/67 : Author(s): L.A. Pastene, M. Goto, M. Taguchi and K. Matsuoka
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The Patagonian toothfish: biology, ecology and fishery
habitat at around 100 mm (1 yr old), and inhabit relatively shallow water (< 200m) until 6-7 years of ... and slopes of South America and around the sub-Antarctic islands of the Southern Ocean. Patagonian ... scavengers, there is no evidence of large-scale geographic migrations and studies using genetics ... , biochemistry, parasite fauna and tagging indicate a high degree of isolation between populations in the Indian ...
Meeting Document : WG-FSA-10/P05 : Author(s): M.A. Collins, P. Brickle, J. Brown and M. Belchier
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Characterisation of the Antarctic polar frontal zone to the north of South Georgia in summer 1994
possibly of crucial importance to many predator species breeding at the northern end of South Georgia ... the northern edge of the Antarctic Circumpolar Current (ACC). In a number of areas the position of the ... also been implicated in the movement and retention of various associated mesoscale features. In this ... paper we examine the structure and position of the PF as it passes over the rugged bathymetry to the ...
Meeting Document : WG-EMM-97/40 : Author(s): Brandon, M.A., Trathan, P.N., Murphy, E.J.
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Do krill fisheries compete with macaroni penguins? Spatial overlap in prey consumption and krill catches during winter
both at the scale of the Scotia Sea and the local areas within which the fisheries operate. Main ... period as this is the only time of year when spatio-temporal overlaps between macaroni penguin foraging ... biomass of food consumed during the winter period. We combined these to produce a surface of the tonnes of ... krill consumed which could be compared directly with the spatial distribution of the tonnes of krill ...
Meeting Document : WG-EMM-14/02 : Author(s): N. Ratcliffe, S.L. Hill, I.J. Staniland, R. Brown, S. Adlard, C. Horswill and P.N. Trathan (United Kingdom)
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An integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2
eleginoides) fishery at the Heard Island and the McDonald Islands in CCAMLR Division 58.5.2 with data until ... end of July 2015. The updated assessment model is based on the best available estimates of model ... parameters, the use of abundance estimates from a random stratified trawl survey (RSTS), longline tag-release ... composition data to aid with the estimation of year class strength and selectivity functions of the trawl ...
Meeting Document : WG-FSA-15/52 : Author(s): P. Ziegler and D. Welsford (Australia)
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Results of the fourth CCAMLR sponsored research survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, February 2015 and further development of the time series
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... first three surveys were completed in February 2012, 2013, and 2014. In this paper we provide results of ... the fourth survey in the time series. The objectives of this survey were: (1) To carry out a longline ... of high sub-adult abundance that could be included as strata in future annual surveys. The 2015 ...
Meeting Document : WG-SAM-15/44 : Author(s): S.M. Hanchet, B.R. Sharp, S. Mormede, S.J. Parker (New Zealand) and M. Vacchi (Italy)
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Features of chronology and breeding success of Pygoscelis papua and Pygoscelis adeliae penguins in the Wilhelm Archipelago (CCAMLR Subarea 48.1)
of the Wilhelm Archipelago. It was observed that at the beginning of the ХХІ century the nesting ... Abstract: We aim to investigate the qualitative changes in the habitats of two most common ... (Adelie) penguins in the CCAMLR Subarea 48.1 under the impact of climate changes and krill fishery. To ... minimize the effect of human disturbance on the breeding success and survival of chicks and avoid ...
Meeting Document : WG-EMM-18/P13 : Author(s): I.V. Dykyy, G.P. Milinevsky, O.L. Savitsky, D.G. Lutsenko, P.B. Khoetsky, M.F. Veselsky, V.M. Smagol, A.O. Dzhulay, J.V. Tsaryk, K.M. Nazaruk, A.T. Zatushevsky, A.O. Simon and M.A. Telipska