Search results
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To what extent do type C killer whales (Orcinus orca) feed on Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica?
Abstract: Information on type C killer whales in the Ross Sea region is reviewed, in particular ... potential for foraging innovation) means that they are particularly vulnerable to changes in the ecosystem ... . It is also possible that changes in killer whale feeding can affect the structure and stability of ... item for type C killer whales in the Ross Sea: (1) type C killer whales near McMurdo Sound have been ...
Meeting Document : WG-EMM-13/29 : Author(s): L. Torres, M.H. Pinkerton (New Zealand), R. Pitman, J. Durban (USA) and R. Eisert (New Zealand)
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Growth of mackerel icefish (Champsocephalus gunnari) and age-size composition of populations in subarea of South Georgia
Abstract: Age, growth rate and age composition of icefish catches in subareas 48.3, 48.2, 48.1 ... were studied for different periods. The analysis of age composition of icefish in subarea 48.3 showed ... represented by fish of two contiguous age groups. It was shown that in the 1980s during a number of years the ... class in subarea 48.3 depends on many factors, among which it it difficult to determine the most ...
Meeting Document : WG-EMM-03/60 : Author(s): K.V. Shust and E.N. Kuznetsova (Russia)
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Growth of mackerel icefish (Champsocephalus gunnari) and age-size composition of population in subarea of the South Georgia
Abstract: Age, growth rate and age composition of icefish catches in subareas 48.3, 48.2, 48.1 ... were studied for different periods. The analysis of age composition of icefish in subarea 48.3 showed ... represented by fish of two contiguous age groups. It was shown that in the 1980s during a number of years the ... class in subarea 48.3 depends on many factors, among which it it difficult to determine the most ...
Meeting Document : WG-FSA-SAM 03/7 : Author(s): K.V. Shust and E.N. Kuznetsova (Russia)
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Haul data analysis from the Polish krill fishery in 1997–1999
February and June from 1997 to 1999 in statistical area 48. Records from each haul were used for analysis ... catches in this period and area. Each fishing season was different. In 1997 the catches were carried out ... in sub-area 48.1 and 48.3, in 1998 they were exclusively carried out in sub-area 48.1 and in 1999 in ... of 60-70 minutes. Differences in catch rates in various areas and years were observed. The highest ...
Meeting Document : WG-EMM-00/17 : Author(s): E. Jackowksi (Poland)
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Seamount-specific biomass estimates from SSRU 88.2H in the Amundsen Sea derived from mark-recapture data
Abstract: Mark-recapture data for Antarctic toothfish from individual seamount features in SSRU ... 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 ... overall showed a decline in biomass through time with a slight increase in biomass since 2012. The pattern ...
Meeting Document : WG-FSA-14/58 : Author(s): S.J. Parker and S. Mormede (New Zealand)
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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
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 ... survey to monitor sub-adult toothfish in the southern Ross Sea (strata A–C) using standardised gear in a ... standardised manner; and (2) To sample additional experimental stations in an adjacent area to identify areas ...
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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SUMMARY OF NOTIFICATIONS FOR KRILL FISHERIES IN 2010/11
Abstract: SUMMARY OF NOTIFICATIONS FOR KRILL FISHERIES IN 2010/11 Secretariat In accordance with ... Conservation Measure 21-03, seven Members notified their intentions to participate in krill fisheries in ... Subareas 48.1, 48.2, 48.3 and 48.4 and Divisions 58.4.1 and 58.4.2 in 2009/10 (Table 1); there was no ... notification submitted for exploratory fisheries for krill in 2010/11 (Conservation Measure 21-02). Fifteen ...
Meeting Document : CCAMLR-XXIX/19 : Author(s): Secretariat
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Revised research plan for the 2016/17 toothfish fishery in Division 58.4.4b by Japan and France
Abstract: Japan and France have revised the next season’s (2016/17) research plan in research ... during WG-SAM meeting in 2016. We have used extracted data provided by CCAMLR Secretariat in this late ... August for the current analysis, but not used the cleaning data provided by them in this early September ... due to tight schedule for the submission. The estimated median stock size in block 58.4.4b_1 and ...
Meeting Document : WG-FSA-16/33 Rev. 1 : Author(s): Delegations of Japan and France
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Monitoring Antarctic toothfish (D. mawsoni) recruitment in the southern Ross Sea
Abstract: Knowledge of recruitment dynamics, and in particular trends in recruitment and ... survey monitoring the recruitment of Antarctic toothfish (Dissotichus mawsoni) in the southern Ross Sea ... was started in 2012. The first year established the feasibility of carrying out a random stratified ... standardised gear in a standardised manner. It also established the appropriate depths and stratum boundaries ...
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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Seasonal and interannual variation in foraging range and habitat of macaroni penguins Eudyptes chrysolophus at South Georgia
Abstract: In marine ecosystems, characterisation of the foraging areas and habitats of predators ... is a key factor in interpreting their ecological role. We studied the foraging areas of the macaroni ... 2001 using satellite tracking. We investigated differences in foraging ranges and characteristics ... (male average = 572 km; female average = 376 km) in a north-westerly direction towards the Maurice Ewing ...
Meeting Document : WG-EMM-02/21 Text : Author(s): K.E. Barlow and J.P. Croxall (United Kingdom)