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On Ageing Technique for Icefish (champsocephalus gunnari Lönnberg 1905) from South Georgia Island Shelf
for the third quarter of the year is appended Author(s): Zh.A. Frolkina (USSR) Title: On Ageing ... adjustment to age determination of fish longer than 30 cm with an enlarged otolith centre. An age-length key ... Abstract: Radii of annual elements were calculated on the basis of studying C. gunnari length ... . This was done using specimens from strictly’ defined age groups. These radii measurements suggest an ...
Meeting Document : WG-FSA-89/19 : Автор(ы): Zh.A. Frolkina (USSR)
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A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries on krill predators
fishery. 3. The biomass of krill appropriate for the predators (and the fishery) fluctuates from one year ... Abstract: 1. Although the development of fisheries for krill in the southern oceans has prompted ... considerable work on the indirect effects of fisheries on krill predators, to date all work has focused on ... population level effects. Here, we present for. the first time a model at the level of the foraging trip for ...
Meeting Document : WG-EMM-96/20 : Автор(ы): Switzer, P.V., Mangel, M.
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A revised estimate of short-term yield for the mackerel icefish (Champsocephalus gunnari) off Heard Island based on a trawl survey in 1998
in 2000 will be predominantly on Age 5 fish. After this time, catch limits may need to be set at an ... Shell Bank) in the vicinity of Heard Island enabled a revised estimate of yield for the coming 2 seasons ... cohorts are still sufficiently strong to provide for a yield greater than estimates of the long term ... precautionary yield. Estimates of yield for the Heard Island Plateau population are 732 tonnes for 1999 and 518 ...
Meeting Document : WG-FSA-98/54 : Автор(ы): A. Constable and D. Williams (Australia)
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Examination of the characteristics of the fishery for Dissostichus eleginoides in the CCAMLR Statistical Subarea 48.3 and its implications on estimating trends in catch per unit effort
and random in haul-by-haul catch and effort data from the longline fishery for Dissostichus ... eleginoides in Subarea 48.3. We concentrate on presenting the results of preliminary work on the potential ... effects of changing fishing patterns on the standardisation of the CPUE time series. We consider whether ... the spatial pattern of fishing might have changed over the years, whether the current measure of ...
Meeting Document : WG-FSA-SAM-05/17 : Автор(ы): A.J. Constable, S.G. Candy and B. Raymond (Australia)
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Preliminary assessment of long-term yield of Patagonian toothfish (Dissostichus eleginoides) for the Heard Island Plateau region (CCAMLR Division 58.5.2) based on a random stratified trawl survey in May 2004
58.5.2 in the vicinity of Heard Island in May 2004 to provide the information for an assessment of short ... for the area of Division 58.5.2 to the west of 79 o 20’ E using standard CCAMLR methods. It presents a ... range of sensitivity analysis for the assessment based on deliberations at WG-FSA 2003 with respect to ... Patagonian toothfish (Dissostichus eleginoides) for the Heard Island Plateau region (CCAMLR Division 58.5.2 ...
Meeting Document : WG-FSA-04/76 : Автор(ы): C.R. Davies, T. Lamb, A.J. Constable and R. Williams (Australia)
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Preliminary assessment of mackerel icefish (Champsocephalus gunnari) for the Heard Island Plateau region (Division 58.5.2) based on a survey in June 2005
in the vicinity of Heard Island in June 2005 to provide the information for an assessment of short ... years old during the coming season. This would result in an estimated yield of 1,210 tonnes, which is ... (Champsocephalus gunnari) for the Heard Island Plateau region (Division 58.5.2) based on a survey in June 2005 ... less than that predicted for the coming season in the 2004 assessment by WG-FSA. Author(s): A.J ...
Meeting Document : WG-FSA-05/39 : Автор(ы): A.J. Constable, T. Lamb and R. Williams (Australia)
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Impacts of rising sea temperature on krill increase risks for predators in the Scotia Sea
below an established depletion threshold (75% of its unimpacted level), with consequent risks for some ... reducing fishing pressure is one option for mitigating the overall consequences for marine biota. We used a ... minimally realistic ecosystem model to examine how projected effects of ocean warming on the growth of ... for predators by curtailing krill fishing at different points in the 21st century. The projected ...
Meeting Document : WG-EMM-18/P02 : Автор(ы): E.S. Klein, S.L. Hill, J.T. Hinke, T. Phillips and G.M. Watters
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Report of the Workshop for the Analysis on the Anomalously High CPUE by Korean Vessels in the CCAMLR Area
Abstract: The Workshop for the Analysis on the Anomalously High CPUE by Korean Vessels in the ... : Report of the Workshop for the Analysis on the Anomalously High CPUE by Korean Vessels in the CCAMLR Area ... Secretariat, took place from April 29th to May 1st, 2013 in Busan, Korea. Key issues raised and future work ...
Meeting Document : WG-SAM-13/39 : Автор(ы): Delegation of the Republic of Korea
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IMPACTS OF CLIMATE CHANGE ON ANTARCTIC MARINE ECOSYSTEMS: A CALL FOR ACTION
Abstract: Climate change has emerged as an important topic in Antarctic research over the past ... years major alterations of the ecological workings of the Southern Ocean have been underway. These ... overall warming making it the region that is experiencing the most rapid warming on the planet: Future ... requested the Scientific Committee to provide advice on the issue of climate change. The Scientific ...
Meeting Document : CCAMLR-XXVII/BG/27 : Автор(ы): Submitted by ASOC
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A critical re-examination of the evidence for a possible dependence of Weddell seals (Leptonychotes weddellii) on Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica
Abstract: There is presently debate over the degree to which the fishery for Antarctic toothfish ... methodological limitations and knowledge gaps. We present new stable isotope data on Weddell seal prey, consider ... the potential contribution of toothfish to the diet of Weddell seals using an isotope mixing model ... -energy food resource for Weddell seals that possibly cannot be adequately replaced by other prey, in ...
Meeting Document : WG-EMM-13/28 : Автор(ы): R. Eisert, M.H. Pinkerton (New Zealand), S.D. Newsome and O.T. Oftedal (USA)
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