Search results
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Management of C. gunnari in Subarea 48.3
Abstract: The management of Champsocephalus gunnari at South Georgia is complicated by the ... increased consumption of icefish by Antarctic fur seals in years of poor krill availability. Thus natural ... mortality of icefish may, in some years, increase by a large factor (assumed here to be 4) declining to ... can be used to calculate an appropriate proportion of an estimate of Bo which could be taken by ...
Meeting Document : WG-FSA-97/38 : Author(s): Kirkwood, G.P., Parkes, G.B., Everson, I., Agnew, D.J.
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Risk maps for Antarctic krill under projected Southern Ocean acidification
Southern Ocean are predicted by models to rise to above 1500 μatm in some parts of krill’s depth range by ... -dimensional circumpolar projection of future p CO 2, predict that by 2100 the Weddell Sea and the waters to ... south of the Polar Front is predicted to be unsuitable for hatching by the year 2300, which would lead ...
Meeting Document : WG-EMM-14/P06 : Author(s): S. Kawaguchi, A. Ishida, R. King, B. Raymond, N. Waller, A. Constable, S. Nicol, M. Wakit and A. Ishimatsu
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PRELIMINARY RESULTS OF TRIALS TESTING MODIFIED LONGLINE GEAR ‘TROTLINES’ IN PRESENCE OF CETACEANS IN SUBAREA 48.3
Abstract: 1. Paired trials were undertaken to compare toothfish catch rates and by-catch ... potential of this gear to reduce cetacean depredation. 3. By-catch to catch ratio was greater by number for ... . Consequences of a move to trotlines would therefore lead to: i. Some positive benefits by reducing cetacean ...
Meeting Document : WG-FSA-08/44 : Author(s): R.E. Mitchell, J. Clark, P. Reyes, L. Jones, J. Pearce, C.E. Edwards and D. Agnew (UK)
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Assessment of green Notothenia (Notothenia gibberifrons, Lonnberg 1905) stocks in the Antarctic Peninsula subarea
Abstract: Biological characteristic and distribution of the green Notothenia by depth are given ... based on the results of inventory trawling surveys carried out in 1984/1985 and 1986/1987 by the BMRT ... indices and the estimate of this species biomass by location and for the subarea on the whole. According ...
Meeting Document : SC-CAMLR-VII/BG/46 : Author(s): V.A. Boronin (USSR)
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Estimation of total removals (green weight)
by which green weight is estimated. The Report of WG-EMM included an appendix that describes this ... issue in detail and identifies a process by which the required information and data could be acquired ... . An updated appendix, by including further information from Members, is attached to this paper ...
Meeting Document : SC-CAMLR-XXXI/BG/15 : Author(s): Co-conveners of the Working Group on Ecosystem Monitoring and Management
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Implementation of the CCAMLR Scheme of International Scientific Observation during 2017/18
Abstract: This paper provides a summary of data collected by Scientific Observers operating in ... the Convention Area on board fishing vessels during the 2018 season (based on data received by the ... performance in species identification by observers, and fewer processing errors from the new longline logbook ...
Meeting Document : WG-FSA-18/11 Rev. 1 : Author(s): CCAMLR Secretariat
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An exploratory fishing expedition for Dissostichus eleginoides around the South Sandwich Islands, Antarctica
the Governments of Chile and the UK. A new fishery in Subarea 48.4 was found not be commercially viable due ... to an extremely low catch per unit of 5.37 g/hook. The low numbers of fish found may be been due to close ... and the UK. A new fishery in Subarea 48.4 was found not be commercially viable due to an extremely low catch ... per unit of 5.37 g/hook. The low numbers of fish found may be been due to close proximity ...
Meeting Document : SC-CAMLR-XII/BG/04 : Author(s): Delegations of Chile and United Kingdom
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Diet and prey consumption of Antarctic petrels Thalassoica antarctica at Svarthamaren, Dronning Maud Land and at sea outside the colony
%), followed by Crustaceans (5%). The prey composition and length found in this study is comparable to what ... is found in other diet studies. Estimates of food consumption for birds breeding at Svarthamaren ... %), followed by Crustaceans (5%). The prey composition and length found in this study is comparable to what ... is found in other diet studies. Estimates of food consumption for birds breeding at Svarthamaren ...
Meeting Document : WG-EMM-97/58 : Author(s): Røv, N., Lorentsen, S., Klages, N.
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Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, Dr E. Holmberg survey, February 1995
%), followed in importance by the mysid Thysanoessa sp. (35%) and krill (24%). The picture around SG was found ... aggregations were found in the South Georgia shelf during the Holmberg Cruise in Feb-March/1994, an acoustic ... Thysanoessa sp. (35%) and krill (24%). The picture around SG was found to be similar to that observed ... to the values reported for years of krill scarcity. While no krill aggregations were found in the South Georgia ...
Meeting Document : WG-FSA-95/36 : Author(s): Marschoff, E., Barrera-Oro, E., Casaux, R.
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Estimating toothfish biomass in Subarea 48.3 using local depletions
as a means of estimating toothfish density at South Georgia. Over the four years 2000-2003, we found 25 areas ... of estimating toothfish density at South Georgia. Over the four years 2000-2003, we found 25 areas of 12’ by 12 ...
Meeting Document : WG-FSA-SAM-04/18 : Author(s): Pearce, J., Agnew, D.