Search results
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Mackerel icefish Champsocephalus gunnari in the diet of upper trophic level predators at South Georgia: implications for fisheries management
on the C. gunnari population. C. gunnari occurred in 20 – 40 % of scats from Antarctic fur seals and comprised 48 ... . C. gunnari occurred in 20 – 40 % of scats from Antarctic fur seals and comprised 48% of the diet by mass ...
Meeting Document : WG-FSA-03/74 : Author(s): K. Reid, S. Hill and T. Diniz (United Kingdom)
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Acoustic survey design to estimate krill biomass in Subareas 48.1, 48.2 and 48.3
with a CV of 20%. Author(s): Hewitt, R.P., Watters, G. Title: Acoustic survey design to estimate krill ... of survey effort can provide an estimate of krill biomass in Subareas 48.1, 48. 2 and 48.3 with a CV of 20%. ...
Meeting Document : WG-EMM-95/71 : Author(s): Hewitt, R.P., Watters, G.
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Some comments on the procedure for testing estimators of krill abundance which utilise survey data
patterns, which are compatible with existing information on the distributions from surveys. "Two-level ... are then located at random within the survey area. These "two-level" models provide an encouraging ... , which are compatible with existing information on the distributions from surveys. "Two-level" models ... at random within the survey area. These "two-level" models provide an encouraging improvement in fits ...
Meeting Document : WG-KRILL-91/21 : Author(s): D.S. Butterworth, D.L. Borchers and D.G.M. Miller (South Africa)
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Movements of tagged Antarctic toothfish (Dissostichus mawsoni) in Subarea 48.6 in relation to stock structure hypotheses
(Söffker et al., 2018). Meanwhile, no migrations of tagged fish between northern seamounts (research blocks ... and feeding grounds, respectively, have been observed to date. The lack of tag movement between the two areas ... ., 2018). Meanwhile, no migrations of tagged fish between northern seamounts (research blocks 48.6_2 ... grounds, respectively, have been observed to date. The lack of tag movement between the two areas ...
Meeting Document : WG-FSA-2019/05 : Author(s): T. Ichii, M. Okazaki, T. Okuda and S. Somhlaba
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ANALYSIS OF THE POTENTIAL FOR AN ASSESSMENT OF TOOTHFISH STOCKS IN DIVISIONS 58.4.1, 58.4.2
for a number of consecutive years with the tagging of toothfish a prerequisite for the legal fishery ... of consecutive years with the tagging of toothfish a prerequisite for the legal fishery. This paper presents ...
Meeting Document : WG-SAM-08/04 : Author(s): D.J. Agnew, C. Edwards, R. Hillary, R. Mitchell (UK) and L.J. López Abellán (Spain)
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ECOLOGICAL REPERCUSSIONS OF HISTORICAL FISH EXTRACTION FROM THE SOUTHERN OCEAN
stocks were on average reduced to <50%, and finally (mid-1980s) to <20%, of original size. Despite ... strong year classes, as is true of such fish elsewhere. A climate regime, the Southern Annular Mode, once ... oscillated between two states, but has remained in its “positive mode” since the time of the fish extraction ... islands, where fishing was concentrated — declined simultaneously during the two periods of heavy fishing ...
Meeting Document : WG-EMM-08/P07 : Author(s): D. Ainley and L. Blight
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A brief outline of the biology of the Antarctic silverfish, Pleuragramma antarcticum Boulenger, 1902 (Nototheniidae) from the Antarctic Indian Ocean
Abstract: The Antarctic silver fish (Pleuragramma antarcticum) is one of the most numerous ... three relatively isolated groups. Fish aged from 0+ to 3+ years live in the epi- mesopelagic zone where ... there are macro aggregations of plankton, while fish aged from 3+ to 12+ years form near-bottom, pelagic schools ... they reach 13-16 cm in length and 4-6 years of age. Males reach maturity at 12-18 cm in length and 4-7 years ...
Meeting Document : WG-FSA-92/11 Rev. 1 : Author(s): V.V. Gerasimchuk (Ukraine)
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Estimating future krill catches that meet the CCAMLR and alternative decision rules for FAO Subarea 48.1 using an integrated assessment model
Abstract: An integrated assessment model for Antarctic krill in FAO Subarea 48.1 that ... decision rules for FAO Subarea 48.1 using an integrated assessment model Microsoft Word File: emm-15-51r1 ... estimate the effects of the fishery on the krill population. The model estimates parameters representing ... the CCAMLR decision rules. An alternative pair of decision rules to those currently employed by CCAMLR ...
Meeting Document : WG-EMM-15/51 Rev. 1 : Author(s): D. Kinzey, G.M. Watters and C.S. Reiss (USA)
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A proposal for the establishment of a Ross Sea Region Marine Protected Area
Conservation Measure following each 10-year review. We look forward to working together with Members at CCAMLR ... ; and clarifying that the Commission may amend the MPA Conservation Measure following each 10-year review. We look ... forward to working together with Members at CCAMLR XXXII to achieve consensus to establish an MPA ...
Meeting Document : CCAMLR-XXXII/27 : Author(s): Delegations of New Zealand and the USA
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Exploitation of the marine environment by two sypatric albatrosses in the Pacific Southern Ocean
) and P.M. Sagar (New Zealand) Title: Exploitation of the marine environment by two sypatric albatrosses ... Exploitation of the marine environment by two sypatric albatrosses in the Pacific Southern Ocean ...
Meeting Document : WG-FSA-04/59 : Author(s): S.M. Waugh (New Zealand), H. Weimerskirch, Y. Cherel (France), U. Shankar (New Zealand), P.A. Prince (United Kingdom) and P.M. Sagar (New Zealand)