Search results
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Variations in food composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at South Georgia
/February 1991 and January 1992 by analyzing appr. 9,000 stomachs. Main prey items were krill (Euphausia ... krill shortage, such as in 1991, krill is replaced by Themisto gaudichaudii and sometimes Thysanoessa ... attributed to differences in prey availability, but appears to be much less influenced by differences in ...
Meeting Document : WG-FSA-92/26 : Author(s): K.-H. Kock (Germany), I. Everson (United Kingdom), S. Wilhelms (Germany), S. Campbell (United Kingdom), J. Szlakowski (Poland), G. Parkes (United Kingdom), Z. Cielniaszek (Poland) and C. Goss (United Kingdom)
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The state of exploited fish stocks in the Southern Ocean - a review
Abstract: Antarctic finfish resources have been subject to exploitation primarily by the Soviet ... Electrona carlsbergi the fishery on all other species is restricted by conservation measures. The stocks ... most heavily affected by fishing are those of Notothenia rossii in both sectors, Notothenia squamifrons ...
Meeting Document : SC-CAMLR-X/BG/13 : Author(s): Delegation of Germany
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Sensitivity analysis identifies high influence sites for estimates of penguin krill consumption on the Antarctic Peninsula
Abstract: Krill consumption by natural predators represents a critical link between surveys and ... Island alone would decrease uncertainty in total population by 24.8%, whereas high quality surveys of all ... 14 “high-influence” locations would decrease uncertainty by almost 72%. Updated population estimates ...
Meeting Document : WG-EMM-12/P02 : Author(s): H.J. Lynch, N. Ratcliffe, J. Passmore, E. Foster and P. N. Trathan
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Results of the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2 in the 2013/14 season
Abstract: Following the Spanish research plan approved by the SC-CCAMLR XXXII, during the second ... abundance by tag-recapture models. The IEO is starting the process of reading otoliths with ageing purposes ... divisions. Results of other data collected such as fish by-catch, incidental catch of benthic taxa or ...
Meeting Document : WG-SAM-14/12 Rev. 1 : Author(s): R. Sarralde, L.J. López-Abellán and S. Barreiro (Spain)
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Krill fishery report: 2006 update
the “Fishery Reports” developed by WG-FSA in 2004. As reported to the CCAMLR Secretariat, 7 vessels ... observer data; Time series of catch by season, Contracting Party and small-scale management unit; Species ... composition of by-catch; Occurrence of incidental catches of seabirds and mammals; Development of measures of ...
Meeting Document : WG-EMM-06/5 : Author(s): Secretariat
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Stomach contents of sub-adult Antarctic toothfish (Dissostichus mawsoni) from the western Ross Sea, Antarctica
mawsoni) captured by bottom longline in the western Ross Sea were analysed. Fish were sampled during the ... ) were the most important prey by frequency, weight and IRI, while small notothens (Nototheniidae) were ... , but only 6% by IRI. Samples were collected mainly from the continental slope along the northern edge ...
Meeting Document : WG-FSA-06/27 : Author(s): D.W. Stevens (New Zealand)
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Climate change and precautionary spatial protection: seasonal sea ice
little changed by human activities, particularly by the impacts (either direct or indirect) of marine ... currently covered by seasonal sea ice (as of 2011) could be considered for creation as restricted use Marine ...
Meeting Document : WS-MPA-11/18 : Author(s): P.N. Trathan and S.M. Grant (UK)
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IDENTIFICATION OF DATA QUALITY METRICS FOR TAGGING DATA SELECTION
Abstract: The suite of data quality metrics introduced by Middleton & Dunn (2008) is examined ... rates of recapture of tags released by the trip, and above-median tag recapture rates by the trip.A ...
Meeting Document : WG-SAM-09/19 : Author(s): D.A.J. Middleton and A. Dunn (New Zealand)
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Changes in the fish biomass around Elephant Island (Statistical Subarea 48.1) from 1976 to 1996
two years of the fishery. Results of bottom trawl surveys conducted by Germany in the vicinity of ... , Gobionotothen gibberifrons, Chaenocephalus aceratus have been considerably affected by fishing. Stocks of G ... . gibberifrons and C. aceratus had apparently recovered to a large extent by the second half of the 1980s. C ...
Meeting Document : WG-FSA-97/27 : Author(s): Kock, K.-H.
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Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey
-exploitation survey estimate of kril1 biomass are extended to incorporate most of the amendments specified by ... . Three alternative fishing seasons are considered. The model extensions requested by the Third Meeting ... fishing mortality, as specified by the Fourth Meeting, results in marked reductions in the probabilities ...
Meeting Document : WG-KRILL-93/42 : Author(s): D.S. Butterworth, G.R. Gluckman, R.B. Thomson and S. Chalis (South Africa)