Search results
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Estimating density and biomass of Antarctic krill (Euphausia superba) around South Shetland using the 2-dB difference method
estimated using an acoustics survey. Acoustic data were collected with 38 and 120 kHz from April 13 to 24 in ... CCAMLR standard protocols using swarm integration (SHAPES module within that software for swarm ... to be 0.20 g/m 2 and 18 thousand tons (CV=33.8%) applying S v difference 3.96-5.91 dB and 0.92 g/m 2 ...
Meeting Document : SG-ASAM-18/08 : Author(s): S. Choi, K. Lee and D. An
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Investigating the uncertainty of age determinations for Patagonian toothfish (Dissostichus eleginoides) and the implications for stock assessment
(misclassification matrix) to address some issues regarding true ages not being the mode at the extremes ... matrix) to address some issues regarding true ages not being the mode at the extremes of the matrix ...
Meeting Document : WG-FSA-14/46 : Author(s): P. Burch, P. Ziegler, W. de la Mare and D. Welsford (Australia)
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The efficacy of video-based electronic monitoring technology for at-sea monitoring of the halibut longline fishery
., accuracy within 10%) distinguished thirteen species that represented 97% of the halibut fishery catch. Some ... between EM and observer was also evident with species utilization determination (i.e., kept or discarded ... ) and time, location and depth at set start and finish. The results of this study demonstrated that EM ... broader fleet suitability of EM over observers makes this an attractive option. The authors suggest that a ...
Meeting Document : WG-FSA-03/100
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Estimating food consumption of marine predators: Antarctic fur seals and macaroni penguins
and macaroni penguin Eudyptes chrsolophus) that feed on krill in the Southern Ocean were used as ... examples to test the algorithm. A sensitivity analysis showed that estimates of prey consumed were most ... algorithm showed that the seasonal demand for food peaked in both species in the second half of the breeding ... macaroni penguins compete for krill with a commercial fishery, these results provide an insight into the ...
Meeting Document : WG-EMM-02/23 : Author(s): I.L. Boyd (United Kingdom)
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Marine debris, entanglements and hydrocarbon soiling at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2018/19
gazella) were observed at Bird Island and two at King Edward Point with no marine mammal entanglements ... with seabird colonies at Bird Island, most commonly in association with wandering albatrosses (35 items ... ; 43 %). One incidence of an entangled wandering albatross (Diomedia exulans) was reported; a bird with ... entanglements was below the long-term mean at all sites surveyed. Debris associated with seabird colonies was ...
Meeting Document : SC-CAMLR-38/BG/28 : Author(s): Delegation of the United Kingdom
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Beached birds: a guide used by north pacific groundfish observers to identify seabirds incidentally caught in fisheries
with black and white drawings. The purpose of using this new educational tool is to enhance the ability ... CCAMLR Library. Author(s): T. Hass and S. Davis (USA) Title: Beached birds: a guide used by north ...
Meeting Document : WG-FSA-03/24 : Author(s): T. Hass and S. Davis (USA)
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Characterisation of the exploratory fishery on Dissostichus spp. between the 2004/05 and 2016/17 fishing seasons in Division 58.4.3.a
in accordance with Conservation Measure 41-06 and associated measures. The main objective of this ... season 2016/17. Author(s): J.-B. Lecomte, R. Sinegre, A. Rigaud and T. Okuda Title: Characterisation of ...
Meeting Document : WG-SAM-17/20 : Author(s): J.-B. Lecomte, R. Sinegre, A. Rigaud and T. Okuda
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Fishes incidentally caught by Japanese Antarctic krill commercial fishery to the north of the South Shetland Islands during the 1994/95 austral summer
of by-catch fishes was higher in krill hauls with the low catch rates. Author(s): Iwami, T. Title ...
Meeting Document : WG-EMM-95/56 : Author(s): Iwami, T.
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Report on fishing effort and seabird interactions during the season extension trials in the longline fishery for Dissostichus eleginoides in Statistical Division 58.5.2
paper presents information on fishing effort and seabird interactions with fishing gear collected during ... ), and 2017 (WG-FSA-17/20). Author(s): T. Lamb Title: Report on fishing effort and seabird interactions ...
Meeting Document : WG-FSA-18/57 : Author(s): T. Lamb
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Investigation of the sensitivity of the Ross Sea toothfish assessment to withholding subsets of the available data
the effect of not updating an assessment every year, and also the evolution of stock assessments with ... that were used to set the precautionary yields for each fishery in 2009. The change in the biomass ... estimated by the models arising from withholding data was found to be highest in the earlier years of stock ... years, the change in estimated biomass arising from withholding data was much smaller, with values ...
Meeting Document : WG-SAM-11/17 : Author(s): S. Mormede (New Zealand)