Résultats de la recherche
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An integrated stock assessment for the Heard Island and McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2
, the use of abundance estimates from a random stratified trawl survey (RSTS), longline tag-release data ... , (3) updated maturity parameters, (4) updated tag loss estimates (5) a bias correction for fish ... the CASAL version 2.30-2012-03-21 rev. 4648 that was agreed on by WG-SAM-14. The updated assessment ... model leads to a smaller estimate of the virgin spawning stock biomass B 0 than that obtained in 2015 ...
Meeting Document : WG-FSA-17/19 : Auteur(s): P. Ziegler
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Birds: Trophic modelling of the Ross Sea
Description / Abstract: A supporting document to the CCAMLR Science paper: M.H. Pinkerton, J.M ... . Bradford-Grieve and S.M. Hanchet. 2010. A balanced model of the food web of the Ross Sea, Antarctica ... 1993). In a study of chick abundance trends, Barber-Meyer et al. (2008) suggests that the overall ... each year (Ainley et al. 1984), a breeding success of 60%, and juvenile mortality of 1.0 y-1 in the ... (data includes East Crozier) (Taylor et al 1990) compared to 118 000 pairs in 1991, a decrease of 33 ... north to a small area of persistent pack ice near the Balleny Islands (Davis et al 1996). Adult and ...
Document : Site Section: Publications
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Analysis of variables influencing finfish by-catch in the krill fishery in Area 48
fishery and quantify the impact of this bycatch on the finfish stocks (Peatman et al., 2012). Author(s ... Abstract: This report presents the results of a method used to explore potential explanatory ... potential explanatory variables was investigated using a delta-lognormal modelling approach. Time of day ... bycatch of the finfish family groupings. Results indicated that there was a wide disparity in the ...
Meeting Document : WG-EMM-12/28 : Auteur(s): S.M. Martin, T. Peatman, J. Moir Clark (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)
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Scientific contribution to the 2016 review of Conservation Measure 51-07: Part 2 – outcomes from the application of the risk assessment framework for distributing the krill trigger level in Area 48
Watters et al (2013) in which FOOSA was used to explore the consequences of different harvest strategies ... the data within the risk assessment framework, and (ii) a discussion of the implications of this work ... pressure which is a measure of the potential for competition in local areas. Given the scenarios here ... on SSMUs in Area 48. Author(s): A. Constable (on behalf of the e-group on CM 51-07 WG-EMM review ...
Meeting Document : WG-FSA-16/48 Rev. 1 : Auteur(s): A. Constable (on behalf of the e-group on CM 51-07 WG-EMM review)
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Density and abundance estimates of baleen whales recorded during the 2019 DY098 cruise in the Scotia Sea around South Georgia and the South Sandwich Islands
within the Scotia Arc ecosystem, sensu Reilly et al. (2004). Author(s): M. Baines, M. Reichelt, C. Lacey ... estimates, but may provide a useful means of comparing whale densities and habitat use patterns between the ... species during the survey (226 sightings of a total count of 495 whales) and were widely distributed east ... sightings and a cumulative count of 76 whales). Humpback whale abundance in South Georgia (Subarea 48.3) was ...
Meeting Document : WG-EMM-2019/27 : Auteur(s): M. Baines, M. Reichelt, C. Lacey, S. Pinder, S. Fielding, N. Kelly, E. Murphy, P. Trathan and J.A. Jackson
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ESTIMATION OF IUU CATCHES OF TOOTHFISH INSIDE THE CONVENTION AREA DURING THE 2009/10 FISHING SEASON
58.4.1 and 58.4.4a. Changes from version 1 are highlighted in bold. ESTIMATION OF IUU CATCHES OF ... a product of the fishing time of IUU vessels and likely daily catch rates. The fishing time of IUU ... toothfish has occurred and which has not already been attributed to a sighting report. Information on the ...
Meeting Document : WG-FSA-10/06 : Auteur(s): Secretariat
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Distribution and abundance of Antarctic krill (Euphausia superba) off East Antarctic (30–80°E) in January–March 2006
(Euphausia superba) and its associated coefficient of variance (CV). This paper updates the version submitted ... to WG-EMM in 2006 (WG-EMM-06/16) because a reanalysis of the data has resulted in amendments to the ... -2. B0 was estimated to be 12.46 million tonnes with a CV of 15.15%. Krill were widely distributed at ... catches were considered in the context of the physical oceanography, from which a case is presented for ...
Meeting Document : WG-EMM-07/33 : Auteur(s): T. Jarvis, N. Kelly, E. van Wijk, S. Kawaguchi and S. Nicol (Australia)
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e-sc-xxxvi-a07.pdf
... -21 rev. 4648 be considered the current approved CCAMLR version until a process is agreed for ... of progress towards a stock assessment and research proposals ........ 279 Subarea 48.1 ... of progress towards a stock assessment and research proposals .... 291 Management advice ... Appendix A: List of Participants ............................................................ 326
application/pdf attached to:WG-FSA-17Meeting Report : WG-FSA-17
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Revised research plan for toothfish in Division 58.4.4b by Shinsei maru No. 3 in 2015/16
results of reanalysis using CASAL models in research block 58.4.4b_1 are described in a separated document ... ) using the same GIS software (GEBCO_08 Grid, version 20100927) as the latest CCAMLR Statistical Bulletin ...
Meeting Document : WG-FSA-15/20 : Auteur(s): Delegation of Japan
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TROPHIC OVERLAP OF WEDDELL SEALS (LEPTONYCHOTES WEDDELLI) AND ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA, ANTARCTICA
further away (Testa et al. 1985). • Direct information on diet of the Weddell seals, including diver ... Abstract: We present information to investigate the significance of Antarctic toothfish as a prey ... region suggest that toothfish are a significant prey item for Weddell seals. • In contrast, research ... importance of toothfish as a prey item for seals, but no results are available. • We have compared mortality ...
Meeting Document : WG-EMM-08/43 : Auteur(s): M.H. Pinkerton, A. Dunn and S.M. Hanchet (New Zealand)