Résultats de la recherche
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–H for the years 2002–03 to 2012–13
biomass than previously estimated, mainly due to the signal in the last three years of tag data. These are ... the data in which we have the highest degree of confidence for this fishery, due to improvements in ... Abstract: This paper presents the Bayesian sex and age structured population stock assessment of ... 88.2C–H). We examined several models including the 2013 implementation of the 2011 base case (R1), using ...
Meeting Document : WG-FSA-13/52 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Potential modelling structures for a two-area stock assessment model for Antarctic toothfish (Dissostichus mawsoni) in the Amundsen Sea Region
in 2014/15 are expected to better inform the assessment of the entire stock including SSRUs 88.2C–G ... once additional age and tag data have been collected in SSRUs 88.2C–H as part of the two-year research ... Abstract: Two-area population models for Antarctic toothfish in the Amundsen Sea Region were ... developed further as current single area models did not fully explain the patterns in the observed data on ...
Meeting Document : WG-SAM-15/49 : Auteur(s): S. Mormede, S.J. Parker, A. Dunn and S.M. Hanchet (New Zealand)
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An idea to incorporate potential recruitments in the krill density model
involved uncertainties of age 1 krill. Present document improves the model by taking the uncertainties in ... in the model, dramatic variation of densities after 1994/95 season could not be clearly explained ... accepted values of mortality M (0.8-1.0), the potential proportional recruitment should be larger than the ... to account, and assuming a reasonable mortality. The model suggested that if we expect the currently ...
Meeting Document : WG-EMM-99/51 : Auteur(s): S. Kawaguchi and M. Naganobu (Japan)
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On marine protected areas in the Southern Ocean
Abstract: The details on designation of marine protected areas in the CCAMLR region are ... considered. The general and specific issues, such as MPA definition in application to CCAMLR area ... of climate change influence on ecosystems. The MPA Questionnaire is proposed for consideration to ... make easier the understanding of the Southern Ocean MPA designation process and problems. Author(s ...
Meeting Document : WS-MPA-11/13 : Auteur(s): G.P. Milinevsky and S.B. Kovalonok (Ukraine)
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POPULATION SUBDIVISION IN THE ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) REVEALED BY MITOCHONDRIAL AND NUCLEAR SINGLE NUCLEOTIDE POLYMORPHISMS (SNPS)
Abstract: The Antarctic toothfish (Dissostichus mawsoni) exhibits a circumpolar distribution in ... coastal waters south of the Antarctic Polar Front. For a preliminary evaluation of global population ... from four CCAMLR Subareas in the Southern Ocean (Australian Antarctic Territory (Subarea 58.4.2), Ross ... structure in this species. Author(s): K. Kuhn and P.M. Gaffney Title: POPULATION SUBDIVISION IN THE ...
Meeting Document : WG-FSA-08/P01 : Auteur(s): K. Kuhn and P.M. Gaffney
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AN IMPACT ASSESSMENT FRAMEWORK FOR BOTTOM FISHING METHODS IN THE CCAMLR AREA
assessment of bottom fishing impacts for the 2008/09 toothfish longline fishery. This paper illustrates the ... utility of the standardized approach and provides a methodological template for systematic impact ... Zealand) Title: AN IMPACT ASSESSMENT FRAMEWORK FOR BOTTOM FISHING METHODS IN THE CCAMLR AREA Approval ... Abstract: This paper presents a methodological framework to estimate the likely cumulative impact ...
Meeting Document : WG-SAM-09/P01 : Auteur(s): B.R. Sharp, S.J. Parker and N. Smith (New Zealand)
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Proposal to extend the fishing season for longline fishing in CCAMLR Statistical Division 58.5.2
have applied to the Patagonian toothfish longline fishery in CCAMLR statistical division 58.5.2. It ... regime of mitigation measures poses a very low level of risk to seabirds. It proposes that the period ... three seabird bycatch limit. It also proposes that the 1–30 September period be included as part of the ... "core" season and the 3 seabird bycatch limit no longer apply in September. Author(s): I. Hay ...
Meeting Document : WG-FSA-07/17 : Auteur(s): I. Hay (Australia)
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A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2018 random stratified trawl survey
, abundance and yield in Division 58.5.2 to the west of 79 o 20’ E using standard CCAMLR methods (CMIX and ... Generalized Yield Model). The 2018 survey showed a large 2+ cohort in the population. Catches of 443 t in the ... Abstract: The annual random stratified trawl survey was undertaken in Division 58.5.2 in the ... 2018/19 season and 320 t in the 2019/20 season respectively satisfied the CCAMLR decision rules. Author ...
Meeting Document : WG-FSA-18/56 : Auteur(s): D. Maschette and D. Welsford
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IDENTIFYING TAXONOMIC GROUPS AS VULNERABLE TO BOTTOM LONGLINE FISHING GEAR IN THE ROSS SEA REGION
an interim list of taxa to monitor in fishery bycatch in the Ross Sea as part of its 2008 benthic ... ecosystems (VMEs) requires a specific list of the taxa that are considered vulnerable. New Zealand identified ... with FAO guidelines are identified as vulnerable to bottom longline fishing activities in the Ross Sea ... TAXONOMIC GROUPS AS VULNERABLE TO BOTTOM LONGLINE FISHING GEAR IN THE ROSS SEA REGION Approval: Approved ...
Meeting Document : WS-VME-09/08 : Auteur(s): Bowden, D.A., Parker, S.J.
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A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey
, abundance and yield in Division 58.5.2 to the west of 79 o 20’ E using standard CCAMLR methods (CMIX and ... Generalized Yield Model). The 2019 survey showed a large 2+ and 3+ cohort in the population. Catches of 527 t ... Abstract: The annual random stratified trawl survey was undertaken in Division 58.5.2 in the ... in the 2019/20 season and 406 t in the 2020/21 season, respectively, satisfied the CCAMLR decision ...
Meeting Document : WG-FSA-2019/02 : Auteur(s): D. Maschette, G. Nowara and D. Welsford