Résultats de la recherche

1. A preliminary model-based approach for estimating natural mortality of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region

   directly to the productivity of a stock, stock status, and estimated precautionary yields. In the Ross Sea ... constant across age and sex. In 2018, the independent review of the Ross Sea region D. mawsoni stock ... assessment recommended that CCAMLR consider the robustness and reliability of estimating natural mortality in ... the stock assessment model. We undertake a preliminary investigation of estimating natural mortality ...

   Meeting Document : WG-SAM-2019/04 : Auteur(s): B. Moore, S. Mormede, S. Parker and A. Dunn

2. Modelling egg and larval transport of Antarctic Toothfish (Dissostichus mawsoni) in the East Antarctic region: Plan

   Abstract:  Antarctic Toothfish (Dissostichus mawsoni) is one of the target species that CCAMLR ... and difficulties of in situ observations, life cycle with their spatial and temporal distribution is ... yet to be fully understood. Especially in early life stage, the process of successful egg/larval ... project investigates the transport pattern of egg/larvae of toothfish using particle tracking scheme uses ...

   Meeting Document : WG-SAM-2019/20 : Auteur(s): M. Mori, K. Mizobata, T. Okuda and T. Ichii

3. Long-term observations from Antarctica demonstrate that mismatched scales of fisheries management and predator–prey interaction lead to erroneous conclusions about precaution

   that can help conserve marine predators. Uncertainty about the impacts of fisheries removals on ... dependent predators bolsters this perspective, but consideration of the spatio-temporal scales over which ... forage species, their predators, and fisheries interact can aid assessment of whether low catch limits ... hierarchical model and 30+ years of monitoring data, we show that expected penguin performance was reduced when ...

   Meeting Document : WG-EMM-2019/11 : Auteur(s): G.M. Watters, J.T. Hinke and C.S. Reiss

4. Using stationary acoustic platforms to assess precision and accuracy of acoustical krill surveys

   issues of krill migrating too close to the surface to be acoustically detected, as well as potential ... issues of diel changes in acoustic scattering strengths. However, due to logistic constraints, acoustic ... effects of krill vertical distribution on survey results. The Institute of Marine Research, Norway has on ... the South Orkney Islands since 2014, and in this report some of these data have been analysed in order ...

   Meeting Document : WG-EMM-2019/32 : Auteur(s): T. Klevjer, G. Skaret and B.A. Krafft

5. DEVELOPMENT OF SPATIALLY EXPLICIT AGE-STRUCTURED POPULATION DYNAMICS OPERATING MODELS FOR ANTARCTIC TOOTHFISH IN THE ROSS SEA

   other factors to quantify risk and uncertainties for management of the Ross Sea Antarctic toothfish ... program allows implementation of an aggregate movement model for use with large numbers of areas as a ... mortality), as well as movement processes defined as the product of a set of preference functions that are ... based on known attributes of spatial location. The operating models considered were single sex age ...

   Meeting Document : WG-SAM-09/18 : Auteur(s): A. Dunn, S. Rasmussen and S. Hanchet (New Zealand)

6. Dynamics of Antarctic krill in the Bransfield Strait during austral summer and autumn investigated using acoustic data from a fishing vessel

   geographical areas of predictable high krill densities, and knowledge about trends and variability in krill ... fishing vessels might help provide such insight. In the present work, the dynamics of krill with regards ... integration assuming they constituted the bulk of krill biomass. Our results indicated a major shift in mid ... -April which included increased biomass, increased vertical distribution of swarms, a shift in diel ...

   Meeting Document : WG-EMM-17/40 : Auteur(s): X. Wang, G. Skaret, O.R. Godø and X. Zhao

7. EU PROPOSAL FOR AMENDMENT TO CCAMLR CONSERVATION MEASURE 10-07 TO ALLOW FOR INTERSESSIONAL DE-LISTING OF IUU VESSELS

   FOR INTERSESSIONAL DE-LISTING OF IUU VESSELS Explanatory Memorandum Over the course of last years ... , CCAMLR adopted Conservation Measures 10-06 and 10-07 which provide for the identification of individual ... dynamic nature of IUU fishing activities, the lists can rapidly become obsolete. As a result, it was one ... of the recommendations of the Performance Review Panel that "CCAMLR should review the process ...

   Meeting Document : CCAMLR-XXIX/43 : Auteur(s): Delegation of the European Union

8. Deployment of research hauls in the exploratory fisheries for Dissostichus spp. in Subareas 48.6 and 58.4 in 2010/11

   advice of the Scientific Committee, and using information held by the CCAMLR Data Centre. Vessels were ... provided with three random lots of starting positions for research hauls in each SSRU. These random lots ... vessel’s arrival at the SSRU. As of the end of June 2011, five vessels (Hong Jin No. 701, Insung No.7 ... in 2010/11. The vessels completed a total of 124 research hauls and, in all instances where ...

   Meeting Document : WG-SAM-11/04 : Auteur(s): Secretariat

9. EU PROPOSAL FOR AMENDMENT TO CCAMLR CONSERVATION MEASURE 10-06 TO ALLOW FOR INTERSESSIONAL DE-LISTING OF IUU VESSELS

   FOR INTERSESSIONAL DE-LISTING OF IUU VESSELS Explanatory Memorandum Over the course of last years ... , CCAMLR adopted Conservation Measures 10-06 and 10-07 which provide for the identification of individual ... dynamic nature of IUU fishing activities, the lists can rapidly become obsolete. As a result, it was one ... of the recommendations of the Performance Review Panel that "CCAMLR should review the process ...

   Meeting Document : CCAMLR-XXIX/42 : Auteur(s): Delegation of the European Union

10. Report on a random stratified trawl survey to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari conducted in the Heard Island region (Division 58.5.2), May–June 2007

    stations chosen for sampling in each stratum. This paper describes the conduct of the survey on the FV ... Abstract:  Since the commencement of commercial fishing in Australian waters on the Heard Island ... plateau in 1997 an annual random stratified trawl survey (RSTS) has been conducted to assess the stocks of ... survey had two main aims: • to assess the abundance of juvenile and adult Dissostichus eleginoides on the ...

    Meeting Document : WG-FSA-07/46 : Auteur(s): G.B. Nowara and T. Lamb (Australia)

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