Resultados de la búsqueda
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Southern Ocean Network of Acoustics (SONA)
Abstract: Southern ocean processes are intimately linked to some of the most pressing challenges ... faced by society today: climate change, ocean acidification and the sustainable management of marine ... resources. To address these challenges we need to improve our understanding of the natural causes and ... consequences of Southern Ocean change. Sustained observations, which can only be large enough and maintained ...
Meeting Document : WG-EMM-13/17 Rev. 1 : Autor(es): S. Fielding (United Kingdom), E. Josse (France), R. Kloser (Australia), R. O’Driscoll (New Zealand), C. Reiss (USA) and G. Skaret (Norway)
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Preliminary assessment of Patagonian toothfish in Subarea 48.4
Abstract: To date, the stocks of toothfish in Subarea 48.4 have been divided, for assessment ... purposes, into northern and southern components. The northern component is assessed as a single species of ... D. eleginoides whilst the southern component is assessed as a combination of D.eleginoides and D ... species specific assessments, covering the whole of the subarea, would be a more appropriate method for ...
Meeting Document : WG-FSA-13/31 : Autor(es): R. Scott and V. Laptikohvsky (United Kingdom)
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Proposal for a longline survey of toothfish in the northern Ross Sea region (SSRUs 88.2 A and B)
to sample the toothfish populations in the northern areas (61°- 66° S) of SSRUs 88.2A–B. The purpose ... of the research as requested by the Scientific Committee (SC-CAMLR XXXII, paragraph 3.76) is to ... patterns and improve estimation of population characteristics predicted by Ross Sea spatial population ... models. Additional outcomes of the research relate to mapping the bathymetry of the fishable area ...
Meeting Document : WG-SAM-14/34 : Autor(es): Delegations of New Zealand, Norway and the United Kingdom
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Proposal for a longline survey of toothfish in the northern Ross Sea region (SSRUs 88.2 A and B)
to sample the toothfish populations in the northern areas (61°- 66° S) of SSRUs 88.2A–B. The purpose ... of the research as requested by the Scientific Committee (SC-CAMLR XXXII, paragraph 3.76) is to ... patterns and improve estimation of population characteristics by Ross Sea spatial population models ... . Additional outcomes of the research relate to mapping the bathymetry of the fishable area, documenting ...
Meeting Document : WG-FSA-14/61 : Autor(es): Delegations of New Zealand, Norway and the United Kingdom
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Implementing Article II of the CAMLR Convention
2015 CCAMLR Symposium in Santiago, Chile. Dr. Hofman was a member of the United States delegation ... during the negotiation of the CAMLR Convention. ASOC has provided some additional background for CCAMLR’s ... consideration. As a participant in the Convention negotiations, Dr. Hofman has an in-depth understanding of the ... reasoning behind Article II and other aspects of the Convention. Dr. Hofman notes that that Convention ...
Meeting Document : CCAMLR-XXXIV/BG/25 : Autor(es): Submitted by ASOC
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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 : Autor(es): B. Moore, S. Mormede, S. Parker and A. Dunn
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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 : Autor(es): M. Mori, K. Mizobata, T. Okuda and T. Ichii
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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 : Autor(es): G.M. Watters, J.T. Hinke and C.S. Reiss
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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 : Autor(es): X. Wang, G. Skaret, O.R. Godø and X. Zhao
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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
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 ... shallow and deep parts of the Heard Island Plateau; • to assess the abundance of Champsocephalus gunnari ...
Meeting Document : WG-FSA-07/46 : Autor(es): G.B. Nowara and T. Lamb (Australia)