Search results
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Seamount-specific biomass estimates from SSRU 88.2H in the Amundsen Sea derived from mark-recapture data
on almost every seamount in every year and usually in proportion to the level of tagging on the ... in the percentage of the population tagged due to the annual immigration of untagged fish, along with ... seamount in the previous year. Trends in local biomass estimates for individual seamounts and SSRU 88.2H ... overall showed a decline in biomass through time with a slight increase in biomass since 2012. The pattern ...
Meeting Document : WG-FSA-14/58 : Author(s): S.J. Parker and S. Mormede (New Zealand)
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Skate tagging in the Heard Island and McDonald Island (Division 58.5.2) toothfish fishery up to 2013
biology of these species. In the 13 years, over 12,000 skates have been tagged, with 112 recaptures, a ... icefish (Champsocephalus gunnari) in the Australian Fishing Zone surrounding Heard Island and McDonald ... bycatches. A tagging program has operated in these fisheries since 2001 to learn more about the movement and ... recapture rate of less than one percent. The average distance between release and recapture for each of the ...
Meeting Document : WG-FSA-13/22 : Author(s): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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Updated progress report on the research fishery for Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa: 2012/13 and 2013/14
recaptured. Even though almost 50% of the recaptures are within season the progress in the northern section ... data to undertake tag-based assessment of the Dissostichus resource in the north of Subarea 48.6. We ... express concern over the rise of IUU activity in Subarea 48.6 and the possible negative consequences for ... as outlined in CM 41-04 (2012 & 2013) during the 2012/13 fishing season. Progress achieved during ...
Meeting Document : WG-FSA-14/67 : Author(s): R. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)
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Has climate change promoted genetic fragmentation in the ice-dependent fish Pleuragramma antarcticum?
anti-clockwise Coastal Current, than in the opposite direction. Reduced level of gene flow along the ... in the central region of the western AP for two consecutive years, all suggest that this sea-ice ... pelagic life cycle and plays a major trophic role in the coastal Antarctic marine ecosystem. A previous ... genetic study investigated the population structure of this species, but used mitochondrial DNA sequencing ...
Meeting Document : WG-FSA-13/67 : Author(s): C. Agostini, T. Patarnello (Italy), J. Ashford, J. Torres (USA) and L. Zane (Italy)
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Research plan for the 2016/17 toothfish fishery in Division 58.4.4b by Japan and France
, respectively, in CPUE analogy method (reference area: northern area of Subarea 48.4) using the relevant ... CCAMLR Secretariat in May 2016. Predicted numbers of tag recaptures from the estimated stock sizes using ... survey design and total sample size of 60 tonnes in order to further strengthen the stock assessments in ... Abstract: Japan and France made the next season’s (2016/17) research plan in research blocks ...
Meeting Document : WG-SAM-16/06 : Author(s): Delegations of Japan and France
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Integrating Climate and Ecosystem Dynamics in the Southern Ocean (ICED) program: developing ICED and CCAMLR joint activities
projections of change in Area 48- Developing projections of the future state of Southern Ocean ecosystems ... Abstract: The Integrating Climate and Ecosystem Dynamics in the Southern Ocean (ICED) programme ... Ocean ecosystems. This will be achieved through the analysis and integration of available data together ... valuable information for ecosystem-based management in the region. Following discussions between ICED and ...
Meeting Document : WG-EMM-17/36 : Author(s): E. Murphy on behalf of ICED SSC
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A feedback management strategy for the krill fishery in Subarea 48.1
Abstract: We present a Stage-2 strategy for in-season feedback management (FBM) of the krill ... to the WG-EMM in 2015 and is based on a broad foundation of work undertaken to address a suite of ... action items specified by the WG-EMM. A decision rule to adjust catches in groups of SSMUs (gSSMUs) is ... consistent with the agreed definition of a Stage-2 strategy, and we advocate that it be trialed in real life ...
Meeting Document : WG-EMM-16/48 : Author(s): G.M. Watters, J.T. Hinke and C.S. Reiss
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Rockhopper penguins and other marine life threatened by driftnet fisheries in the south Atlantic ocean
. Relatively little is known about the areas of operation and impacts of driftnetting in the South Atlantic as ... . This paper reviews the impact of the driftnet fishery on non-target species in the central South ... Abstract: The oriental driftnet fleet, which is responsible for the large scale mortality of non ... -target species in the Pacific Ocean, has extended its range to include the South Atlantic Ocean ...
Meeting Document : CCAMLR-IX/BG/05 : Author(s): Delegation of South Africa
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2016/17
effective tagging survival and tag detection rates, both of which have decreased in the recent years ... of non-convergence in the key biomass parameters. The precautionary yield, using the CCAMLR decision ... Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region (Subareas 88.1 and SSRUs 88.2A–B ...
Meeting Document : WG-FSA-17/37 Rev. 1 : Author(s): S. Mormede
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Practical options for developing feedback management for the krill fishery in Subarea 48.2
might facilitate the development of feedback management procedures for the krill fishery in Area 48. In ... reviewing the state of ecological knowledge for Subarea 48.2, we conclude that movement towards Stage 2 (in ... knowledge base, but that this will take time, especially in the context of climate change. We suggest that ... the Staged approach advocated by WG-EMM) is highly improbable based on the current level of ...
Meeting Document : WG-EMM-14/04 : Author(s): P. Trathan (United Kingdom), M. Santos (Argentina) and O.R. Godø (Norway)