Search results
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Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2012/13
Island, South Orkneys and at Goudier Island, Antarctic Peninsula for the period April 2012 to March 2013 ... hydrocarbon soiling at any of the four sites during the reporting period. Overall, the occurrence of beached ... marine debris was below the long-term mean at Bird Island during both summer and winter and was the ... lowest recorded in 23 years of summer surveys at Signy Island, possibly due to sea-ice coverage at the ...
Meeting Document : SC-CAMLR-XXXII/BG/05 : Author(s): Delegation of the United Kingdom
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Distribution, density and relative abundance of Antarctic krill estimated by maximum likelihood geostatistics on acoustic data collected during commercial fishing operations
Abstract: There is a substantial harvestfor Antarctic krill in the Southern Ocean, butlittle ... regular scientific monitoring of the resource. Recently, however, the Commission for the Conservation of ... fisheries to increase the amount of relevant information available for making management decisions. We here ... the vessel ‘Saga Sea’ were processed to produce probability of presence, conditional density and ...
Meeting Document : WG-EMM-16/P12 : Author(s): E.J. Niklitschek and G. Skaret
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Evaluation of some processing techniques applied to acoustic recordings from two krill fishing vessels
Abstract: Acoustic data from krill fishing vessels have the potential to provide useful ... contributions to assess local krill abundance and distribution, and even as input to the CCAMLR feedback ... management system under development. The possibility to collect such data from the fleet has been ... demonstrated through a CCAMLR proof of concept, but processing is in most cases essential before any use of the ...
Meeting Document : SG-ASAM-17/03 : Author(s): X. Wang, G. Skaret and O.R. Godø
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Assessing data requirements for tag-based estimates of local biomass in data-poor and exploratory fisheries
Research Block 5843a_1 with a fixed exploitation rate and various tagging rate scenarios to assess the ... impact on the numbers of tagged fish recaptures and accuracy of tag-based estimates using the Chapman ... estimator. The results showed that tag-based biomass estimates obtained from a low numbers of recaptures ... Chapman-estimates to achieve a 25% level of accuracy at least 50% of the time, required a minimum of 6 ...
Meeting Document : WG-SAM-17/13 : Author(s): L. Robinson, P. Burch and K. Reid
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Revised continuation proposal of multi-Member research on Patagonian toothfish (Dissostichus eleginoides) exploratory fishery in 2018/19 in Division 58.4.3a by France and Japan
Abstract: France and Japan revised a research plan to continue investigating the populations of ... Patagonian toothfish (D. eleginoides) in the Division 58.4.3a during the next fishing seasons from 2017/18 ... Division, research fishing has been conducted by France and Japan since 2012 in the research block by three ... ” (France). The first Franco-Japanese exploratory longline fishery research plan for Dissostichus spp. in ...
Meeting Document : WG-FSA-18/61 : Author(s): Delegations of France and Japan
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Numerical model of ecosystem including Euphausia superba Dana as a key species in circumpolar region
Abstract: On the processes to investigate a proper model for understanding the processes that ... govern the biochemical cycle in Antarctic Ocean, we made a research plan as follows: (1) to develop an ... ecology (4) to develop a numerical model to couple the OGCM and ecosystem models (5) to develop a ... numerical model including the effect of marine mammal consumption and catch of krill (6) to develop the ...
Meeting Document : WG-Krill-94/26 : Author(s): M.J. Kishi and M. Naganobu (Japan)
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Updated species profile for Antarctic toothfish (Dissostichus mawsoni)
Abstract: A species profile, covering aspects of the biology, fisheries and stock assessment of ... , and depredation. It focused primarily on the biology of D. mawsoni based on information collected from ... the Ross Sea fishery because that was where most of the work had been carried out. The aim of the ... current work was to update and revise the species profile of Hanchet (2006). It updates, collates, and ...
Meeting Document : WG-FSA-10/24 : Author(s): S.M. Hanchet (New Zealand)
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Adélie penguin breeder abundance in CCAMLR Divisions 58.4.1 and 58.4.2
Abstract: WG-EMM-STAPP is charged with estimating krill consumption by the major air-breathing ... predators of the Southern Ocean including ice-breeding seals, fur seals, penguins and flying seabirds. The ... priority region for estimation is Area 48, but the krill consumption estimates are also being developed for ... other regions around Antarctica under the work program of WG-EMM-STAPP as a basis for management of ...
Meeting Document : WG-EMM-13/09 : Author(s): C. Southwell, J. McKinlay, L. Emmerson (Australia), A. Takahashi (Japan), C. Barbraud, K. DeLord and H. Weimerskirch (France)
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Review of cetacean depredation in CCAMLR statistical subareas
Abstract: Depredation, the removal of fish from longlines by large marine predators, has been ... observed throughout the CCAMLR management area. Loss of fish through depredation can cause financial loss ... to the toothfish fishing industry and if not considered appropriately may lead to a bias in stock ... assessments through the underestimation of total mortality resulting from fishing and depredation combined. In ...
Meeting Document : WG-SAM-15/27 : Author(s): M. Soeffker (United Kingdom) and P. Tixier (France)
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Krill fishery report: 2005 update
Abstract: This report on the krill fishery in Area 48 has been prepared in a format similar to ... the “Fishery Reports” developed by WG-FSA in 2004. As reported to the CCAMLR Secretariat, 9 vessels ... from 6 Contracting Parties are fishing for krill in Area 48 in the 2004/05 season, and these vessels ... have taken 62049 t of krill to date. Two CCAMLR scientific observers have been deployed. The ...
Meeting Document : WG-EMM-05/5 : Author(s): Secretariat