Search results
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Annual migrations of pelagic fish stocks into a krill hotspot
Abstract: We report here on the existence of seasonal fish migrations into a krill hotspot ... from krill on a single frequency. Trawl catches in the area during 2019 gave high densities of mackerel ... frequency response may be similar to that of krill at the commonly used frequencies of 38 and 120 kHz ... . Author(s): T. Klevjer Title: Annual migrations of pelagic fish stocks into a krill hotspot Approval ...
Meeting Document : WG-EMM-2019/33 : Author(s): T. Klevjer
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An updated information of the Japanese krill fishery in the Antarctic
Abstract: Annual summary of Japanese krill fishery in the Antarctic was updated with delineation ... of two different type of operation. Operated areas in 1983/84 and 1984/85 seasons were illustrated ... updated information of the Japanese krill fishery in the Antarctic Approval: Approved ...
Meeting Document : WS-KCPUE-85/05 : Author(s): Y. Shimadzu (Japan)
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Schedule for the Thirty-third Meetings of the Commission and the Scientific Committee
-XXXIII and CCAMLR-XXXIII Registration for SC-CAMLR-XXXIII and CCAMLR-XXXIII 16:00- Meeting of the ... Commission Heads of Delegations directly following the Heads of Delegations meeting of the Commission ... Meeting of the Scientific Committee Representatives Monday, 20 October Time Commission Scientific ... . Organisation of meeting 7.2 Introduction of new Measures 10:30-11:00 Refreshment Break 11:00-12:30 SCIC 3 ...
Page : Site Section: Meetings
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Standardised CPUE analysis of the Antarctic toothfish (Dissostichus mawsoni) fishery in the Ross Sea for the years 1997/98 to 2005/06
) since 1997 in CCAMLR Subareas 88.1 and 88.2. Previously, standardised analysis of toothfish CPUE (catch ... fishing years. This report revises and updates the previous analysis with the addition of data from the ... vessels to set lines, in addition to extreme ice conditions that limited where lines could be set. None of ... learning and experience, including improved knowledge of optimum fishing practise, and improvements in gear ...
Meeting Document : WG-FSA-06/47 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
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At-sea distribution and prey selection of Antarctic petrels and commercial fisheries
Abstract: Commercial fisheries may impact marine ecosystems and affect populations of predators ... superba that is projected to increase further. Comparing distribution and prey selection of fishing ... the ones breeding far away and that disperse during the non- overlap between the distribution of the ... Antarctic krill fisheries and the distribution of a krill dependent seabird, the Antarctic petrel ...
Meeting Document : WG-EMM-16/P15 : Author(s): S. Descamps, A. Tarroux, Y. Cherel, K. Delord, O.R. Godø, A. Kato, B.A. Krafft, S.-H. Lorentsen, Y. Ropert-Coudert, G. Skaret and Ø. Varpe
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Preliminary results from a study examining spatial structure and connectivity in Patagonian toothfish (Dissostichus eleginoides) in the South Atlantic section of the Southern Ocean
of otoliths from Patagonian toothfish (Dissostichus eleginoides), and examined whether the elemental ... American continental shelf near the Falkland Islands. Furthermore, we examined the elemental signatures of ... been taken from different locations. We found signatures on the otolith edge of fish from South Georgia ... and Shag Rocks showed distributions characterized by lower levels of Mn/Ca than samples from the FOCZ ...
Meeting Document : WG-FSA-03/86 Rev. 1 : Author(s): J.R. Ashford (USA), A. Arkhipkin (United Kingdom) and C.M. Jones (USA)
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Summary of toothfish tagging suitability data from paired Spanish line – trotline sets
only tag fish with a high probability of survival. Further it recommends that fish hooked only in the ... mouth should be tagged. A new data collection form was implemented in 2012 to allow evaluation of fish ... these data and data from tag release forms to assess suitability of captured toothfish for tagging. Data ... tagging was most related to species, soak time, and fish size. For both gear types, an adequate number of ...
Meeting Document : WG-FSA-12/49 : Author(s): S. Parker and D. Fu (New Zealand)
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Distribution and biology of grey notothen (Lepidonotothen squamifrons) around South Georgia and Shag Rocks (Southern Ocean) CCAMLR Subarea 48.3.
east of Shag Rocks and the west of South Georgia. Reliable biomass estimates were not possible due to ... recognisable cohort progression and a trend of increasing size over time indicating a potential recovery of the ... knowledge of L. squamifrons in this region will be valuable in future research on habitat and foodweb ... ) Title: Distribution and biology of grey notothen (Lepidonotothen squamifrons) around South Georgia and ...
Meeting Document : WG-FSA-12/34 : Author(s): S. Gregory, J. Brown and M. Belchier (United Kingdom)
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Estimation of tag-loss rates for tagged fish in the Patagonian toothfish (Dissostichus eleginoides) fisheries at Heard Island and McDonald Islands in Division 58.5.2
fish. With an initial tag-loss proportion of 2.8% and ongoing tag-loss rate of 0.056 in the longline ... fishery, 99.3% of all double-tagged fish retain at least one tag after one year, and 80.2% after ten years ... . The parameter of annual tag-loss rate in CASAL’s single-tag model was approximated, for a maximum time ... at liberty of 6 years, as l = 0.014 for longline and l = 0.007 for trawl. However, this single tag ...
Meeting Document : WG-FSA-17/21 : Author(s): P. Ziegler
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Implementation of the modified Petersen mark–recapture method in S-Plus
Abstract: The mark-recapture method of estimating toothfish population size described last year ... , which uses a modification of the Petersen estimator to take account of mortality and selectivity, is ... : Implementation of the modified Petersen mark–recapture method in S-Plus Approval: Approved ...
Meeting Document : WG-FSA-SAM-05/7 : Author(s): A. Payne, D.J. Agnew and R. Hillary (United Kingdom)