Résultats de la recherche
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Towards developing a feedback management procedure for the Antarctic krill fishery
spatial distribution of fishing activity for Antarctic krill in Statistical Area 48. The CEMP currently ... fishery and are sensitive to changes in the marine ecosystem (e.g. series that indicate predator abundance ... CEMP sites (e.g. relationships between animal condition and subsequent survival). If a feedback ... strategy for the krill fishery includes comparison of predator performance in no-fishing areas, these ...
Meeting Document : WG-EMM-12/44 : Auteur(s): G. Watters and J. Hinke (USA)
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Evaluation of the effects of illegal, unregulated and unreported (IUU) fishing on the legal catch of fisheries for Dissostichus eleginoides
result in a closure of the legal fisheries in the Indian Ocean within the next 12 years because it is in ... is low because the effects of IUU fishing are averaged out in the assessment process over 35 years ... Abstract: CCAMLR currently establishes catch limits each year for Patagonian toothfish ... illegal, unregulated and unreported (IUU) fishing for toothfish in the CCAMLR area threatens the success ...
Meeting Document : WG-FSA-02/69 : Auteur(s): A.J. Constable (Australia)
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An approach to feedback management (FBM) of the krill fishery based on routine acoustic data collection and intermittent land-based predator studies
level in the fishery of Antarctic krill in Subareas 48.1 through 48.4 (CM 51-07) has continuously been ... strictly not in line with the CCAMLR ecosystem approach to management. FBM has been considered an ... , understandable and robust relationships which in turn creates trust by the stakeholders and will enable an ... -xxxvi-bg-20.docx Approval: Approved Secretariat Workflow Status: Content Approved Delegation ...
Meeting Document : SC-CAMLR-XXXVI/BG/20 : Auteur(s): Delegations of Norway, China and Chile
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New CCAMLR SISO Observer Manuals and updated longline logbook
data collection for a focussed skate tagging programme in the Ross Sea, beginning in the 2020 season ... requirements. In addition a new version of the observer longline logbook is presented, with additions to allow ...
Meeting Document : WG-EMM-2019/75 : Auteur(s): CCAMLR Secretariat
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An update of the ageing program for Patagonian toothfish (Dissostichus eleginoides) at the Australian Antarctic Division, including a summary of new data available for the Integrated Stock Assessment for the Heard Island and the McDonald Islands fishery (Division 58.5.2)
greater than 20 years) available for use in the current assessment (Ziegler et al., 2014). Author(s ... in relation to the laboratory processing of otoliths and quality control in the assignment of fish ... capacity for ageing and at a lower cost per otolith. Greatest efficiency gains have been made in the ... laboratory, with otoliths now set in smaller resin blocks that take much less time to section, and in quality ...
Meeting Document : WG-FSA-14/45 : Auteur(s): B.M. Farmer, E.J. Woodcock and D.C. Welsford (Australia)
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Measurements of sound-speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru
Abstract: In order to calculate the target strength of Antarctic krill (Euphausia superba) using ... -density contrasts between the animal and the surrounding water are required. Sound-speed and mass-density ... of krill were measured during the Antarctic surveys conducted by the Japanese RV Kaiyo Maru in 1999 ... South Shetland Islands in February 2000. These were 21.7mm and 1.049, and 45.1mm and 1.043 in the Ross ...
Meeting Document : WG-EMM-08/56 Rev. 1 : Auteur(s): Y. Takao, H. Yasuma, R. Matsukura, K. Amakasu and M. Naganobu (Japan)
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Aggregation patterns of pelagic predators and their principal prey, Antarctic krill, near South Georgia
differences in foraging strategies. Published in Journal of Animal Ecology (1993) 62, 000-000 Author(s): R.R ... is an explicit consideration of the separation in space between swarms of krill and aggregations of ... predators that feed upon krill. 2. Our data were collected in February 1986, during a systematic shipboard ... seals were distributed in a strikingly non-random fashion at sea near South Georgia; their ...
Meeting Document : WG-CEMP-93/13 : Auteur(s): R.R. Veit (USA), E.D. Silverman (USA) and I. Everson (United Kingdom)
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Preliminary report of sound-speed contrast and density of krill measured on board RV Kaiyo Maru
) and the other is the ratio of the sound speed in animal to that in the surrounding water (sound-speed ... improve the accuracy and precision of the TS value. Since in situ and experimental TS measurements of ... still few. During Antarctic surveys of the Japanese R/V Kaiyo Maru in 2000 and 2004/ 2005, the ... mean total length and mean density were 43.5mm and 1.0562gcm-3, respectively in 2000 survey, and were ...
Meeting Document : WG-EMM-05/36 : Auteur(s): Y. Takao, H. Yasuma, R. Matsukura and M. Naganobu (Japan)
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NCP Engagement Strategy and review
Abstract: Efforts to engage NCPs have so far met with modest success. The Secretariat proposes to ... work with Members on a new approach in 2019, targeting NCPs that are important in toothfish trade with ...
Meeting Document : CCAMLR-XXXVII/BG/07 : Auteur(s): CCAMLR Secretariat
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Update of the integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands (Division 58.5.2)
Heard and McDonald Islands (Division 58.5.2) was updated from WG-FSA-09/20. The main change other than ... uncertainty about annual estimates but given this caveat they are useful in tracking observed and CASAL ... -estimated trends in catch rates. A change of substantial consequence from the 2009 integrated assessment was ... . Neither of these values of M was estimated in CASAL but the value of 0.155 was estimated externally to ...
Meeting Document : WG-FSA-11/24 : Auteur(s): S.G. Candy and D.C. Welsford (Australia)