Résultats de la recherche
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Collection, processing and potential use of sonar data from krill fishing vessels
Abstract: Omnidirectional sonars (herein sonars) are capable of providing an alternative view of ... Antarctic krill distribution, and potentially abundance. Data from sonars can be used independently of ... acoustic surveys. Sonars are capable of sampling large volumes of water and can image entire krill swarms ... vessels. The purpose of this paper is to stimulate discussion on the utility of sonars to describe krill ...
Meeting Document : SG-ASAM-14/01 : Auteur(s): G. Skaret (Norway) and M.J. Cox (Australia)
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longline
combination of socio-economical, ecological and conservation issues. However, estimating the amount of ... indirect methods of assessment of depredated biomass over a 11-year period (from 2003 to 2013), both ... accounting for spatial variations of depredation levels. In the first method, we used fishing data from 6 525 ... longline sets to calculate the difference between Catch Per Unit Effort (CPUE) of non-depredated and ...
Meeting Document : WG-FSA-14/10 : Auteur(s): N. Gasco, P. Tixier, G. Duhamel and C. Guinet (France)
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Fishing behaviour of Chinese krill fishing fleet
Abstract: Understanding the fishing behavior of a kind of fishery is a very important part of ... relationship between distance and frequency distribution of the adjacent krill fishing positions were analyzed ... in the subareas of the Commission for Conservation of Antarctic Marine Living Resources (CCAMLR ... subareas 48.1, 48.2 and 48.3). The frequency of distances between consecutive hauls shows a heavy-tailed ...
Meeting Document : WG-EMM-17/45 : Auteur(s): R. Wang and G.P. Zhu
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Development of a vessel safety checklist and debriefing protocol for use in SISO
Abstract: In accordance with the recommendations of the 2013 Panel Review of the CCAMLR Scheme of ... of SISO recommends the performance of a vessel safety check (see proposed Annex II in CCAMLR-XXXVI/25 ... ) prior to observer deployment, as well as the use of a form and protocol for debriefing observers to be ... approved by the Commission (proposed A(e bis) in CCAMLR-XXXVI/25). This paper provides examples of vessel ...
Meeting Document : CCAMLR-XXXVI/BG/16 : Auteur(s): Delegation of the USA
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Signy Island, South Orkney Islands, 2004/05
Abstract: The results of the ninth annual survey of entanglement of Antarctic fur seals at Signy ... Island, South Orkney Islands are reported for the 2004/05 summer season. There were two sightings of ... seals wearing neck collars of man-made debris, both were sub-adult males entangled with fishing net. In ... ground. The incidence of entanglement at Signy Island, albeit very low, highlights the need for CCAMLR ...
Meeting Document : SC-CAMLR-XXIV/BG/18 : Auteur(s): Delegation of the United Kingdom
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Krill length frequency distribution in Subarea 48.3 in January–April 1988 in relation to sources of its origin
considered in the frame of hypothesis of krill resources forming from two sources: Antarctic Circumpolar ... Current and Weddell Scotia Sea water flow. It is shown, that small krill with the mode of about 33 mm is ... distributed in the coastal zone of about 7-40 miles wide, further is situated the boundary zone at the ... distance of about 30-60 miles, beyond boundary zone occurs larger krill with the mode of about 49 mm. Krill ...
Meeting Document : WG-EMM-03/40 : Auteur(s): F.F. Litvinov, V.N. Shnar, A.V. Zimin and V.V. Lidvanov (Russia)
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On the examining of krill flux
Abstract: In connection with future calculation of volume of krill immigration/emigration (flux ... ) in the choosen polygones, the proves of active long-distance migrations of krill are considered ... results of calculations, is the valuation of krill retention time. To make it more correct and natural it ... is necessary to take into account the biological characteristics of krill, especially for the regions ...
Meeting Document : WG-EMM-95/19 : Auteur(s): Makarov, R.
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Assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005-2014
Abstract: We made two sensitivity runs of age-structured and two fisheries (≥1300 m and < 1300 ... m) CASAL models for stock status assessments of Dissostichus eleginoides in the research block ... 58.4.3a_1 following the recommendations of the WG-FSA-2014 meeting. Two runs were carried out: including or ... ELAN_1 model reflected a large number of recaptures of the tags released concentrated in the western area ...
Meeting Document : WG-SAM-15/24 : Auteur(s): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
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Effects of different harvesting strategies on the mackerel icefish Champsocephalus gunnari around South Georgia
Paper Title: Effects of different harvesting strategies on the mackerel icefish Champsocephalus ... gunnari around South Georgia Abstract / Description: The effects of a number of harvesting strategies on ... the mackerel icefish (Champsocephalus gunnari) have been simulated for a period of 30 years. These ... were: different levels of constant fishing mortality (F 0.1, F max, 2xF max); harvesting constantly at ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 77–100 : Auteur(s): Köster, F.W. and K.-H. Kock
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Results of the tagging experiment for (D. eleginoides) in Subarea 48.4, 2007 update
Subarea 48.4, catching 54 t of toothfish. A total of 291 D. eleginoides and 1 D. mawsoni were tagged and ... released during fishing operations. This represents a very high tagging rate of 5.4 fish per tonne of catch ... distributions of abundance around the fishing area. There were two tag recaptures in 2007, both of D ... . eleginoides. These were recaptured 84km and 14km from their points of release. 3. The UK proposes to continue ...
Meeting Document : WG-FSA-07/32 : Auteur(s): J. Roberts and D.J. Agnew (United Kingdom)