Résultats de la recherche
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Antarctic seafloor geomorphology as a guide to benthic bioregionalisation
features of the Antarctic continental margin and adjoining ocean basins at scales of 1:1-5 million. The ... of the shelf benthic communities recognised by a number of authors. For areas off the shelf, the ... study of sea floor geomorphology from the Antarctic is that there is enough data to available already to ... margin and surrounding oceans. Studies of shelf biota that have tried to link the physical environment ...
Meeting Document : SC-CAMLR-XXVI/BG/27 : Auteur(s): Delegation of Australia
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Investigations on midwater trawling for krill (Euphausia superba) in the Southern Ocean
Abstract: Results of harvesting operations for Antarctic krill (Euphausia superba) in Fishing ... Area 58 in the Indian Ocean Sector of Southern Ocean, during the First Indian Antarctic Krill ... °04'-40°04' E long, from 27 January to 12 February 1996. In the area of operations, krill ... was caught in waters south of 60° parallel (60°43'-6l°00' S), between 32°00-34°05' E ...
Meeting Document : WG-EMM-98/38 : Auteur(s): M.R. Bhoopendranath, M.K.R. Nair, A. Anrose and V.C. George (India)
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An integrated stock assessment for the Heard Island and McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2
eleginoides) fishery at Heard Island and McDonald Islands in CCAMLR Division 58.5.2 with data until end of the ... season 2015/16. The updated assessment model is based on the best available estimates of model parameters ... , the use of abundance estimates from a random stratified trawl survey (RSTS), longline tag-release data ... data to aid with the estimation of year class strength and selectivity functions of the trawl, longline ...
Meeting Document : WG-FSA-17/19 : Auteur(s): P. Ziegler
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Marine Ecosystem Assessment for the Southern Ocean (MEASO)
. MEASO aims to provide a forward-looking assessment of what trends in Southern Ocean ecosystems are ... happening now and into the future, and what may need to be planned for, in terms of research and management ... their management strategies to ecosystem change. MEASO officially began at an international conference ... to share relevant science, enhance community input into the design and planning of the MEASO, and to ...
Meeting Document : SC-CAMLR-XXXVII/BG/22 : Auteur(s): A. Constable, J. Melbourne-Thomas, R. Trebilco and M. Brasier
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Conflict or co-existence? Foraging distribution and competition for prey between Adélie and chinstrap penguins
, their foraging distribution and diet were studied during the chick-rearing period at Signy Island, South ... Orkney Islands during the breeding seasons of 2000 and 2001. Satellite tracking data from of 19 Adélie ... penguins and 24 chinstrap penguins were used to compare foraging distributions. In both years the diet of ... both species was exclusively Antarctic krill (Euphausia superba) of the same size range. In a year of ...
Meeting Document : WG-EMM-02/15 : Auteur(s): A.S. Lynnes, K. Reid, J.P. Croxall and P.N. Trathan (United Kingdom)
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Research plan for toothfish in Division 58.4.4a & b by Shinsei Maru No. 3 in 2013/14
Abstract: We made stock status assessments of Dissostichus eleginoides in SSRUs C and D in ... stating that the sensitivity run of the CASAL model should be made by using levels of IUU ranging from ... CASAL_base model includes estimated variability of YCS for the period from 1989 to 2005, and assumed that a ... quarter of observed IUU fishing in the division had occurred in SSRU C. High estimated stock levels were ...
Meeting Document : WG-SAM-13/21 : Auteur(s): Delegation of Japan
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Revised assessment models for Patagonian toothfish in research block 58.4.4b_1 (SSRU 58.4.4bC) for the years 1990–2014
Abstract: We presented five sensitive runs of single-sex age-structured CASAL models for stock ... status assessments of Dissostichus eleginoides in the research block 58.4.4b_1 in the last WG-SAM meeting ... included all observations. The Working Group, however, requested the further examination of the sensitivity ... consequences of different harvest levels for the time to recovery to the target level. We revised to retain tag ...
Meeting Document : WG-FSA-15/23 : Auteur(s): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
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Habituation to an acoustic harassment device (AHD) by killer whales depredating demersal longlines
return of initial depredation behaviour strongly suggests that AHDs are ineffective at deterring ... fisheries that suffer significant losses caused by odontocete depredation. However, the efficacy of AHDs to ... deter odontocetes from fishing gear remains poorly investigated. To determine the effectiveness of AHDs ... distances of 29 killer whales from the vessel (n = 1,812 records) were collected during 45 phases of AHD ...
Meeting Document : WG-FSA-14/P04 : Auteur(s): P. Tixier, N. Gasco, G. Duhamel and C. Guinet
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Observer notes (Subarea 88.1)
Abstract: Results of biological data analysis of Antarctic fish species from catches of 117 ... Antarctic toothfish was found in long-line catches above seamounts of the Pacific-Antarctic Ridge to the ... North up to 56°S. Presence of Patagonian toothfish in spawning aggregations of Antarctic toothfish ... cannot lead to their intbreeding as its gonads were at the early development stages in that period ...
Meeting Document : WG-FSA-04/89 : Auteur(s): V.G. Prutko (Ukraine)
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ENCOUNTERS WITH VULNERABLE MARINE ECOSYSTEMS IN THE CONVENTION AREA
58.4.1 or 58.4.2 at the time of writing this report. Author(s): Secretariat Title: ENCOUNTERS WITH ... of seven risk areas in Subareas 88.1 and 88.2, and one VME FS rectangle was identified in Subarea ... 88.2. In addition, the Secretariat has received 30 notifications of encounters with VMEs during the ... course of research surveys conducted by the U.S.A. in Subarea 48.1 (17 notifications, seafloor depth 92 ...
Meeting Document : WG-EMM-09/08 : Auteur(s): Secretariat