Search results
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Bayesian data-model synthesis for biological conservation and management in Antarctica
Abstract: This paper introduces a proposed data integration and assimilation tool to assist the ... and distribution. The engine of this decision-support tool is a physically-based algorithm for ... predictions from state-space models of population change. The DBN model synthesizes this data flow into policy ... ready metrics of Adélie penguin abundance at any user defined spatial or temporal scale. The results ...
Meeting Document : WG-EMM-13/26 : Author(s): H.J. Lynch and M. Schwaller (USA)
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Vast assembly of vocal marine mammals from diverse species on fish spawning ground
. The system transmits broadband signals from 700- 1500 Hz and a towed array receives the returned ... echoes used in the assessment of prey abundance and distribution. Periodically, only the receiver array ... was operated to listen to whale vocalization. The vocalization identifies the animals and the long ... predators and prey. The Ocean Acoustic Waveguide Remote Sensing (OAWR) system is at present tailored to ...
Meeting Document : WG-EMM-16/P01 : Author(s): D. Wang, H. Garcia, W. Huang, D.D. Tran, A.D. Jain, D.H. Yi, Z. Gong, J.M. Jech, O.R. Godø, N.C. Makris and P. Ratilal
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Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2018/19 by Japan and South Africa
Abstract: Japan and South Africa propose to continue investigating the population structure and ... various demographic parameters of Antarctic toothfish (Dissostichus mawsoni) in the Subarea 48.6 in 2018 ... /19 using standardized longline gear, established tagging techniques, and pop-up tags. The proposed ... research is pertinent to issues raised by the Scientific Committee (SC-CAMLR-XXXV, paragraph 3.3.252-3.265 ...
Meeting Document : WG-SAM-18/04 : Author(s): Delegations of Japan and South Africa
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Improving mechanistic understanding between larval krill, krill recruitment, and sea ice
Abstract: Antarctic Krill, Euphausia superba, is the key species of the Southern Ocean ecosystem ... . Earlier analysis suggested decrease in krill abundance by 50% since the mid 1970’s to early 2000’s in the ... , timing and the duration of winter sea ice cover. The underside structures of sea ice are generally ... fundamental question for designing our future management approach for the krill fishery. The intention of this ...
Meeting Document : WG-EMM-18/07 : Author(s): B. Meyer and S. Kawaguchi
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Method of age determination for Antarctic toothfish (Dissostichus mawsoni)
Abstract: This work is based on material from Antarctic toothfish, collected in the Ross Sea from ... December 2004 to March 2005 on the longliner “Volna”. Age was determined for 364 individuals. Currently ... widely applicable "the break and burn method" was used in the present work (Chilton, Beamish ... , 1982; Penttilla, Dery, 1988). According to the method, otolith is broken into two parts across the core ...
Meeting Document : WG-SAM-12/18 : Author(s): E.N. Kyznetsova, A.F. Petrov and V.A. Bizikov (Russia)
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Distribution and biological characteristics of two toothfish species of genus Dissostichus (family Nototheniidae) off Bouvet Island
) toothfish, were registered during the fishery on Dissosyichus spp. on the shelf edge and slope of Bouvet ... Island. Their commercial concentrations were found also on the neighboring underwater plateaus ... surrounding the island. The vertical distribution of two species was differentiated distinctly, with the ... crossover point at depth of 1300 m. For both species the size and weight compositions were studied; indices ...
Meeting Document : WG-FSA-11/17 : Author(s): A.F. Petrov (Russia)
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Abundance of Patagonian toothfish (D. eleginoides) at Macquarie Island estimated from tagging studies during 1995/96 fishing season
presents an analysis of a tag-recapture experiment carried during the Macquarie Island fishery for this ... species during the 1995-96 season. Simple population and tag accumulation models are used to account for ... the tags being released at various times throughout the season, and the effects of the removals by ... obtained for the pre-fishing abundance of the population in the season of 996 000 fish. However, this is ...
Meeting Document : WG-FSA-96/39 : Author(s): de la Mare, W., Williams, R.
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Beach debris surveys - Prince Edward Islands, 1993 to 1995
Abstract: Beach debris surveys conducted at the South African Prince Edward Islands are reported ... for the years 1993/1994 and 1994/1995, the latter period following the CCAMLR standard method for ... surveys of beached debris within the Convention area. Most non-wooden artefacts were plastic. Fishing ... floats and other fishing gear formed a variable proportion of the items surveyed. Artefacts that could be ...
Meeting Document : CCAMLR-XIV/BG/14 : Author(s): Delegation of South Africa
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Marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 1994/95
Abstract: This report describes and quantifies the occurrence of marine debris and fishing gear ... associated with seabirds in the same way as in 1993/1994. In 1994/1995 there was a decrease in both the ... , the decrease is due at least in part to, first, fewer birds examined than last year as a consequence ... of the very low breeding numbers of mollymawks at Bird Island in 1994/1995 and, second, because the ...
Meeting Document : SC-CAMLR-XIV/BG/09 : Author(s): Delegation of the United Kingdom
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Proposed updates to CEMP data e-forms and a review of CEMP Standard Methods
Abstract: Updates to the CEMP data submission e-forms for parameters A3 and A8 have been proposed ... the method descriptions for these parameters in the CEMP Standard Methods manual. However, given the ... age of this document and that the last review of the manual was completed in 2004, the Secretariat ... proposes a review of the manual intersessionally by the CEMP e-group in order to ensure that it is meeting ...
Meeting Document : WG-EMM-18/46 : Author(s): CCAMLR Secretariat