Résultats de la recherche
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Results of the first winter longline survey to the northern Ross Sea region to investigate toothfish reproductive life history
Abstract: The first winter longline survey of Antarctic toothfish in the northern Ross Sea region ... the 4 strata, and 55.2 t of Antarctic toothfish and 3.4 t of Patagonian toothfish were caught ... . Spawning and spent Antarctic toothfish were captured late in the survey on undersea features to the ... male fish caught during the survey than during the summer fishery (73% vs. 60–65%), and the sex ratio ...
Meeting Document : WG-FSA-16/37 : Auteur(s): D. Stevens, D. Di Blasi and S. Parker
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Preparing for the Year of the Skate: proposed information collection and tagging protocol for skates
Abstract: Skates are an important bycatch of the toothfish fishery in the CCAMLR area and have ... -SAM paragraph 8.10) a review of data requirements and a “Year of the Skate” for 2008–09 whereby data ... skate assessment. This paper discusses improvements to the fishery derived data that may be required to ... better inform an assessment of Ross Sea skates. We propose options for the appropriate collection of such ...
Meeting Document : WG-FSA-07/39 : Auteur(s): S. Mormede, A. Dunn, J. Fenaughty, M. Francis, S. Hanchet, R. O’Driscoll and N. Smith (New Zealand)
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Preliminary assessment of Patagonian toothfish, Dissostichus eleginoides, in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), based on a survey in May–June 2006 using the Generalised Yield Model
58.5.2 in the vicinity of Heard Island in May-June 2006 to provide the information for an assessment of ... short-term annual yield in the 2006/2007 CCAMLR season. This paper provides a preliminary assessment of ... yield for the area of Division 58.5.2 to the west of 79°20’ E using standard CCAMLR methods. It also ... investigates the impact on the recruitment series and predicted yields of: i) excluding the unusually high ...
Meeting Document : WG-FSA-06/45 Rev. 1 : Auteur(s): D.C. Welsford, A.J. Constable, T. Lamb and T. Robertson (Australia)
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A review of rattail (Macrourus spp.) and skate by-catch and analysis of standardised CPUE, for the exploratory fishery in the Ross Sea (CCAMLR Subareas 88.1 and 88.2) from 1997/98 to 2004/05
rattails (Macrourus spp.) and skates in the exploratory fishery for toothfish in the Ross Sea (CCAMLR ... Subareas 88.1 & 88.2). The analysis was based on fine-scale haul-by-haul (C2) data and observer data ... from all vessels in the fishery from 1997/98 to 2004/05. The major factors influencing rattail bycatch ... were vessel, area, and depth. Catch rates of rattails were highest along the shelf edge (SSRUs 88.1E ...
Meeting Document : WG-FSA-05/24 : Auteur(s): S.L. Ballara and R.L. O’Driscoll (New Zealand)
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Review of the CEMP standard methods and their delivery to the CEMP database
Abstract: This paper reports on the discussions that occurred among individuals tasked by the WG ... -EMM to continue review of the CEMP Standard Methods and their delivery to the CEMP database. The ... discussions were diverse in covering a wide range of parameters, methods and issues, but in the limited time ... available it was not possible to discuss all aspects of CEMP. The issues considered are presented under ...
Meeting Document : WG-EMM-04/70 : Auteur(s): C. Southwell, J. Clarke (Australia), K. Reid (United Kingdom), G. Watters (USA) and D. Ramm (CCAMLR Secretariat)
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Information on the spawning season and gonadosomatic indices of Dissostichus mawsoni from Subarea 88.1 in the 2001/02 season
Dissostichus mawsoni were collected from Sub-area 88.1 in the 2001-2002 season by the New Zealand bottom ... longline vessels Janas and San Aotea II operating in the Exploratory Fishery. The onset of the spawning ... season was identified as late autumn (May). A significant difference in the condition of fish between ... summer and autumn was noted, and this may be a result of migration f or spawning. The maximum GSI ...
Meeting Document : WG-FSA-02/31 : Auteur(s): G.J. Patchell (New Zealand)
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Revised estimates of seabed areas within the 500 m isobath of the South Orkney Islands (Subarea 48.2) and consequences for standing stock biomass estimates of nine species of finfish
Abstract: A revised bathymetric map of the South Orkney Islands (Subarea 48.2) was generated ... using several integrated bathymetric databases and newly available acoustic seafloor data. The region ... extends from 60.2ºS-62.2ºS latitude and 42.5º-47.5º longitude. From the integrated data sets, areas of ... seabed within the 500 m isobath were computed for 50 m depth intervals. Areas were calculated based on ...
Meeting Document : WG-FSA-99/33 : Auteur(s): C.D. Jones (USA)
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AND DOMESTIC SUBANTARCTIC FISHERIES BY THE AUSTRALIAN ANTARCTIC DIVISION AND THE AUSTRALIAN FISHERIES MANAGEMENT AUTHORITY
the Australian Fisheries Management Authority (AFMA), with technical and data management support from ... the Australian Antarctic Division (AAD). Australian observers work on both trawl and longline vessels ... targeting finfish in the CCAMLR area. As the assessments and conservation measures employed by CCAMLR ... increase in sophistication, the tasks required to be completed by observers are increasing in number and ...
Meeting Document : TASO-08/05 : Auteur(s): O’Regan, K., Welsford, D., Robertson, T., Lamb, T.
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New corrections factors for the quantification of fish represented in pellets of the blue-eyed shag Phalacrocorax atriceps
cast) of the blue-eyed shag or imperial cormorant Phalacrocorax atriceps collected throughout the ... necessary for the quantification of fish represented in pellets. These factors were obtained for Notothenia ... , Notolepis coatsi and Electrona antarctica were represented in pellets but not found in the stomach contents ... . Fish were the main prey and N. coriiceps and H. antarcticus were the dominant species both in mass and ...
Meeting Document : WG-EMM-95/83 : Auteur(s): Silva, P., Casaux, R., Favero, M., Barrera-Oro, E.
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Length-age composition of the Patagonian toothfish, Dissostichus eleginoides, from the Kerguelen Island area
Abstract: Results of length-age composition studies of the Patagonian toothfish, Dissostichus ... eleginoides, from various fishing grounds of the shelf and continental slope areas of the Kerguelen Islands ... are presented and discussed in the paper. Detailed results of these studies are compiled in tables ... . Soviet vessels had first carded out fishery for the species in the 1984/85 season. Fishing grounds during ...
Meeting Document : WG-FSA-92/08 : Auteur(s): V.G. Prutko and V.N. Chikov (Ukraine)