Résultats de la recherche
-
Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys
Abstract: Acoustic surveys carried out in summer and autumn periods of 1987-1989 estimated the ... biomass of myctophids in the Atlantic sector of the Southern Ocean over the region between 48° and 56°S ... and from 8° to 48W at about 1.7 mill.t. Over the larger part of the surveyed area the fish were sparse ... over only restricted areas. The bulk of the biomass has been reported from the region of the Antarctic ...
Meeting Document : WG-FSA-90/19 : Auteur(s): A.A. Filin, K.V. Gorchinsky and V.M. Kiseleva (USSR)
-
Considerations on the design and evaluation of surveys for estimating recruitment of Patagonian toothfish (Dissostichus eleginoides) with preliminary outcomes for the Heard Island plateau region (Division 58.5.2)
Abstract: Assessments of long-term sustainable yield using the Generalised Yield Model and the ... setting of total allowable catches (TAC) for Patagonian Toothfish, Dissostichus eleginoides, for the Heard ... surveys (RSTS) and from targeted commercial fishing operations via an observer program. The current RSTS ... for a range of levels of confidence. The results indicate that while the current and previous survey ...
Meeting Document : WG-FSA-SAM-04/19 : Auteur(s): Candy, S., Constable, A.J., Davies, C.R.
-
Working Plan for the Review of the Admiralty Bay Antarctic Specially Managed Area Management Plan (ASMA No. 1)
Abstract: Brazil has been requested to coordinate the implementation of the review of the ... Management Plan for the Antarctic Specially Managed Area (ASMA) No. 1, Admiralty Bay, King George Island ... , South Shetland Archipelago (herein called the Area). The objective of this paper is to inform CCAMLR ... about the process for the revision and to ask for input into that process following the procedures ...
Meeting Document : WG-EMM-12/61 : Auteur(s): Jaqueline Leal Madruga (Submitted by Brazil on behalf of the ASMA No. 1 Management Group – Brazil, Ecuador, Peru, Poland and the United States)
-
An overview of the elasmobranch fish of the Southern Ocean
Abstract: This review summarises current knowledge of the elasmobranch fish occurring in the ... Antarctic and sub-Antarctic waters of the CCAMLR area. About 14–15 species of elasmobranch have been ... recorded, with skates (Rajiformes) the most speciose order. Two genera of skates are known (Amblyraja and ... Bathyraja), although the current taxonomic knowledge of some species or species-groups is incomplete. Five ...
Meeting Document : WG-FSA-13/28 : Auteur(s): J.R. Ellis, S.R. McCully, V.V. Laptikhovsky and R. Scott (United Kingdom)
-
Preliminary results of the third CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2014
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... abundance from a well-designed survey could be a useful input into the Ross Sea stock assessment model. The ... first survey was completed in February 2012 (), and the second survey was completed in February 2013 ... (Parker et al. 2013). In this paper we provide preliminary results of the third survey in the time series ...
Meeting Document : WG-SAM-14/24 : Auteur(s): S. Mormede, S.J. Parker, S.M. Hanchet, A. Dunn (New Zealand) and S. Gregory (United Kingdom)
-
Exploring variability in the locations used by the krill fishery in Area 48 in relation to intra- and inter-annual variability in seasonal sea ice
Abstract: We present preliminary analyses of krill fishery catch data covering the period ... rapidly from mid May, often extending to cover the whole core fishing area, forcing the fishery to ... relocate by late June. Much of the effort relocates to Subarea 48.3, where the shelf and shelf-break ... fishing areas are normally ice free throughout the winter. In Subarea 48.1 ice cover begins to increase ...
Meeting Document : WG-EMM-14/11 : Auteur(s): J. Silk, S.L. Hill and P.N. Trathan (United Kingdom)
-
Preliminary assessment of mackerel icefish, Champsocephalus gunnari, 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. A lack of ... evidence of strong year classes recruiting to the population has led to a significant decrease in the ...
Meeting Document : WG-FSA-06/43 Rev. 1 : Auteur(s): D.C. Welsford (Australia)
-
The efficacy of video-based electronic monitoring technology for at-sea monitoring of the halibut longline fishery
Abstract: This project involved the large-scale deployment of electronic monitoring (EM) systems ... on the 2002 British Columbia halibut longline fishery to evaluate the feasibility of EM as an ... groupings, and the 15 fish most abundant species accounted for 98% of the catch. Data from fishing trips ... %, and individual identifications by hook agreed in over 90% of the catch records. EM reliably (i.e ...
Meeting Document : WG-FSA-03/100
-
DISTRIBUTION OF KRILL AT THRESHOLD DENSITIES SUITABLE FOR FISHING IN THE ATLANTIC SECTOR: ANALYSIS OF THE 2000 SYNOPTIC SURVEY DATA
Abstract: 1. We used the CCAMLR 2000 synoptic survey acoustic dataset to compare pelagic and ... shelf SSMUs in terms of the frequency of 1nm integration units with krill densities above and below a ... integration units where the threshold density for fishing was set at 100 gm2 following Kasatkina (2003). 3 ... . This was also true with other threshold values in the range 25 to 200 gm2 although the difference was ...
Meeting Document : WG-EMM-08/16 : Auteur(s): S. Hill and D. Agnew (United Kingdom)
-
A PROPOSED MANAGEMENT PROCEDURE FOR THE TOOTHFISH (Dissostichus eleginoides) RESOURCE IN THE PRINCE EDWARD ISLANDS VICINITY
Pessimistic” and a “Pessimistic” current status for the toothfish resource in the Prince Edward Islands region ... are developed which take account of the different selectivities of past longline and pot fisheries ... recommendations for this resource. The MP uses two data sources: the recent trend in longline CPUE and the mean ... length of the catches made. A specific MP, with its associated control parameter values, is proposed for ...
Meeting Document : WG-SAM-08/11 : Auteur(s): A. Brandão and D.S. Butterworth (South Africa)