Résultats de la recherche
-
A feasibility study for stock assessment of D. mawsoni in the Ross Sea (Subares 88.1 and 88.2) using a tag and recapture experiment
Abstract: This paper reports on a feasibility study into a tag and recapture experiment for the ... purpose of stock assessment of the Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea. An ... -98 to nearly 1800 t in 2002-03. Although some Patagonian toothfish (D. eleginoides) are taken in the ... 90% D. mawsoni) have been tagged and released in the area, from vessels operating in the exploratory ...
Meeting Document : WG-FSA-SAM 03/10 : Auteur(s): K.J. Sullivan, N.W.McL. Smith, J. McKenzie and S.M. Hanchet (New Zealand)
-
Utilising data from ecosystem monitoring for managing fisheries: development of statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program
Abstract: A potential method is presented for combining data collected as part of the CCAMLR ... parameters. The paper is divided into four main parts. The first part develops the proposed method of forming ... summary indices, which is based on the usual theory of multivariate statistics and takes into account the ... covariance between parameters. The second part reports on a Monte Carlo simulation study that examines the ...
Meeting Document : WG-EMM-00/14 Rev. 1 : Auteur(s): W. de la Mare and A. Constable (Australia)
-
Assessment models for Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–G for the years 2002–03 to 2010–11
Abstract: This paper describes the first Bayesian sex and age structured population stock ... , and G (SSRUs 88.2C–G). For modelling purpose, we split the region into two fisheries: south of 70.2° S ... fish are caught and most of the effort has been concentrated. For our reference case we used a selected ... trips data set and fitted to tag and fishery data from the northern fishery only. Model fits to the data ...
Meeting Document : WG-FSA-11/43 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
-
THE RESEARCH PROJECT TO DIGITIZE HISTORICAL SOVIET KRILL FISHING EXPEDITION DATA
Abstract: The research project to digitize former Soviet krill fishing research, exploratory and ... commercial expedition’s data has been started in Ukraine at the Southern Research Institute of Marine ... expeditions in Southern Ocean between the years of 1972-1992. The main purpose of these expeditions was to ... collect data and samples and to create an estimation of the commercial exploitation of the Antarctic krill ...
Meeting Document : WG-EMM-09/30 : Auteur(s): L. Pshenichnov and G. Milinevsky (Ukraine)
-
METHODOLOGY OF EVALUATING THE AQUATIC LIFE RESOURCES
Abstract: ic life is developed in accordance with the rules of metrology, mathematical statistics ... and using the biocenological regularities of water objects. The basis of evaluating the stocks of ... water life was investigated through biocenotic conditionality in the areas of their equal probability in ... concentrations. The traditional method of squares in evaluating the stocks of water life was modernized with the ...
Meeting Document : WG-SAM-08/P02 : Auteur(s): L.A. Kovalchuk (Ukraine)
-
Analysis of variables influencing finfish by-catch in the krill fishery in Area 48
Abstract: This report presents the results of a method used to explore potential explanatory ... variables influencing finfish bycatch in the krill fishery of Area 48. Records of finfish bycatch in the ... Area 48 krill fishery collected by observers on the FV Saga Sea were analysed over the period 2007/08 ... -2011/12. The majority of fish caught were either small juveniles or larvae, dominated by Myctophidae ...
Meeting Document : WG-EMM-12/28 : Auteur(s): S.M. Martin, T. Peatman, J. Moir Clark (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)
-
A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
Abstract: We analysed the available data from vessel and scientific observer logbooks from the ... ) in CCAMLR subarea 48.6 (South East Atlantic). This report summarises the catch, effort, timing, depth ... , location, size structure and maturity of Dissostichus spp. Information on the composition of bycatch ... species caught in the fishery over the period 2003-4 to 2011-12 are also presented. For the Antarctic ...
Meeting Document : WG-SAM-12/33 : Auteur(s): R. Wiff (Chile), M. Belchier (United Kingdom) and J. Arata (Chile)
-
A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
Abstract: We analysed the available data from vessel and scientific observer logbooks from the ... ) in CCAMLR subarea 48.6 (South East Atlantic). This report summarises the catch, effort, timing, depth ... , location, size structure and maturity of Dissostichus spp. Information on the composition of bycatch ... species caught in the fishery over the period 2003-4 to 2011-12 are also presented.. For the Antarctic ...
Meeting Document : WG-FSA-12/38 : Auteur(s): R. Wiff (Chile), M. Belchier (United Kingdom), J.C. Quiroz and J. Arata (Chile)
-
A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2014–15
Abstract: This report summarises the timing, depth, and location of fishing effort together with ... biological characteristics of the catch of Antarctic toothfish up to and including the 2015 season. In 2015 ... , the Ross Sea slope SSRUs were significantly constrained by sea ice and catches were unevenly ... distributed across the three SSRUs (73% in 88.1H, 22% in 88.1K and 5% in 88.1I). As in recent years, the ...
Meeting Document : WG-FSA-15/36 : Auteur(s): K. Large, S.M. Hanchet and S. Mormede (New Zealand)
-
Performance metrics to index the spatial coverage of mark-recapture data
Abstract: Understanding the spatial distribution of the release of tagged fish and the subsequent ... interpreting the biomass estimated from mark recapture data. In 2015, the Scientific Committee identified that ... measures of spatial overlap and potential bias in the development of tag-based biomass estimates are an ... new biomass-weighted spatial overlap summary statistics for tagging data. The method calculates two ...
Meeting Document : WG-SAM-16/13 : Auteur(s): C. Marsh, A. Dunn and S. Mormede