Résultats de la recherche
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Rajid by-catch in the longline fishery for toothfish in Subarea 48.3
Rocks and South Georgia, achieved average catch rates of over 1 ray/thousand hooks, and 20-30 rays ... 34.7/thousand hooks for toothfish and 2.2/thousand hooks for grenadier species. Generalised linear ... models demonstrated that there are significant differences between the catch rates of rays for different ... / thousand toothfish. Catch rates were lowest to the south and east of South Georgia. The two species most ...
Meeting Document : WG-FSA-99/40 : Auteur(s): D.J. Agnew, J. Taylor and I. Everson (United Kingdom)
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A feedback management strategy for the krill fishery in Subarea 48.1
year. We used historical data to conduct retrospective analyses of our FBM strategy for two gSSMUs ... Abstract: We present a Stage-2 strategy for in-season feedback management (FBM) of the krill ... fishery in Subarea 48.1. This strategy is a combination of two strategies that were separately proposed ... penguin recruitment is expected to be sufficient for population maintenance, CEMP monitoring indicates ...
Meeting Document : WG-EMM-16/48 : Auteur(s): G.M. Watters, J.T. Hinke and C.S. Reiss
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OTOLITH-BASED AGEING OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS: MODELLING FIXED AND RANDOM READER ERROR USING MULTIPLE READINGS OF A REFERENCE COLLECTION
calibration require an ageing error matrix as input in order to adequately account for uncertainty in the data ... nearest integer (NI) value deviations, denoted as integer errors (IE), from the mean age for an individual ... Abstract: Integrated assessments that use catch-at-age or abundance-at-age data for model ... describes the methods and results used to provide an ageing error matrix to the HIMI toothfish integrated ...
Meeting Document : WG-FSA-09/21 : Auteur(s): S.G. Candy, G.B. Nowara, D.C. Welsford and J.P. McKinlay (Australia)
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OTOLITH-BASED AGEING OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS: MODELLING FIXED AND RANDOM READER ERROR USING MULTIPLE READINGS OF A REFERENCE COLLECTION
calibration require an ageing error matrix as input in order to adequately account for uncertainty in the data ... nearest integer (NI) value deviations, denoted as integer errors (IE), from the mean age for an individual ... Abstract: Integrated assessments that use catch-at-age or abundance-at-age data for model ... describes the methods and results used to provide an ageing error matrix to the HIMI toothfish integrated ...
Meeting Document : WG-SAM-09/07 : Auteur(s): S.G. Candy, G.B. Nowara, D.C. Welsford and J.P. McKinlay (Australia)
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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Subarea 48.6 by South Africa and Japan
abnormal data for the two vessels in block 48.6_2, therefore we removed the data for the current analysis ... and preliminary CASAL models. We divided the two areas for block 48.6_2 by latitude of 55.2°S to ... addition, we considered that only recaptures for 1 year at liberty is effective to estimate the ... distribution of sizes, GSI and Fulton’s condition factors for D. mawsoni in Subarea 48.6 suggest that northward ...
Meeting Document : WG-SAM-16/07 : Auteur(s): Delegations of Japan and South Africa
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Research plan for toothfish in Divisions 58.4.4a and 58.4.4b by Shinsei Maru No. 3 in 2010/11
Maru No. 3 to be conducted in April-June 2011. This is the second year of the survey of the 3-5 years ... 60,000 kg. The research hauls are allocated on 10-minute latitude x 20-minute longitude grid points ... size for the 2010/11 survey, taking into account the need for completion of the survey and impact on ... . In Division 58.4.4 a & b, we submit this research plan for toothfish in the Division by Shinsei ...
Meeting Document : WG-SAM-10/15 : Auteur(s): Delegation of Japan
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A preliminary model-based approach for estimating natural mortality of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region
region stock assessment for Antarctic toothfish (Dissostichus mawsoni), M is assumed to be 0.13 y-1 and ... constant across age and sex. In 2018, the independent review of the Ross Sea region D. mawsoni stock ... single value for males and females combined, with a uniform prior within the base model used in 2017 for ... simulations suggested that when the rate of natural mortality was assumed in an operating model, it was ...
Meeting Document : WG-SAM-2019/04 : Auteur(s): B. Moore, S. Mormede, S. Parker and A. Dunn
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Interactions between cetaceans and long-lining operations for Patagonian toothfish Dissostichus eleginoides around South Georgia
Georgia, but were not seen on subsequent operations to the north-west of the island. On two occasions ... Abstract: Longlining operations for Dissostichus eleginoides around South Georgia were assessed ... for interactions with sea mammals. Twenty-seven lines were observed and interactions recorded during ... fish/haul for all 27 lines. Sperm whales (Physeter macrocephalus) were also associated with hauling ...
Meeting Document : WG-IMALF-94/16 : Auteur(s): J.R. Ashford (United Kingdom) and P.S. Rubilar (Chile)
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Seabird avoidance measures for small Alaskan longline vessels
Abstract: Given the lack of information on appropriate seabird avoidance measures for small ... (> 26 to 55 feet) using two gear types: snap-on gear and fixed gear. We also determined the ... among vessels and gear types were similar (0.09 to 0.13 for snap on gear vessels and 0.07 m/s for fixed ... gear). We determined that the current single streamer line requirement for snap-on gear vessels over ...
Meeting Document : WG-FSA-05/36 : Auteur(s): E.F. Melvin and M. Wainstein (USA)
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The Evangelistas Islets, Chile: a new breeding site for black-browed albatrosses
from aerial photographs taken on 13 October 2002 which yielded an estimate of the number of breeding ... Lobos Islets, two of the four islets in the Evangelistas group. This new record raises to four the ... breeding site for black-browed albatrosses Approval: Approved ...
Meeting Document : WG-FSA-03/10 : Auteur(s): J. Arata (Chile), G. Robertson (Australia), J. Valencia (Chile) and K. Lawton (Australia)