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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 : Autor(es): 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
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 ... Maru No. 3 to be conducted in April-June 2011. This is the second year of the survey of the 3-5 years ... . 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): J.R. Ashford (United Kingdom) and P.S. Rubilar (Chile)
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A proposed management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
catches made. An MP with control parameter values specified is proposed for implementation based on the ... results of the trials. Given the importance of an adequate catch rate for the economic viability of the ... Paper Title: A proposed management procedure for the toothfish (Dissostichus eleginoides ... , whereas catch-at-length information indicates that past catches have had relatively little impact on ... , Nanaimo, B.C. V9R 5K9, Canada. Alistair Dunn and Andre Punt are thanked for their comments on an ... following proce- dure: 1. Numbers-at-age ( ',y aN ) for the start of the year in which projections ... years (i.e. 2008, 2009, etc. for year y’), the generated longline CPUE abundance indi- ces and longline ... 20-year projec- tion period is zero under all OMs except for the Pessimistic one for which it is ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 33–69 : Autor(es): Brandão, A. and D.S. Butterworth
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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 : Autor(es): 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 : Autor(es): J. Arata (Chile), G. Robertson (Australia), J. Valencia (Chile) and K. Lawton (Australia)
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Considerations for CEMP data collection and submission in relation to using nest cameras to monitor surface-nesting colonial seabirds
are similar, provide comment on nest camera data utility for CEMP, and outline gaps in our assessment ... Abstract: We provide an outline of data that can be generated from nest camera images and ... describe how they relate to the parameters outlined in the CEMP Standard Methods. We discuss where the two ... of their use for this purpose. We provide suggestions for how CEMP data submission forms could be ...
Meeting Document : WG-EMM-18/27 : Autor(es): L. Emmerson and C. Southwell
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Reproductive analysis of Dissostichus mawsoni in SSRU 5841C-a for the exploratory longline fishery in 2012/13 of Korea
Abstract: In the Division 58.4.1 there are two stocks of Dissostichus mawsoni, which is ... analyze the reproductive ecology of Dissostichus mawsoni in SSRU 58.4.1C-a based on the histological ... methods as a part of Korean research plan for Dissostichus spp. in SSRUs 58.4.1 C and E during 2012/2013 ... the female was 2.6, and 1.1 for the male. The hepatosomatic index of the female (2.5) and male (2.3 ...
Meeting Document : WG-SAM-13/27 : Autor(es): I.J. Yeon, J.S. Lee, Y.J. Kwon, M.A. Jeon, S.K. Choi, K.J. Seok, D.W. Lee, K.Y. Ku and H.J. Kim (Republic of Korea)
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The reliability of VHF telemetry data for measuring attendance patterns of marine predators: a comparison with Time Depth Recorder data
Abstract: VHF radiotelemetry data has been used for over thirty years to monitor the behavior ... , suggesting that VHF data is an inappropriate method for collecting attendance data. Modelling the raw VHF ... decreasing cost over the last thirty years, TDRs are a more appropriate means to collect attendance data on ... reproductive and foraging ecology of these species to inferring ecosystem changes based on variation in ...
Meeting Document : WG-EMM-15/P05 : Autor(es): A.D. Lowther, H. Ahonen, G. Hofmeyr, W.C. Oosthuizen, P.J. Nico De Bruyn, C. Lydersen and K. Kovacs