Search results
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New Zealand: Review of the Ross Sea region stock assessment
88 Population model • Single stock (88.1 + SSRUs 88.2A-B) • Areas as fisheries – Shelf, slope ... (sum of biomass at age * maturity ogives) – Uniform-log prior • Selectivity for each fishery ... -recapture data from vessels (C2) • Length/age, weight from observers (observer logbook) • Standardised ... Ross Sea shelf survey data (C2 and observer logbook) • Age-length keys by year: North vs Slope/shelf ...
Document : Site Section: Meetings
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An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort
and when good knowledge exists that zero observations reflect zero illegal fishing. The new method performs ... by illegal activity. Both the new and the current method suffer from the fact that the observation method ... is adequate under circumstances of low evasion and when good knowledge exists that zero observations reflect ... from the fact that the observation method used directly affects the system. This is the prevention ... this document. In the simplest case one would like to determine how to scale the number of observations ... is adequate under circumstances of low evasion and when good knowledge exists that zero observations refl ect ... suffer from the fact that the observation method used directly affects the system ... to, the precautionary assessment with some given level of confi dence (for example 80%). Résumé Le présent document ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 143–161 : Author(s): Ball, I
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Conservation Measure Conservation Measure 22-06 (2007)
that each vessel carries at least one CCAMLR-designated scientific observer to collect data in accordance ... by Members to implement the CCAMLR precautionary and ecosystem approaches to fisheries management ... , adopted on 8 December 2006, calls on regional fisheries management organisations or arrangements ... with the competence to regulate bottom fisheries to adopt and implement measures to prevent significant adverse ...
Conservation Measure : 22-06 (2007)
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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
of 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 ... determine factors influencing catch rates of skates from either C2 or observer data because a proportion ...
Meeting Document : WG-FSA-05/24 : Author(s): S.L. Ballara and R.L. O’Driscoll (New Zealand)
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Research and monitoring to support an MPA in the Ross Sea Region
that such research and monitoring plans shall, to the extent necessary and inter alia, specify “(a) scientific ... and monitoring plans shall, to the extent necessary and inter alia, specify “(a) scientific research ...
Meeting Document : WG-EMM-12/46 : Author(s): G.M. Watters and C.S. Reiss (USA)
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Results of the third CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2014 and development of the time series
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... At its 2011 meeting, the Scientific Committee agreed that a time series of relative abundance from ...
Meeting Document : WG-FSA-14/51 : Author(s): S. Mormede, S.J. Parker, S.M. Hanchet, A. Dunn (New Zealand) and S. Gregory (United Kingdom)
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Beach litter survey, Signy Island, South Orkney Islands 1994/95
of the scientific research stations in the South Orkney Islands. For example, only six of the 208 items recovered ... ships or discarded gear from fishing vessels, rather than from either of the scientific research ...
Meeting Document : CCAMLR-XIV/BG/15 : Author(s): Delegation of the United Kingdom
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Notothenia (p.) gibberifrons Stock Status and TAC Estimation in the Area of Shag Rocks (Subarea 48.3)
Fisheries Research Institute data). To estimate terminal value of instantaneous fishing coefficient ... F regression on fishing effort and using average weighted F. Prior to the beginning of fishery N. guntheri ... estimates were obtained. Instantaneous natural mortality coefficient was M = 0.7 - 0.9 (Atlantic Fisheries ... on fishing effort and using average weighted F. Prior to the beginning of fishery N. guntheri abundance ...
Meeting Document : WG-FSA-88/33 : Author(s): R. Borodin and K. Shust (USSR)
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Assessment models for Patagonian toothfish in research block 5843a_1 of Division 58.4.3a, Elan Bank
comprised of two fisheries split by depths of 1 200 m as the model in WG-SAM-14/17. Number of longlines ... fixed; parameters of selectivity for legal fishery were estimated; uniform prior was used for initial ... , and 2) R.1 model including all tagging events (years 2005-2012). These models were comprised of two fisheries split ... of selectivity for legal fishery were estimated; uniform prior was used for initial biomass (B0) estimate ...
Meeting Document : WG-FSA-14/22 : Author(s): K. Taki (Japan)
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A critical re-examination of the evidence for a possible dependence of Weddell seals (Leptonychotes weddellii) on Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica
Abstract: There is presently debate over the degree to which the fishery for Antarctic toothfish ... possible impacts of toothfish removal by fisheries, is primarily hindered by (a) insufficient information ... There is presently debate over the degree to which the fishery for Antarctic toothfish ... seal populations on toothfish, and hence possible impacts of toothfish removal by fisheries ...
Meeting Document : WG-EMM-13/28 : Author(s): R. Eisert, M.H. Pinkerton (New Zealand), S.D. Newsome and O.T. Oftedal (USA)