Résultats de la recherche
-
Variation in reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implications for southern ocean monitoring studies
Georgia over the last decade (and similar data for Adelie and Chinstrap Penguins at Signy Island, South ... significantly. The other species at South Georgia, which breed in summer and for which krill forms a significant ... Island are not synchronised with those at South Georgia. They correlate best (and especially for ... , penguin and fur seal biology. The results are reviewed in terms of their suitability for detecting changes ...
Meeting Document : SC-CAMLR-VI/BG/15 : Auteur(s): J.P. Croxall, T.S. McCann, P.A. Prince and P. Rothery (United Kingdom)
-
Variation or reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implication for Southern Ocean monitoring studies
Georgia over the last decade (and similar data for Adelie and Chinstrap Penguins at Signy Island, South ... / significantly. The other species at South Georgia, which breed in summer and for which krill forms a significant ... Island are not synchronised with those at South Georgia. They correlate best (and especially for ... , penguin and fur seal biology. The results are reviewed in terms of their suitability for detecting changes ...
Meeting Document : WG-CEMP-87/13 : Auteur(s): J.P. Croxall, T.S. McCann, P.A. Prince and P. Rothery (United Kingdom)
-
Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... . The stock sizes for a research block (58.4.2_1) were estimated by the Petersen estimator and the CPUE ... juvenile fish for each ice shelf block suggests that the recruitment occurs along the ice-shelf zones of ... . To this end, we propose to follow the current research style in the current research blocks for the ...
Meeting Document : WG-SAM-15/04 : Auteur(s): Delegation of Japan
-
OPTIONS FOR USING UNREPLICATED ECOSYSTEM MONITORING DATA TO DETECT IMPACTS
an important challenge. Potential strategies are likely to consist of a method for inferring impacts ... control sites. Identifying how these data could be used in an ecosystem management strategy is therefore ... either assess the expected probability of an observed value in an unimpacted system, or they assess the ... changes in this frequency rather than by reference to a critical probability. For example, this approach ...
Meeting Document : WG-EMM-09/26 : Auteur(s): S. Hill, J. Forcada, P. Trathan and C. Waluda (United Kingdom)
-
Revised research plan for the 2016/17 toothfish fishery in Division 58.4.4b by Japan and France
three years as effective for the calculation following the recommendation in the last WG-SAM meeting ... August for the current analysis, but not used the cleaning data provided by them in this early September ... due to tight schedule for the submission. The estimated median stock size in block 58.4.4b_1 and ... important resources for whole SSRUs, although no migration has been observed between SSRUs to date ...
Meeting Document : WG-FSA-16/33 Rev. 1 : Auteur(s): Delegations of Japan and France
-
Using digital video monitoring systems in fisheries: applications for monitoring compliance of seabird avoidance devices and seabird mortality in Pacific halibut longline fisheries
allow an analyst to monitor seabird avoidance devices for regulatory compliance; 2) determine the ... accurate data and enable compliance evaluations for seabird avoidance devices. In addition, an EMS program ... Halibut Commission (IPHC) for a project examining the feasibility of electronic monitoring systems (EMS ... project were to: 1) examine the ability of an electronic monitoring system to provide images that would ...
Meeting Document : WG-FSA-04/24 : Auteur(s): R.T. Ames, G.H. Williams and S.M. Fitzgerald (USA)
-
Research plan for toothfish in Division 58.4.4a & b by Shinsei Maru No. 3 in 2013/14
zero to all observed IUU fishing, and using constant YCS (year class strength) in SSRU C. The ... CASAL_base model includes estimated variability of YCS for the period from 1989 to 2005, and assumed that a ... been able to determine catch limit yet, we would like to conduct research repeated for at least 3-4 ... total of 50 tonnes in SSRUs C and D for the 2013/14 as in the 2012/13, in order to promote successful ...
Meeting Document : WG-SAM-13/21 : Auteur(s): Delegation of Japan
-
USING ECOSYSTEM STRUCTURE TO IDENTIFY FINER-SCALE SSMUS FOR OCEANIC AREAS IN SUBAREAS 48.1 TO 48.3
subdivision of catches that allows CCAMLR to achieve its objectives for both the fishery and the ecosystem ... . This requires a framework of spatial areas over which catches can be subdivided. WG-EMM has devised an ... (shelf and shelf-break) areas and oceanic areas. WG-EMM devised thirteen coastal SSMUs with an average ... devised just four SSMUs, with an average area of 758,809 km2, to cover the remaining 87% of the four ...
Meeting Document : WG-EMM-11/18 : Auteur(s): S.L. Hill and J. Silk (UK)
-
Updating the Antarctic krill biomass estimates for CCAMLR Subareas 48.1 to 48.4 using available data
yield estimate for the krill fishery (which is 9.3%). Biomass indices from local scale acoustic surveys ... catch limit which is currently appropriate for achieving the conservation criteria for the krill stock ... prerequisite for such advances. The most effective means to achieve this is likely to be through increased use ... . Watkins (United Kingdom) Title: Updating the Antarctic krill biomass estimates for CCAMLR Subareas 48.1 ...
Meeting Document : WG-EMM-15/28 : Auteur(s): S. Hill, A. Atkinson, C. Darby, S. Fielding (United Kingsom), B. Krafft, O.R. Godø, G. Skaret (Norway), P. Trathan, J. Watkins (United Kingdom)
-
THE SELECTION OF TRIPS BASED ON DATA METRICS FOR THE ASSESSMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
tagging data quality for use in an assessment. Author(s): D.A.J. Middleton (New Zealand) Title: THE ... Abstract: A dataset for the 2009 assessment of Antarctic toothfish (Dissostichus mawsoni) in the ... Ross Sea Region was selected on the basis of data quality metrics for individual trips. Initial ... trips were used to define a range for various data quality metrics considered to be informative with ...
Meeting Document : WG-FSA-09/35 : Auteur(s): D.A.J. Middleton (New Zealand)