Résultats de la recherche
-
Continuation in the 2014/15 season of the research plan initiated in 2012/13 for stocks of Dissostichus spp. in Divisions 58.4.1 and 58.4.2
Abstract: In the 2012/13 fishing season Spain began implementing a multi-annual Research Plan for ... Divisions 58.4.1 and 58.4.2 in order to estimate local biomass of Dissostichus spp. by means of two methods ... : depletion and tagging. This research will continue in the 2014/15 season if ice conditions allow for the ... (58.4.1H, G, D and C). Two research surveys have been already implemented in Division 58.4.1 and ...
Meeting Document : WG-SAM-14/09 : Auteur(s): Delegation of Spain
-
Alternative assessment methods for toothfish at South Georgia
Abstract: We examine two alternatives to the survey recruitment/GY method for estimating ... toothfish abundance. An age structured production model (ASPM) is constructed and tuned to the CPUE series ... CPUE that actually has been seen since 1996. Fitting the model to partial CPUE series, or assuming an ... usefulness of tagging data to estimate population size. We use two equations, the Jolly-Seber unbiased method ...
Meeting Document : WG-FSA-SAM-04/17 : Auteur(s): Kirkwood, G., Payne, A., Agnew, D.
-
Continuation in the 2015/16 season of the research plan initiated in 2012/13 for stocks of Dissostichus spp. in Divisions 58.4.1 and 58.4.2
Abstract: In the 2012/13 fishing season Spain began implementing a multi-annual Research Plan for ... Divisions 58.4.1 and 58.4.2 in order to estimate local biomass of Dissostichus spp. by means of two methods ... recovery, as well as, to progress research in these SSRUs (58.4.1H, G, D and C). Two research surveys have ... : Continuation in the 2015/16 season of the research plan initiated in 2012/13 for stocks of Dissostichus spp. in ...
Meeting Document : WG-SAM-15/02 : Auteur(s): Delegation of Spain
-
Improvements to the multiple-frequency method for in situ target strength measurements
transducer. Tolerances for matching target positions at two or more frequencies were determined to be ±0.5 m ... synchronized signals from two or more adjacent split-beam transducers of different frequencies which are not ... for in situ target strength measurements Approval: Approved ...
Meeting Document : WG-EMM-99/38 : Auteur(s): D.A. Demer (USA) and M.A. Soule (South Africa)
-
Acoustic data for the 1994 Krill Flux Workshop
a section given an oceanographic dataset of current direction and speed. The two programs produce ... Abstract: A methodology is described which when applied to data from an acoustic survey will ... yield mean krill density along an arbitrary section through the survey area, giving results compatible ... : Acoustic data for the 1994 Krill Flux Workshop Approval: Approved ...
Meeting Document : WS-Flux-94/04 : Auteur(s): Secretariat
-
Results of the tagging experiment for D. eleginoides in Subarea 48.4
Abstract: Two vessels, the Argos Helena (UK) and the San Aspiring (New Zealand), fished around ... 2005 to assess the toothfish population. We present an analysis of the catch and tagging data and a ... proposal for continuing research in this area in 2007. Author(s): A. Payne and D.J. Agnew (United Kingdom ... ) Title: Results of the tagging experiment for D. eleginoides in Subarea 48.4 Approval: Approved ...
Meeting Document : WG-FSA-06/56 : Auteur(s): A. Payne and D.J. Agnew (United Kingdom)
-
COMMITTEE FOR ENVIRONMENTAL PROTECTION: ANNUAL REPORT TO THE SCIENTIFIC COMMITTEE OF CCAMLR
Abstract: Co-operation between the Scientific Committee and the Committee for Environmental ... committees, and- Clarify the reporting requirements between the two committees. Author(s): CEP Observer ... Title: COMMITTEE FOR ENVIRONMENTAL PROTECTION: ANNUAL REPORT TO THE SCIENTIFIC COMMITTEE OF CCAMLR ... Protection has been steadily increasing over the last few years to the mutual benefit of both bodies. This ...
Meeting Document : SC-CAMLR-XXVIII/BG/16 : Auteur(s): CEP Observer
-
Estimation of the 2011 catch limit for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3 using a length-based population dynamics model
. Application of the harvest control rule ensuring 75% escapement after a two year projection period yielded a ... Abstract: A length based projection model is employed to estimate catch limits for the 2011/12 ... fishing season for Champsocephalus gunnari in CCAMLR sub area 48.3. The model is initialised using ... for cohort identification associated with the age based projection model used in previous assessments ...
Meeting Document : WG-FSA-10/37 : Auteur(s): C.T.T. Edwards, R.E. Mitchell, J. Pearce and D.J. Agnew (UK)
-
Extension of the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
Abstract: Three Operating Models (OMs) reflecting an “Optimistic”, “Intermediate” and a ... “Pessimistic” current status for the toothfish resource in the Prince Edward Islands region are developed which ... for trials of a candidate Management Procedure (MP) which could provide future TAC recommendations for ... this resource. The MP uses two data sources: the recent trend in longline CPUE and the mean length of ...
Meeting Document : WG-SAM-07/10 : Auteur(s): A. Brandão and D.S. Butterworth (South Africa)
-
Documentation for the CCAMLR survey database and length-density analysis
Abstract: Over the past two years, the CCAMLR Data Centre has undertaken a major overhaul of the ... research survey database and the routines used for length-density analyses. This overhaul was necessary ... develop. Author(s): Secretariat Title: Documentation for the CCAMLR survey database and length-density ... . While appropriate in earlier years, this procedure constricted the type of survey data that could be ...
Meeting Document : WG-FSA-00/11 : Auteur(s): Secretariat