Résultats de la recherche

1. Summary of a three year mark-recapture experiment to estimate population size of Antarctic toothfish (Dissostichus mawsoni) in Southern Area of Statistical Subarea 48.4

   Abstract:  A three-year tagging experiment was initiated by the UK in 2008/09 fishing season with ... the aims of providing the data required for assessments of the population structure, size, movement ... mawsoni) in South of Statistical Subarea 48.4. This paper presents the results for D. mawsoni. Fishing ... effort within the south of Subarea 48.4 was relatively evenly spread between each participating fishing ...

   Meeting Document : WG-FSA-11/31 Rev. 2 : Auteur(s): R.C. Wakeford, J. Roberts and R.E. Mitchell (United Kingdom)

2. An assessment of Chaenocephalus aceratus and Pseudochaenichthys georgianus in Subarea 48.3

   Subarea 48.3 since 1977 but have never been fully assessed by the Working Group on Fish Stock Assessment ... because of a lack of reliable biological and catch data. This paper attempts to reconstruct the fishery ... for these two species by assuming that 75% of the ‘unidentified fish’ caught by the Soviet Union in ... the years 1977 to 1988 consisted of catches of C. aceratus and P. georgianus. Biological, age-length ...

   Meeting Document : WG-FSA-90/06 : Auteur(s): D.J. Agnew (Secretariat) and K.-H. Kock (Germany)

3. Bayesian data-model synthesis for biological conservation and management in Antarctica

   Abstract:  This paper introduces a proposed data integration and assimilation tool to assist the ... and distribution. The engine of this decision-support tool is a physically-based algorithm for ... predictions from state-space models of population change. The DBN model synthesizes this data flow into policy ... ready metrics of Adélie penguin abundance at any user defined spatial or temporal scale. The results ...

   Meeting Document : WG-EMM-13/26 : Auteur(s): H.J. Lynch and M. Schwaller (USA)

4. Influence of data quality and quantity from a multiyear tagging program on an integrated fish stock assessment

   , fishing, and data collection, this study investigated how the bias and precision of biomass estimates from ... , particularly the effects of the size of tagged fish compared with the size of fish in the catch (tag size ... -overlap), numbers of tagged fish, duration of the tagging program, using catch-at-length or catch-at-age ... better-quality tagging data. The results showed that even when tag releases were distributed over a ...

   Meeting Document : WG-FSA-13/P03 : Auteur(s): P. Ziegler

5. Vast assembly of vocal marine mammals from diverse species on fish spawning ground

   . The system transmits broadband signals from 700- 1500 Hz and a towed array receives the returned ... echoes used in the assessment of prey abundance and distribution. Periodically, only the receiver array ... was operated to listen to whale vocalization. The vocalization identifies the animals and the long ... predators and prey. The Ocean Acoustic Waveguide Remote Sensing (OAWR) system is at present tailored to ...

   Meeting Document : WG-EMM-16/P01 : Auteur(s): D. Wang, H. Garcia, W. Huang, D.D. Tran, A.D. Jain, D.H. Yi, Z. Gong, J.M. Jech, O.R. Godø, N.C. Makris and P. Ratilal

6. Domain 1 Marine Protected Area Preliminary Proposal PART B: Conservation Objectives

   Abstract:  This document contributes to the planning process for the designation of a Domain 1 MPA ... summarizes the results and decisions taken in a series of international workshops specifically developed to ... assist in the Domain 1 MPA planning process, including the 2012- First International Workshop held in ... Valparaiso, Chile, (WG-EMM-12/69); the 2013 Binational Workshop (Chile-Argentina) held in La Serena, Chile ...

   Meeting Document : SC-CAMLR-XXXVI/BG/22 : Auteur(s): Delegations of Argentina and Chile

7. Characteristics of interannual variation in aggregation and diurnal vertical migration of Antarctic krill at South Georgia during winter

   Georgia during winter based on Japanese krill fishery data during the period 1990-2012. High density and ... predictable fishing grounds occurred in the restricted areas throughout the study period. Main results are as ... predator performance were poor in the previous summer. Krill recruitment index at South Georgia suggested ... the strong influence in recruitment from the Antarctic Peninsula in the 1990s, whereas the influence ...

   Meeting Document : WG-EMM-18/34 : Auteur(s): T. Ichii, Y. Mori, P.N. Trathan, K. Mahapatra, M. Okazaki, T. Hayashi and T. Okuda

8. Revised joint research proposal for Dissostichus spp. in Subarea 88.3 by Korea and New Zealand

   an additional 3 years covering the period 2018, 2019 and 2020. It was designed to build on Korea’s ... released on the slope, whilst also prospecting two of the northern seamount complexes and two boxes on the ... southern shelf, where little or no fishing has occurred. The main objective of the proposal is to determine ... the abundance of Antarctic toothfish in Subarea 88.3. Secondary objectives are to improve ...

   Meeting Document : WG-FSA-18/42 : Auteur(s): Delegations of the Republic of Korea and New Zealand

9. Possibility of predicting sea-ice concentration (SIC) in research block (RB) 48.6-5 (Southern part of Subarea 48.6) using sea surface temperature (SST) in RB 48.6-2 (Northern part of 48.6)

   Abstract:  It  was  reported  at  WG-SAM-2019  that  the  sea  ice  concentration  (SIC) of RB ... 48.6-5 corresponded well with the dynamics of monthly sea surface temperature  (SST)  anomaly  in  RB ...   48.6-5.   However,  in  the  prediction  of SIC  in  RB  48.6-5  using  the  monthly  SST  anomaly ... , consequently there is very little information on the SIC during this period. However, the SST of RB 48.6-2 can ...

   Meeting Document : WG-FSA-2019/49 : Auteur(s): T. Namba, R. Sarralde, S. Somhlaba and J. Pompert

10. A comparison of model predictions from KPFM1 and KPFM2

    Abstract:  We compare two versions of the krill-predator-fishery model to demonstrate the extent ... to which the predictions of KPFM1 can be reproduced with KPFM2. We also discuss the incorporation of ... seasonality into parameter estimates and a necessary change in the predator recruitment function of KPFM2 ... . These comparisons provide a preliminary indication that the substantial changes in the structure and ...

    Meeting Document : WG-EMM-06/20 : Auteur(s): J. Hinke, G. Watters (USA), S. Hill and K. Reid (United Kingdom)

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