Résultats de la recherche

1. Revised input parameters and implications for the Antarctic toothfish (Dissostichus mawsoni) stock assessment in Subareas 88.1 and 88.2

   assessment model results. Dunn et al. (2007) noted that the locations of the 2007 recaptures were highly ... Abstract:  In this paper, we address a number of aspects of the model inputs and parameters of the ... of Antarctic toothfish. While tree-regressions suggested strong evidence of a high degree of small ... -scale areal complexity, we were unable to provide a stratification that resulted in improved or ...

   Meeting Document : WG-SAM-07/6 : Auteur(s): A. Dunn and S.M. Hanchet (New Zealand)

2. Report on exploratory fishing by Australia in Division 58.4.1 during the 2015/16 fishing season

   companion paper to Maschette et al. (2016) which reports on the collection of environmental data under ... as set out in Conservation Measures 41-11 and 41-05. A research plan (WG-FSA-15/47 Rev. 1) was ... composition, tagging and biological sampling undertaken by Australia in SSRUs 58.4.1E and 58.4.1G. A total of ... logbooks recorded a total of 51980.9 kg of Antarctic toothfish (Dissostichus mawsoni) and 581.6 kg of ...

   Meeting Document : WG-SAM-16/35 : Auteur(s): P. Yates, D. Welsford, P. Ziegler, D. Maschette and T. Lamb

3. SC-CAMLR-XXX

   intention to conduct exploratory longline fisheries for Dissostichus spp. in 2011/12 Delegación de España ... United Kingdom CCAMLR-XXX/30 Proposal for a general conservation measure to implement Marine Protected ... establishment of a CEMP Fund for increased ecosystem monitoring under conditions of uncertainty Delegations of ... Protected Areas (Brest, France, 29 August to 2 September 2011) SC-CAMLR-XXX/07 Proposal for a CCAMLR ...

   Meeting

4. An investigation of integrated stock assessment methods for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL

   al. (2006), but with a recognition that some age classes are only partially selected in these surveys ... Patagonian toothfish in Division 58.5.2. It focuses on developing a “base-case” assessment, which is ... the abundances of juvenile fish but adding fishery catch-at-length data, including a standardised ... well as uncertainties in the spatial dynamics of the stock and the fisheries. Author(s):  A. Constable ...

   Meeting Document : WG-FSA-SAM-06/14 : Auteur(s): A. Constable, S. Candy and I. Ball (Australia)

5. Uncertainty in echosounder calibrations

   standard sphere method (Johannesson and Mitson, 1983; Simmonds et al., 1984). To determine the accuracy of ... deviations of 0.1, 0.3, and 0.2 dB, respectively. To characterize the precision of the method for a fixed ... pulse length (0.3 ms) and water temperature (18.9°C), a Simrad EK500 echosounder was used to measure ... sphere TS versus time. Over two 15 hour periods, the measured TS ranged 1.2 dB for a 23.0 mm Cu sphere ...

   Meeting Document : WG-EMM-96/40 : Auteur(s): Soule, M.A., Demer, D.A.

6. Uncertainty in acoustic surveys of Antarctic krill

   remote species identification (Demer et al., submitted). The technique was used to apportion the ... acoustic surveys. The variance in system calibration with a standard sphere was evaluated in relation to ... different standard spheres with the results of a calibration by self-reciprocity (Demer and Hewitt ... , submitted). Combining the results of these experiments, the accuracy and precision of a system calibration ...

   Meeting Document : WG-EMM-95/72 : Auteur(s): Demer, D.A.

7. Genetic structuring of Patagonian toothfish populations in the southwest Atlantic Ocean: the effect of the Antarctic Polar Front and deep-water troughs as barriers to genetic exchange

   effects or (putative) male-biased dispersal. Author(s):  P.W. Shaw, A.I. Arkhipkin and H. Al-Khairulla ... sites. Mitochondrial DNA (mtDNA) data indicated a sharp genetic division between the Patagonian Shelf ... these data indicate that the APF, as a barrier to larval dispersal, is the major inhibitor of genetic ...

   Meeting Document : WG-FSA-04/21 : Auteur(s): P.W. Shaw, A.I. Arkhipkin and H. Al-Khairulla (United Kingdom)

8. Penguins, fur seals, and fishing: prey requirements and potential competition in the South Shetland Islands, Antarctica

   et al. who asserted that the potential for competition between South Shetland predators and the ... their foraging efforts on a single species, Antarctic krill (Euphausia superba). Because these predators ... may have a significant effect on krill abundance, we estimated the energy and prey requirements of ...

   Meeting Document : WG-EMM-99/57 : Auteur(s): D.A. Croll and B.R. Tershy (USA)

9. Proposed initiative to contribute to Ross Sea region MPA research and monitoring activities using pop-up satellite tags and otolith chemistry on Dissostichus mawsoni

   survey to monitor abundance of Antarctic toothfish in the southern Ross Sea in 2018/19 (Stevens et al ... is to deploy a total 20 pop-off satellite tags (PSAT) on juvenile toothfish within the General ... ., 2018), and a winter longline survey of Antarctic toothfish in the northern region of Subareas 88.1 and ...

   Meeting Document : WS-SM-18/16 : Auteur(s): C.D. Jones

10. An integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2

    parameters, the use of abundance estimates from a random stratified trawl survey (RSTS), longline tag-release ... -SAM-2015, and incorporates (a) new fishery observations up to 2015 including new ageing data from the ... catchability q, unfished spawning biomass B 0 and year class strength, and (e) a split of the trawl sub-fishery ... into two periods. All model runs were conducted with the CASAL version 2.30-2012-03-21 that was agreed ...

    Meeting Document : WG-FSA-15/52 : Auteur(s): P. Ziegler and D. Welsford (Australia)

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