Resultados de la búsqueda

1. Some comments on the procedure for testing estimators of krill abundance which utilise survey data

   Paper Title:  Some comments on the procedure for testing estimators of krill abundance which ... indeed likely to provide improved performance in practice. Such studies require a simple method for ... provide an encouraging improvement in fits to the distribution of inter-swarm distances observed on the ... is needed before such models can be used as the basis for the simulation studies required- some ... procedure in most circumstances. An objection that has been raised to this approach is that it is ... ; further, an underlying density trend could be argued from inspection of this plot. However, for the ... and Figure 2. This table also includes the fit for an assumed random distribution, i.e. the negative ... The ability of the two-level models considered to mimic an observed spatial distribution pattern for ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 191–205 : Autor(es): Butterworth, D.S., D.L. Borchers and D.G.M. Miller

2. Revised proposal for a CCAMLR sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea

   and requested members develop a pre-recruit survey design. A preliminary proposal for a pre-recruit ... survey was presented to the 2011 meeting of WG-SAM. In this paper we provide an update of the preliminary ... for the research proposal for a longline survey of pre-recruit toothfish in the southern Ross Sea ... survey, the target fish age and length classes to be monitored, appropriate survey strata size and ...

   Meeting Document : WG-FSA-11/47 : Autor(es): S.M. Hanchet, S. Mormede, S.J. Parker and A. Dunn (New Zealand)

3. Principles for evaluating data collection plans in data-poor exploratory fisheries

   Commissions’ goals for new, exploratory and closed fisheries as well as satisfying the objectives in Article ... in accordance with the principles set forth in Article II of the Convention. However, several times ... over the last five years the Scientific Committee has noted with concern the lack of progress in ... of principles to assist the Scientific Committee with developing a framework for research in data ...

   Meeting Document : WG-SAM-11/08 : Autor(es): P.E. Ziegler, D.C. Welsford and A.J. Constable (Australia)

4. Use of the Leslie stock depletion model for the assessment of local abundance of Patagonian toothfish (Dissostichus eleginoides)

   Paper Title:  Use of the Leslie stock depletion model for the assessment of local abundance of ... used to examine local patterns in catch per unit effort (CPUE) in the longline fisheries for Patagonian ... in localised areas for periods of at least three days. The results suggest that there is greater ... potential for application of the model in some areas than in others, but in general there is no sufficiently ... ) since 1989. Vessels from the former Soviet Union dominated the fishery for the first three years ... to fisheries for D. eleginoides off the Pacific coast of Chile. An experimental approach similar to ... the 1993/94 season. This was an attempt to provide suitable data for a series of local estimates of ... for them to be modelled using the linear regression. An alternative explanation which should be ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 55–77 : Autor(es): Parkes, G., C.A. Moreno, G. Pilling and Z. Young

5. Selecting sampling frequency for measuring diving behaviour

   seals: an increase in interval from 5s to 15s resulted in 20% of dives being unrecognised, a 38 ... between individuals, seasons and years are possible. The degree to which the sampling interval selected ... fur seals and southern elephant seals representative of the extremes of diving in pinnipeds. For both ... concatenated) increased monotonically as sampling interval increased. Effects were especially marked for fur ...

   Meeting Document : WG-CEMP-93/14 : Autor(es): I.L. Boyd (United Kingdom)

6. Reassessment of important population parameters for Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on time series of surveys and fishery data

   . An approach is proposed to estimate age selectivity to the trawl fishery in the region. In conclusion ... Abstract:  A large body of data and techniques are available for re-assessing the biological ... over 11 years on this stock with other surveys including part of this stock. This paper describes the ... -estimated in the past. An estimate of natural mortality indicates that mortality of young fish, ages 3-8 ...

   Meeting Document : WG-FSA-01/73 : Autor(es): A.J. Constable, R. Williams, T. Lamb, I.R. Ball and E. van Wijk (Australia)

7. Updates to Fishery Reports – A prototype based on the ‘Exploratory fishery for Dissostichus mawsoni in Subarea 48.6’ Fishery Report

   SAM meeting server). The 2018 Working Group on Fish Stock Assessment welcomed the Secretariat’s intent ... to transform the way Fishery Reports will be published, into standardised and automated webpages (WG ... prototype based on the ‘Exploratory fishery for Dissostichus mawsoni in Subarea 48.6’ Fishery Report ... responsibility for releasing documents:  CCAMLR Secretariat ...

   Meeting Document : WG-SAM-2019/35 : Autor(es): CCAMLR Secretariat

8. Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.3a

   applies to this fishery and in recent years has been linked to an exemption for night setting in CM 24-02 ... –80 and 90–130 cm. In 2007/08, a single mode was observed, at approximately 50–80 cm. In 2008/09 ... reported in WG-FSA-10/25 for data in Subareas 88.1 and 88.2 and review of data across all exploratory ... exploratory in 2000. That year, the Commission agreed on four exploratory fisheries for Dissostichus spp. in ...

   Document : Site Section: Publications

9. Report on fishing effort and seabird interactions during the season extension trials in the longline fishery for Patagonian toothfish (Dissostichus eleginoides) in Statistical Division 58.5.2

   fishery for Patagonian toothfish (Dissostichus eleginoides) in Statistical Division 58.5.2 started as a ... seabird mitigation measures since the initial fishing season in 2003. Over the years, CCAMLR has agreed to ... add season extensions from 15-30 April and 15 September- 31 October to the core season. In 2015 ... , CCAMLR XXXIV (para. 5.68) endorsed new pre-season (1-14 April) and post-season (15-30 November) season ...

   Meeting Document : WG-FSA-2019/31 : Autor(es): P. Ziegler, T. Lamb, S. Wotherspoon and J. Dell

10. Considerations for research plan design and implementation in data-poor fisheries

    implementation issues raised during research plan design and evaluations. Our aim is to streamline the review ... . Sharp, A. Dunn (New Zealand) and K. Taki (Japan) Title:  Considerations for research plan design and ...

    Meeting Document : WG-SAM-13/37 : Autor(es): S.J. Parker, B. Sharp, A. Dunn (New Zealand) and K. Taki (Japan)

Páginas