Результаты поиска

1. Trends in mean lengths and selectivities for Dissostichus eleginoides taken by longliners in Subarea 48.3

   curves were estimated for each of the years 1997-2000. Notable differences were found amongst these, but ... there was a consistent tendency for fish over 90-100 cm to have a lower relative selectivity than ... found the same declines in mean lengths for the period 1997 – 1999 as previously noted by WG-FSA, but ... . Taking depth and area into account there is less of an apparent decline in mean length over the period ...

   Meeting Document : WG-FSA-01/48 : Автор(ы): G.P. Kirkwood and D.J. Agnew (United Kingdom)

2. Korean research plan for Dissostichus spp. in Subarea 48.5 in 2015/16

   area for two years. The Republic of Korea noted that the research activities in this region had ... no vessel previously fished. In this region, the severe ice condition existed for many years and no ... Abstract:  The Subarea 48.5 is a large area contained from 60°W to 20°W where has been closed to ... directed fishing for long time and is not even subdivided into any SSRUs. Republic of Korea noted that it ...

   Meeting Document : WG-SAM-15/08 : Автор(ы): Delegation of the Republic of Korea

3. CASAL model evaluation incorporating the calculation of harvest rate for D. eleginoides at Division 58.4.4b

   an exploration of the impact of Age Length Keys (ALK), CPUE standardization, and different scenarios ... catch at age data based on annual ALKs and data sources were weighted using an automatic procedure ... submitted by Japan and France (WG-SAM19/08), the CASAL models for Dissostichus eleginoides at Division ... -2019 suggestions (para 6.76 in the WG-SAM2019 report). A single-sex age structured CASAL model was ...

   Meeting Document : WG-FSA-2019/62 : Автор(ы): T. Okuda and F. Massiot-Granier

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

   Abstract:  This paper presents an updated assessment for the Patagonian toothfish (Dissostichus ... -2018, and auxiliary commercial composition data to aid with the estimation of year class strength and ... the end of 2019 and observations until the end of 2018. The updated assessment model is based on the ... accepted by WG-FSA-17 to be used for management advice, this assessment takes into account (1) update the ...

   Meeting Document : WG-FSA-2019/32 : Автор(ы): P. Ziegler

5. Revised selectivities for Dissostichus eleginoides taken by longliners in Subarea 48.3

   Abstract:  Kirkwood and Agnew (2001, paper WG-FSA-01/48) proposed an ad hoc method for estimating ... selectivities for the years 1995 – 2000 for input to the GYM assessment. In this paper, I propose a revised ... method for estimating the selectivities based on an assumption that the proportions of the total CPUE in ... an area for a particular length class that are taken in different depth zones are Beta-distributed ...

   Meeting Document : WG-FSA-02/64 : Автор(ы): G.P. Kirkwood (United Kingdom)

6. Stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1991/91 season, using virtual population analysis

   situation to assessments in 1989/90 with a decrease in overall biomass and recruitment over recent years ... Abstract:  An assessment of the Champsocephalus gunnari fishery in sub-area 48.3 using VPA from ... 48.3 for the 1991/91 season, using virtual population analysis Approval:  Approved ...

   Meeting Document : WG-FSA-91/15 : Автор(ы): G. Parkes (United Kingdom)

7. Report on attendance at the Sixth Meeting of the Committee for Environmental Protection Under the Madrid Protocol

   the Committee for Environmental Protection (CEP-VI) under the Madrid Protocol. The most important ... (with those organizations) to seek a common approach as to how special protection for species in the ... marine environment could be achieved and how proposals under the Protocol for designating Specially ... containing three options. ”Having regard to the provisions of Articles 4 and 5 of the Protocol, and Article 7 ...

   Meeting Document : CCAMLR-XXII/BG/11 : Автор(ы): Chair of the CCAMLR Scientific Committee

8. SEASONAL ESTIMATION OF ABUNDANCE BY BOOTSTRAPPING INEXACT RESEARCH DATA (SEABIRD): A METHOD FOR ASSESSING ABUNDANCE AND UNCERTAINTY FROM HISTORICAL COUNT DATA USING ADELIE PENGUINS AS A CASE STUDY

   Abstract:  In addition to a review of published studies on Adelie penguin abundance at breeding ... sites in Antarctica, Southwell (2004) proposed a general abundance estimator appropriate for a species ... bootstrap model, utilising as input data published counts of Adelie penguins and estimates of their ... the R language for statistical computing (R Development Core Team 2008). Software is reliant on data ...

   Meeting Document : WG-EMM-PSW-08/11 : Автор(ы): J.P. McKinlay and C.J. Southwell (Australia)

9. A method for estimating recruitment and mortality from time series of length-density data

   method for jointly estimating natural mortality and cohort strength at age 4 using a negative log ... years. A worked example is provided in an appendix. Author(s):  A. Constable and I. Ball (Australia ... Abstract:  Estimates of natural mortality are currently unavailable for Patagonian toothfish. Such ... estimates are needed for estimating recruitments and for use in assessing yield. This paper proposes a ...

   Meeting Document : WG-FSA-00/52 : Автор(ы): A. Constable and I. Ball (Australia)

10. Mackerel icefish Champsocephalus gunnari in the diet of upper trophic level predators at South Georgia: implications for fisheries management

    Abstract:  Mackerel Icefish Champsocephalus gunnari Lönnberg is an important component of the ... ecosystem at South Georgia where its diet is dominated by Antarctic Krill Euphausia superba, it is an ... important prey species for a number of upper trophic level predators, and is the target of commercial ... . gunnari population. C. gunnari occurred in 20 – 40 % of scats from Antarctic fur seals and comprised 48 ...

    Meeting Document : WG-FSA-03/74 : Автор(ы): K. Reid, S. Hill and T. Diniz (United Kingdom)

Страницы