Результаты поиска

1. A simulation study of krill fishing by an individual Japanese trawler (SC-CAMLR-VI/BG/37)

   Abstract:  A model is set up for the operation (which includes both searching and fishing) of a ... Japanese krill trawler over a half-month period. It is based on an underlying krill distribution model ... the operation is compared with (and partially tuned to) statistics for a sample of data from the ... commercial fishery. A major inconsistency is found: haul times are a factor of 4-5 times greater in reality ...

   Meeting Document : WS-KCPUE-89/04 : Автор(ы): D.S. Butterworth (South Africa)

2. A simulation study of krill fishing by an individual JAPANESE trawler

   Abstract:  A model is set up for the operation (which includes both searching and fishing) of a ... Japanese krill trawler over a half-month period. It is based on an underlying krill distribution model ... the operation is compared with (and partially tuned to) statistics for a sample of data from the ... commercial fishery. A major inconsistency is found: haul times are a factor of 4-5 times greater in reality ...

   Meeting Document : SC-CAMLR-VII/BG/37 : Автор(ы): D.S. Butterworth (Invited Expert)

3. A simulation study of krill fishing by an individual Japanese trawler

   Paper Title:  A simulation study of krill fishing by an individual Japanese trawler Abstract ... / Description:  A model is set up for the operation (which includes both searching and fishing) of a Japanese ... krill trawler over a half-month period. It is based on an underlying krill distribution model whose ... is compared with (and partially tuned to) statistics for a sample of data from the commercial fishery ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 1–108 : Автор(ы): Butterworth, D.S.

4. Influence of the quality and quantity of data from a multi-year tagging program on bias and precision of biomass estimates from an integrated stock assessment – update

   estimates from an integrated tag-based assessment are influenced by various aspects of a multi-year tagging ... emerged within this overall trend. The results show that in the early stages of the tagging program, a ... high tag size-overlap is imperative to maximise the likelihood of a robust assessment. Tagging fish ... with a low tag size-overlap, even with large numbers, is likely to result in overestimates of biomass ...

   Meeting Document : WG-FSA-12/18 : Автор(ы): P.E. Ziegler (Australia)

5. The krill maturity cycle: a conceptual description of the seasonal cycle in Antarctic krill

   Abstract:  A long term study on the maturity cycle of Antarctic krill was conducted in a research ... aquarium. Antarctic krill were either kept individually or in a batch for 8 months under different ... . Based on these results, and information available from previous studies, we suggest a conceptual model ... describing seasonal cycle of krill physiology which provides a framework for future studies and highlight the ...

   Meeting Document : WG-EMM-06/23 : Автор(ы): S. Kawaguchi, T. Yoshida, L. Finley, P. Cramp and S. Nicol (Australia)

6. The case for a Ross Sea marine reserve

   Abstract:  The Ross Sea continental shelf and slope have a number of characteristics that make it ... an ideal candidate for a marine reserve, as evidenced by its inclusion in the list of 11 priority ... .¹ With exceptional biodiversity and evolutionary significance, as well as its potential as a climate ... a no-take MPA encompassing the shelf and slope. Scientific information presented to CCAMLR and the ...

   Meeting Document : CCAMLR-XXX/BG/23 : Автор(ы): Submitted by ASOC

7. Use of a population model to assess the impact of longline fishing on wandering albatross populations

   Abstract:  An age-structured model of a wandering albatross Diomedea exulans population is ... Possession Island Crozets, during 1968 to 1986. The simulation results portray a population decreasing at a ... albatross mortality is presumed to have increased as a result of deaths caused by longline fishing vessels ... eleginoides in Antarctica. Assuming longline fishing operations affect juveniles more than adults, there is a ...

   Meeting Document : WG-IMALF-94/08 : Автор(ы): Coleen L. Moloney, John Cooper, Peter G. Ryan and W. Roy Siegfried (South Africa)

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

   Abstract:  Using a modeling framework for toothfish (Dissostichus spp.) population dynamics ... an integrated tag-based assessment are influenced by various aspects of a multiyear tagging program ... better-quality tagging data. The results showed that even when tag releases were distributed over a ... relatively large number of size classes, low recapture numbers collected in short tagging programs with a 100 ...

   Meeting Document : WG-FSA-13/P03 : Автор(ы): P. Ziegler

9. Using spatial population models to investigate the effects of a proposed Marine Protected Area on Antarctic toothfish in the Ross Sea region

   Abstract:  One aim of Marine Protected Areas (MPAs) is to protect a representative portion of ... of that fishery’s displacement on the target fish population. We used a spatially explicit population ... model of Antarctic toothfish in the Ross Sea region to investigate the effects of a proposed MPA on the ... to result in a small increase in the catch limit under existing harvest management rules, as well as ...

   Meeting Document : WG-FSA-15/42 : Автор(ы): S. Mormede, A. Dunn, S.J. Parker and S.M. Hanchet (New Zealand)

10. A GIS tool to assist in the planning and design of sample surveys of the abundance of colonial breeding species

    Abstract:  A GIS tool to assist in the planning and designing of surveys of colonial breeding ... the example the tool is used to sample a population of Adelie penguins in the Holme Bay region of East ... Antarctica as might occur in a real a pilot survey, and the resulting sample densities used to predict the ... number of sampling units required to estimate abundance for the entire region with a pre-determined ...

    Meeting Document : WG-EMM-05/25 : Автор(ы): C. Southwell, R. Dreissen, S. Candy, G. McPherson and J. Clarke (Australia)

Страницы