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1. Beached birds: a guide used by north pacific groundfish observers to identify seabirds incidentally caught in fisheries

   Abstract:  In the fall of 2002, the U.S. National Marine Fisheries Service (NMFS) purchased 300 ... copies of Beached Birds for use by North Pacific Groundfish Observers deployed on commercial fishing ... vessels in the Bering Sea and Gulf of Alaska. This new guide replaces a dichotomous key on looseleaf paper ... with black and white drawings. The purpose of using this new educational tool is to enhance the ability ...

   Meeting Document : WG-FSA-03/24 : Автор(ы): T. Hass and S. Davis (USA)

2. Determining toothfish otolith structure using oxytetracycline at South Georgia – a preliminary report

   at South Georgia and Shag Rocks early in 2000. A total of 2486 have been tagged and released during ... trawl surveys, experimental pot fishing and longline fishing. Some of the fish tagged on longliners in ... otoliths of some of these chemically marked recaptures of the 2003 season were examined and the preliminary ... were also recaptured. From recaptures of chemically marked fish our study seems to indicate that the ...

   Meeting Document : WG-FSA-03/80 : Автор(ы): M.G. Purves, M. Belchier, D.J. Agnew, G. Moreno and T.R. Marlow (United Kingdom)

3. CONVERSION FACTORS AND GREEN WEIGHT CALCULATION IN THE ANTARCTIC KRILL FISHERY

   number of reasons:.; o Differences in the method of processing the same products o Seasonal variation o ... Spatial variation o Krill water content o Reporting errors (recording percentage recovered instead of ... total catch estimates as the majority of vessels interviewed made direct estimates of green weight ... catches; and, A need for closer monitoring of processing methods, calculation of green weight catches, and ...

   Meeting Document : TASO-09/06 : Автор(ы): Moir Clark, J., Peatman, T.

4. Further krill-predator model calculations

   Antarctic fur seal dataset. These calculations are extended here. The level of krill fishing intensity ... estimated previously. Tests of the estimation procedure indicate that γhalf estimates are likely to be ... biased upwards. The estimator is not robust to incorrect specification of the form of the functional ... relationship assumed between krill availability and survival rates, and especially not to the assumption of the ...

   Meeting Document : WG-EMM-97/70 : Автор(ы): Thomson, R.B., Butterworth, D.S.

5. Krill catch distribution in relation to predator colonies, 1987-1991

   Abstract:  The distribution of krill catches in relation to predator colonies in Subareas 48.1 and ... 48.2 is shown. 74-90% of catches in Subarea 48.1 are taken within 100 km of predator colonies between ... December and March, and these are between 10 and 18% of the estimated total penguin consumption in this ... period. The pattern of fishing is very consistent in all years 1988-1991 in Subarea 48.1, but is more ...

   Meeting Document : WG-KRILL-92/18 : Автор(ы): Secretariat

6. Australian research on Antarctic bird and seal diets

   Abstract:  Many data on the diets of important vertebrate predator species in Prydz Bay and around ... , Euphausia superba forms a rather low proportion of the diet of most vertebrate predators. Euphausia ... between prey species. The use of these predators to monitor the state of prey populations is thus very ... limited, although continuing studies will be useful to assess the natural varibility of the system. Around ...

   Meeting Document : SC-CAMLR-VII/BG/32 : Автор(ы): Delegation of Australia

7. Estimating toothfish biomass in Subarea 48.3 using local depletions

   Abstract:  We investigated local depletions of toothfish under concentrated fishing effort as a ... means of estimating toothfish density at South Georgia. Over the four years 2000-2003, we found 25 areas ... of 12’ by 12’ where there had been forty or more hauls in any particular year. There were 62 ... individual vessel fishing events in these areas over this period, 40 of which appeared to be depletions ...

   Meeting Document : WG-FSA-SAM-04/18 : Автор(ы): Pearce, J., Agnew, D.

8. CEMP data inventory and summary analysis

   krill-based ecosystems to provide a basis for regulating harvesting of Antarctic living marine resources ... process and methods used to provide data extracts for analyses by Members as part of the development of ... approaches to feedback management. This report also includes a number of issues for consideration in relation ... to the clarification of the format for submitting data on penguin breeding population size and ...

   Meeting Document : WG-EMM-16/08 : Автор(ы): CCAMLR Secretariat

9. Krill consumption by Adélie penguins in CCAMLR Divisions 58.4.1 and 58.4.2

   Abstract:  We estimate the total abundance of Adélie penguins foraging in Divisions 58.4.1 and ... 58.4.2 and provide preliminary estimates of krill consumed by breeding Adélie penguins in these Divisions ... using a newly developed bio-energetics model.  Our estimate of ~6 million Adélie penguins substantially ... breeding population than was evident from previous work. The population of breeding Adélie penguins was ...

   Meeting Document : WG-EMM-16/65 : Автор(ы): C. Southwell and L. Emmerson

10. Research concept on catchability to study toothfish abundance/stocks in the Antarctic marine areas

    Abstract:  Main two methods, which are used for the estimation of abundance/stocks of toothfish in ... CPUE data. But calculation of toothfish abundance with using these methods demands a number of ... assumptions, which sometimes broaden too much the possible values of the calculated parameters. The authors ... present a method approach concerning possible use of a bottom trawl survey to estimate a minimum ...

    Meeting Document : WG-SAM-18/19 : Автор(ы): K. Demianenko, L. Pshenichnov, O. Diripasko and V. Gurianov

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