Résultats de la recherche

1. Fishing patterns of Japanese krill trawlers

   , 30nm, and 60nm). Distribution of the operation units showed considerable variation in space and time ... expressing the status of krill in the fishing ground. Catch per fishing days maybe the reasonable index for ... expressing the status of krill in the fishing ground. Author(s):  S. Kawaguchi, T. Kameda and Y. Takeuchi ... strategies, especially focusing on their movement in time and space. The operations were grouped into ...

   Meeting Document : WG-EMM-02/28 Rev. 1 : Auteur(s): S. Kawaguchi, T. Kameda and Y. Takeuchi (Japan)

2. Standardisation of commercial CPUE

   Abstract:  This paper reports analysis of CPUE data on cod in the Barents Sea.  The potential of ... vessel trawling operations take place at acceptable proximity in time and space. The methodological ... approach might be of interest for the longline fishery for tothfish as well as for the trawl fishery on ... krill. A model for standardisation of fishing power for individual vessels in a commercial fishing fleet ...

   Meeting Document : WG-SAM-15/P01 : Auteur(s): A. Salthaug and O.R. Godø

3. Estimating penguin populations using image analysis of colour aerial photography

   Abstract:  Penguin populations are potentially sensitive indicators of change in the Antarctic and ... sub-Antarctic and are used extensively to monitor changes in the marine ecosystem. Aerial photographic ... colonies, for colonies in areas of complex terrain, or for colonies where ground access is difficult ... study colonies, highlighting various assumptions that contribute to differences in the population ...

   Meeting Document : WG-EMM-02/34 Text : Auteur(s): P.N. Trathan (United Kingdom)

4. On commercial significance of krill aggregations

   of acoustic investigation obtained in the Soviet trawler operation areas in Subareas 48.1-48.4 were ... and 2002 (2380 hauls). In the course of the recent twenty years, krill has been fished in the areas ... numbering 22000 hauls for the period of 1986-1990 and those from Ukrainian trawlers for the period of 2001 ... estimated at 24 g/m2 (Boyd, 2001). As is evident from comparison of above density values, the fleet and ...

   Meeting Document : WG-EMM-03/31 : Auteur(s): S.M. Kasatkina (Russia)

5. UPDATE ON ITEMS OF INTEREST TO WG-IMAF

   potential for use in the CCAMLR context. Author(s):  N. Walker (New Zealand) Title:  UPDATE ON ITEMS OF ... Economic Zone that are relevant to the work of WG-IMAF. These developments include refinement of the ... requirement of fishing practices to reduce seabird bycatch by surface longline vessels and the introduction of ... regulations to reduce seabird bycatch by bottom longline vessels. The bycatch of seabirds by fisheries within ...

   Meeting Document : WG-FSA-08/47 : Auteur(s): N. Walker (New Zealand)

6. Distributions and predator-prey interactions of macaroni penguins, Antarctic fur seals, and Antarctic krill near Bird Island, South Georgia

   between the distributions of predators and their prey with respect to the abundance of krill in the water ... macaroni penguins were concentrating their foraging for krill in the vicinity of the shelf-break. Author(s ... Abstract:  We studied the distributions, abundances and interactions of macaroni penguins Eudyptes ... transects radiating from the breeding colonies of the vertebrate predators. We examined the relationships ...

   Meeting Document : WG-CEMP-93/12 : Auteur(s): G.L. Hunt, Jr (USA), D. Heinemann (USA) and I. Everson (United Kingdom)

7. A method for inferring movement rates of fish from mark–recapture data

   release and the recapture. In addition, the intensity of fishing effort (i.e. sampling) by location and ... required for the probability of recapture in a location to match the relative probability of catching an ... Abstract:  This paper presents methods to infer the rate of movement of fish that are marked ... , released, and subsequently captured. The information that is available is the location and date of the ...

   Meeting Document : WG-FSA-05/66 : Auteur(s): C. Wilcox (Australia)

8. Molecular analysis of stomach contents from Antarctic toothfish (Dissostichus mawsoni) collected from Area 58 and 88 from 2016 to 2018

   between two species appear to be related to the size of D. mawsoni. Many of fish taxa in the stomach of D ... (~600 bp) in this study may not have enough size for the clear analysis of haplotypes. Further study ... , which is native to the Southern Ocean. Although it plays an important role in the Antarctic ecosystem ... , the ecology of D. mawsoni is still fragmental mainly due to the limited accessibility for the sample ...

   Meeting Document : WG-FSA-2019/37 : Auteur(s): S.R. Lee, S.-G. Choi, S. Chung, D.H. An and H.-W. Kim

9. AMLR Hydroacoustic Survey System Description of Methods, A Case Study

   Abstract:  The AMLR hydroacoustic system used for surveys in the vicinity of Elephant Island and ... ensures data integrity and repeatability of analytic results. The variability inherent in the distribution ... King George Island during 1987-1989 has hardware and software components. The method of analysis ... proceeds from the basic integration data (lm bins by 1min outputs) to the stratification of these data into ...

   Meeting Document : WG-KRILL-89/10 : Auteur(s): M.C. Macaulay (USA)

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

    , particularly the effects of the size of tagged fish compared with the size of fish in the catch (tag size ... , fishing, and data collection, this study investigated how the bias and precision of biomass estimates from ... -overlap), numbers of tagged fish, duration of the tagging program, using catch-at-length or catch-at-age ... relatively large number of size classes, low recapture numbers collected in short tagging programs with a 100 ...

    Meeting Document : WG-FSA-13/P03 : Auteur(s): P. Ziegler

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