Résultats de la recherche

1. Size and density of krill layers fished by a Japanese trawler in the waters north of Livingston Island in January 1988

   was estimated from the catch, mouth area of the net (560 m2) and towing time. The towing time in this ... not fish the deeper parts of the layers in at least 16 out of 34 hauls. Catch per tow ranged from ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 339–345 : Auteur(s): Endo, Y. and Y. Shimadzu

2. Selectivity of commercial and research trawls in relation to krill

   the same scientific observer and all samples were sorted by 2 mm length classes. Catch (tonnes ... ) 7.0 7.0 5.0 Time 15:4O - 16:lO 20:3O - 21:OO 00:53 - 01:23 RESULTS Catch (kg) 22.0 ... CV( E ) = 5.7%. Histograms of krill length distribution in each catch and summary length data are ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 161–169 : Auteur(s): Kasatkina, S.M

3. Distribution and size–age composition of Antarctic krill (Euphausia superba) in the South Orkney Islands region (CCAMLR Subarea 48.2).

   deck), pumping the catch out of the codend with the net lifted to the surface near the vessel and the ... continuous pumping system with the catch pumped from the trawl codend while fishing. The full description ... M. Naganobu. 1997. Catch per unit effort and proportional recruit- ment indices from Japanese krill ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 123–134 : Auteur(s): Sologub, D.O. and A.V. Remeslo

4. Potential impacts of bottom trawling on benthic communities in Prydz Bay, Antarctica

   trawls for finfish are designed to minimise the catch of benthos. Nonetheless, bottom trawling in Prydz ... bottom trawls in Prydz Bay, February 1991. Each graph shows the catch from stations marked with ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 403–410 : Auteur(s): Constable, A.J.

5. Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around South Georgia

   indeterminable. These 'unaged' fish came from the total catch and consequently should be included in estimates ... estimating mortality rates in fish populations with special references to sources of bias in catch sampling ... Research Board of Canada, 191: 1-382. Robson, D.S. and D.G. Chapman. 1961. Catch curves and mortality ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 245–257 : Auteur(s): Everson, I

6. Movement and growth of tagged Dissostichus eleginoides around South Georgia and Shag Rocks (Subarea 48.3)

   UK ves- sels. While catch rates were not high enough for fi shing companies to pursue this method ... tagging, targeted fish and high catch rates. Even shallow-caught fish have recruited to fishery ... fishing method. Low catch rates. Many fish suffer hook damage. 106 moved 192 and 163 km, moving ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 101–111 : Auteur(s): Marlow, T.R., D.J. Agnew, M.G. Purves and I. Everson

7. An assessment of CCAMLR measures employed to mitigate seabird mortality in longlining operations for Dissostichus eleginoides around South Georgia

   important factors determining catch of birds per unit of fishing effort. Kock and Selling (1996) reported ... capture during the day; catch rates of these and white-chinned petrels were reduced after early May ... part of the development of a protocol for sampling longlines and their catch requested by CCAMLR (SC ... sampling using random number tables; two of these were then randomly allocated to sampling of catch in ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 217–230 : Auteur(s): Ashford, J.R. and J.P. Croxall

8. Age–length composition of mackerel icefish (Champsocephalus gunnari, Perciformes, Notothenioidei, Channichthyidae) from different parts of the South Georgia shelf

   trawl was towed at 3-3.5 knots for 30 minutes. Catch- ability was assumed to be 100%. Approximately ... -December 1970. The total catch was approximately 10 000 tonnes for that period (SC-CAMLR, 1993), giving a ... catch per unit effort of 55.6 tonnes/vessel/ day. In 1971 /72 this species, together with ... commercial catch data, were available. The length composition of fish varied during 1981 and 1988, but the ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 133–146 : Auteur(s): Frolkina, G.A

9. Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends

   , technical and legal point of view. One of the effective methods of regulating catch may be the ... 500 kilograms of fish, the investigated species constituted at least 20% of the total catch ... Rocks and South Orkney Island on the species predominating in the catch : mackerel icefish ... case of a smaller catch. Another reason for the low selectivity could have been the body shape of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Auteur(s): Zaucha, J.

10. A comparison between otoliths and scales for use in estimating the age of Dissostichus eleginoides from South Georgia

    sampled fish is averaging effect under the central limit theorem shown in Figure 2, and mean age ...

    Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 75–92 : Auteur(s): Ashford, J.R., S. Wischniowski, C. Jones, S. Bobko and I. Everson

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