Résultats de la recherche
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Catch Uncertainty in Krill Fisheries
Abstract: Catch uncertainty is a component of uncertainty that is not routinely considered by ... reported catch of 600 000t could actually represent a catch in ‘green weight’ of 2.5 million tonnes ... well as the product composition of catches. Author(s): Secretariat Title: Catch Uncertainty in Krill ...
Meeting Document : WG-EMM-08/46 : Auteur(s): Secretariat
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A review of rattail (Macrourus spp.) and skate by-catch and analysis of standardised CPUE, for the exploratory fishery in the Ross Sea (CCAMLR Subareas 88.1 and 88.2) from 1997/98 to 2004/05
were vessel, area, and depth. Catch rates of rattails were highest along the shelf edge (SSRUs 88.1E ... rattail catch rates between different vessels. Examination of vessel characteristics showed that catch ... Korean vessels had extremely low catch rates compared to other vessels. Standardised CPUE of rattails has ... determine factors influencing catch rates of skates from either C2 or observer data because a proportion of ...
Meeting Document : WG-FSA-05/24 : Auteur(s): S.L. Ballara and R.L. O’Driscoll (New Zealand)
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Assessment of yield and status of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean: implications for managing by-catch in CCAMLR fisheries
catch rates of M. carinatus in longline fisheries targeting Dissostichus eleginoides. Applying the ... critical y to the mean density observed in the survey results gives a catch rate of 5.81 kg/km2 which ... % of the total catch allowed for D. eleginoides in fine scale areas in new and exploratory fisheries ... . This catch rate may be useful in setting general by-catch rules for M. carinatus to protect the species ...
Meeting Document : WG-FSA-99/69 : Auteur(s): E.M. van Wijk, A.J. Constable, R. Williams and T. Lamb (Australia)
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Rajid by-catch in the longline fishery for toothfish in Subarea 48.3
from April to July 1999. The overall average catch rate of rays was 0.7/thousand hooks, compared with ... models demonstrated that there are significant differences between the catch rates of rays for different ... Rocks and South Georgia, achieved average catch rates of over 1 ray/thousand hooks, and 20-30 rays ... / thousand toothfish. Catch rates were lowest to the south and east of South Georgia. The two species most ...
Meeting Document : WG-FSA-99/40 : Auteur(s): D.J. Agnew, J. Taylor and I. Everson (United Kingdom)
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Integrated weight longlines: potential for reduction of skate by catch in demersal longline fisheries
, Alaska, USA. The skate catch rate was 11% lower on the IW gear compared to unweighted gear. Location ... , month and depth were also significant predictors of skate catch rates. While results indicate IW shows ... potential to reduce skate catch rates, further evaluation and analysis by individual species should be ... ) Title: Integrated weight longlines: potential for reduction of skate by catch in demersal longline ...
Meeting Document : WG-FSA-07/51 : Auteur(s): K. Dietrich and E. Melvin (USA)
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A review of the Somniousus (sleeper shark) subgenus and a risk assessment of the sleeper shark by-catch caught in Australian sub-Antarctic fisheries
antarcticus is caught as by-catch in Australian subantarctic fisheries at Heard and McDonald Islands (Division ... 58.5.2) and Macquarie Island. Based on present by-catch rates, a risk assessment for this species ... monitoring of by-catch of this species is ongoing. Author(s): E.M. van Wijk, R. Williams and J.D. Stevens ... shark by-catch caught in Australian sub-Antarctic fisheries Approval: Approved ...
Meeting Document : WG-FSA-03/69 : Auteur(s): E.M. van Wijk, R. Williams and J.D. Stevens (Australia)
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By-catch in Australian fisheries in Divisions 58.5.2, 58.4.2 and 58.4.3 during the 2002/03 and 2003/04 fishing seasons
/2004 seasons. Bycatch in the trawl fisheries was low, approximately 1 to 2% of the total catch (target ... plus bycatch). Bycatch in the longline fisheries was higher, ranging from 8% to 14% of the total catch ... therefore target catch was low. The main bycatch species were skates and grenadiers in the D. eleginoides ... fishery and skates and C. rhinoceratus in the C. gunnari fishery. The total skate catch in Division 58.5.2 ...
Meeting Document : WG-FSA-04/68 : Auteur(s): E. van Wijk and R. Williams (Australia)
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Preliminary results on by-catch of fish during krill fishery in March to May 1993 on the polish trawler M/T Lepus
-catch of juvenile fish in the krill fishery was small. and off South Orkney Islands there was no such by ... -catch at all in the samples collected. In both areas a small by-catch from the family Myctophidae was ... observed. Author(s): Z. Cielniaszek and R. Pactwa (Poland) Title: Preliminary results on by-catch of fish ...
Meeting Document : WG-FSA-94/25 : Auteur(s): Z. Cielniaszek and R. Pactwa (Poland)
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Krill catch distribution in relation to predator colonies 1987 to 1992
is similar to that seen for other years, with 70% of the total catch from Subarea 48.1 being taken ... the total catch from this subarea was taken in the critical period distance, compared to 5 to 78% in ... previous years. It is estimated that the catch in the critical period-distance was equal to 12% and 15% of ... : Krill catch distribution in relation to predator colonies 1987 to 1992 Approval: Approved ...
Meeting Document : WG-KRILL-93/10 : Auteur(s): Secretariat
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A review of the effectiveness of streamer lines as a seabird by-catch mitigation technique in longline fisheries and CCAMLR streamer line requirements
Paper Title: A review of the effectiveness of streamer lines as a seabird by-catch mitigation ... (2004): 189–201 189 A REVIEW OF THE EFFECTIVENESS OF STREAMER LINES AS A SEABIRD BY-CATCH MITIGATION ... by-catch mitigation, conservation measure, CCAMLR ... signifi cant reductions in the by-catch of seabirds using a single streamer line compared to no streamer ... line was used; however, they note that one vessel using a streamer line had high levels of by-catch ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 189–201 : Auteur(s): Melvin, E.F., B. Sullivan, G. Robertson and B. Wienecke