Résultats de la recherche
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–G for the years 2002–03 to 2010–11
from all vessels led to a 20% increase in biomass. We believe that the SSRU 88.2C–G model provides a ... mawsoni) in Subarea 88.2 SSRUs 88.2C–G for the years 2002–03 to 2010–11 Approval: Approved ...
Meeting Document : WG-FSA-11/43 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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UPDATE OF THE INTEGRATED STOCK ASSESSMENT FOR THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS USING CATCH-AT-AGE DATA AND TWO YEARS OF SURVEY ABUNDANCE-AT-AGE DATA
) samples for each fishing period within that year. For years where insufficient fish were aged the catch-at ... combination of fishery and year had available at least 50 aged fish. For the trawl fisheries that were divided ... into periods within each year, the same ALK for the year was applied to the length frequency (LF ... median score for all aged fish in the assessment was 3 but some fishery-by-year combinations had a higher ...
Meeting Document : WG-SAM-09/09 : Auteur(s): S.G. Candy (Australia)
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Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, in late summer of years 1994–97, Dr E. Holmberg surveys
with/without food in the area of investigation didn't show a consistent pattern from year to year ... in late summer of years 1994-97 was analysed using frequency of occurrence (F%) and coefficient " ... years of krill scarcity and fish, was only occasional or in negligible amounts, showing interannual ... , equivalent to those years of krill scarcity; intermediate in 1995, below the historical years of high ...
Meeting Document : WG-FSA-97/48 : Auteur(s): Barrera-Oro, E., Marschoff, E., Casaux, R.
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Catch per unit effort data from the early years of commercial krill fishing operations in the Atlantic sector of the Antarctic
in single years, between years on a Subarea and Area basis, and between oceanic and shelf regions ... . Results show that the CPUE may differ between Subareas, years and shelf/oceanic regions. Obviously, a ... observed in the years 1975/76 and 1980/81, wheras the lowest CPUE occurred in Subarea 48.3 in 1977/78. The ... . Title: Catch per unit effort data from the early years of commercial krill fishing operations in the ...
Meeting Document : WG-EMM-97/22 : Auteur(s): Sushin, V., Siegel, V.
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Fish in the diet of the blue-eyed shag Phalacrocorax atriceps at the South Shetland Islands: six years of monitoring studies
Abstract: In this document we inform on the results of six years monitoring changes in the diet ... the diet of this bird in the lasts years and the importance of G. gibberifrons fluctuated without ... atriceps at the South Shetland Islands: six years of monitoring studies Approval: Approved ...
Meeting Document : WG-EMM-96/31 : Auteur(s): Barrera-Oro, E., Casaux, R.
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Monitoring of relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South Shetland Islands, in years 2000 to 2003
has continued in Potter Cove from 2000 to 2003, covering a continuous sampling period of twenty years ... in years 2002-2003, whereas G. gibberifrons was absent in the catches. No recovery of the stocks of ... . However, the increase observed in the catches of N. rossii in some years since 1997 might be indicative of ... Shetland Islands, in years 2000 to 2003 Approval: Approved ...
Meeting Document : WG-FSA-03/89 : Auteur(s): E. Barrera-Oro, E. Marschoff, R. Casaux and B. Gonzalez (Argentina)
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Standardised CPUE analysis of the Antarctic toothfish (Dissostichus mawsoni) fishery in the Ross Sea for the years 1997/98 to 2005/06
fishing years. This report revises and updates the previous analysis with the addition of data from the ... that have been in the fishery for at least 4 years. We estimate indices using both lognormal ... reasonable and were consistent between the models presented here and CPUE analyses for previous years. The ... Antarctic toothfish (Dissostichus mawsoni) fishery in the Ross Sea for the years 1997/98 to 2005/06 Approval ...
Meeting Document : WG-FSA-06/47 : Auteur(s): A. Dunn and S.M. Hanchet (New Zealand)
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An updated descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2004/05
toothfish that have been at liberty for 2–3 years have averaged 5–7 cm per year, which is consistent with ... toothfish released and 9 recaptured. For the last two years, when tagging has been part of the Conservation ... by area over the past three years have been in the same proportion as the catch by area. However ... mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2004/05 Approval: Approved ...
Meeting Document : WG-FSA-05/34 : Auteur(s): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)
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Descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2003/04
liberty for 2–3 years have averaged 5– 7 cm per year, which is consistent with growth rates predicted from ... is 13% per year. Author(s): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand) Title: Descriptive ... two years, when tagging has been part of the Conservation Measure, New Zealand vessels have tagged ... between 1.0 and 1.37 toothfish per tonne of catch. Tagging rates by area over the past three years have ...
Meeting Document : WG-FSA-SAM-05/10 : Auteur(s): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)
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ASSESSMENT MODELS FOR ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN SUBAREA 88.2 SSRU E FOR THE YEARS 2002/03 TO 2008/09
from different years. The use of the selected trips with the revised maturity ogive resulted in a ... recapture data from different years. Monte-Carlo Markov Chain (MCMC) diagnostics suggested no evidence of ... : ASSESSMENT MODELS FOR ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN SUBAREA 88.2 SSRU E FOR THE YEARS 2002/03 ...
Meeting Document : WG-FSA-09/41 : Auteur(s): A. Dunn and S.M. Hanchet (New Zealand)