Search results
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Changes in the diet of the South Georgia shag Phalacrocorax georgianus at the South Orkney Islands along four consecutive years
molluscs (mainly octopods and bivalves) and polychaetes. Harpagifer antarcticus (in 1995 and 1998) and ... prey in all of the seasons and predominated in mass in 1995 and 1996, followed by Notothenia coriiceps ... and L. nudifrons. In 1997 G. gibberifrons and N. coriiceps were the species that most contributed to ... the diet whereas N. coriiceps and H. antarcticus did in 1998. Our results differ from those reported ...
Meeting Document : WG-EMM-00/8 : Author(s): R. Casaux and A. Ramón (Argentina)
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Results of E.L. Holmberg 1995 fish survey in Subarea 48.3
Abstract: The survey comprised 48 bottom trawl hauls taken in subarea 48.3. About 80% of the ... hauls were intended as replicates of the position of hauls in the 1994 survey, allowing site by site ... and 1.0 miles from those in the previous survey. Mean densities were obtained considering the spatial ... aggregation of stations in a nested ANOVA model. An increase over last year's values was observed in the ...
Meeting Document : WG-FSA-95/35 : Author(s): Marschoff, E., Madirolas, A., Balestrini, C., Tossonotto, G., Gonzalez, B., Calcagno, J.
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Update on the conservation status, distribution and priorities for albatrosses and petrels in the CCAMLR area
distribution in the CCAMLR area are still uncertain or showed declines during the last two decades, and two ... incidental mortality in longline and trawl fisheries. CCAMLR has achieved outstanding success in reducing ... seabird bycatch in the area under its jurisdiction to negligible levels. However, the species distributed ... in the Convention Area are highly migratory and largely extend their distribution in neighbouring ...
Meeting Document : SC-CAMLR-XXXVII/BG/10 : Author(s): Submitted by the ACAP Secretariat
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Fish and squid in the diet of king penguin chicks, Aptenodytes patagonicus, during winter at sub-Antarctic Crozet Islands
of the fish diet, constituting together 32 % by mass. The three main species of myctophids eaten in ... summer by king penguins were either very rare in winter (Electrona carlsbergi) or accounted for a smaller ... other myctophids, which are rarely consumed in summer, contributed 24% of the diet by mass in winter ... Electrona subaspera = 1.0%). The greater diversity of prey in winter suggests a more opportunistic feeding ...
Meeting Document : WG-EMM-97/09 : Author(s): Cherel, Y., Ridoux, V., Rodhouse, P.G.
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Matlab code for calculating krill biomass in a survey area
Abstract: In 2010, CCAMLR tasked the Subgroup on Acoustic Survey and Analysis Methods (SG-ASAM ... ) to recalculate the catch limit for Antarctic krill in the Scotia Sea based on updated acoustic ... algorithms developed since the first calculation in 2000. Subsequent to the 2010 SG-ASAM, code used to obtain ... collection of code has revealed inconsistencies and omissions in the documentation, complicating attempts by ...
Meeting Document : SG-ASAM-16/03 : Author(s): A. Cossio, J. Renfree and C. Reiss
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the years 1997–98 to 2010–13
model for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region (Subareas 88.1 and SSRUs ... selectivity for the fishery in the North. We recommend model R2 be used to provide catch limits for the stock ... biomass, in particular the data from the 2012 tagged fish. We expect this is due to higher catches in ... for recapture) than the other slope SSRUs 88.1H and I. Fish released or recaptured in SSRU K have ...
Meeting Document : WG-FSA-13/51 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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A REVIEW OF THE METHODS USED TO RELEASE SKATES (RAJIIDS), WITH OR WITHOUT TAGS, IN ANTARCTIC EXPLORATORY FISHERIES
fishing vessels in the Ross Sea (CCAMLR Subareas 88.1 and 88.2) in 1999/2000. Based on preliminary results ... Scientific Committee gave approval in 2004 for licensed vessels to cut live skates from the line (while in ... implemented was that some form of in-water release would be the ideal to improve survival chances ... Assessment (WG-FSA) noted in 2004, when recommending skate release as an option to the Scientific Committee ...
Meeting Document : WG-FSA-08/30 : Author(s): J.M. Fenaughty (New Zealand)
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Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands derived from a long-term monitoring program (1983–2006) at Potter Cover
twenty four years, and at Harmony Cove, Nelson Island, in the austral summers from 2001 to 2003. The ... decline in trammel net catches of fjord fishes of the species Notothenia rossii and Gobionotothen ... gibberifrons in relation to the non commercially fished Notothenia coriiceps, which was previously reported for ... . rossii catches from 1991 to 2006, the actual levels are half of those found in the early 1980s, while ...
Meeting Document : WG-FSA-06/25 : Author(s): E.R. Barrera-Oro and E.R. Marschoff (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
) since 1997 in CCAMLR Subareas 88.1 and 88.2. Previously, standardised analysis of toothfish CPUE (catch ... that have been in the fishery for at least 4 years. We estimate indices using both lognormal ... generalised linear models and a Tweedie mixed model. The variables included in the analysis appeared ... yearly indices were relatively stable between 1998 and 2003, with a decline in 2004, and an increase in ...
Meeting Document : WG-FSA-06/47 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
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Preliminary assessment of Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a survey in May 2002
Abstract: A survey of Patagonian toothfish, Dissostichus eleginoides, was undertaken in Division ... 58.5.2 in the vicinity of Heard Island in May 2002 to provide the information for an assessment of long ... -term annual yield in the 2002/2003 CCAMLR season and beyond. This paper provides a preliminary ... estimate of biomass of juvenile Patagonian toothfish in the vicinity of Heard Island was similar to the ...
Meeting Document : WG-FSA-02/70 : Author(s): A.J. Constable, R. Williams and T. Lamb (Australia)