Résultats de la recherche
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The effects of an experimental hake Merluccius capensis/paradoxus longline fishery on Procellariiform seabirds in South Africa - a preliminary investigation
Abstract: Due to the detrimental effect longline fisheries have had on seabirds in other parts of ... Procellariiform seabirds in South Africa. Carcases of Procellariiform seabirds caught on Hake longlines during ... responsible for 1928 ± 1345 whitechinned petrel deaths a year in South African waters. Stepwise multiple ... regression suggested that light intensity was the critical factor explaining variation in the number of ...
Meeting Document : WG-FSA-95/21 : Auteur(s): Barnes, K.
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Orientation of Antarctic krill in an aquarium
strength (TS) values, since TS varies with body orientation. Krill body orientation was measured in an ... . Although mature females with marked swelling of the cephalothorax were not included in the experiment, the ... center of mass was found to be situated more to the anterior than in males and immature females. The ... anterior and the pleopods are less developed in females. It is concluded that the orientation, and ...
Meeting Document : WG-KRILL-93/24 : Auteur(s): Y. Endo (Japan)
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An assessment of Chaenocephalus aceratus and Pseudochaenichthys georgianus in Subarea 48.3
Abstract: Chaenocephalus aceratus and Pseudochaenichthys georgianus have been exploited in ... for these two species by assuming that 75% of the ‘unidentified fish’ caught by the Soviet Union in ... and length data from Polish research and commercial sources has been used with the new catch data in a ... ) (bycatch) limit of 300 tonnes would seem to be appropriate to allow recovery of both species in the near ...
Meeting Document : WG-FSA-90/06 : Auteur(s): D.J. Agnew (Secretariat) and K.-H. Kock (Germany)
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Assessment models for Patagonian toothfish in research block 5843a_1 of Division 58.4.3a, Elan Bank
status assessments of Dissostichus eleginoides in research block 5843a_1 in Division 58.4.3a for the ... generally based on those with the same names in WG-SAM-14/17 as follows: 1) R.0.1 model without tagging ... comprised of two fisheries split by depths of 1 200 m as the model in WG-SAM-14/17. Number of longlines was ... biomass (B 0) estimate. The MPD estimate of B 0 was 464 and 772 tonnes in R.0.1 and R.1 models ...
Meeting Document : WG-FSA-14/22 : Auteur(s): K. Taki (Japan)
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Deployment and recovery of an archival tag on an Antarctic toothfish in the Ross Sea
migration patterns in fishes. Understanding these movement patterns is one of the key information needs for ... large toothfish on the Ross Sea slope in January 2013 and report on the first recovery of an Antarctic ... toothfish tagged with an archival tag. The fish was recaptured in the fishery the following season (December ... and contrasting patterns throughout the time series in several variables recorded and several periods ...
Meeting Document : WG-FSA-14/64 : Auteur(s): S.J. Parker, D.N. Webber and R. Arnold (New Zealand)
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The 2014 annual random stratified trawl survey in the waters of Heard Island (Division 58.5.2) to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari
, which had not been sampled since 2005. The catches of C. gunnari were less than half of those in 2013 ... catches in 2014 were slightly higher than the average RSTS take. Catches at Shell Bank consisted mostly of ... L. squamifrons and a small quantity of C. rhinoceratus. There were no C. gunnari caught in this ... stratum. The catch of invertebrates in the 2014 survey was 3.4 t, with the most abundant taxa being the ...
Meeting Document : WG-FSA-14/41 : Auteur(s): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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Seasonal variation in the diet of Arctocephalus gazella at 25 de Mayo/King George Island, South Shetland Islands, Antarctica
. gazella during the winter period in the South Shetlands area. A total of 224 scats were collected in the ... antarcticum constituted the dominant fish prey species; in winter only P. antarcticum was dominant, while ... myctophids were absent. The only squid species present in the diet was Slozarsykowia circumantarctica. It is ... ) Title: Seasonal variation in the diet of Arctocephalus gazella at 25 de Mayo/King George Island, South ...
Meeting Document : WG-EMM-15/37 : Auteur(s): A. Harrington, G.A. Daneri, A.R. Carlini, D.S. Reygert and A. Corbalán (Argentina)
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Population status of Ross Sea killer whales (Orcinus orca, Type C) in McMurdo Sound, Antarctica, based on photo-identification studies
-eating ecotype, in McMurdo Sound, Antarctica, during 7 seasons, over a 14-year period from 2001/02 to ... 2014/15. Using photo-identification methods, we identified 352 individual RSKWs in the Sound and up to ... toothfish (Dissostichus mawsoni) may have led to a marked decline RSKW numbers in the southwestern Ross Sea ... , our analysis suggests that at least the resident killer whale population in McMurdo Sound is stable ...
Meeting Document : WG-EMM-16/50 : Auteur(s): R. Pitman, H. Fearnbach and J.W. Durban
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Using data recorded during commercial krill fishing in Feedback Management
same time the data might inform about patterns in the ecosystem of importance to FBM. Similarly ... distribution and abundance of krill in the South Orkney Islands. However, due to the lack of survey design ... might inform about some of this uncertainties. In this paper we discuss how the information of these two ... papers can be used in an operational FBM. Author(s): O.R. Godø, G. Skaret and E. Niklitschek Title ...
Meeting Document : WG-EMM-16/74 : Auteur(s): O.R. Godø, G. Skaret and E. Niklitschek
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An outline of narrowband echosounder survey methods to estimate biomass of Antarctic krill in CCAMLR Division 58.4.1 during 2018/19 season by the Japanese survey vessel, Kaiyo-maru
will be conducted in CCAMLR Division 58.4.1 during 2018/19. The biomass estimation will be conducted ... in 2000 as the CCAMLR-2000 survey. Quantitative echosounders has evolved since then and a current ... CCAMLR standard will be employed in the analysis but utility of 70 kHz data will also be investigated ... discussed at ICES WGFAST and this aspect will also be investigated in this survey. Author(s): K. Abe, K ...
Meeting Document : SG-ASAM-18/02 : Auteur(s): K. Abe, K. Amakasu, R. Matsukura, T. Mukai and H. Murase