Résultats de la recherche
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Mincing, mealing and batching: waste management strategies aimed at reducing seabird interactions with trawl vessels
trip compared three treatments (1) mincing all waste (2) discharging unprocessed waste and (3) mealing ... (Nototodarus sloanii). There was no meal plant on board and the mealed treatment was replaced with a batching ... smaller mincer was used. The vessel was bottom trawling, and there were problems with rocks going through ... waste, with only a 10 to 20 minute delay between discharge events being achieved. Despite low numbers of ...
Meeting Document : WG-FSA-07/42 : Auteur(s): E. Abraham and J. Pierre (New Zealand)
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Sea surface temerature anomalies near South Georgia: relationships with the South Atlantic and the Pacific El Niño regions
almost 3 years, and with the West Pacific showing the strongest correlations. These global ... anomalies, with periodicity evident at a lag period of 4 years. To the north of the island significant ... autocorrelation was also evident at a lag period of 1 year; though this was restricted to an area that ... approximately encompassed the Georgia Basin. Crosscorrelation analyses with indices describing the El Niñio ...
Meeting Document : WS-AREA 48-98/10 : Auteur(s): P. Trathan and E.J. Murphy (UK)
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Population of macaroni penguins Eudyptes chrysolophus at Marion Island, 1994/95 to 2002/03, with information on breeding and diet
subantarctic Marion Island have decreased since the early 1980s. Estimates of the population at the island fell ... fledged on average 0.46 chicks per year, an amount thought insufficient to maintain the population ... . However, during this period there was a significant increase in reproductive success with time. In the ... 2002/03, with information on breeding and diet Approval: Approved ...
Meeting Document : WG-EMM-03/15 : Auteur(s): R.J.M. Crawford, J. Cooper and B.M. Dyer (South Africa)
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A survey of fish stocks in the Heard Island and McDonald Islands region in the 1999/2000 season and a comparison of the abundances of selected species with those obtained in previous surveys
between years. This is the result of occasional strong year classes entering the fishery and dominating ... abundances of selected species with those obtained in previous surveys Approval: Approved ... , varying by a factor of 2-3 between years, but C. gunnari abundance can vary by a factor of about 20 ... the population for about 2 years before disappearing, as has been documented in other locations ...
Meeting Document : WG-FSA-00/40 : Auteur(s): R. Williams, A. Constable, T. Lamb and E. van Wijk (Australia)
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INTERACTIONS OF PATAGONIAN TOOTHFISH FISHERIES WITH KILLER AND SPERM WHALES IN CROZET EXCLUSIVE ECONOMIC ZONE: AN ASSESSMENT OF DEPREDATION LEVELS AND INSIGHTS ON POSSIBLE MITIGATION SOLUTIONS
year period we estimated a total loss of 1200 tons of Patagonian toothfish due to depredation which ... data revealed that among the 97 killer whales interacting with the fishery, however 35 individuals ... total of 64 sperm whales interacted with the fishery on the Crozet EEZ in 2008. Significant variations ... of interaction rates with killer whales were detected between vessels suggesting the influence of ...
Meeting Document : WG-IMAF-09/12 : Auteur(s): P. Tixier, N. Gasco, G. Duhamel and C. Guinet (France)
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GROUNDFISH SURVEY IN CCAMLR SUB-AREA 48.3 IN APRIL 2008 WITH PRELIMINARY ASSESSMENT OF MACKEREL ICEFISH
+ and 3+ fish, with differences in the size between Shag Rocks and South Georgia and with few small fish ... Sil, with 70 bottom trawls undertaken giving good geographic coverage. Using 10 strata and the updated ... (2003), the biomass of mackerel icefish was estimated to be 80,426 tonnes, with a lower 1-sided 95% CI ... the 1+ fish produced yield of 3445 tonnes in Year 1 (2008/09) and 2318 tonnes in Year 2 (2009/10). In ...
Meeting Document : WG-FSA-08/28 : Auteur(s): M.A. Collins, R.E. Mitchell, C.E. Main, J. Lawson, J. Watts, J. Slakowski, L. Featherstone and O. Rzewuski (UK)
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Standing stock estimates of finfish biomass from the 2002 Polarstern bottom trawl survey around Elephant Island and the South Shetland Islands (Subarea 48.1) with some notes on the composition of catches taken north of Joinville Island – D’Urville Island
and the South Shetland Islands in January – February 2002 in close collaboration with the U.S ... (Subarea 48.1) with some notes on the composition of catches taken north of Joinville Island – D’Urville ... Chionodraco rastrospinosus. For these species, biomass estimates were found to be 3 comparable to survey ... resembled closely those in previous years. The proportion of juvenile G. gibberifrons, the most abundant ...
Meeting Document : WG-FSA-02/24 : Auteur(s): K.-H. Kock (Germany), C.D. Jones (USA), J. Appel (Germany), G. von Bertouch (CCAMLR Secretariat), D.F. Doolittle (USA), M. la Mesa (Italy), L. Psenichnov (Ukraine), R. Riehl (Germany), T. Romeo (Italy), S. Schöling (Germany) and L. Zane (Italy)
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Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 on the basis of the Soviet mesoscale surveys with Isaacs Kidd midwater trawl
). The most spatial-temporal stability of the krill distribution field with more higher biomass of ... aggregations was observed in the western part of the area from Antarctic Peninsula to the eastern part of the ... the eastern part of the Scotia Sea may cause its absence in the region of South Georgia independing of ... basis of the Soviet mesoscale surveys with Isaacs Kidd midwater trawl Approval: Approved ...
Meeting Document : WG-EMM-98/32 : Auteur(s): V.A. Sushin and K.E. Shulgovsky (Russia)
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Growth and maturation of Euphausia superba Dana in northern areas of its distribution range (with reference to South Georgia and Bouvet Island areas)
E.superba between these two areas persist with a change of climatic epochs. During the warmer climatic epoch ... : Growth and maturation of Euphausia superba Dana in northern areas of its distribution range (with ... maturation in both areas begins earlier and stops later than during the colder epoch. Two spawning peaks are ...
Meeting Document : SC-CAMLR-VIII/BG/22 : Auteur(s): Delegation of USSR
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Simulating nursery areas for Antarctic krill along the western Antarctic Peninsula with relevance for the Domain 1 MPA Planning process
early larval stages of Antarctic krill (the descent-ascent cycle) is largely controlled by temperature ... with temperature and density fields from a high-resolution model scaled by projections for 2030 for the ... areas by 2030 occupy the mid and inner-shelf, consistent with bathymetric depressions and biological hot ... successful descend-ascend cycle and enhance krill early development. Author(s): Delegations of Argentina and ...
Meeting Document : SC-CAMLR-XXXVI/BG/12 : Auteur(s): Delegations of Argentina and Chile