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Off the hook? Initiatives to reduce seabird by-catch in longline fisheries
population decreases. An International Plan of Action for Reducing Incidental Catch of Seabirds in Longline ... promise for effectively addressing the problem, if nations are willing to develop and implement it ...
Meeting Document : WG-FSA-99/6 : Автор(ы): J. Cooper (South Africa), J.P. Croxall (United Kingdom) and K.S. Rivera (USA)
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STRONG EFFECTS OF ENVIRONMENTAL CONDITIONS ON REPRODUCTIVE SUCCESS OF PENGUINS AT KING GEORGE ISLAND
selected by step-wise model fitting procedures corresponded to the incubation periods for each species. Sea ... ice extent measured during the winter prior to breeding also appears to be an important predictor of ... size, krill density at sea, and chlorophyll a concentrations appear less important, except for ...
Meeting Document : WG-EMM-09/43 : Автор(ы): J. Hinke, C. Reiss and W. Trivelpiece (USA)
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ACCURACY OF BENTHIC INVERTEBRATE BY-CATCH IDENTIFICATION BY OBSERVERS OPERATING IN THE HEARD ISLAND AND MCDONALD ISLANDS PATAGONIAN TOOTHFISH LONGLINE FISHERY
, bryozoans and alyconarians; an issue prevalent in similar fisheries. This suggests the need for further ... to Heard Island and McDonald Islands (HIMI) for onshore verification by taxonomists at the Australian ...
Meeting Document : WG-FSA-09/23 : Автор(ы): T. Hibberd (Australia)
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Midwater trawl catchability regarding quantitative estimation of krill biomass using the method of trawling surveys on abundance
taken as an example, proved the latters not to be suitable for krill biomass estimation using method of ... analysis for catchability of fishery midwater trawls and small research trawls, when Isaaks-Kidd trawl was ...
Meeting Document : WG-KRILL-91/32 : Автор(ы): S.M. Kasatkina (USSR)
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USING GENERALIZED DISSIMILARITY MODELLING TO ANALYSE AND PREDICT PATTERNS OF BETA DIVERSITY IN REGIONAL BIODIVERSITY ASSESSMENT
Abstract: Generalized dissimilarity modelling (GDM) is a statistical technique for analysing and ... approach is an extension of matrix regression, designed specifically to accommodate two types of ... including, for example, information on phylogenetic relationships between species and information on ...
Meeting Document : WS-VME-09/P03 : Автор(ы): Richardson, K., Manion, G., Ferrier, S., Elith, J.
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The Antarctic toothfish Dissostichus mawsoni (Nototeniidae) nutrition in the Ross Sea during the fishing season 2011/12
species were found in the stomachs of the Antarctic toothfish. The main forage organisms for the toothfish ... area the shrimp Notocrangon antarcticus played an important role in the toothfish nutrition ... . Cannibalism was not observed for the Antarctic Toothfish. The average points of the stomach contents at ...
Meeting Document : WG-FSA-12/06 : Автор(ы): Yu.V. Korzun and N.A. Misar (Ukraine)
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Spatio-temporal dynamics of the Antarctic krill fishery within fishing hotspots in the Bransfield Strait and South Shetland Islands
Abstract: The present document is an update of document EMM-16/52, presenting refine analysis of ... the krill fishing hotspots and a description of the daily CPUE pattern for the krill fishery. This ... paper has now been accepted for publication in Fisheries Research. Results identified several fishing ...
Meeting Document : WG-EMM-18/P11 : Автор(ы): F. Santa Cruz, B. Ernst, J.A. Arata and C. Parada
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Relative abundance of large whales around South Georgia
particular feeding ground is the most likely reason for ongoing low numbers of all species. Other factors may ... include: competition for krill by traditional predators such as penguins and seals and more recently by ... humans, an unusually high rate of natural mortality, habitat change such as alteration in sea ice ... and this report demonstrate the need for improved, consistent long-term monitoring of population ...
Meeting Document : WG-EMM-99/34 : Автор(ы): M.J. Moore (USA), S.D. Berrow (UK), B.A. Jensen (USA), P. Carr (UK), R. Sears (Canada) and V.J. Rowntree, R. Payne and P.K. Hamilton (USA)
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PRELIMINARY RESULTS OF TRIALS TESTING MODIFIED LONGLINE GEAR ‘TROTLINES’ IN PRESENCE OF CETACEANS IN SUBAREA 48.3
(cachalotera nets). 2. CPUE (kg/1000 hooks and kg/set) was greater for trotlines than Spanish system lines when ... potential of this gear to reduce cetacean depredation. 3. By-catch to catch ratio was greater by number for ... in much poorer condition to the extent that they were unsuitable for tagging and releasing. 5 ... depredation. ii. Significant problems in understanding the meaning of CPUE for trotlines, and consequently in ...
Meeting Document : WG-FSA-08/44 : Автор(ы): R.E. Mitchell, J. Clark, P. Reyes, L. Jones, J. Pearce, C.E. Edwards and D. Agnew (UK)
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Developing robust biomass estimates and advice on catch limits in research blocks
Scientific Committee requested that the changes to the methods be reviewed, that scientific rational for the ... that improves on the original CPUE by seabed area method for toothfish populations in research blocks ... relationship between CPUE and fish density in the Ross Sea reference area for the first time. The resulting ... together in an integrated statistical to provide robust estimates of biomass in research blocks. Author(s ...
Meeting Document : WG-SAM-17/37 : Автор(ы): S.J. Parker, S. Mormede, A. Dunn, S.M. Hanchet and C. Marsh
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