Résultats de la recherche
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By-catch of fish in the krill fishery
Paper Title: By-catch of fish in the krill fishery Abstract / Description: Observations are ... reported of icefish being taken as by-catch during krill fishing operations from a research vessel. The ... results indicate that the by-catch of fish in the commercial krill fishery may be significant in some ... taken as by-catch during krill fishing operations from a research vessel. The results indicate that the ... by-catch of fish in the commercial krill fishery may be significant in some areas of the South ... netting. The fishery operates by aimed tows at krill swarms which have been located using echosounders ... . Recently concern has been expressed that the fishery may be taking a significant by-catch of fish with the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 381–401 : Auteur(s): Everson, I., A. Neyelov and Y.B. Permitin
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Integrating Count Effort by Seasonally Correcting Animal Population Estimates (ICESCAPE): a method for estimating abundance and its uncertainty from count data using Adélie penguins as a case study
Paper Title: Integrating Count Effort by Seasonally Correcting Animal Population Estimates ... function of sampling availability. ICESCAPE (Integrating Count Effort by Seasonally Correcting Animal ... final adjusted estimates. Adjustment for availability bias is achieved by applying an adjustment factor ... -specific estimates to be aggregated to achieve region-scale population estimates. By way of illustration ... IntegratIng Count effort by SeaSonally CorreCtIng anImal PoPulatIon eStImateS (ICeSCaPe): a method for ... function of sampling availability. ICESCAPE (Integrating Count Effort by Seasonally Correcting Animal ... through to the final adjusted estimates. Adjustment for availability bias is achieved by applying an ... -specific estimates to be aggregated to achieve region-scale population estimates. By way of illustration ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 213–227 : Auteur(s): McKinlay, J., C. Southwell and R. Trebilco
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Data on krill (Euphausia superba Dana) consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)
Paper Title: Data on krill (Euphausia superba Dana) consumption by coastal fishes in Division ... tonnes (Lubimova, Shust, 1980 and Shust, 1987). However these extrapolated values of krill consumption by ... the Sodruzhestva and Kosmonavtov Seas over many years by the YugNIRO institute. Data obtained from ... ) CONSUMPTION BY COAST AL FISHES IN DIVISION 58.4.2 (KOSMONA VTOV AND SODRUZHESTV A SEAS) Ye.A. Pakhomov ... , Shust, 1980 and Shust, 1987). However these extrapolated values of kriU consumption by fish and other ... Sodruzhestva and Kosmonavtov Seas over many years by the YugNIRO institute. Data obtained from trawl and ... determine the level of krill consumption by its various predators. Previous assessments (Lubimova, Shust ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 305–319 : Auteur(s): Pakhomov, Y.A., V.A. Bibik and V.V. Gerasimchuk
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines
Paper Title: Comparison of two methods to assess fish losses due to depredation by killer whales ... tonnes and 739 ± 87 tonnes of Patagonian toothfish respectively were estimated to be depredated by the ... approach, which can only be implemented when a sufficient level of by-catch species occurs, provides ... Science, Vol. 22 (2015): 1–14 1 Comparison of two methods to assess fish losses due to depredation by ... were estimated to be depredated by the two species. When the two species co-occurred around vessels, 1 ... depredated Patagonian toothfish. This approach, which can only be implemented when a sufficient level of by ... , such as estimating the amount of biomass loss caused by predators. While these losses can be directly ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Auteur(s): Gasco, N., P. Tixier, G. Duhamel and C. Guinet
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Analysis of results from demersal fish surveys at South Georgia, undertaken by the United Kingdom and the USSR, January and February 1990
Paper Title: Analysis of results from demersal fish surveys at South Georgia, undertaken by the ... in February 1990 around South Georgia. Both surveys were characterized by large numbers of small ... SURVEYS AT SOUTH GEORGIA, UNDERTAKEN BY THE UNITED KINGDOM AND THE USSR, JANUARY AND FEBRUARY 1990 ... February 1990 around South Georgia. Both surveys were characterized by large numbers of small hauls ... provided by Irina Kirillova and Alan Parfitt. The Convener welcomed participants and outlined the ... . DESCRIPTION OF SURVEYS Both surveys had been undertaken in accordance with the design submitted by Dr ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 223–254 : Auteur(s): (Report of a Joint UK/USSR Workshop, 23 to 27 July 1990)
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Sexing of adult Adélie penguins by discriminant analysis of morphometric measurements
Paper Title: Sexing of adult Adélie penguins by discriminant analysis of morphometric ... been determined earlier by means of observing the birds' breeding behaviour (first incubation ... WG-CEMP-90n SEXING OF ADULT ADELIE PENGUINS BY ... each bird had been detennined earlier by means of observing the birds' breeding behaviour (first ... Penguins do not have any clear sexual dimorphism. Determination of penguin sex has been performed by using ... magellanicus, using discriminant analysis of morphometric measurements, was described by Scolaro, Hall and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 543–549 : Auteur(s): Scolaro, J.A., Z.B. Stanganelli, H. Gallelli and D.F. Vergani
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Results of fish larvae sampling by means of fine-meshed samplers attached to a bottom trawl
Paper Title: Results of fish larvae sampling by means of fine-meshed samplers attached to a ... trawl operations were observed. Number of fish caught by samplers constructed using 0.505 mm net were ... similar to those taken by samplers made using 12 mm net with 0.505 mm insets. The 12 mm net was, however ... WG-FSA-88/20 RESULTS OF FISH LARVAE SAMPLING BY MEANS ... of fish caught by samplers constructed using 0.505 mm net were similar to those taken by samplers ... plankton and benthos in samples collected by the 12 mm net with the inset tended to be approximately half ... the volume taken by the 0.505 mm sampler (Table 1). Better filtering efficiency of the 12 mm mesh ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 69-86 : Auteur(s): Ślósarczyk, W. and I. Wójcik
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Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01
Georgia revealed by multiple acoustic surveys during 2000/01 Abstract / Description: Three separate ... designed to complement and extend an existing time series regularly maintained by the British Antarctic ... rose significantly (P = 0.020) by midseason (to 34.7 g m-2). In a pattern that is consistent with ... large). Krill density to the southwest of South Georgia was 32.1 g m-2 in mid-season. By March, krill ... GEORGIA REVEALED BY MULTIPLE ACOUSTIC SURVEYS DURING 2000/01 A.S. Brierley *, C. Goss, S.A. Grant, J.L ... regularly maintained by the British Antarctic Survey since 1996 (and on a more ad hoc basis since the early ... box in the early-season survey was very low (3.5 g m-2) but rose signifi cantly (P = 0.020) by mid ... southwest of South Georgia was 32.1 g m-2 in mid-season. By March, krill density in the western survey ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Auteur(s): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst
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Detection and quantitative estimation of krill concentrations by hydroacoustic instruments
Paper Title: Detection and quantitative estimation of krill concentrations by hydroacoustic ... of towed acoustic antennae. The practical possibility of detecting dispersed krill by hydroacoustic ... ESTIMATION OF KRILL CONCENTRATIONS BY HYDROACOUSTIC INSTRUMENTS K.I. Yudanov (U.S.S.R.) Abstract The ... practical possibility of detecting dispersed krill by hydroacoustic instruments was established on board ... OF KRILL CONCENTRATIONS BY HYDROACOUSTIC INSTRUMENTS Experience in using fish-finding ... abundance is affected to a large extent by peculiarities in the distribution patterns of krill ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 123-139 : Auteur(s): Yudanov, K.I.
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A review of the effectiveness of streamer lines as a seabird by-catch mitigation technique in longline fisheries and CCAMLR streamer line requirements
Paper Title: A review of the effectiveness of streamer lines as a seabird by-catch mitigation ... large degree on the precedent set by CCAMLR in 1991, the streamer line has become the primary, and most ... from Fishing (WG-IMAF), the CCAMLR streamer line requirements were changed by the Commission in 2003 ... (2004): 189–201 189 A REVIEW OF THE EFFECTIVENESS OF STREAMER LINES AS A SEABIRD BY-CATCH MITIGATION ... the precedent set by CCAMLR in 1991, the streamer line has become the primary, and most commonly ... Fishing (WG-IMAF), the CCAMLR streamer line requirements were changed by the Commission in 2003. SHORT ... the vessel. Streamers are attached to the aerial portion of the line, which is maintained by the ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 189–201 : Auteur(s): Melvin, E.F., B. Sullivan, G. Robertson and B. Wienecke