Résultats de la recherche
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Surface water circulation in krill fishing areas near the South Shetland Islands
Paper Title: Surface water circulation in krill fishing areas near the South Shetland Islands ... deployed in shelf and oceanic waters to the north of the South Shetland Islands. Each buoy was deployed ... with a drogue attached at a depth of 30 m to assess flow patterns at the depth range where krill tended ... to be most abundant. The buoys were tracked using the ARGOS satellite positioning system. Based on ... reached the South Georgia area 110 to 120 days after they had left the South Shetlands (Figures 2(a) and ... SURFACE WATER CIRCULATION IN KRILL FISHING AREAS NEAR THE SOUTH SHETLAND ISLANDS T. Ichii and M ... oceanic waters to the north of the South Shetland Islands. Each buoy was deployed with a drogue attached ... at a depth of 30 m to assess flow patterns at the depth range where krill tended to be most abundant ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 125–136 : Auteur(s): Ichii, T. and M. Naganobu
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Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia
Paper Title: Investigation of bias in the mark–recapture estimate of toothfish population size at ... South Georgia Abstract / Description: This paper investigates the influence of mixing of fish, and the ... uneven distribution of tag placements and recapture effort, on bias in the Petersen estimator of ... population size. It does so by constructing a spatial model of the South Georgia toothfish fishery ... as km/year. The available data comprised animals that had been recaptured after 1, 2, 3, 4 and 5 ... years (with zero mortality), and examining the results after this time to see if the test slope ... InvestIgatIon of bIas In the mark–recapture estImate of toothfIsh populatIon sIze at south georgIa D.J. Agnew ... Abstract This paper investigates the influence of mixing of fish, and the uneven distribution of tag ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 47–63 : Auteur(s): Agnew, D.J., G.P. Kirkwood, J. Pearce and J. Clark
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Factors that may influence the accuracy of abundance estimates from CCAMLR tag-recapture programs for Dissostichus spp. and best practice for addressing bias
Paper Title: Factors that may influence the accuracy of abundance estimates from CCAMLR tag ... -recapture programs for Dissostichus spp. and best practice for addressing bias Abstract / Description: The ... Lincoln-Petersen equation, the simplest form of an abundance estimator using tag-recapture data, was used ... programs. The methods that have been used in CCAMLR tag-recapture programs to mitigate such biases, or to ... ) or remediate (account for the effect after it has occurred, such as through correcting a parameter ... estimates of population size. In the CCAMLR area, tagging programs have existed in some fisheries for ... vessels commenced in the fishery at Heard Island and the McDonald Islands (Division 58.5.2) in 1998 ... (Williams et al., 2002) and at South Georgia (Subareas 48.3) and in the Ross Sea (Subarea 88.1) in 2000 ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 63–72 : Auteur(s): Welsford, D.C. and P.E. Ziegler
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Commercial krill fisheries in the Antarctic, 1973 to 1988
Paper Title: Commercial krill fisheries in the Antarctic, 1973 to 1988 Abstract / Description ... : STATLANT data reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR ... ) are used to discern observable trends in catch and effort for the Antarctic krill (Euphausia superba ... ) fishery between 1972/73 and 1987/88. The annual krill catch rose gradually to a peak of some 500 000 ... Butterworth (1988). Krill CPUE Simulation Study this would require documentation of the start and end ... SC-CAMLR-VII1I8G/11 COMMERCIAL KRILL FISHERIES IN THE ... ANTARCTIC, 1973 TO 1988 D.G.M. Miller Abstract ST ATLANT data reported to the Commission for the ... effort for the Antarctic krill (Euphausia superba) fishery between 1972/73 and 1987/88. The annual ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 229–281 : Auteur(s): Miller, D.G.M.
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The status of krill (Euphausia superba DANA) resources in CCAMLR Statistical Divisions 58.4.2 and 58.4.3 from 1988 to 1990. Results of acoustic surveys
Paper Title: The status of krill (Euphausia superba DANA) resources in CCAMLR Statistical ... 1977 the YugNIRO Research Institute (Kerch, USSR) has carried out biological and ecological monitoring ... of krill resources in the central part of the Indian Ocean sector of the Antarctic (CCAMLR ... Statistical Divisions 58.4.2 and 58.4.3). Results of surveys conducted from 1988 to 1990 are discussed in the ... determined by a technique based on the processing of echo sounder records and trawl catch data, but after ... WG-KRILL-90/17 THE STATUS OF KRILL (EUPHAUSIA SUPERBA ... ACOUSTIC SURVEYS V.A. Bibik and V.N.Yakovlev* Abstract Since 1977 the YugNIRO Research Institute ... (Kerch, USSR) has carried out biological and ecological monitoring of krill resources in the central ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 163–173 : Auteur(s): Bibik, V.A. and V.N. Yakovlev
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From the Editor
Paper Title: From the Editor File: 12editor.pdf ... Science and the science used by CCAMLR In the exchange between Drs Everson and Brierley, the values ... for the total biomass of krill, esti- mated using data collected during the CCAMLR- 2000 Survey ... , represent two of the estimates availa- ble. As the exchange reflects, there are a number of ways in which ... such estimates can be derived and CCAMLR recognises the importance of consider- ing all plausible ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 199
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Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
Paper Title: Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the ... -larvae of P. antarcticum with a total length from 13 to 70 mm, were conducted in the southeast of the ... continental slope and shelf of the Ross Sea at depths from 30 to 120 m, during the Italian expeditions of 1997 ... /98, 2000 and 2004. The regression lines for estimating TS from nine experiments were: TS 38 ... and after each trial and subtracted from the measured data. However, this contribution was ... ). Immediately after every haul, a CTD station was performed. On average, the nine hauls were carried out at a ... . Results from the theoretical model After measurements of the dimensions of 18 preserved fish, ranging in ... sTrengTh sTudies on anTarcTic silverfish (Pleuragramma antarcticum) in The ross sea M. Azzali, I ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Auteur(s): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi
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Standardization of fishing effort for Champsocephalus gunnari in the South Georgia area (Subarea 48.3)
Paper Title: Standardization of fishing effort for Champsocephalus gunnari in the South Georgia ... to solve the model and the resultant yearly standardized CPUE shows the same trends independent of ... the values selected to standardize the model. The mean coefficient of variation for the CPUE values ... CHAMPSOCEPHALUS GUNNARI IN THE SOUTH GEORGIA AREA (SUB AREA 48.3) P.S. Gasiukov* Abstract Traditional ... gear, months and years). Multiple regression is used to solve the model and the resultant yearly ... standardized CPUE shows the same trends independent of the values selected to standardize the model. The mean ... coefficient of variation for the CPUE values was 0.399. Resume Le ca1cul traditionnel des series de ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 327–336 : Auteur(s): Gasiukov, P.S.
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An assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (CCAMLR Division 58.4.3b) based on fine-scale catch and effort data
Paper Title: An assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank ... (CCAMLR Division 58.4.3b) based on fine-scale catch and effort data Abstract / Description: In 2006, the ... CCAMLR Scientific Committee expressed concern as to the status of the stock on which the exploratory ... biological data submitted by scientific observers on board vessels in the fishery. Results of a Leslie ... fish- ing all occurs after the legal fishery, then the rate of depletion and the initial biomass ... Assessment of the explorAtory fishery for Dissostichus spp. on BAnZAre BAnk (CCAmlr Division 58.4.3b) BAseD ... Department of the Environment, Water, Heritage and the Arts Australian Antarctic Division 203 Channel ... Highway, Kingston 7050 Tasmania, Australia Email – john.mckinlay@aad.gov.au Abstract In 2006, the ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 55–78 : Auteur(s): McKinlay, J.P., D.C. Welsford, A.J. Constable and G.B. Nowara
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Distribution and relative abundance of juvenile icefish (Champsocephalus gunnari) from a trawl survey of the South Georgia shelf in June–July 1985
) from a trawl survey of the South Georgia shelf in June–July 1985 Abstract / Description: A trawl ... survey of the distribution and relative abundance of juvenile icefish (Champsocephalus gunnari) in South ... Georgia waters was carried out in June–July 1985. Shelf and slope areas extending from the 12 nautical ... mile protected zone around South Georgia to the 500 m isobath were sampled with a specially designed ... -end indicated the occurrence of juvenile fish up to a depth of 500 m. - 60 - A 24-hour station ... ABUNDANCE OF JUVENILE ICEFISH (CHAMPSOCEPHALUS GUNNARI) FROM A TRAWL SURVEY OF THE SOUTH GEORGIA SHELF IN ... the distribution and relative abundance of juvenile icefish (Chamsocephalus gunnari) in South ... Georgia waters was carried out in June-July 1985. Shelf and slope areas extending from the 12 Nautical ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 55-63 : Auteur(s): Boronin, V.A., G.P. Zakharov and V.P. Shopov