Résultats de la recherche
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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
(CCAMLR Division 58.4.3b) based on fine-scale catch and effort data Abstract / Description: In 2006, the ... fine-scale catch and effort data held by CCAMLR for BANZARE Bank, as well as descriptive analyses of ... biological data submitted by scientific observers on board vessels in the fishery. Results of a Leslie ... depletion analysis of stratified catch and effort data indicate that there is strong evidence for depletion ... on fine-sCAle CAtCh AnD effort DAtA J.P. McKinlay, D.C. Welsford, A.J. Constable and G.B. Nowara ... of fine-scale catch and effort data held by CCAMLR for BANZARE Bank, as well as descriptive analyses ... of biological data submitted by scientific observers on board vessels in the fishery. Results of a ... Leslie depletion analysis of stratified catch and effort data indicate that there is strong evidence ...
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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Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the number of concentrations and analytical justification for search data
number of concentrations and analytical justification for search data Abstract / Description: In this ... paper, I show how data that are routinely collected by survey vessels can be used to estimate the number ... . Sample computations are performed, using data collected by Soviet research/survey vessels in the early ... SEARCH DATA M. Mangel Abstract In this paper, I show how data that are routinely collected by ... , 1988) in a given region of the Southern Ocean. Sample computations are performed, using data ... fishery based data if the data are properly chosen. The distributional model used in those reports was ... supported by the analysis of field data (Levin et al., 1989); the notation used in the models will be ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 283–322 : Auteur(s): Mangel, M.
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Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
fishery based on scientific observer data Abstract / Description: To estimate the optimal relative sample ... size of scientific observer data collected on Antarctic krill commercial fishing vessels, the ... the coefficient of variation (CV), although haul sample size affects CV for only krill length data up ... to 10% haul coverage. These results suggest that data collection by scientific observers on board ... contribute to ecosystem monitoring in this area. Although broad-scale survey data obtained from fishing ... other factors (e.g. climate change), the data derived from fishing vessels are liable to have lower ... statistical precision than the data collected by research vessels. This is primarily because the data ... . That is, the data obtained from commercial fishing operation cannot provide an even coverage across ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Auteur(s): Okuda, T. and M. Kiyota
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Some comments on the procedure for testing estimators of krill abundance which utilise survey data
utilise survey data Abstract / Description: Since krill distributional data do show evidence of spatial ... techniques) may provide improved abundance estimates from survey data. However, computer simulation studies ... exponential: (3) Though this is the same form as fitted by Miller and Hampton (1989a) to these data, the ... TESTING ESTIMATORS OF KRILL ABUNDANCE WHICH UTILISE SURVEY DATA D.S. Butterworth*, D.L. Borchers* and ... D.G.M. Miller** * ** Abstract Since krill distributional data do show evidence of spatial ... techniques) ~ provide improved abundance estimates from survey data. However, computer simulation studies ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 191–205 : Auteur(s): Butterworth, D.S., D.L. Borchers and D.G.M. Miller
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Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons
Paper Title: Preliminary analyses of data collected during experimental phases of the 1994/95 and ... 1995/96 Antarctic crab fishing seasons Abstract / Description: Data collected on board the FV American ... data from the Phase 2 depletion experiments did not have significant negative slopes. The insignificant ... their release sites. Density estimates from the mark-recapture data were in the order of 50 000 to 100 ... PRELIMINARY ANALYSES OF DATA COLLECTED DURING EXPERIMENTAL PHASES OF THE 1994195 AND 1995196 ANTARCTIC CRAB ... Jolla Shores Drive La Jolla, Ca. 92037, USA Abstract Data collected on board the FV American ... catch data from the Phase 2 depletion experiments did not have significant negative slopes. The ... movement of crabs away from their release sites. Density estimates from the mark-recapture data were in ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 141–159 : Auteur(s): Watters, G
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Analysis of haul data from the South Georgia krill fishery
Paper Title: Analysis of haul data from the South Georgia krill fishery Abstract / Description ... : Data from individual hauls carried out by vessels operating in the South Georgia krill fishery between ... variability are discussed in relation to previous attempts to model fisheries data and to derive suitable ... DATA FROM THE SOUTH GEORGIA KRILL FISHERY P.N. Trathan, I. Everson and E.J. Murphy British Antarctic ... Suite 303,5445 Mariner Street Tampa, F1.33609-3437, USA Abstract Data from individual hauls carried ... discussed in relation to previous attempts to model fisheries data and to derive suitable abundance indices ... t o stock i n CCAMLR Area 48 were derived from Haul Data from the South Georgia Krill Fishery ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 9–30 : Auteur(s): Trathan, P.N., I. Everson, E.J. Murphy and G.B. Parkes
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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 ... krill consumption (Euphausia superba) are based on data obtained from the Atlantic sector which have ... the Sodruzhestva and Kosmonavtov Seas over many years by the YugNIRO institute. Data obtained from ... SC-CAMLR-X/BG/11 DATA ON KRILL (EUPHAUSIA SUPERBA DANA ... (Euphausia superba) are based on data obtained from the Atlantic sector which have then been extrapolated ... Sodruzhestva and Kosmonavtov Seas over many years by the YugNIRO institute. Data obtained from trawl and ... this amount fish consumed 30 to 32 million tonnes. For the most part these figures are based on data ...
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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Note on estimating krill abundance from acoustic data on individual aggregations
Paper Title: Note on estimating krill abundance from acoustic data on individual aggregations ... , requires less data analysis and does not require any assumptions concerning aggregation distribution or ... ACOUSTIC DATA ON INDIVIDUAL AGGREGATIONS I. Hampton and D.G.M. Miller* Abstract The fundamental ... abundance and its variance since it is easier to apply, requires less data analysis and does not require ... account when the data are used in this way. The chief differences and other considerations are outlined ... estimated from Equation 1 as before. If the aggregation data is available in terms of density rather than ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 219–223 : Auteur(s): Hampton, I. and D.G.M. Miller
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Status of the Polish FIBEX acoustic data from the West Atlantic
Paper Title: Status of the Polish FIBEX acoustic data from the West Atlantic Abstract ... / Description: Acoustic data from the Polish FIBEX survey in the West Atlantic were analysed using recent ... STATUS OF THE POLISH FIBEX ACOUSTIC DATA FROM THE WEST ATLANTIC P.N. Trathan British Antarctic Survey ... , Madingley Road Cambridge CB3 OET, United Kingdom Abstract Acoustic data from the Polish FIBEX survey in ... acoustic data should be re-analysed using recent acoustic target strength (TS) estimates (SC-CAMLR, 1991 ... dataset used by Trathan et al. (1992) was that archived at the BIOMASS Data Centre. This dataset was ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 125–132 : Auteur(s): Trathan, P.N., J. Kalinowski and I. Everson
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Integration of CPUE data into assessments using the Generalised Yield Model
Paper Title: Integration of CPUE data into assessments using the Generalised Yield Model Abstract ... assessments. The use of the method is illustrated using data for Patagonian toothfish (Dissostichus ... CPUE DATA INTO ASSESSMENTS USING THE GENERALISED YIELD MODEL G.P. Kirkwood Renewable Resources ... GYM assessments. The use o f the method is illustrated using data for Patagonian toothfish ... and seasonal patterns in fishing mortality derived from existing data. In the assessment of ... to the rnodel as input data. Consequently, each trial will have a different initial population size ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 65–74 : Auteur(s): Kirkwood, G.P. and A.J. Constable