Résultats de la recherche
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Integration of CPUE data into assessments using the Generalised Yield Model
/ Description: For the last three years, CCAMLR's Working Group on Fish Stock Assessment (WG-FSA) has ... been presented In CCAMLR as median abundance In each year with 95'% confidence Integration of CPUE ... standardised CPUE trends with those trends predicted by the GYM ailalyses, in each of the last three years WG ... year Y is the latest year for which we have data from the fishery, and simulation years Y+l to Y+P ... and o2 from Differentiating with respect to q demor~strates that equations 2 and 3. I11 equation 5 ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 65–74 : Auteur(s): Kirkwood, G.P. and A.J. Constable
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Diurnal changes of some biological characteristics of Euphausia superba Dana in swarms (westward of the South Orkney Islands, 24 March to 18 June 1990 - based on data reported by biologist-observer)
with drift of swarm, but not with progress of life cycle at winter postspawning non-feeding season ... . They hardly can be related also with selective stress of fishery activity upon larger specimens of E ... of swarms. When diurnal migration are absent (particularly at most later season) the diurnal changes ...
Meeting Document : WG-KRILL-92/09 : Auteur(s): A.V. Vagin, R.R. Makarov and L.L. Menshenina (Russia)
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Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
-larvae of P. antarcticum with a total length from 13 to 70 mm, were conducted in the southeast of the ... both ex situ and in situ with a mean difference <1.5 dB, although the differences between the ... ), some sizes of P. antarcticum could be confused acoustically with E. crystallorophias, but not with E ... juvenile stages (size: 45–48 mm; age: second year), coinciding with an increase in lipid content in the ... and transversal –3 dB beam widths, were very similar. The trans- ducers were bolted, with their ... experiments targeted at juveniles and post-larvae of P. antarcticum with a total length from 13 to 70 mm ... from 38 to 200 kHz, can predict the experimental TS measured both ex situ and in situ with a mean ...
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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Further development of the fishery plans
established by the Scientific Committee and Commission. In recent years, Plans have been drafted for the krill ... and the information is now presented under 3 sections: 1. management measures and fishery requirements ... ; 2. operational aspect (i.e. “what really happened”); and 3. catches (STATLANT, fine-scale and in ...
Meeting Document : WG-FSA-SAM-04/04 : Auteur(s): Secretariat
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Background and criteria of establishment of Marine Protected Area (MPA) in the Weddell Sea
Russian and German scientists in the eastern part of the Weddell Sea. Data on potentially valuable for ... commercial fishing species in the eastern part of the Weddell Sea collected by German investigators in 1979 ... -2014 in the eastern part of the Weddell Sea. Author(s): A.F. Petrov, V.A. Bizikov, K.V. Shust and ...
Meeting Document : WG-EMM-14/23 : Auteur(s): A.F. Petrov, V.A. Bizikov, K.V. Shust and E.F. Uryupova (Russia)
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Conservation Measure Conservation Measure 227/XX (2001)
, and hauling times; (iii) number and species of fish lost at surface; (iv) number of hooks set; 3 ... , including those with the ‘jellymeat’ condition, shall be reported. 6. Each vessel participating in the ... appointed in accordance with the CCAMLR Scheme of International Scientific Observation, and where possible ... area of 0.5° latitude by 1° longitude with respect to the northwest corner of the statistical subarea ...
Conservation Measure : 227/XX (2001)
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Potential nursery areas for fish in the Prydz Bay region
survey with a fine-meshed midwater trawl in Prydz Bay in January/February 1991 indicated the potential ... reasonably well with the 0+, 1+ and 2+ year groups established by Hubold and Ekau (1986) for P. antarcticum ... southern, eastern and western margins had low or zero catches. The length frequency distribution (Figure 3 ... PRYDZ BAY REGION R. Williams* * Abstract A survey with a fine-meshed midwater trawl in Prydz Bay ... fishes of the Prydz Bay region using equipment with sufficiently fine meshes to sample larval and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 369–380 : Auteur(s): Williams, R.
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Estimating unaccounted fishing mortality in the Ross Sea and 88.2C–G bottom longline fisheries targeting Antarctic toothfish
known. Lost fishing gear should be monitored to provide information to evaluate how well CCAMLR meets ... to estimate unaccounted fishing mortality from lost lines in the Ross Sea region and Subarea 88.2 ...
Meeting Document : WG-FSA-11/48 : Auteur(s): D.N. Webber and S.J. Parker (New Zealand)
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e-sc-viii-a5.pdf
... to say, focusing on a single species (i.e. krill) initially with a view to extending the task to ... interactions with dependent and related species had not been taken into account. 7. The Working Group agreed ... abundance as a way of addressing the problems associated with krill abundance estimation. Acoustics 11 ... information obtainable with different types of acoustic equipment is summarised in Table 1. The Working
application/pdf attached to:WG-KRILL-89Meeting Report : WG-KRILL-89
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Research results from the SPRFMO exploratory fishing program for Antarctic toothfish 2016 and 2017
partial starvation which would be consistent with a spawning event prior to the sampling in 2016 and 2017 ... . Fish length and mass, body condition, sex ratio, and gonad condition were consistent with previous ... measurements collected from fish sampled in this SPRFMO area of study are consistent with previous information ... . Body condition was slightly better in 2017 when sampling occurred about 5 weeks later than in 2016 ...
Meeting Document : WG-FSA-18/39 : Auteur(s): J.M. Fenaughty, M. Cryer and A. Dunn