Résultats de la recherche
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Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
datasets were calculated by the multistage sampling formula with the variance terms derived from the ... population dynamics. Variances of observer datasets were calculated by the multistage sampling formula with ... variables of interest, krill lengths were measured for ca. 100 individuals from a haul, with 9.2% of hauls ... prior distribution with a mean of zero and a large variance term (10 000 in this model). αi, βj and γ ... respectively. These parameters were assumed to follow a normal distribution for the prior with a mean of zero ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Auteur(s): Okuda, T. and M. Kiyota
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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
animal count data to a common reference point of breeding chronology for species with a complex temporal ... reported measures of uncertainty associated with originally published counts are propagated through to the ... animal count data to a common reference point of breeding chronology for species with a complex temporal ... , all reported measures of uncertainty associated with originally published counts are propagated ... interacts with the types of bias noted above, concerns sampling. Often, sam- ple counts will be taken from ... relatively brief visits to sites, compared with collecting adjustment data that may require much longer ...
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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Estimates of global krill abundance based on recent acoustic density measurements and their implications for the calculation of precautionary catch limits and the designation of management areas
result of new surveys because the method used to calculate precautionary limits uses a value of 11 % of ... the new survey of the South Atlantic is likely to result in an effective biomass which is greater than ...
Meeting Document : WG-EMM-99/22 : Auteur(s): S. Nicol, A. Constable and T. Pauly (Australia)
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Krill population biology during the 1991 Chilean Antarctic krill fishery
and 55 mm TL, with a mean TL of 45 mm for females and 48 mm for males. A very weak mode for juvenile ... % juveniles. Of the females sampled, 25.2% bore spermatophores. Although the smallest specimen found with a ... spermatophore had a 36.5 mm TL, 80% of the females with spermatophores had a TL larger than 45 mm. In Area B, a ... bimodal size frequency distribution and a larger size range were found, with one mode between 32 and 55 mm ... between 30 and 55 mm TL, with a mean TL of 45 mm for females and 48 mm for males. A very weak mode for ... specimen found with a spermatophore had a 36.5 mm TL, 80% of the females with spermatophores had a TL ... , with one mode between 32 and 55 mm TL (mean length 43 mm for females and 46 mm for males), and the ... %, males 40% and juveniles 12.9%. Of the females sampled, 27.1 % bore spermatophores, with a size range ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 223–235 : Auteur(s): Mujica R., A., E. Acuña S. and A. Rivera O.
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Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)
most reliable method. Mean length data at age presented here for Low I. specimens were compared with ... presented here for Low I. specimens were compared with previous published values. This confirmed that fish ... al. (1985); Shust and Pinskaya (1978) and Skora (quoted in Kock et al. 1985) worked with scales ... , while Hoffmann (1982) worked with first pelvic fin ray. Later on, Clasing et al. (1985), using otoliths ... of this paper is to contribute new data on age and length of N. gibberifrons from the South Shetland ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Auteur(s): Barrera-Oro, E.
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Sea Ice Animation - SRZ 2010
Sea ice characterisation of the proposed Ross Sea region Marine Protected Area SRZ described in SC ...
Page : Site Section: Science
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Sea Ice Animation - SRZ 2008
Sea ice characterisation of the proposed Ross Sea region Marine Protected Area SRZ described in SC ...
Page : Site Section: Science
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Proposed conservation measure for bottom fishing activities in the CCAMLR Area
marine ecosystems from bottom fishing activities that have significant adverse impacts on such ecosystems ...
Meeting Document : CCAMLR-XXVI/26 : Auteur(s): Delegation of the USA
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Fish distribution and biomass in the Heard Island zone (Division 58.5.2)
distribution, but abundance is lower and less variable with location and between surveys. Dissostichus ... lower and less variable with location and between surveys. Dissostichus eleginoides is widespread over ... - Bottom trawl, 36.9 m headline length, with 50 mm mesh cod end liner. All meshes 'diamond' pattern ... . Ground gear with 35.6 cm rubber or steel bobbins, 2.4 X 1.5 m vee doors, 35 m bridles and 25 m sweeps ... . Survey Start 22 May 1990 23 January 1992 29 August 1993 Net performance was monitored with a ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 1–20 : Auteur(s): Williams, R. and W.K. de la Mare
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Report on assessment and avoidance of incidental mortality in the Convention Area 1998/99
Abstract: This papaer summarises reports of lost, discarded and deployed fishing and marine gear ...
Meeting Document : CCAMLR-XVIII/BG/31 : Auteur(s): Delegation of Australia