Résultats de la recherche
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Species identification and age estimation for the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea
methodology has yet to be validated for this species. Von Bertalanffy growth parameters were calculated from ... the readings, separately by sex. M. whitsoni appears to be a slowgrowing and long-lived species ... be from 12 to 14 years. File: 03marriott-etal.pdf ... yet to be validated for this species. Von Bertalanffy growth parameters were calculated from the ... readings, separately by sex. M. whitsoni appears to be a slow- growing and long-lived species, living to ... to be from 12 to 14 years. Résumé Des échantillons de grenadiers macrouridés prélevés dans la ... age at maturity. These parameters are essential inputs in any fi shery yield models. It should be ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 37–51 : Auteur(s): Marriott, P., P.L. Horn and P. McMillan
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WG-FSA-08/60
Title Document No. [ to be completed by the ... tests (see paragraphs B5 to B9) on the middle one-third of each longline, where: B2. During fishing ... Secretariat ] WG-FSA-08/60 Date submitted [ to be completed by the Secretariat ] 29 September 2008 Language ... [ to be completed by the Secretariat ] Original: English Agenda Agenda Item No(s): 5 Title THE ...
Document : Site Section: Publications
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e-sc-xxvii-a4.pdf
... in memory of Dr Edith Fanta who passed away in May 2008. Dr Fanta will be remembered for her ... 48, with advice on a Stage 1 subdivision of the precautionary krill catch limit among SSMUs1 to be ... , paragraph 3.16) and it was 181 generally agreed that it would be important to explore a variety of ... 7.6) that allowed interactions to be explored, principally between: (a) the krill population (b application/pdf attached to:WG-EMM-08
Meeting Report : WG-EMM-08
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Spatial and temporal distribution of krill Euphausia superba biomass in the Ross Sea (1989/90, 1994/95)
, many times, on the pieces of ices broke up by icebreaker, individuals of krill were observed, it can be ... 1994 the investigated area in 80-100% was covered by ice. The above mentioned superswarm was recorded ... in a small area of ice free water. It can be supposed that below ice krill occurred mainly in ... of aggregation can be formed very quickly. During the 1989/'90 expedition hydroacoustic ...
Meeting Document : WG-EMM-97/53 : Auteur(s): Kalinowski, J., Azzali, M.
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Surface water masses, primary production, krill distribution and predator foraging in the vicinity of Elephant Island during the 1989-90 austral summer
February. Krill composed 99% of the diet of chinstrap penguins and over 80% of the diet of fur seals ... were characterized by distinct phytoplankton taxonomic groups. 4) There appears to be a generally ... were observed and may be expected given the small scale of the study area. 5) Antarctic fur seal diving ... effort was not closely correlated with krill abundance; the reason for this may be a problem of the ...
Meeting Document : WG-CEMP-90/11 : Auteur(s): A.F. Amos, J.L. Bengtson, O. Holm-Hansen, V.J. Loeb, M.C. Macaulay and J.H. Wormuth (USA)
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Fishery Report 2017: Closed fishery for Dissostichus spp. in Divisions 58.4.4a and 58.4.4b
2006 closed 0 0 0 0 0 104 2007 closed 0 0 0 0 0 109 2008 closed (80) 0 18 <1 58 77 * 2009 closed 0 0 ... 0 0 0 * 2010 closed (60) 0 9 0 50 59 80 2011 closed (53) 0 0 0 35 35 * 2012 closed (70) 0 0 0 28 ... 2004 (Table 1). In 2010, the last year in which IUU catch was recorded, an estimated 80 tonnes was ... 7.2 (82) 15.9 (77) Japan Shinsei Maru No. 3 6.1 (100) 5.3 (95) 6.1 (82) 7.5 (81) 5.9 (85 ...
Document : Site Section: Publications
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Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed with mitochondrial and intron DNA markers
appeared to be characterised by low diversity; no genetic variation was detected with restriction enzyme ... Division 58.4.2. D. mawsoni appeared to be characterised by low diversity; no genetic variation was ... 75°S (Gon and Heemstra, 1990). D. mawsoni appears to be restricted to waters managed solely by ... number of populations or stock units of D. mawsoni is unknown. There may be one genetic stock with gene ... Sea sample may prove to be a private allele indicating some sub-population division. Nuclear DNA ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 43–51 : Auteur(s): Smith, P.J. and P.M. Gaffney
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Length-at-age in juvenile Patagonian toothfish (Dissostichus eleginoides)
estimated to be from fish 1+ or 2+ years old, with mean total lengths of 32.5 cm and 41.3 cm respectively ... majority of the otoliths (83.6%) were estimated to be from fi sh 1+ or 2+ years old, with mean total ... TL <23 cm were predicted to be 0+ years old, fi sh TL 23–37 cm were predicted to be 1+ years old ... , and fi sh TL 38–46 cm were predicted to be 2+ years old. Fish >46 cm were considered to lie outside ... study are in fact most likely to be 1+. However, no fi sh were caught in the sample taken by the 2000 ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 1–10 : Auteur(s): Ashford, J., C. Jones, S. Bobko and I. Everson
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Age, growth and mortality of Patagonian toothfish (Dissostichus eleginoides) caught off Kerguelen
estimated to be –0.6 years and residual variance 2.9. Age distributions of toothfish caught by two vessels ... trawlers and longliners at Kerguelen, and longevity was estimated to be 36 years. Total instantaneous ... mortality Z was estimated to be between 0.09 and 0.12. Significant differences in age-at-length data between ... sexes were found, estimating von Bertalanffy parameters for males to be L ∞ = 95.9, K = 0.12, t 0 = –4.6 ... 20 30 40 50 0 20 40 60 80 N um be r of fi sh 0 10 20 30 40 50 0 10 20 30 40 50 60 N ... for the age data was estimated to be –0.6 years and residual variance 2.9. Age distributions of ... be 36 years. Total instantaneous mortality Z was estimated to be between 0.09 and 0.12. Signifi cant ... to be L∞ = 95.9, K = 0.12, t0 = –4.6 and for females L∞ = 103.5, K = 0.11, t0 = –4.7. Résumé ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 29–41 : Auteur(s): Ashford, J., G. Duhamel, C. Jones and S. Bobko
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Further analysis of target strength measurements of Antarctic krill at 38 and 120 kHz: comparison with deformed cylinder model and inference of orientation distribution
Abstract: Data collected during the krill target strength experiment [J. Acoust. Soc. Am. 87, 16 ... elongatedanimals are modeled as deformed finite cylinders [J. Acoust. Soc. Am. 86, 691-705 (1989)].Exercise of the ... be made at each frequency. By requiring that the differencebetween predicted and measured target ... strengths be a minimum in a least-squares sense, it ispossible to infer the orientation distribution. This ...
Meeting Document : WG-KRILL-93/06 : Auteur(s): D. Chu (USA), K.G. Foote (Norway) and T. K. Stanton (USA)