Résultats de la recherche
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Ross Sea Biodiversity, Part I: validation of the 2007 CCAMLR Bioregionalisation Workshop results towards including the Ross Sea in a representative network of marine protected areas in the Southern Ocean
meeting of CCAMLR039;s Scientific Committee and the Environmental Protocol039;s Committee on ... Bioregionalization Workshop (2007) as well as the report of ASOC (2010), for identifying the Ross Sea as one of 11 ... information presented herein show that the Ross Sea: Author(s): D.G. Ainley, G. Ballard and J. Weller (USA ...
Meeting Document : WG-EMM-10/11 : Auteur(s): D.G. Ainley, G. Ballard and J. Weller (USA)
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NET-BASED VERIFICATION OF ACOUSTIC TECHNIQUES USED TO IDENTIFY ANTARCTIC KRILL
that were collected during two cruises to the South Georgia region in 1996. For each krill aggregation ... ’ algorithm attributed more than 90 % of the total backscatter to krill in all but 1 aggregation with the ‘2 ... freq model’ using a smaller window but still attributing more than 90 % of the total backscatter to ... krill in 12 out of the 16 nets. The ‘2 freq 2 – 12’ window only attributed more than 90 % of the total ...
Meeting Document : WG-EMM-08/54 : Auteur(s): J. Watkins and S. Fielding (United Kingdom)
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Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia
concentrated away from tag concentrations, or overly concentrated in them, the Petersen estimator either over ... magnitude of the estimated bias to correct the tagging estimate made last year for 48.3, we do conclude that ... model incorporates the facility for releases by box over a number of years. The model performed as ... an under-estimate of the true population size rather than an over-estimate of it. Author(s): D.J ...
Meeting Document : WG-FSA-SAM-05/6 Rev. 1 : Auteur(s): D.J. Agnew, G.P. Kirkwood, J. Pearce and J. Clark (United Kingdom)
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Reproduction in Antarctic notothenioid fish - a review
gunnari in the Atlantic Ocean sector do not spawn each year. Gonadosomatic index (GSI) of females is 15–40 ... –20% of that of females. Length at first spawning may be from 55% of Lmax onwards, but in many species ... it is not attained until 70–80% of the maximum length. The only exception is Champsocephalus gunnari ... 15–20 000 eggs. Ova diameter varies from 0.8 to 5.0 mm. Egg size distribution among fishes of the ...
Meeting Document : SC-CAMLR-X/BG/12 : Auteur(s): Delegation of Germany
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Reports on abundance and biological information on toothfish in Division 58.4.4 a and b by Shinsei Maru No. 3 in 2010/11 season
longline vessel, Shinsei Maru No. 3, from March 30 to May 2, 2011. The survey was undertaken according to ... report described the results during the survey in two SSRUs (B & C) of Ob Lena Bank. Total catch ... the CPUE in terms of number was same level between the years. This may be due to the catch of small ... between the fish released with tag and that of overall catch was considerably high (θ=95 %). Author(s ...
Meeting Document : WG-SAM-11/06 : Auteur(s): K.Taki, T. Iwami and M. Kiyota (Japan)
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Revised reports on abundance and biological information on toothfish in Division 58.4.4 a and b by Shinsei Maru No. 3 in 2010/11 season
longline vessel, Shinsei Maru No. 3, from March 30 to May 2, 2011. This report described the results during ... the survey in two SSRUs (B & C) of Ob Lena Bank. Total catch (excluding fish released alive) of ... CPUE in terms of number was same level between the years. This may be due to the catch of small fish ... SSRU B. Author(s): K. Taki, T. Iwami and M. Kiyota (Japan) Title: Revised reports on abundance and ...
Meeting Document : WG-FSA-11/14 : Auteur(s): K. Taki, T. Iwami and M. Kiyota (Japan)
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INTERACTIONS OF PATAGONIAN TOOTHFISH FISHERIES WITH KILLER AND SPERM WHALES IN CROZET EXCLUSIVE ECONOMIC ZONE: AN ASSESSMENT OF DEPREDATION LEVELS AND INSIGHTS ON POSSIBLE MITIGATION SOLUTIONS
. From 2003 to 2008, sperm whales alone, killer whales alone, and the two species co-occurring were ... year period we estimated a total loss of 1200 tons of Patagonian toothfish due to depredation which ... the largest part of this loss (70%) while sperm whales had a lower impact (30%). Photo-identification ... study (i) provides estimations of annual depredation levels on a 5-years period (2003-2008), (ii ...
Meeting Document : WG-IMAF-09/12 : Auteur(s): P. Tixier, N. Gasco, G. Duhamel and C. Guinet (France)
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Preliminary assessment of mackerel icefish Champsocephalus gunnari in Subarea 48.3 based on the 2017 groundfish survey
2018/19. Author(s): T. Earl Title: Preliminary assessment of mackerel icefish Champsocephalus gunnari ... survey catch rate data indicated a biomass of 91 531 tonnes (lower one sided 5th percentile: 47 424 ... tonnes) within Statistical Subarea 48.3. Projections for the 2017/18 and 2018/19 seasons applying the ...
Meeting Document : WG-FSA-17/47 : Auteur(s): T. Earl
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Annual report of research fishing operations at Division 58.4.4b in 2016/17 fishing season
data set, C2 and Observer data, was provided by the CCAMLR Secretariat on the 20th April 2018 (30 May ... , 2018 for September to November French cruise). In this paper, the data set during last fishing season ... as a progress toward research millstones. Author(s): Delegations of Japan and France Title: Annual ...
Meeting Document : WG-SAM-18/31 : Auteur(s): Delegations of Japan and France
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Discussion of satellite imagery applied to CAMLR regions
Author(s): R.E. Dennis (USA) Title: Discussion of satellite imagery applied to CAMLR regions ...
Meeting Document : WG-KRILL-90/30 : Auteur(s): R.E. Dennis (USA)