Resultados de la búsqueda
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First increment validation of Patagonian toothfish (Dissostichus eleginoides) from Heard Island
one opaque and one translucent increment is formed each year on the sectioned face of sagittal ... Abstract: Patagonian toothfish, (Dissostichus eleginoides) have traditionally been aged assuming ... routinely ageing D. eleginoides, resulting in differences of ageing data presented. One area that was ... previously aged samples from the Heard and Macquarie Islands fisheries. These data suggest that the protocol ...
Meeting Document : WG-FSA-05/61 : Autor(es): K. Krusic-Golub, C. Green and R. Williams (Australia)
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Maximum entropy reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia, 1996–2000
Entropy (MaxEnt) reconstructions of krill distribution and estimates of mean krill density within two ... survey boxes (dimensions 80 km × 100 km) north of South Georgia. The reconstructions were generated from ... 80 km transects in each box, providing about 1 600 density estimates per box. The MaxEnt technique ... krill distribution and estimates of mean krill density within two survey boxes (dimensions 80 km × 100 ... ( 19 97 ), JR 28 ( 19 98 ), JR 38 ( 19 99 ) an d A T L D ( 20 00 ). A xe s ar e ... been determined at approximately 0.5 km intervals along each of the ten 80 km transects in each box ... rectangles d’étude (dimensions : 80 km × 100 km) au nord de la Géorgie du Sud. Les reconstructions sont ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 91–100 : Autor(es): Wafy, M.H., A.S. Brierley, S.F. Gull and J.L. Watkins
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Fishery Report: Exploratory fishery for Dissostichus spp. in Subarea 48.6
under way by one vessel in the SSRUs north of 60°S. Table 1(a): Catch history for Dissostichus spp ... medium for two vessels and high for one vessel which fished in 2009/10 (see Weighted Frequency ... tonnes south of 60°S. Carry forward Season 1 December to 30 November Same period By-catch Regulated ... setting. Carry forward Observers At least two (2) scientific observers, one of whom shall be appointed ...
Document : Site Section: Publications
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Volume 6: CCAMLR. 1994. Statistical Bulletin, Vol. 6 (1984–1993). CCAMLR, Hobart, Australia.
SECTOfl Figure 2: 40" 30" - _==--:=~=':)S;II!iI(- _. Soulh WI:5s1 AIIi..lfllic: OCIJun 41.3.3 20 ... . . . . . . . . . . . . . . . . . . . . . . 80 Repartition a echelle precise d'Euphausia sllperba, divisions 58.4.1 & 2 .. . . . . . . . . . 90 ... ) ••. ' ... (xviii) 73 74 74 74 75 75 76 79 ." 80' 90 :95 101 106 BBe,aeHHe - TOM meCTOH ... _..... ...c=_ ...." 90' E ·10' S !lU ·IU 6 ull '" Wc:.h.:fll h tdlill1 OCl:iJlI .0 (/ ~ 0 ...
Document : Site Section: Publications
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Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements
conducted regularly in some areas for nearly 20 years, and there is now a good appreciation of the range ... abundance has been subject to considerable research over the last 20 years (Greene et al., 1998), and it ... able to narrow the estimates of production from 75- 1 350 million tonnes per year (a factor of 20) to ... CIRCUMPOLAR ABUNDANCE OF ANTARCTIC KRILL BASED ON RECENT ACOUSTIC DENSITY MEASUREMENTS S. Nicol, A.J ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Autor(es): Nicol, S., A.J. Constable and T. Pauly
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2006/07
management of the SSRUs within the two subareas was changed for the 2006 season as part of a 3-year ... Shelf in 1999 and 2001), these year classes are not seen in large numbers in later years in the fishery ... years in Subarea 88.1 and for five years in Subarea 88.2. This report summarises the large amount of ... SSRUs in the two subareas except for 881D and 882C have now been fished. The 2007 D. mawsoni catch was ...
Meeting Document : WG-FSA-07/28 : Autor(es): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)
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Fishery Report: Dissostichus eleginoides Crozet Island inside the French EEZ (Subarea 58.6)
the following year, the season used in this report is the CCAMLR season (1 December to 30 November ... of the following year). 40°E 45°E 50°E 55°E 60°E 50°S 48°S 46°S 44°S B C D ... . eleginoides caught by longline range from 40 to 130 cm in length, with a mode at approximately 70–80 cm at ... the beginning of the series, and 55–80 cm in recent seasons. TOP586 FRA EEZ 3 Figure 2 ...
Document : Site Section: Publications
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Measurements of sound-speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru
-density contrasts between the animal and the surrounding water are required. Sound-speed and mass-density ... target strength and its directivity of krill were calculated using the stochastic DWBA model. Author(s ...
Meeting Document : WG-EMM-08/56 Rev. 1 : Autor(es): Y. Takao, H. Yasuma, R. Matsukura, K. Amakasu and M. Naganobu (Japan)
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Updated description of Patagonian toothfish (Dissostichus eleginoides) tagging and ageing programs in Division 58.5.2, 1997–2015
previous maximum age estimate of 42 years. These data have been used to develop age length keys and a ... expanded to include 6 vessels, 5 operating exclusively longline, and one dual purpose longliner/trawler. To ... consistently above 80% since 2012. Vessels have also explored new fishing grounds over recent seasons ... the 2009/10-2013/14 seasons. These samples have detected fish as old as 51 years, increasing the ...
Meeting Document : WG-FSA-15/55 : Autor(es): D.C. Welsford, B. Farmer, T.D. Lamb, C. Péron, E. Woodcock and P.E. Ziegler (Australia)
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Spatial distribution and swarm characteristics of Antarctic krill around the South Shetland Islands
markedly higher than the other two years. Meanwhile, much more swarms (1055) were detected in February 2018 ... 2013, March 2015, January 2016 and February 2018 around South Shetland Islands. The swarm ... as swarms in a patchy fashion and the mean krill densities in December 2013 and February 2018 were ... than the other three years. The results also indicated that more krill swarms located at deeper water ...
Meeting Document : WG-EMM-18/42 : Autor(es): X. Yu, X. Wang and X. Zhao