Résultats de la recherche
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Abundance, size and maturity of krill (Euphausia superba) in the krill fishing ground of Subarea 48.1 during the 1990/91 austral summer
were generated, suggesting that hydrodynamic convergence might be responsible for accumulation of krill ... in this zone. The total biomass over the survey area was estimated to be 1.59±0.45 million tonnes (95 ... neritic and nearshore zones. This indicates that slope frontal features may be important for the formation ... hydrodynamic convergence might be responsible for accumulation of kriU in this zone. The total biomass over ... the survey area was estimated to be 1.59±0.45 million tonnes (95% confidence limit), of which 1.22±O ... . This indicates that slope frontal features may be important for the formation of favourable conditions ... . Ha6JIIO.llaJIHCb qeTKHe HeO.llHOpO.llHOCTH B qHCJIeHHOCTH H nOJIOB03peJIOCTH KPHJI5I B npH6pe)l{HbIX B0.llaX H B ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 183–199 : Auteur(s): Ichii, T., H. Ishii and M. Naganobu
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Commercial krill fisheries in the Antarctic, 1973 to 1988
tonnes in 1981/82 before dropping to allow level in 1983/84 and stabilizing at about 400 000 tonnes ... but SUN, JPN SUN JPN 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 SPllT-YEAR Figure 2 ... 300 200 100 Area 88 Area 58 Area 48 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 ... SUN JPN 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 SPLIT YEAR Figure 4: Reported annual ... 400 300 200 100 All but SUN, JPN SUN JPN 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 229–281 : Auteur(s): Miller, D.G.M.
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines
tonnes and 739 ± 87 tonnes of Patagonian toothfish respectively were estimated to be depredated by the ... conservation issues. However, estimating the amount of resource depredated can be especially challenging when ... approach, which can only be implemented when a sufficient level of by-catch species occurs, provides ... addition to providing a methodology that could be used in other areas with depredation issues, these ... (tonnes) (tonnes) j 55.5 ± 7.0 83 13 4 977 066 575 ± 35 6 530 k 19.6 ± 6.2 101 9 14 138 056 739 ± 87 l ... Exclusive Economic Zones: an assessment of the depredation levels. CCAMLR Science, 14: 67–82. Sigler, M.F ... -economic, ecological and conservation issues. However, estimating the amount of resource depredated can be ... whales occurred separately, 575 ± 35 tonnes and 739 ± 87 tonnes of Patagonian toothfish respectively ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Auteur(s): Gasco, N., P. Tixier, G. Duhamel and C. Guinet
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The population of Mirounga leonina at stranger point (25 de Mayo – King George I.)
Stranger Point (25 de Mayo-King george I.) between 1980-87(excluding 1981). A decline in the population was ... observed in 1980-82 and 1987. The female component was mainly affected in 1 980-82 (r=-0.568) while the ...
Meeting Document : SC-CAMLR-VII/BG/33 : Auteur(s): Delegation of Argentina
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Fishery Report: Exploratory fishery for Dissostichus spp. in Subareas 88.1 and 88.2
was estimated as 80% B0 (95% CI 78–82%). The projected biomass trajectory assuming a future constant ... . Model B0 B2009 B2009 (%B0) 2007 Ross Sea base case 71 200 (59 570–87 900) - - Ross Sea base case 62 ... . Details of the fishery In 2005 the Working Group recommended that Subareas 88.1 and 88.2 be split into ... precautionary catch limit for Dissostichus spp. was 2 700 tonnes applied as follows: 352 tonnes total could be ...
Document : Site Section: Publications
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e-sc-xvii-a4.pdf
... ............................................................................ 150 B5 – Antarctic Petrel Population Size, Breeding Success ............................ 150 C3 ... Krill Survey in Area 48’ would first be discussed in a subgroup. Drs Hewitt, Holt and Watkins were ... 1996. The total reported catch of krill taken in 1996/97 was 83 919 tonnes. 2.2 The krill catches ... be submitted to the Secretariat. The Working Group reiterated the importance of fine-scale data and
application/pdf attached to:WG-EMM-98
Meeting Report : WG-EMM-98
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Fishery Report 2013: Exploratory fishery for Dissostichus spp. in Subareas 88.1 and 88.2
, -) Avro Chieftain 1 1 (54, -) Janas 1.1 1.2 (73, -) 1.1 (81, -) 1 (83, -) 1.1 (82 ... 2013 for Dissostichus spp. of 3 282 tonnes, of which 13% could be taken in SSRUs 881B, C, G; 74% in ... precautionary catch limit for Dissostichus spp. of 530 tonnes applied as follows: 124 tonnes total could be ... taken in SSRUs C–G and 406 tonnes could be taken in SSRU H. Three SSRUs (A, B and I) were closed to ...
Document : Site Section: Publications
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Demographic characteristics of the Adélie penguin population on Béchervaise Island after 12 years of study
/decline rates of the Adélie penguin population at Béchervaise Island were found to be more sensitive to ... s ur vi va l ( p x ) 4+ 34 9 29 0 83 .1 10 5+ 26 5 21 8 82 .3 9 ... at Béchervaise Island were found to be more sensitive to changes in annual survival rates ... , CCAMLR Clarke et al. 55 be obtained. In addition, up to 300 fl edgling chicks from the four study ... later found breeding on other islands within an 8 km radius of their natal colony were able to be ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 53–74 : Auteur(s): Clarke, J., L.M. Emmerson, A. Townsend and K.R. Kerry
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Analysis of krill trawling positions north of the South Shetland Islands (Antarctic Peninsula area), 1980/81–1999/2000
. Trawling positions seemed to be primarily governed by the distribution of larger mature krill, especially ... ./m2) 1980/81 24.1 161.4 1981 /82 25.3 324.9 1982/83 No data 276.7 1983/84 167.6 241.7 1984/85 ... in the season. Trawling positions seemed to be primarily governed by the distribution of larger ... other factors may also affect fishing position. It may be that fishing position is determined by a ... ). Since fishing vessels can select larger krill by knowing such patterns (Ichii, 2000), it may be ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 25–36 : Auteur(s): Kawaguchi, S. and K. Segawa
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e-sc-xiii-a7.pdf
... concern. This should be primarily directed at the development of an ecosystem approach to management (SC ... krill catch in the season 1993/94 was 82 600 tonnes and was concentrated in Statistical Area 48. The ... targets can now be discriminated on a fine scale, and estimates of target strength have been refined ... . The latter may be obtained from (i) dense aggregations by echo integration followed by trawl haul to
application/pdf attached to:WG-Joint-94
Meeting Report : WG-Joint-94