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  • 资源配置效率: 供应链优化:头部平台通过规模效应将采购成本降低35%,品控响应速度缩短至4小时(中小企业需72小时)。 流量分配不均:TOP5主播占据60%的流量,中小商家获客成本高达20元
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  • 资源配置效率: 供应链优化:头部平台通过规模效应将采购成本降低35%,品控响应速度缩短至4小时(中小企业需72小时)。 流量分配不均:TOP5主播占据60%的流量,中小商家获客成本高达20元
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  1. Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the number of concentrations and analytical justification for search data

    Dalniy 4. Mys Tihiy 62.9°S - 67.1°S 09.01.81 - 19.03.81 35.3°W - 55.7°W 53. 60 S - 61.3 ... (8-9) 1 290.4 50" 40' 20" o' 20' 40' 10' 30' 30' 10" 50" 60" 60' 70' 10' 58.4.4 -.' eo' 58.4.2 ... - "I" ~ • #[!] ~~ .. • ~ • • • • • ··i· : . 67.0 - • t .. t: • • 67.5 [!] Catch < 1000 kg • Catch >= 1000 kg 68.0 I [ 60 62 64 66 68 70 72 ... !I •• l!I • 60 - • ,fJl'I 62 30 35 40 45 50 55 60 East Spatial location of hauls by RV Odyssey. Hauls ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 283–322 : Author(s): Mangel, M.

  2. Distribution characteristics of krill aggregations in the fishing ground off Coronation Island in the 1989/90 season

    "-~ 1-- \ . ~ ... -'.'._- ..... ~ ... ...... ~ ... i ----- 2 · .. . . . · · ...:..., t ..... . -", . J . . .J i'~.:,- r .... . , ---'--3 15 1 5 45°·W 950 S 60.0 i 0' 20' 50' 40' 50' Figure 1: Fishing grounds ... IT: 4 to 18 December Period lIT: 19 December to 7 January. 63 ,-... 20 40 60 El SO ... '-" .£! 100 -P Pi ~ 120 ,-.,. 140 20 40 60 S .......,80 .£! t.. 100 20 40 60 1:30 10 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 49–73 : Author(s): Kasatkina, S.M. and V.I. Latogursky

  3. A hybrid approach to acoustic classification and length estimation of krill

    of size distribution. During the 1997/98 survey, 32 of 35 60-minute hauls contained euphausiids (Figure ... f k f a a f k a Δ . 35 Acoustic classifi cation and length estimation of krill The largest frequency ratios ... and their equivalent radius can be estimated confi dently in the interval (amin – amax) where 100|δ| < 20 ... to 38 kHz is highly ‘tuned’ (error < 20%) to measur- ing sizes within the class from a = 1.6 to 6.0 mm ...

    Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 33–58 : Author(s): Azzali, M., I. Leonori and G. Lanciani

  4. Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3

    of krill over a 20-year harvesting period from falling below 60% of its average unexploited level; subject ... that TAC reductions may prove necessary during the 20-year period considered. Simulation tests, including ... II is proposed: the primary objective is to prevent the expected lowest biomass of krill over a 20 ... -year harvesting period from falling below 60% of its average unexploited level; subject ... of krill over a 20-year harvesting period from falling below 60% of its average unexploited level; subject ... faible, pour une periode d'exploitation de 20 ans, de tomber au dessous de 60% de son niveau moyen non ... to prevent the expected lowest biomass of kriU over a 20-year harvesting period from falling below 60 ... ) 0.64 (0.09) 0.019 (0.053) 15 5.15 (1.06) 12.24 (4.49) 0.76 (0.22) 0.60 (0.10) 0.024 (0.057) 20 7.05 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 189–219 : Author(s): Butterworth, D.S.

  5. Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies

    a lower impact (>25%). Photo-identification data revealed 35 killer whales belonging to four different ... data revealed 35 killer whales belonging to four different pods were involved in 81.3 ... on D. eleginoides fisheries at the Crozet Islands 0 10 20 30 40 50 60 70 80 90 100 2003/04 2004/05 2005 ... between 2003 and 2008. 0 10 20 30 40 50 60 70 80 A B C D E F G Fishing vessel In te ra ct io ... a lower impact (>25%). Photo-identification data revealed 35 killer whales belonging to four different ... -identification ont révélé que 81,3% des interactions concernaient 35 orques appartenant à quatre troupeaux ...

    Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Author(s): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet

  6. Demographic characteristics of the Adélie penguin population on Béchervaise Island after 12 years of study

    35 75 18 13 72 7 0. 40 19 96 / 97 38 42 18 73 17 50 0. 93 19 97 / 98 ... 37 31 18 36 99 0 0. 54 20 00 / 01 35 98 19 39 16 97 0. 87 20 01 / 02 ... fait l’objet d’une étude dans les années 60 et 70 (Ainley et al., 1983), et examinés par rapport ... collected at Béchervaise Island (67°35’S 62°49’E) near Mawson station during each of the breeding seasons ...

    Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 53–74 : Author(s): Clarke, J., L.M. Emmerson, A. Townsend and K.R. Kerry

  7. An impact assessment framework for bottom fishing methods in the CAMLR Convention Area

    5 : L at er al m ov em en t 3 61 5. 2 0. 2 72 3. 0 24 0 00 17 .4 4 35 1 0. 40 ... °E 160° E 170°E 180° 170°W 160°W 150 80° S 75° S 70° S 65° S 60° S 600-1800 200-600 60-200 20 ... -60 7-20 2-7 NZ fishing effort ('000s hooks) NZ fishing effort ('000s hooks) NZ fishing effort ... ) 1° x 1° area of highest cumulative NZ fishing effort 600–1800 200–600 60–200 20–60 7–20 2–7 150 °E 160 ...

    Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 195–210 : Author(s): Sharp, B.R., S.J. Parker and N. Smith

  8. Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed with mitochondrial and intron DNA markers

    /4 AGTATAAGTGACTTCCAATCAC 50 72 2 Cronin et al., 1993 TTAGAATCACAATCTAATGTTTT COI AGTATAAGCGTCTGGGTAGTC 60 72 ... ATAGTGGGGTATCTAATCCCAGTT Palumbi et al., 1991 introns RP1 TGGCCTCTTCCTTTGGCCGTC 60 72 2 Chow and Hazama, 1998 ... AACTCGTCTGGCTTTTCGCC RP2 AGCGCCAAAATAGTGAAGCC 60 72 2 Chow and Hazama, 1998 GCCTTCAGGTCAGAGTTCAT CK6 ... latitudes south of the Antarctic Convergence around 60°S, while D. eleginoides ranges from about 50 ...

    Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 43–51 : Author(s): Smith, P.J. and P.M. Gaffney

  9. The Soviet krill fishery in the Atlantic Sector of the Antarctic from 1977 to 1991: fishing effort distribution and interannual patterns

    3 00 6 3 63 4 19 90 37 4 85 6 35 0 21 3 27 3 40 9 27 2 75 1 4 20 9 19 91 ... .2 B M R T A 0 7 61 15 3 20 6 0 22 80 36 17 4 21 4 88 0 70 35 1 14 ... 8 20 1 89 0 19 79 38 6 25 6 32 1 34 4 34 9 82 5 32 1 19 6 4 51 6 19 80 ... 47 7 18 6 35 6 97 8 44 0 51 6 35 6 75 2 3 89 9 19 81 44 8 13 2 28 8 86 ...

    Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 1–13 : Author(s): Litvinov, F.F., V.A. Sushin, G.A. Chernega and O.A. Berezhinsky

  10. Results of fish larvae sampling by means of fine-meshed samplers attached to a bottom trawl

    to a bottom trawl Abstract / Description:  Fine-meshed samplers were attached to the top of a bottom trawl ... vulnerable to damage. The nets were more effective in sampling when attached to the top of the trawl belly ... Nototheniidae, and among them Nototheniops larseni (9.3-20.5 mm). The abundance of postlarval fish was highest ... Fine-meshed samplers were attached to the top of a bottom trawl in order to provide information ... 4 6 50 760 4 8 20 60 na - data not available 75 Table 2: Abundance indices (numbers of larvae ... * 2 4P * 1 0 5P 0 0 30 6 * 2 * 31 0 0 2 6 32 3 0 0 0 33 0 2 0 0 34 2 0 2 2 35 50 66 60 38 36 ... 230 280 32 250 170 170 210 33 30 60 220 480 34 130 580 420 970 35 310 na 420 170 36 470 480 600 ... 250 123 190 * 220 70 124 50 * 320 320 127 50 * 680 80 130 20 * 60 * * damaged sampler 77 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 69-86 : Author(s): Ślósarczyk, W. and I. Wójcik

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