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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 of albatross and petrel distribution within the CCAMLR Convention Area: results from the Global Procellariiform Tracking Database

    for the estimation of distribution during the breeding season for all 20 albatross, petrel and shearwater species ... boundaries are 60ºS and which contain no breeding sites, contain a low pro- portion of albatross and petrel ... Shelf for top predator species breeding at South Georgia. Aquatic Conservation, 12 (1): 101–118 ... ). Albatross Biology and Conservation. Surrey Beatty, Chipping Norton: 20–45. González-Solís, J., J.P ...

    Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 143–174 : Author(s): BirdLife International (prepared by C. Small and F. Taylor)

  2. Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground

    17 6 20 02 1 0 8 54 81 14 4 20 03 0 1 4 34 12 4 72 ... 23 5 20 04 1 1 3 10 72 81 10 9 23 6 20 05 0 0 0 0 0 18 ... , M L –5925 –5930 –5935 –5940 L M 43 Estimation of M for D. eleginoides at HIMI 0 20 40 60 0 20 ... 40 60 5 10 15 20 1998 1999 5 10 15 20 2000 2001 2002 2003 2004 0 20 40 60 2005 0 20 40 ...

    Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 29–45 : Author(s): Candy, S.G., D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins

  3. A compilation of parameters for ecosystem dynamics models of the Scotia Sea – Antarctic Peninsula region

    , 2005). A subset of output was used. This covered the model domain 45º–75ºS 100º–20ºW and the upper ... . Butterworth. 2001. Estimates of abundance south of 60°S for cetacean spe- cies sighted frequently on the 1978 ...

    Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 1–25 : Author(s): Hill, S.L., K. Reid, S.E. Thorpe, J. Hinke and G.M. Watters

  4. The role of fish as predators of krill (Euphausia superba) and other pelagic resources in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)

    to be considered when evaluating patterns that have emerged in Southern Ocean ecosystems in the course of the 20 ... species are important predators of krill (C. gunnari) and fish (D. mawsoni) in turn form key prey for top ... emerged in Southern Ocean ecosystems in the course of the 20th century. As a first step towards ... (C. gunnari) and fish (D. mawsoni) in turn form key prey for top predators in each region. ... in Southern Ocean ecosystems in the course of the 20th century. As a first step towards a modelling approach ... (C. gunnari) and fish (D. mawsoni) in turn form key prey for top predators in each region. 117 Fish ... Krill Syn- optic Survey of Area 48 (CCAMLR-2000 Survey) (Hewitt et al., 2004) was 60 000 000 tonnes ... another 60 years be- fore large-scale commercial exploitation of these fish resources commenced ...

    Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 115–169 : Author(s): Kock, K.-H., E. Barrera-Oro, M. Belchier, M.A. Collins, G. Duhamel, S. Hanchet, L. Pshenichnov, D. Welsford and R. Williams

  5. Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean.

    .4 0. 0 0. 0 0. 0 (3 1 D ec –2 3 Fe b) M al e (2 88 ) 60 .1 39 .9 0. 0 0. 0 0. 0 20 07 /0 8 Fe ... e (2 56 ) 91 .0 9. 0 0. 0 0. 0 0. 0 20 08 /0 9 Fe m al e (3 18 ) 27 .4 72 ... eleginoides D issostichus m aw soni 0 20 40 60 80 100 120 40 60 80 100 120 140 160 180 0 10 20 30 40 ... 0 10 20 30 40 50 60 40 60 80 100 120 140 160 0 20 40 60 80 100 120 140 80 90 100 110 120 ...

    Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 145–153 : Author(s): Taki, K., M. Kiyota, T. Ichii and T. Iwami

  6. A balanced model of the food web of the Ross Sea, Antarctica

    that the model has greater taxonomic resolution towards the top of the food web than the base. A survey ... bacteria (61–72%), and ice protozoa (24–54%), components of the model. Trophic levels are in close ... web which means that the model has greater taxonomic resolution towards the top of the food web than ... the microzooplankton (34–47%), ice bacteria (61–72%), and ice protozoa (24–54%), components ... that the model has greater taxonomic resolution towards the top of the food web than the base. A survey ... %), ice bacteria (61–72%), and ice protozoa (24–54%), components of the model. Trophic levels ... diverses composantes du modèle : le micro-zooplancton (34–47%), les bactéries des glaces (61–72%) et les ... микрозоопланктон (34–47%), ледовые бактерии (61–72%) и ледовые 3 A balanced model of the food web of the Ross ...

    Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 1–31 : Author(s): Pinkerton, M.H., J.M. Bradford-Grieve and S.M. Hanchet

  7. Marine mammals and demersal longline fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of depredation levels

    3 8 3 53 2 27 1 19 6. 6 (1 60 .7 ) 39 0 3 11 0 92 4 20 9. 6 (1 44 .7 ) 35 4 1 17 ... 1 0. 22 8 0. 08 2 7 1 71 6 93 6 20 5. 2 (9 7. 3) 15 3 92 3 60 9 19 ... in the Crozet EEZ per fi shing sector and marine mammal species. 0% 10% 20% 30% 40% 50% 60% 70% 80% 90 ... between 2003 and 2005. 0 20 40 60 80 100 120 2003 2004 2005 C um ul at ed e ff ec ti ve ...

    Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 67–82 : Author(s): Roche, C., C. Guinet, N. Gasco and G. Duhamel

  8. Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle

    / 5– 7/ 6/ 19 90 L en gt h ra ng e (m m ) 60 –1 20 60 –1 00 60 –1 10 60 –1 00 M od al le ng th ... , % o f f is h of d om in an t l en gt h 50 m m 60 m m 33 % 48 % 50 m m 60 m m 62 % 28 % 50 ... m m 60 m m 38 % 45 % 50 m m 77 % N um be r of in d iv id ua ls 56 3 24 0 41 ... 8 99 30 / 5– 29 / 6/ 19 86 L en gt h ra ng e (m m ) 60 –1 30 80 –1 30 60 –1 40 70 ...

    Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Author(s): Frolkina, Zh.A

  9. Joinville–D’Urville Islands (Subarea 48.1) – a former fishing ground for the spiny icefish (Chaenodraco wilsoni), at the tip of the Antarctic Peninsula – revisited

    compositions from several fishing nations revealed that the fishery targeted primarily fish 25–35 cm long ... primarily fish 25–35 cm long. The fish fauna at the tip of the Antarctic Peninsula represents ... –1981 Jan–Mar 936 20–35 W = 0.014618 x L2.771687 Maturity stage 1 (Cielniaszek, 1981) 1979–1981 Jan ... –Mar 505 20–35 W = 0.017585 x L2.742828 Maturity stage 2–3 (Cielniaszek, 1981) 2002 Feb 45 16–35 ... Shetlands. Vopr. Ikthiol., 20 (4): 644–655. Translated as J. Ichthyol., 20 (4): 50–60. -63° 0' -62°30 ... – D’Urville Islands in January 1978 to May 1979. 0 5 10 15 20 25 30 0 5 10 15 20 25 30 35 Length ...

    Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 1–20 : Author(s): Kock, K.-H., L. Pshenichnov, C.D. Jones, K. Shust, K.E. Skora and Zh.A. Frolkina

  10. Is the attempt to estimate the biomass of Antarctic fish from a multi-species survey appropriate for all targeted species? Notothenia rossii in the Atlantic Ocean sector – revisited

    ' –55°0' –54°30' –60°45' –60°50' –60°55' –61°00' –61°05' –61°10' –61°15' –61°20 ... ' –56°0' –55°30' –55°0' –54°30' –60°50' –61°00' –61°10' –61°20 ... . Despite the closure of the fi shery almost 20 years ago, none of these multi-species surveys has ... the net was on the bottom). Hauls of less than 20 min duration were disregarded. All survey data ...

    Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 141–153 : Author(s): Kock, K.-H., M. Belchier and C.D. Jones

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