Результаты поиска

1. Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea

   (Euphausia superba) in the Scotia Sea, CCAMLR established a precautionary catch limit of 4 million tonnes and ... 3 0 20 40 60 80 100 Krill biomass density (g m-2) A 1 st an d ar d d ev ia te y ... = 0.7892Ln(x) - 2.5574 R2 = 0.4198 -3 -2 -1 0 1 2 3 0 20 40 60 80 100 Krill biomass density (g m-2 ... R2 = 0.1163 -3 -2 -1 0 1 2 3 0 20 40 60 80 100 Krill biomass density (g m-2) A 2 st an d ... ar d iz ed d ev ia te -3 -2 -1 0 1 2 3 0 20 40 60 80 100 Krill biomass density (g m-2 ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 81–97 : Автор(ы): Hewitt, R.P., G. Watters, P.N. Trathan, J.P. Croxall, M.E. Goebel, D. Ramm, K. Reid, W.Z. Trivelpiece and J.L. Watkins

2. Distribution of fish larvae at South Georgia: horizontal, vertical, and temporal distribution and early life history relevant to monitoring year-class strength and recruitment

   top 2 m layer at certain times of day. In both seasons some species showed daily vertical migration ... --'60, 60-100, 100-140, 140-180 and 180-220 m; each net was fished for 20 minutes at 2.5 knots with ... the upper 2 m though some had migrated down to 20-100 m, and by midnight most were at 60-100 m depth ... - Predawn Postdawn Presunset Postsunset 100 Figure 25 Electrona antarctica. Depth m 0 20 60 ... 0- 2 - 20 - 60 - 100 - 140- 180 - 220 - - 136 - Predawn Postdawn Midday Presunset ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 105-141 : Автор(ы): North, A.W.

3. Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions 58.4.1 and 58.4.2)

   de la baie Prydz. Des estimations de la biomasse moyenne ont Agnew et al. 72 été effectuées ... (gonads developing) to 4 (ripe) and 5 (spent). Catch and effort data were used to estimate toothfish ... , then the biomass for the local area being fished (BLOC) is given by: ˆ LOC c B = m - (4) Using ... ) showed the two methods produced area size estimates that dif- fer by approximately 20% overall (with ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 71–100 : Автор(ы): Agnew, D.J., C. Edwards, R. Hillary, R. Mitchell and L.J. López Abellán

4. Analysis of results from demersal fish surveys at South Georgia, undertaken by the United Kingdom and the USSR, January and February 1990

   ci z 70 60 50 40 30 20 10 0 f 0 1 2 3 4 5 6 7 Catch (tonnes) of C. gunnarl One ... - 20 - 10 - 0 ~ - - 0 1 2 3 4 5 6 7 Catch (tonnes) of C. qunnarl Two hauls not included:~ 14.4 and ... difficulty in the area to the southern part of the west shelf (squares 19 and 20). The reports of the two ... the net was estimated to vary from 20 to 22.m and the headline height from 5 to 6.5 m. All hauls ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 223–254 : Автор(ы): (Report of a Joint UK/USSR Workshop, 23 to 27 July 1990)

5. Potential nursery areas for fish in the Prydz Bay region

   all juvenile fish were caught in the top 50 m over the shelf, and more than 95% were Pleuragramma ... cO ......, ~ - Q) C) - ~ Q) 10 ~ - ~ - -51- - o I-r-----I I I I I o 20 40 60 BO 100 ... j CHANNICHTHYIOAE <120mm SL LENGTH FREQUENCY 15 10 5 o h-----' o 20 'la 60 Ba lOO 120 ... WG-FSA-9l/35 POTENTIAL NURSERY AREAS FOR FISH IN THE ... length of 20 m, and a mesh size of 15 cm in the wings and mouth area and 2 mm in the codend. Behaviour ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 369–380 : Автор(ы): Williams, R.

6. Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?

   conservatively estimated subarea biomass in up to 20% of years due to high variability in krill biomass indices ... catch limits exceed 9.3% of conservatively estimated subarea biomass in up to 20% of years due to high ... biomass (i.e. the total weight of reproductively mature individuals) after 20 years of fishing should ... probability of the spawning stock biomass falling to 20% of the reference level at any time should be no ... stock biomass falling below 75% and 20% of the reference level) and one of the ‘acceptable limits’ on ...

   Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 31–51 : Автор(ы): Hill, S.L., A. Atkinson, C. Darby, S. Fielding, B.A. Krafft, O.R. Godø, G. Skaret, P.N. Trathan and J.L. Watkins

7. New data on spawning, hatching and growth of Champsocephalus gunnari on the shelf of the Kerguelen Islands

   1971/72, yielded annual catches up to 30 000 tonnes in the first years of exploitation (Gerasimchuk ... taken both by bottom trawl (30' duration; 12 to 20 stations, depending on weather and bottom ... - - - ' , ' i " " " ' " " " ' I " " 0 10 20 30 Total length (cm) Figure 2: Quarterly LFDs for C. gunnari ... J l l l l l / , , , 3 I " " " " I " " . I ' I ' ' " ' E a 0 10 20 30 2. 0 Total length ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 21–34 : Автор(ы): Duhamel, G

8. Food and feeding of the mackerel icefish (Champsocephalus gunnari) around South Georgia in January/February 1991

   superba ~ Themisto gaudi. Mysidacea [%] 160 140 120 100 80 60 40 20 0 Month 11-111 11 ... , Imperial College, 8 Prince's Gardens, London SWllNA, UK 4 Sea Fisheries Institute, al. Zjednoczenia 1 ... according to a 5-point scale: 0- empty, 1 - 1/4 full, 2- 1/2 full, 3 - 3/4 full, 4- 4/4 full, stomach wall ... (1) or no food (0): Degree of Fullness n % 0 1306 33.7 1 839 21.6 2 777 20.0 3 803 20.7 4 152 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 15–23 : Автор(ы): Kock, K.-H., I. Everson, S. Campbell, G. Parkes, Z. Cielniaszek and J. Szlakowski

9. A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3

   -9 7 9 94 9. 35 18 9. 3 14 0. 07 4 19 W C is ne V er de 20 -M ar -9 7 30 ... cruise occurs from day 20 to day 60. Since this is prior to any FPV cruise, it is undetected and the ... .2 36 0. 49 2 7 S Is la C am ila 20 -F eb -9 7 12 -A pr -9 7 17 32 2. 72 ... . 05 34 0. 09 6 35 W In S un g 66 20 -M ar -9 7 09 -S ep -9 7 28 13 45 .8 ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Автор(ы): Agnew, D.J. and G.P. Kirkwood

10. Biogeographic patterns of benthic invertebrate megafauna on shelf areas within the Southern Ocean Atlantic sector

    parameters and biological interactions. Polar Biol., 20 (4): 229–247. Gutt, J. and A. Starmans. 2001 ... - elled into baskets. Up to 20 baskets of benthos were transferred to the sorting area for weighing ... (e.g. 60% bryozoan fragments, 30% ophiuroid arms, 10% organic matter) where possible. Algae were also ... - nal invertebrate assemblages can also be seen along these shelf habitats (Figure 4). The proportions ...

    Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 167–192 : Автор(ы): Lockhart, S.J. and C.D. Jones

Страницы