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Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey
latter travelled a distance of 10 metres away from the trawl in 8 seconds (Everson, 1986). Since krill ... (metres) 4 4 4 4 Mesh size in trawl bag (mm) 6.5 10 12 12 266 Table 2: Mean statistical data on ... swann depth (metres) 42 29 41 24 29 25 30 21 cr, swann depth 13 20 13 8 10 14 16 8 Mean swann ... 47 59 30 23 20 29 17 cr, mean swann length (metres) 15 16 19 7 10 7 20 4 Swann density field in ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Автор(ы): Kasatkina, S.M.
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Notothenia (P.) guntheri stock status and TAC estimation in the area of Shag Rocks (Subarea 48.3)
O-Ba 10. reOprH5I OCo6H 3Toro BH,l(a 3a 20 JIeT perYJI5IpHO npoBO,l(HMbIX 3,l(eCb COBeTCKHX H ... EaJIylIlKHH B. A., llepMHTHH 10. E. K03JIOB A.H., IDycT K.B IDyCT K. B. Norman J. R. a HaXO)l ... 0,34 030 065 1,07 1,51 HTOrO 226.50 228.00 213.50 170~30_ 12420 ._116 10 .... _14.3 60-----.1..46]0 ... 1,589 6 0900 10000 0066 10283 10 37 2275 1509 04005 006 422 o 280 If TOrO 33450 955780 14380 1180 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 53-68 : Автор(ы): Shust, K. and R. Borodin
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Measurements of differences in the target strength of Antarctic krill (Euphausia superba) swarms at 38 kHz and 120 kHz
, diferencia que se considero demasiado grande para poder interpretarla como un error experimental, y por 10 ... aggregating and distribution patterns in these two regions. Data were collected between 7 and 10 March from ... ~ Z 30 « o "" ~ ~ 20 Z 10 .' . -I, - A9880 /' 1\ --- A9885 1\ •••• A9891 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 75–86 : Автор(ы): Hampton, I.
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Refinements to the strategy for managing depleted fish stocks based on CCAMLR objectives
recuperacion de la poblacion dentro de de dos 0 tres decadas y, por 10 tanto, se necesitan normas de ... = 10 years Table 2: Fishing mortality rates consistent with each of the three criteria for managing ... LI ______ -L ____ ~-L ______ -L ______ -L ______ ~ ______ J_ ______ J_ ____ ~ o 5 10 15 Year 20 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 467–475 : Автор(ы): de la Mare, W.K. and A. Constable
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A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia
en una estacion de arrastre en particular. Por 10 tanto, cuando haya un limitado numero de ... JR28 RMT FNET MNET VKSS LHPR RMT25 10 1 0 6 0 0 20 1 0 0 0 0 1 0 5 0 0 0 0 9 1 0 0 5 18 2 1 0 ... 2 0 10 2 1 0 0 0 19 4 0 0 0 0 Total 17 21 6 15 23 13 23 Watkins MATERIALS AND ... densities in the range of 10 to 100 krill m-'. The acoustically weighted length-density distribution ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Автор(ы): Watkins, J.L
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Protecting young fish and spawning aggregations of Champsocephalus gunnari in Subarea 48.3 (South Georgia): a review
pesca durante el periodo del 10 de marzo a1 31 de mayo. Keywords: South Georgia, Subarea 48.3 ... percentage of the total catch (e.g. 10%). It is not, however, illegal to process and land undersized fish ... concluded: 'assuming that the actual size of twine mesh in commercially used codends is on average 10 ... vessels must move at least 5 away if more than 10% of the catch (by number) of C. gunnari is composed ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 75–86 : Автор(ы): Parkes, G.B
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Attribtuion of acoustic echoes to squid in the south Atlantic
MVBS (MVBS at Goss et al. -10 -7 -4 -1 2 5 8 11 14 17 20 Delta MVBS in dB -10 -7 -4 -1 2 5 8 ... 23.67 20* 4 - 16 4 - 9 10 - 15 catch. In spite of the long duration of the haul in which M ... likely if they had been in the trawl for 10 hours. A possible source of the marks may be the myctophid ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 259–271 : Автор(ы): Goss, C., P. Rodhouse, J.L. Watkins and A.S. Brierley
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Feeding and food intake of Electrona carlsbergi (Tåning, 1932) Myctophidae
collected in February-March 1989 in the area to the south of the Antarctic Convergence between 10 and 380 W ... analysis. Fish length was measured to the nearest 1 mm, and the weights to the nearest 10 mg. Sex and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 411–416 : Автор(ы): Gerasimova, O.V.
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Analysis of the diet of Champsocephalus gunnari at South Georgia in late summer from 1994 to 1997, Dr Eduardo L. Holmberg surveys
CeneKTMBHOCTn npa sb16ope pa3na~~b1x O~T,CKTOB nmamx. Hanngne Kpmx B nogpafio~e 48.3 661~10 HHSKEM B 1994 r ... a sample size of 25 ensures CVs of at least 10%. We established a maximum n of 50, which yields ... 10-55 In the 1994 survey, a set of sampling sites was selected along random tracks with the aim of ... (Figure 6). The historical range for the period December to February is 10 to 20% (Kozlov et al., 1988 ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 103–123 : Автор(ы): Barrera-Oro, E., R. Casaux and E. Marschoff
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Joint Polish/American hydroacoustic survey of Elephant Island and the vicinity of King George Island, 1988
is here defined as: Sy = -75.81 + 10 log T 1.0 where Sy is mean volume back-scattering-strength ... unit of surface area was calculated using: cr = 10 0.1(Sy + 10 log R-TS) 1 .1 where (f is mean ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 357–377 : Автор(ы): Macaulay, M.C.
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