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Do krill and salps compete? Contrary evidence from the krill fisheries
/ Description: Salp by-catch and krill discolouration (039;green039; krill) caused by active feeding on ... , February 1982. Meeresforsch., 30: 220-239. Kawaguchi, S., T. Ichii and M. Naganobu. 1997. Catch per ... SALPS COMPETE? CONTRARY EVIDENCE FROM THE KRILL FISHERIES S. Kawaguchi, T. Ichii and M. Naganobu ... nonyocTposa, H C ~ O ~ ~ ~ O B ~ J I H C ~ nnn a ~ a n m a npanosa canbn H TaK ~ a s b r e a e ~ o r o s e ... ~OnX1.1TenbHOCTH H MHTeHCHBHOCTH UBeTeHHZ canbn, a TaKme BcTpevaeMocTM s e n e ~ o r o Kpans. B ynosax ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 205–216 : Автор(ы): Kawaguchi, S., T. Ichii, M. Naganobu and W.K. de la Mare
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Preliminary results of investigations of the Federal Republic of Germany on Notothenia rossii marmorata (Fischer, 1885) in January/February 1985
rebuild the stock around South Georgia might be successful. Although reported catches in recent years have ... consisted of age classes V – VIII. It seems doubtful if the conservation measures adopted in 1984 will ... ° • < 100 kg/30 min • < 250 kg/30 min • < 500 kg/30 min • < 1000 kg/ 30 min a > 1000 kg t 30 min S C O ... . Maturity in males is reached at a smaller size and about one year earlier than in females. - 40 ... further r analyses. Most of the specimens are then about S ye9rs ol
Age class VI seems to ... (years) age at sexual maturity (L 50 , A 50 ) in Notothenia russii ~outh ... Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 33-57 : Автор(ы): Kock, K.-H.
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Statistical power to detect changes in growth rates of Antarctic fur seal pups
(60°59.5039;S, 55°24.5039;W), the simulations suggest that following the protocol of the Standard ... changes (between years) in pup growth rates, the loss of power associated with obtaining weight samples on ... ------- ------- Females ------- mean mean Date n weight (kg) s.d. n weight (kg) s.d. 1988: 2 Jan 30 9.91 1.60 20 8.78 ... :=,8=0.1 0:=,8=0.1 + + 15 20 25 CHANGE IN 30 35 40 GROWTH 45 50 RATE Figure 2: If the ... cx={3=.l cx={3=.05 t t ALL CURVES: 4 weighing dates 28-day intervals 50 pups/day 15 20 25 30 ... for each year and as weighted averages of both years. Growth Rate Standard Error (kg/d) of Growth ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 399–409 : Автор(ы): Boveng, P., J.L. Bengtson and M.E. Goebel
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Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean
in recent years due to the increase in longline fisheries for toothfish (Dissostichus spp.) in the ... in particular M . carinatt~s) in the southern hemisphere is scarce. What little information is ... mid-1980s there was considerable confusion in the literature about how to distinguish the two ... (1980), which provided detailed information on the reproductive biology of M. carinatt~s, although ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 171–178 : Автор(ы): van Wijk, E.M., A.J. Constable, R. Williams and T. Lamb
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The error of the biomass estimate as a function of survey parameters and the statistics of a density field of krill aggregations
covered by a vessel between two successive echo pulses, is much less that the other one ( "i. ) which ... oonsiderations allow us to apply r9a~~a obtained to anisotropic fieldB in ~hich one can 3?ecifJ two th~t ... region under consideration: - 216 - /3 =.f S ,where S is region area, and'p is average surface ... (which can be assumed as known) introduced by the method of obtaining init1alinfo:rmation, one should ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 213-228 : Автор(ы): Kizner, Z.I.
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Location and intensity of the Soviet krill fishery in the Elephant Island area (South Shetland Islands), 1988/89
Soviet krill fishery off Elephant Island (Subarea 48.1) between 59°-62°S and 53°-57°W during the period ... low. In 1988/89 only one standard fishing vessel operated in the area over 40% of the time. The ... and 53°-54°15'W, the second one to the north of Seal Island between 600 -600 30'S and 55°-56°00'W and ... the third one located to the west of Elephant Island in the area between 61 °-61 °30'S and 56°-57°W ... oS and 55°-56°W. The second one was to the west 308 of Elephant Island between 61 °-61 °30'S ... vessels fishing was one to two (standard fishing units) with a maximum of seven vessels during one five ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 305–335 : Автор(ы): Sushin, V.A. and A.S. Myskov
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Homogeneity of body length composition of Antarctic krill within the commercial zone
that sampling from one part of the haul provides a reasonable estimate of length composition in the ... season. In 58 of these hauls, two krilllength composition samples were taken from each haul, one sample ... x=47.2 20 Data set 2* 30 40 50 Length (mm) 60 15 10 5 n=182 x=48.7 n=187 x ... =163 x=51.7 20 30 40 50 60 Length (mm) Figure 2: Comparisons of kriU length compositions for ... " 10 CD x=38.9 x=37.5 l0- w.. 5 0 20 30 4D 50 60 Data set 53* Data set 49** ..-.. 15 ~ n ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 17–28 : Автор(ы): Ichii, T.
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Observations on haul-out patterns and trends in the breeding populations of southern elephant seal at Península Valdés (Patagonia) and Stranger Point (25 de Mayo - King George I.)
de Mayo-King George I. were studied during the breeding season from 1979 to 1987. Two main objectives ... of r between these two years is 0.05, similar to the one estimated for this population by McCann ... (van Aarde, 1980). In this paper we present information on the last seven years in two breeding ... two different places. One of them was located at 25 de Mayo I. (King George) (1980-1986 except for ... (patagonia) and 25 de Mayo-King George I. were studied during the breeding season from 1979 to 1987. Two ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 453-463 : Автор(ы): Vergani, D.F., M.N. Lewis and Z.B. Stanganelli
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Characteristics of krill swarms from Prydz Bay
1800 ~ I- l- I- I- 50 40 30 20 10 1002 c 80 !2: ~ 60 40 20 Figure 2: Log ... ,:" •• .. .,:-. .- -10 L-~I __ -L __ -L __ ~I __ -L __ ~ __ ~~ o 10 20 30 40 50 60 70 80 distance along transect (km ... rate was about one every second until 1808 hours (approximately 30 km from the start) when it dropped ... ) 60 50 40 30 20 10 1n (between swarm distance) Figure 3(b): Log transformed between ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 177–189 : Автор(ы): Agnew, D.J. and I.R. Higginbottom
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Growth and natural mortality of Patagonian rockcod (Patagonotothen guntheri shagensis) from Shag Rocks shelf
Patagonian rockcod were found to be 2.5 years and 12.6 cm. File: 09-Shilbanov.pdf ... for Patagonian rockcod (Patagonotothen guntheri shagensis) were calculated by using age and length ... of natural mortality M=0.8 was used in calculations and the optimal age and length for harvesting ... years The analysis of the age composition curve shows that not all two year old fish were represented ... 30 g weight and age of 2 to 3 years. The sex ratio of fish is actually the same in all size classes ... , % 60 -40 20 n=1470 2. 3 Lt 5 6 Age, years Figure 2: Age composition of P.g. shagensis in ... of 2 to 5 years are most abundant. Sexual maturity is attained by fish at 11 to 13 cm length, 20 to ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 111–121 : Автор(ы): Shlibanov, V.I.
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