Search results
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Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the number of concentrations and analytical justification for search data
(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 ... 4.-----------------~--------------------~ 3 2 o 5 10 15 20 30 40 50 60 70 Concentration Radius (nml) Figure 16: Histogram of the radii ... conclusions precises. Pe3lOMe B HacTo.sn~eH pa60Te MHOIO nOKa3aHO, KaKHM 06pa30M ,llaHHble, KOTopble ... perYJI5IpHO co6HpalOTc5I nOHCKOBbIMH cY,llaMH, MorYT 6bITb HCnOJIb30BaHbI ,llJI5I Ol.(eHKH KOJIHl-leCTBa ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 283–322 : Author(s): Mangel, M.
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Intra-annual variability in the density of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ estimates of krill density
) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ... all three years, was detected. Krill densities in winter were predominantly low (mean = 18.7 ... g m –2, SD = 24.3), but had risen substantially by summer in each year (mean = 89.5 g m –2, SD = 64.2 ... to explore whether high-frequency temporal variation (i.e. within-year) could have led to the perceived ... , CCAMLR Saunders et al. 30 summer) in the light of repeated observations of within-year changes ... 30 0 19 6 30 –1 82 × 13 00 20 3 20 –1 89 × 2 19 / 02 –2 8/ 04 / 03 30 0 19 8 32 –1 84 ... 7 21 –2 13 × 5 14 / 01 –2 4/ 03 / 04 30 0 19 8 32 –1 84 × 13 00 22 6 20 –2 12 × 6 26 ... on 20/11/04 44.2 (157) –42.76 JR116 06/01–10/01/05 06/01–10/01/05 57.1 (144) –44.92 JR121 30/03–02/04 ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 27–41 : Author(s): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone
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Trawl bag selectivity in the Champsocephalus gunnari fishery
years demonstrates close similarity. A significant increase in modal length (up to 34-35 cm) as well ... with results from previous years demonstrates close similarity. A significant increase in modal length (up ... 5 316 11 20.41 23 1000 48 6 317 " 22.26 52 1500 30 7 319 18.06 06.35 40 000 32 8 320 " 08.25 52 1900 ... Number of Fish Caught of Fish In Codend In Cover A B C 17 - 1 18 - 7 19 - 16 20 30 38 21 - 20 ... 22 - 20 23 - 24 24 38 64 25 534 373 26 1436 866 27 2984 1430 28 5927 1619 29 5071 1071 30 ... was 3.10 for a mesh size of 80 mm. Comparison of these results with results from previous years ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 295–312 : Author(s): Bidenko, V.G. and I.G. Istomin
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Biogeographic patterns of benthic invertebrate megafauna on shelf areas within the Southern Ocean Atlantic sector
was just 3% coverage (Teixidó et al., 2004) and an average diameter of approximately 20–30 cm (Gutt ... habitats into zoogeographical provinces date back to the early 20th century (Koehler, 1912; Hedgpeth ... m respectively. The target time for a gear deployment was 30 min on the bottom. Geographic coordinates were ... was 30 min on the bottom. Time on the bottom was measured by means of a time-depth recorder mounted ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 167–192 : Author(s): Lockhart, S.J. and C.D. Jones
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Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea
not been validated. The maximum estimated age was 14 years, but this should be regarded as a conservative ... L t is the pelvic length (PL) in centimetres at age t years. Applying this growth curve to the estimated lengths ... of 6–7 years for males and 8–11 years for females. These estimates are near the middle to upper end ... not been validated. The maximum estimated age was 14 years, but this should be regarded as a conservative ... validated. The maximum estimated age was 14 years, but this should be regarded as a conservative estimate ... (PL) in centimetres at age t years. Applying this growth curve to the estimated lengths at maturity ... for males and females (64 and 66–69 cm PL respectively) produced estimated ages at maturity of 6–7 years ... for males and 8–11 years for females. These estimates are near the middle to upper end of the range of ages ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 183–194 : Author(s): Francis, M.P. and C. Ó Maolagáin
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Supplementary data on exploited stocks in Division 58.5.1 (Kerguelen)
Notothenia squamifrons 6bIJI OqeHb HH3KHM.CO BpeMeHH YCTaHOBJIeHH5.I ;;\KOHOMHqeCKOH 30HbI Ha6JIIO ... . An assessment of the biomass of individuals aged more than three years present over the Kerguelen Shelf ... of the stock in five years. The implementation of conservation measures does not, however, always allow ... of adult stock of three or four years earlier, which are caught in the trammel nets. Then a gradual ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 147–161 : Author(s): Duhamel, G.
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric characteristic?
Type I and Type II errors. Lack of knowledge about the sex ratio between years makes combining the data ... between years makes combining the data a very doubtful procedure and use of a discriminant function ... of knowledge about the sex ratio between years makes combining the data a very doubtful procedure and use ... , KOTopble qaCTO B KaKOH-TO Mepe COBna,llaIOT. XOT5I ,lIHCKpHMHHaHTHbIH aHaJIH3 MO)l{HO HCnOJIb30 ... o~eHoK xapaKTepH- CTHK MY)I{CKOrO H )l{eHCKOro nOJIOB MO)l{HO HCnOJIb30BaTb ,lIHCKpHMHHaHTHYIO
30 ... Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 259–272 : Author(s): Agnew, D.J.
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
the South Orkney Islands (Subarea 48.2) suffered substantial declines from split-year 1977/78 to 1989/90 ... declines from split-year 1977/78 to 1989/90. The biomass of several species of finfish has been monitored ... . The target time for a haul was 30 minutes, with any haul less than 20 minutes considered invalid ... ;;; 6 4 2 0 10 20 30 40 50 60 10 20 30 40 50 60 70 Length (cm) Length (cm) Figure 6: Length-frequency ... (Subarea 48.2) suffered substantial declines from split-year 1977/78 to 1989/90. The biomass of several ... ~zocepkalt~s acerafus, Dissostickzls eleginoides and unspecified finfish species. The first year of fishing ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 53–74 : Author(s): Jones, C.D., K.-H. Kock and E. Balguerías
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Biological characteristics of Antarctic fish stocks in the southern Scotia Arc region
, despite substantial catches in the first four years of the fishery and ample opportunity to sample ... these catches. The only scientific surveys of these stocks during these years were conducted by Germany in 1985 ... fishing since the closure of the region some 10 years ago. Differences in length-weight relationships ... one year or more, whereas in others gonad maturation was completed within one season. Length at sexual ... of G. gibberifvons belonging to age classes 0-2 (Figure 6) were caught in some numbers in waters of 20-30 m off ... , despite substantial catches in the first four years of the fishery and ample opportunity to sample ... these catches. The only scientific surveys of these stocks during these years were conducted by Germany in 1985 ... no evidence of illegal fishing since the closure of the region some 10 years ago. Differences in length ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 1–41 : Author(s): Kock, K.-H., C.D. Jones and S. Wilhelms
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Assessments of by-catch in trawl fisheries at Heard and McDonald Islands
the total by-catch in a year to the estimates of long-term annual yield, (ii) allowing catches of by-catch ... the total by-catch in a year to the estimates of long-term annual yield, (ii) allowing catches of by-catch ... at the end of 20 years of exploitation should be 75% of the pre-exploitation spawning biomass ... over a 20-year period. The lowest y satisfying these rules was determined for the three projections ... could be a combination of (i) limiting the total by-catch in a year to the estimates of long-term ... C. rhinoceratus 5.142 E-10 3.398 2 561 0.95 B. irrasa %N %kg 1 5 4 4 16 30 2 7 35 1 3 Skates ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 231–243 : Author(s): Constable, A.J., R. Williams and W.K. de la Mare