Search results
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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
region under consideration: - 216 - /3 =.f S ,where S is region area, and'p is average surface ... circle. In other words, using (1), the equality (4) can be rewritten in the form! (6) Hydroacouetic ... argumant, z~R ,their correlation functions coincide, then 6 and C are universal constants. From (9 ... oonsiderations allow us to apply r9a~~a obtained to anisotropic fieldB in ~hich one can 3?ecifJ two th~t ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 213-228 : Author(s): Kizner, Z.I.
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Size at sexual maturity of Patagonian toothfish (Dissostichus eleginoides)
CCAMLR Science, Vol. 6 (1999): 3746 SIZE AT SEXUAL ... examinees. 5b1n nposegeH a ~ a n ~ s p a s ~ e p a npu AocTMrneHMH n o n o ~ o 3 p e n o c ~ ~ no s ~ s ... gonad was in maturity stage 3 to 5 (Everson et al., 1996). The data were grouped into periods of two ... virgin or resting 3. Developing 4. Gravid 5. Spent Male: 1. Immature 2. Developing or ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 37–46 : Author(s): Everson, I. and A.W. Murray
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A review of the trophic role of mesopelagic fish of the family Myctophidae in the Southern Ocean ecosystem
, YTO DaHHarr rpynna ~esonena r~veceux p616 urpaeT samHym ponb B c o o 6 ~ e c ~ s e MOPCKUX O P ... BbICOKYIO YHCneHHOCTb U 6UoMaccy 3 T H X pb16. C O ~ J I ~ C H O npe~BapHTeJlbH0fi OqeHKe, rOAOBOe ... IlpOAyKqHIO O ~ ~ ~ H U ~ M O B B~ICLLIUX 3 ~ e ~ b e ~ n a ~ e s o f i qenH ( o n p e ~ e n e ~ ~ b ~ x ... consumption, which amounts to 3.27% and 3.86% of body weight respectively. A similar rate of consumption, 3 ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 71–77 : Author(s): Kozlov, A.N
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Modelling krill recruitment
when the value for S is calculated with k ( t ) used in equations ( 5 ) and (6) set to Correcting ... realisation using equations (5) and (6). The variance is adjusted according to equation (20 ) and then used ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 49–54 : Author(s): W.K. de la Mare
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Use of indices of predator status and performance in CCAMLR fishery management
of resources should not be detrimental to natural consumers (see Article 11, paragraph 3{b)). This ... over several years (see SCAR 1979, p. 306; BIOMASS 1980, p. 16; BIOMASS 1982, p. 6; SC-CAMLR-IV, p ... the start of a new fishery. 357 -------------------------- ----- 2. 3 Harvesting Perspective ... and places, may have significant adverse effects. 3. SPECIFIC APPROACHES lt is not intended to ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 353–365 : Author(s): Croxall, J.P.
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Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change
- ed to be felt across the Antarctic as the ozone hole heals, with a predicted warming of about 3°C ... a period of just a few days in 2002 losing ~3 370 km2 (MacAyeal et al., 2003). The collapse of the ... , 20121), meaning that the area of new open water (exposed since 2010) is 3 324 km2; this is equivalent ... B south ice shelf in 2010 was 3 375 km2, whilst in 2012 it was 1 884 km2, representing a loss of ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 139–151 : Author(s): Trathan, P.N., S.M. Grant, V. Siegel and K.-H. Kock
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Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01
l’écosystème. Резюме В сезоне 2000/01 г. в районе Южной Георгии были проведены 3 акустические съемки ... krill densi- ties for each transect are given in Table 3. Weighted mean krill densities (and their vari ... -39.02 nets South, mid 41.3 nets -38.71 nets West, late 46.7 preds -38.61 TSc preds Table 3: Transect ... 43.81 West W12 2 Jan 2001 80.41 31.85 West W21 3 Jan 2001 80.70 100.69 West W22 3 Jan 2001 81.26 27.81 ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Author(s): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst
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Management and uncertainty: the example of South Georgia
millions before 1965, to some 3 to 6 millions for the 1967 to 1975 year-classes, to possibly only 40,000 ... TaKOH HeOnpeAeJleHHOCTH. M3 H 3 Y q e H H 51 eTa T e H I X 2 ( f ) H XV 2 ( e • d ) KOHBeH~HH AHTKOM ... present M=O.ll, F=0.65. Annual recruitment, as numbers at 3 years old, has fallen from some 20 ... fishing. Optimistically it might take 6-7 years, but pessimistically it might take more than 20 years ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 341-353 : Author(s): Gulland, J.A.
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Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
000µ (2) ( )2~ N 0,i Yα σ (3) ( )2~ N 0,j Aβ σ (4) ( )2~ N 0,ij YAγ σ (5) where ijY is the ... effect and the haul effect on krill length: ijkl ij k ik iklY Y θ λ ω= + + + (6) ( )2~ N 0,k Vθ σ (7 ... distribution with nested cluster sampling units showing approx- imately good fit overall (Figure 3). Temporal ... Statistical Computing, Vienna, Austria. ISBN 3-900051- 07-0, www.R-project.org. Reid, K., E.J. Murphy, V ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Author(s): Okuda, T. and M. Kiyota
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The use of predator-derived krill length-frequency distributions to calculate krill target strength
factor was developed based on this relationship: TS, = TSS, - 10(log(1. 01 + 0 . 0 9 6 1 ... and population structure to produce a at South Georgia. Mar. Ecol. Prog. Ser., 150 (1-3): more ... CONCLUSION Science, 6: 47-57. Comparison of data on the performance of Demer, D.A. 1994. Accuracy and ... Islands during a season of krill scarcity. Mar. Ecol. Prog. Ser., 138 (1-3): 51-61. Foote, K.G., I ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 155–163 : Author(s): Reid, K. and A.S. Brierley