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1. Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change

   Peninsula region. One of the most evident signs of climate change has been ice-shelf collapse; overall, 87 ... one of the recommendations made by the Antarctic Treaty Meeting of Experts in 2010. File:  Trathan et ... of the George VI ice shelf (67.840°W 71.692°S) which lost ~993 km2 over a number of years between ... to a reduction of almost 25% in the ice shelf in just two years. Similarly, the area of the Larsen ... two seasons 1978/79 and 1979/80 targeting marbled rock cod (Notothenia rossii) and mackerel icefish ... Widespread near Antarctic Ice Sheet Grounding Lines. Science, 296: 2020–2023. Rignot, E., S. Jacobs, J ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 139–151 : Автор(ы): Trathan, P.N., S.M. Grant, V. Siegel and K.-H. Kock

2. Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3

   year, depending on how many of the previous three years' CPUE values fall below a target level of ... prevent the expected lowest biomass of krill over a 20-year harvesting period from falling below 60% of ... -year period considered. Simulation tests, including one particular test of robustness to the ... for the simulation testing of procedures, and an operational definition of CCAMLR Article II to ... objectives. Since the analysis is stochastic, the statistics change from one 20-year simulation to the next ... ) Average annual catch over 20 years: Cav (objective n.). (ii) Catch in twentieth year: C20• 197 ... the management procedure. TAC in year y. Average annual catch over the first 20 years of operation ... alternative would appear to be one which attempts to take account of the requirements of Article n in an ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 189–219 : Автор(ы): Butterworth, D.S.

3. Results of fish stock assessment survey, South Georgia region, November - December 1986

   /85 year classes. Coefficients of variation ranged from 67.9% (Notothenia squamifrons) to 12.6% (C ... I ¥ i \ (, Y I Y I \ i i { I \ i I ( I' i I i I I I I I o 10 20 30 40 50 60 70 80 90 100 LENGTH ... ' L \ i j i I , I o 10 20 30 40 50 60 70 80 LENGTH, CM 90 100 110 120 130 Figure 13. Length ... age 3 fish (Figure 18). The upper mode(s) (48-51 cm) probably include fish aged 6-7 or 8 (depending ... late 1970's in the South Georgia region has been documented for several years (e.g., Kock et al ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 143-183 : Автор(ы): Gabriel, W.L.

4. Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic Peninsula region

   one summer season was roughly estimated as two times from which follows a maximum total effective ... resulted a rate of Z = 0.88 (1989/90) and Z = 0.96 (1987/88). Production was estimated and resulted a P/B ... ratio of 0.88 to 0.94 for different years. The exchange rate of water masses and krill biomass within ... Antarctic Peninsula survey area for different years. 30 • PN87/88 29 oME89/90 28 z27 .E 26 25 ... three year life span of krill. Their age group 1 (20 to 43 mm) included the two age groups 1+ and 2 ... than in 1989/90, although two age groups (1 + and 3+) were almost missing in this 166 season ... exchange rate of water masses and krill biomass within one summer season was roughly estimated as two ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 159–176 : Автор(ы): Siegel, V.

5. Selectivity of standard Polish commercial trawl codends on Antarctic fishing grounds

   Abstract / Description:  Selectivity studies were carried out for two types of steelon codends used in ... commercial fishery, with a nominal mesh size A = 80 mm and A = 100 mm, made of double twines with a thickness ... Chionodraco rastrospinosus exhibit a lower tendency to pass through meshes of the codend than Antarctic ... ~ FLOATS 90 PlS CP200 'S ~ ,... I)' 30 PlS ~ Q.'" ~ l-!£ADL1N£RIGG lH C Schematic drawing ... ..-_, __ ...,.--_,.--_...,.--__ 20 30 1.,0 50 [CM] I=\S+\ LENCHl Selection of bumphead notothenia on ... carried out for two types of steelon codends used in commercial fishery, with a nominal mesh size A = 80 ... those in the 80 mm codend (Table 3). During the study, due to a failure, one codend had to be replaced ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 107-142 : Автор(ы): Zaucha, J.

6. Krill biomass in Area 48 and Area 58: recalculations of FIBEX data

   3S'W 30'W 2S'W 20'W 1S'W r-------------------------~------------~------t_SO'S ...... 00 '1 ... ) 30'W 2S'W 20'W Figure 1: FIBEX survey areas and CCAMLR statistical sub areas in the West Atlantic ... sector. \0 55'S 00 '1" ~ W Cl:: ~ P=l ;::J rJ) 60'S 65'S IS'W 50'S 60'S 20'W ... -- --, ",,' -j 20'[ 30'[ .to'[ 50'E Agu(hos, Norlon DuPresne, Kalyo Noru and Nel 10 Don HERCATOR ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Автор(ы): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss

7. Observation of seabirds in the Southern Ocean in 1988/89

   Southern Ocean to the south of 60°S. Thirty minute observations were made daily during daylight hours at 8 ... :00; 12:00, 16:00 and 20:00 ship-time, while sailing between Antarctic stations and while en route to ... 73°30'S in the Pacific sector. Most often single birds were observed and it was rare for two to be ... part of the Mawson Sea (61°S, 108°W). In the Paciftc sector only small numbers (one or two) of birds ... (72°34'S, 173°W). A repeated survey of the Indian Ocean sector in autumn revealed that one or two ... exceed one or two. A slight increase of wandering albatrosses to the north was observed in the autumn ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 521–542 : Автор(ы): Vagin, A.V. and V.V. Popov

8. A study of Patagonian toothfish (Dissostichus eleginoides) post-tagging survivorship in Subarea 48.3

   . Toothfish were kept in tanks with seawater replacement for at least 12 hours after tagging. On one vessel ... , 396 animals were included, with an overall survivorship of 90%. Smaller animals and animals in better ... -tagging survivorship of 95% or more. An assumption of 90% post-tagging survivorship is a conservative ... oo d 2a ve ra ge 3p oo r fish.length.cm s( fis h. le ng th .c m ) 60 70 80 90 100 -5 0 ... 5 days.after.1.June s( da ys .a fte r. 1. Ju ne ) 0 20 40 60 80 -2 -1 0 1 2 3 4 ... ( fis h. le ng th .c m ) 60 70 80 90 100 -5 0 5 days.after.1.June s( da ys .a fte r. 1. Ju ... ne ) 0 20 40 60 80 -2 -1 0 1 2 3 4 fishing.depth.m s( fis hi ng .d ep th .m ) 600 800 ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 279–289 : Автор(ы): Agnew, D.J., J. Moir Clark, P.A. McCarthy, M. Unwin, M. Ward, L. Jones, G. Breedt, S. Du Plessis, J. Van Heerdon and G. Moreno

9. A simple approach for calculating the potential yield of krill from biomass survey results

   median pre-exploitation level over a 20 year period of harvesting should equal 10%. The value of, λ ... for the calculations is that the probability that the krill spawning biomass drops below 20% of its ... the following 20 years, is that from a single pre-exploitation biomass survey. No account is taken of ... -lived animal. If this is correct, one would not expect a value of M that is very high (or too few krill ... aged a years and above (Ba+) is given by: Ba+(y)= f Wa Ny,a exp[-{1.5 M/12+F(Y)/2}] (A.7) a=a+ The ... DYNAMICS MODEL . The numbers of lain of age a years at the start of "year" y (Ny,a) are governed by the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 207–217 : Автор(ы): Butterworth, D.S., A.E. Punt and M. Basson

10. Low breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 season

    fewer local trips and both sexes spent longer at sea than in years of higher breeding success. Meal ... years. Two other years, 1994/95 and 1995/96, also experienced low breeding success rates of 0.05 and ... significantly greater in 1998/99 than in two of the years with higher breeding success (p < 0.05), and the ... carrying out the dietary analysis. We are also grateful to E. Woehler, S. Nicol, Y. Cherel and one ... seven days during mid-January each year at longitude 60°E. Chick Growth (CEMP A7) About 30 chicks ...

    Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 151–167 : Автор(ы): Irvine, L.G., J.R. Clarke and K.R. Kerry

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