Search results
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A study of Patagonian toothfish (Dissostichus eleginoides) post-tagging survivorship in Subarea 48.3
were included, with an overall survivorship of 90%. Smaller animals and animals in better initial ... survivorship of 90%. Smaller animals and animals in better initial condition had a higher survivorship than ... with a variety of injuries were selected to see if this affected recovery. In the final analysis, 396 animals ... condition had a higher survivorship than large animals and those in poor condition. The results suggest ... if this affected recovery. In the final analysis, 396 animals were included, with an overall survivorship of 90 ... fish.condition 1g 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 ... 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 ... of considerably higher than 90%, at least approaching 95%, if they use only animals in good condition and return ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 279–289 : Author(s): 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
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Diet study of Antarctic toothfish caught in the east Antarctic based on stomach content, fatty acid and stable isotope analyses
at higher trophic levels through multivariate analyses. This is because the FA pro- files in the tissues ... ). δ13C in an animal usually occurs within 1‰ compared with that of its diet (DeNiro and Epstein, 1978 ... as a carrier gas. The GC temperature was pro- grammed from 50°C for 1 min, ramping to 150°C at 30°C min ... taxa and prey items contained in stomachs, and to identify the relationship among the animals ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 29–44 : Author(s): Park, H.J. , I. Yeon, E. Han, Y.J. Lee, S.M. Hanchet, G.W. Baeck, Y. Kwon, S.G. Choi, D.W. Lee and C.K. Kang*
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Joinville–D’Urville Islands (Subarea 48.1) – a former fishing ground for the spiny icefish (Chaenodraco wilsoni), at the tip of the Antarctic Peninsula – revisited
restricted to the two seasons (1978/79 and 1979/80) when Polish and GDR vessels fished in the area. Length ... elements. The available information on the biology of C. wilsoni was reviewed. Some new information ... was, however, sparse, being restricted to the two seasons (1978/79 and 1979/80) when Polish and GDR vessels ... was reviewed. Some new information was available on the reproduction and feeding of some of the species. Krill ... – a review and pro spects for future research. Rev. Fish Res. (in press). Kock, K.-H., C.D. Jones ... to the two seasons (1978/79 and 1979/80) when Polish and GDR vessels fi shed in the area. Length ... -Antarctic elements. The available information on the biology of C. wilsoni was reviewed. Some new ... qui se limitent aux deux saisons de pêche (1978/79 et 1979/80) des navires polonais et de la RDA dans ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 1–20 : Author(s): Kock, K.-H., L. Pshenichnov, C.D. Jones, K. Shust, K.E. Skora and Zh.A. Frolkina
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Consideration of major issues in ecosystem monitoring and management
70 80 90 100 Year Po pu la tio n si ze Recruitment fails twice at random each decade ... Recruitment normal 50% Survivorship 0 1000 2000 3000 4000 0 10 20 30 40 50 60 70 80 90 100 Year Po pu ... of the major issues relevant to ecosystem monitoring and management within CCAMLR is recognition of Article ... II of the Con- vention, which is partly reproduced below: Article II, paragraph 3: Any harvesting ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 213–232 : Author(s): Everson, I
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Estimation of natural mortality using catch-at-age and aged mark-recapture data: a multi-cohort simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation.
to estimate the proportion of tagged fish at lib- erty (referred for the remainder as the ‘tagged pro- portion ... be applied to the CCODE model, is to model the effect of a simplified observational error pro- cess ... , this gave year classes or cohorts (c) of 1 to 46 corresponding to calendar years of 1975 to 2020 for which ... 1000 0.1248 0.0261 –4.35, –3.46 –4.00 4.78 0.16 1000 0.1558 0.0051 –2.90, –2.33 –2.60 2.65 CCODE Fix ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 1–27 : Author(s): Candy, S.G.
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Management and assessment options for the crab fishery around South Georgia
fishery in Subarea 48.3 with specific reference to Article I1 of the CCAMLR Convention. In the final ... on the migration/dispersal patterns within the stock. If the animals are highly migratory, the stock structure ... options for the crab fishery around South Georgia together with the requirements of Article I1 ... of the CCAMLR Convention. The objectives in sub-paragraph 3 of Article I1 may be paraphrased as follows ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 193–202 : Author(s): Basson, M. and D.D. Hoggarth
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
) is reviewed briefly. It is characterised by very large illegal catches and a sharply declining longline catch ... Islands Exclusive Economic Zone (EEZ) is reviewed briefly. It is characterised by very large illegal ... (Dissostichus eleginoides) in the Prince Edward Islands Exclusive Economic Zone (EEZ) is reviewed briefl ... . In the interests of providing some pro- tection for the resource, this forced South Africa in late 1997 to break ... in Table 5, together with those for projections to 2010 and to 2020 under a future constant annual catch ... is essential. To date two aerial and one sea reconnaissance trips have been undertaken by South Africa ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Author(s): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller
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CCAMLR ecosystem monitoring and management: future work
in meeting its objectives, the CCAMLR Ecosystem Monitoring Program (CEMP) was set up to detect the effects ... of maintaining ecological relationships and meeting the needs of predators, incorporating: (i) operational ... . This paper reviews progress in developing ecosystem-based management procedures by summarising the gaps ... in meeting its objectives, the CCAMLR Ecosystem Monitoring Program (CEMP) was set up to detect the effects ... such information. To assist the Commission in meeting its objectives, the CCAMLR Ecosystem Monitoring Program ... a management procedure which has a good chance of maintaining ecological relationships and meeting the needs ... ) methods for dealing with uncertainty. This paper reviews progress in developing ecosystem-based ... n des années 80, la CCAMLR a élaboré une approche de précaution qui englobe le principe de ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 233–253 : Author(s): Constable, A.J
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A stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region incorporating multi-year mark-recapture data
100 120 60 65 70 75 80 85 90 D en si ... ). To date, the main fishery for Antarctic toothfish in the high seas of the CAMLR Conven- tion Area has ... ., 2005; Hillary and Agnew, 2006). Extended reviews of the different uses of mark-recapture data ... of absolute abundance of the fish population in the RSR. 60° S 65° S 70° S 75° S 80° S 150 °E 160 ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 39–62 : Author(s): Mormede, S., A. Dunn and S.M. Hanchet
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The survivorship of rays discarded from the South Georgia longline fishery
3 14.3 90 82.6 0.002 Wind speed 3 1.92 89 80.76 0.166 Sex 1 5.10 88 75.66 0.023 Total length 3 0.94 87 ... rti al fo r s ex -1 0 1 2 sex F M length s( le ng th ) 70 80 90 100 110 ... - sideration. Normally only skates that are alive and undamaged are selected, with animals not being deemed ... the meeting of CCAMLR’s Working Group on Fish Stock Assessment (WG-FSA) in October 2002, methods of reducing ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 155–164 : Author(s): Endicott, M. and D.J. Agnew