Résultats de la recherche
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Management and uncertainty: the example of South Georgia
would probably take two whole generations i.e. about 10 years (BIOMASS report Table 2). The more ... (e.g. 10 million) - giving a Y/R of 500 to 800 gms, and a total yield of 5-8 thousand tons. It might ... ages over 10 years and 19% over 20 years. The short lived fish were mostly small fish like anchovy ... the next 10 years. If recent year-classes are not quite so bad, say no worse than that of 1978, then ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 341-353 : Auteur(s): Gulland, J.A.
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A review of data on abundance, trends in abundance, habitat use and diet of ice-breeding seals in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)
that leopard seals are primarily shallow divers, with most dives to depths of 10–50 m and only occa ... diet), and occasion- ally crustaceans (~10%) and benthic invertebrates (<10%) (Øritsland, 1977). There ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 49–74 : Auteur(s): Southwell, C., J. Bengtson, M. Bester, A.S. Blix, H. Bornemann, P. Boveng and M. Cameron, J. Forcada, J. Laake, E. Nordøy, J. Plötz, T. Rogers, D. Southwell, D. Steinhage, B.S. Stewart and P. Trathan
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Fishery Report: Exploratory fishery for Dissostichus spp. (TOT) in Division 58.4.3a
. 10. Since 2012, vessels have been required to tag and release Dissostichus spp. at a rate of five ... .) Season Flag State Vessel name Number of hauls R C Total 2005 Australia Avro Chieftain 10 10 Korea ... , Republic of Bonanza No. 707 10 10 20 Spain Arnela 20 6 26 Galaecia 34 79 113 2006 Spain Galaecia ... 13 2009 Japan Shinsei Maru No. 3 10 49 59 2010 No fishing 2011 Japan Shinsei Maru No. 3 9 0 ...
Document : Site Section: Publications
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Prey monitoring surveys: a discussion of the characteristics necessary in prey surveys
time taken to travel between pairs would be minimised. Assuming a constant survey speed of 10 knots ... , then about three transects per day could be surveyed. This would permit a set of 10 transects to be ... surveyed in random order so as to minimise bias, e.g. 9+10, 5+6, 1+2, 3+4, 7+8. Tableau 1 Figure 1 ... hasard afin de minimiser tout biais, par ex. 9+10, 5+6, 1+2, 3+4, 7+8. Encabezamientos de las Tablas ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 377-391 : Auteur(s): Everson, I.
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Standardization of fishing effort for Champsocephalus gunnari in the South Georgia area (Subarea 48.3)
(tonnage class 10) in October which used bottom-fishing gear. The multiple coefficient of correlation is ... Number of Observations 1 3 Intercept 1.751 0.233 103 2 2 3 10 4 10 5 1983 1 1 1 -3.332 0.720 3 ... 0.653 1 11 7 0.230 0.164 19 4 1 8 -0.099 0.252 12 2 9 0.029 0.284 7 3 10 -0.056 0.268 7 4 11 ... Numbers: 3 2 10 10 Year Total Catch Catch Rate Prop. Mean SE Effort 1981 29464 0.249 2.083 0.765 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 327–336 : Auteur(s): Gasiukov, P.S.
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An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands using CASAL
observers in 10 mm bins. In the model, these length-frequency (LF) data were aggregated into 100 mm bins ... 3 T ra w l B (f 2) E ar ly (s 1) 0 0 0 29 69 19 62 10 28 29 0 14 7 ... 10 12 29 92 3 15 93 61 2 11 6 61 6 15 4 T ra w l B (f 2) L at e (s 3 ... 1999 58 6 2000 24 71 48 2001 10 19 94 74 2002 10 2 65 56 84 2003 3 1 11 ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 1–34 : Auteur(s): Candy, S.G and A.J. Constable
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Preliminary model of krill fishery behaviour in Subarea 48.1
Preliminary Model of Krill Fishery Behaviour (l0 longitude by 0.5" latitude) and temporal blocks of 10-day ... index and e x , = catch-per-unit-effort (tonnes-per-hour). t is a product of the number of 10-day ... that a vessel normally fishes in a 10-day period. Chilean data over 1989 to 1992 showed that the ... 89.6 hours per vessel per 10-day period (number of 10-day-periods = 22, SD 30.4). The total time ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 71–79 : Auteur(s): Agnew, D.J. and V.H. Marín
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Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass
la explotacion y por 10 tanto no requiere correccion. Este trabajo examina 10s efectos de las ... large number, say 10 001, of replicate determinations of the pre-exploitation biomass). Thus, no ... , while the second set used 10 001 replicate random initial age structures to estimate S,,. Two types ... ) and from 3 10 001 randomised starts. Three criticallhvels of depletion are examined as proportions of ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 1–8 : Auteur(s): Constable, A.J. and W.K. de la Mare
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Cephalopods: Trophic modelling of the Ross Sea
% small demersal fishes; 5% silverfish; 5% pelagic fishes; 5% cephalopods (cannibalism); 10% E ... . crystallorophias; 15% E. superba; 10% other macrozooplankton; 30% mesozooplankton; 5% megabenthos; 10 ... intake of about 10% per day (see Wells & Clarke 1996 and references therein). Pecl et al. (2004) uses ... lead to P/B value for adult arrow squid (>10 cm ML) of 3.1 y-1. The von Bertalanffy growth parameters ...
Document : Site Section: Publications
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Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in Australian sub-Antarctic trawl fisheries
. 10 (2003): 139–151 139 AGE, GROWTH AND SIZE AT SEXUAL MATURITY OF MACROURUS CARINATUS CAUGHT AS ... weight (to the nearest 10 grams) of a random subsample of fi sh. Only fi sh with undamaged tails were ... Dorsal Ventral van Wijk et al. 142 0 5 10 15 20 25 30 -500 -400 -300 -200 -100 0 100 200 300 ... ). Region a b R2 N Heard and McDonald Island 2.4589 × 10-9 3.1159 0.9721 474 Macquarie Island 1.4676 × 10 ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 139–151 : Auteur(s): van Wijk, E.M., R. Williams and A.J. Constable