Résultats de la recherche
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Status of the krill stock around Elephant Island in 1991/92 and 1992/93
. The length frequency distributions and maturity stage composition reflected relatively good year class ... success from the 1990/91 spawning season but poor success from 1991/92. Year class success from these and ... appeared to be affected by dense salp concentrations during 1992/93 and 1989/90. File: 02loeb-siegel.pdf ... austral summers of 1991/92 and 1992/93 are described and compared with information from previous years ... . Loeb and Siege1 (Dlink/Dmax) *l00 Variable 1---10---20---30---40---50---60---70---80---90---~00 ST ... . Frequency % 12 "l l0 l6 20 26 30 36 40 46 60 66 80 Total Length (mm) Frequency % 10 16 90 26 SO S6 ... ST-4 3 ST-59 -7 ST-58 -L ST-71 ST-4 4 ST-72 (Dlink/Dmax)*100 Variable 1---10---20---30---40 ... ---50---60---70---80---90---100 (b) ST-1 - ST-2 ST-48 ST-8 l ST-2 1 ST-5 1 ST-52 ST-3 6 ST-3 7 ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 7–33 : Auteur(s): Loeb, V. and V. Siegel
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The use of patent databases to predict trends in the krill fishery
20 30 40 50 60 70 80 90 19 76 19 78 19 80 19 82 19 84 19 86 19 88 19 90 19 92 19 94 ... 10 15 20 25 30 19 76 19 78 19 80 19 82 19 84 19 86 19 88 19 90 19 92 19 94 19 96 19 ... 19 90 19 92 19 94 19 96 19 98 20 00 20 02 20 04 20 06 20 08 Year Cu m ul at iv e Nu m ... 60 70 80 19 76 19 78 19 80 19 82 19 84 19 86 19 88 19 90 19 92 19 94 19 96 19 98 20 00 ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 135–144 : Auteur(s): Foster, J., S. Nicol and S. Kawaguchi
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Small scale krill surveys: simulations based on observed euphausiid distributions
norvegica is used to model the effects of krill swarm orientation and shape on the success of two proposed ... 0 0.0 0.1 20% change in mean density 30% 40% 50 ... involved searching each pass for krill occurrence. Radial transects were designed on a 90° arc from the ... krill swarm orientation and shape on the success of two proposed survey designs. The simulation ... propositions de modeles de campagnes d'evaluation. La simulation met en jeu un certain nombre de voies ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 245–256 : Auteur(s): Agnew, D.J. and S. Nicol
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e-sc-xxxiii.pdf
... met from 20 to 24 October 2014 at the CCAMLR Headquarters in Hobart, Tasmania, Australia. The meeting ... Working Group on Statistics, Assessments and Modelling (WG-SAM) met in Punta Arenas, Chile, from 30 June ... should be presented to WG-FSA using information from recaptured tagged fish with up to one, two and ... REPORT OF THE THIRTY-THIRD MEETING OF THE SCIENTIFIC COMMITTEE HOBART, AUSTRALIA 20–24 OCTOBER
application/pdf attached to:SC-CAMLR-XXXIIIMeeting Report : SC-CAMLR-XXXIII
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e-cc-xxviii-a5.pdf
... modernisation of this 20-year old scheme. The USA felt that the System of Inspection was relevant to several ... System of Inspection was more than 20 years old and that an update to the text was overdue, whilst ... meeting, the requirement to provide preliminary assessments had been in place for two years. 2.46 The ... preceding two years. 2.66 Whilst agreeing that face-to-face meetings were the most desirable option
application/pdf attached to:SCIC-09Meeting Report : SCIC-09
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Fishery Report: Champsocephalus gunnari Heard Island (Division 58.5.2)
Description / Abstract: APPENDIX S ... 20. The Working Group recalled that the current strategy of spreading catch over two years, while ... m ) 10 20 30 40 50 1996/971997/981998/99 1999/00 2000/01 2001/022002/032003/042004/052005 ... season Set so that status of the stock is determined at the end of each year 30 Nov–30 Nov ... Working Group noted that the 3+ cohort had been reproductively mature for one year and that following ...
Document : Site Section: Publications
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Possible effects of different levels of krill fishing on predators – some initial modelling attempts
krill predator species. A 039;one-way039; interaction model is developed, in which krill abundance ... 039;two-way039; interaction model (including also the effect of differing predator consumption ... development of the 039;one-way039; analyses. File: 06butterworth-thomson.pdf ... suggested by the Joint Meeting of CCAMLR039;s Working Group on Krill (WG-Krill) and Working Group for the ... one year), while for birds it is the age at first laying. The values of T were taken from the ... each case: y = 0 and two other values, one of which corresponds roughly to depletion of predator ... lues for parameters SF and S? will be discussed in the following section. ONE-WAY INTERACTION ... life-stage. Two parameters of equations ( I ) and (3) remain to be specified: P and S?. Given S ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Auteur(s): Butterworth, D.S. and R.B. Thomson
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Fitting Euphausia superba into Southern Ocean food-web models: a review of data sources and their limitations
fishery (sustained sampling in one place and wide area and time coverage) and via predators (long time ... , either from individual to schooling krill, or from one region to another. File: Atkinson-krill.pdf ... occurred year- round throughout Antarctica, and regularly with an estimated ~20% of the stock deeper than ... to be two ‘populations’ of krill, one in the ACC and another in the East Wind Drift, much closer to ... ) method has been in use for 20 years but there have been various attempts to use other analytical ... and Ecosystems CRC University of Tasmania Private Bag 80 Hobart, Tasmania 7001 Australia E ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 219–245 : Auteur(s): A. Atkinson, S. Nicol, S. Kawaguchi, E. Pakhomov, L. Quetin, R. Ross, S. Hill, C. Reiss, V. Siegel, G. Tarling (submitted to the 2008 Joint CCAMLR-IWC Workshop)
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Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in Australian sub-Antarctic trawl fisheries
from 156 Macrourus carinatus otolith samples collected during two research voyages to Heard and ... Paper Title: Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in ... Australian sub-Antarctic trawl fisheries Abstract / Description: Estimates of age and growth were obtained ... McDonald Islands (Division 58.5.2) in 1992 and 1993. The range of estimated ages was 4 to 25 years. There ... Ross Sea. 0 100 200 300 400 500 600 700 0 5 10 15 20 25 30 Age (years) To ta l l en gt h ... aged within two years of each other. The bias corrected bootstrap mean IAPE = 4.6% (CI = 3.2–6.0 ... Dorsal Ventral van Wijk et al. 142 0 5 10 15 20 25 30 -500 -400 -300 -200 -100 0 100 200 300 ... within one year. This relatively high level of precision was also indicated by a bias corrected ...
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
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Seabird mortality in the Patagonian toothfish longline fishery around Crozet and Kerguelen Islands, 2001–2003
petrels and grey petrels is explained by the time of year, geographical area and type of longliner (manual ... Collection of data The fi shing year extends from 1 September to 31 August. There are two types of ... (Dissostichus eleginoides)). The bird-scaring system consists of one, two or three streamer lines attached at ... one of the vessels taking nearly half of all incidental by-catch. Nearly 80% of incidental by-catch ... the various species is however different from the previous year. Between 70 and 80% of the in ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 53–80 : Auteur(s): Delord, K., N. Gasco, H. Weimerskirch, C. Barbraud and T. Micol