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Status of the krill stock around Elephant Island in 1991/92 and 1992/93
austral summers of 1991/92 and 1992/93 are described and compared with information from previous years ... other years appears to be associated with female maturity development and spawning during the early ... appeared to be affected by dense salp concentrations during 1992/93 and 1989/90. File: 02loeb-siegel.pdf ... . The length frequency distributions and maturity stage composition reflected relatively good year class ... . 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 ... -south transects between 60" and 62"s and 53" and 57"30'W ('Elephant Island box'). In 1993 additional ... major difference between the two years was the abundance of salps (Salpa thompsoni - Table 1 ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 7–33 : Autor(es): 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 ... 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 ... 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 ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 135–144 : Autor(es): 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 ... BASED ON OBSERVED EUPHAUSIID DISTRIBUTIONS D.J. Agnew*, S. Nicol** * ** Abstract An observed ... krill swarm orientation and shape on the success of two proposed survey designs. The simulation ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 245–256 : Autor(es): 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
... 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 ... that all CDS Parties had been using the E-CDS format for nearly two years and that it had proven to be
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 ... % of the level that would occur in the absence of fishing within the two years following an abundance ... meeting the escapement rule, was to provide for two years of spawning (SC-CAMLR-XVI, Annex 5). The ...
Document : Site Section: Publications
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Possible effects of different levels of krill fishing on predators – some initial modelling attempts
suggested by the Joint Meeting of CCAMLR039;s Working Group on Krill (WG-Krill) and Working Group for the ... 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 ... 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 ... value for S? for each predator, which was to be the value midway between these two bounds. However ... --...- v l med~an 90%-~le 1, , C 0 1 I I I 0 50 100 150 200 (ii)b Time (years) 5 Z 8 Y 5 d E a ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Autor(es): 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 ... ) method has been in use for 20 years but there have been various attempts to use other analytical ... to be two ‘populations’ of krill, one in the ACC and another in the East Wind Drift, much closer to ... occurred year- round throughout Antarctica, and regularly with an estimated ~20% of the stock deeper than ... Kingdom S. Nicol and S. Kawaguchi Australian Antarctic Division Department of the Environment, Water ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 219–245 : Autor(es): 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 ... McDonald Islands (Division 58.5.2) in 1992 and 1993. The range of estimated ages was 4 to 25 years. There ... 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 ... 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 ... corresponding to the upper end of each bin. 0 5 10 15 20 25 30 200 250 300 350 400 450 500 550 600 650 ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 139–151 : Autor(es): 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 ... (Dissostichus eleginoides)). The bird-scaring system consists of one, two or three streamer lines attached at ... two years whereas the spread in effort decreased in the Crozet area. The effort of the fi shing ... 01 / 02 20 02 / 03 D ur at io n of fi sh in g: 8 m on th s 8 m on th s 4 ... 00 0 3 27 5 20 0 8 76 1 59 8 1 16 7 95 0 L in es s et 92 2 50 8 1 98 6 ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 53–80 : Autor(es): Delord, K., N. Gasco, H. Weimerskirch, C. Barbraud and T. Micol