Resultados de la búsqueda
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Results of the tagging experiment for (D. eleginoides) in Subarea 48.4, 2007 update
. eleginoides. These were recaptured 84km and 14km from their points of release. 3. The UK proposes to continue ... may need to be extended for a few more years. Author(s): J. Roberts and D.J. Agnew (United Kingdom ... in catching and tagging the anticipated number of toothfish each year, the experiment and CM 41-03 ...
Meeting Document : WG-FSA-07/32 : Autor(es): J. Roberts and D.J. Agnew (United Kingdom)
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Variation in standing stock of the mackerel icefish Champsocephalus gunnari at South Georgia
commercial fishing. 2. The greatest effect has been observed in years when krill are known to have been ... scarce on the South Georgia shelf. 3. It is thought that C. gunnari survivorship is closely related to ...
Meeting Document : WG-FSA-99/63 : Autor(es): I. Everson, G. Parkes (United Kingdom), K.-H. Kock (Germany) and I. Boyd (United Kingdom)
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Circumpolar connections between Antarctic krill (Euphausia superba Dana) populations: Investigating the roles of ocean and sea ice transport
in the Southern Ocean. Krill have a close association with sea ice which provides access to a ... critical food source and shelter, particularly in the early life stages. Advective modelling of transport ... . Here we present Lagrangian modelling studies at the circumpolar scale that include interaction with sea ... Modelling (OCCAM) project model together with satellite-derived sea ice motion vectors to examine the ...
Meeting Document : WG-EMM-07/P10 : Autor(es): S.E. Thorpe, E.J. Murphy and J.L. Watkins (United Kingdom)
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Community Structure of copepods in epipelagic layers in the Ross Sea and neighboring waters
from three layers between the surface and 200 m with RMT 8m2 along the three longitudinal lines in the ... -2279.5; mean 610.5 inds. 1000 m-3) and dominance of Rhincalanus gigas (mean 88.4%). Group 2 located off ... -1542.1; mean 301.9 inds. 1000 m-3) and high composition of Calanus plopinquus (mean 19.0%), Rhincalanus ... gigas (mean 23.2%) and Calanoides acutus (mean 38.7%). Group 3 and 4 located in the Ross Sea (175°E ...
Meeting Document : WG-EMM-08/36 : Autor(es): Y. Watanabe, S. Sawamoto, T. Ishimaru and M. Naganobu (Japan)
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Conservation Measure Conservation Measure 182/XVIII (1999)
vessel at any one time. 3. In order to give effect to paragraph 2 above: (i) the precise geographic ... Dissostichus mawsoni discarded, including those with the ‘jellymeat’ condition, shall be reported. 47 182 ... /2000 season shall have at least one scientific observer appointed in accordance with the CCAMLR Scheme ... not later than three months after the closure of the fishery, but, where possible, submitted in time ...
Conservation Measure : 182/XVIII (1999)
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Length-at-age in juvenile Patagonian toothfish (Dissostichus eleginoides)
estimated to be from fish 1+ or 2+ years old, with mean total lengths of 32.5 cm and 41.3 cm respectively ... density was distinctly polymodal, to see whether ages estimated by reading otoliths were congruent with ... the length modes observed. Length densities by age were compared graphically with the overall length ... density observed. Additionally, ages were predicted for each fish based on length, and compared with ages ... majority of the otoliths (83.6%) were estimated to be from fi sh 1+ or 2+ years old, with mean total ... shown in Figure 3. The co- horts 0+ to 2+ years corresponded closely to the peaks evident in Figure 2 ... corresponds in toothfi sh at South Georgia. Length-at-age for the cohorts containing fi sh 3+ and 4+ years ... ned as 1+ year old. As in previous years, apart from the dates of the groundfi sh survey, no ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 1–10 : Autor(es): Ashford, J., C. Jones, S. Bobko and I. Everson
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Results of the CCAMLR Antarctic fish otoliths/scales/bones exchange system
3. Three investigators were experienced (1, 4 and 5) and two (2 and 3) had less experienced with ... 3) were experienced with the species and one was (4) less experienced. Age classes 2 to 12 were ... ) respectively 2: U. Hoffman (GDR) 3: E. 8arrera-Oro (ARG) 4: K.-H. Kock (FRG) not available, lost n r not ... agreement! 1 X 29.0 28.2 10.3 deviation = 1 year (%) 2 76.3 X 48.7 35.1 3 81 .1 89.2 X 59.9 4 66.7 88.5 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 197–226 : Autor(es): Kock, K.-H.
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Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea
Abstract: With the intent of stimulating discussion, we present four options for subdividing the ... dynamic allocation based on land-based predator monitoring conducted just prior to or early in the fishing ...
Meeting Document : WG-EMM-03/36 : Autor(es): R.P. Hewitt, G. Watters (USA) and P.N. Trathan (United Kingdom)
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Foraging ecology of grey-headed mollymawks at Marion Island in relation to longline fishing activity
zone. This brought them into contact with areas of intense Southern Blue-fin Tuna Thunnus maccoyii ... longline fishing. During the early post-guard phase, foraging trips were shorter and to the southwest of ...
Meeting Document : WG-FSA-99/25 : Autor(es): D.C. Nel, J.L. Nel, P.G. Ryan, N.T.W. Klages (South Africa), R.P. Wilson (Germany) and G. Robertson (Australia)
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
combines these IUU catch estimates with legal catches (for calendar years) by South African operators ... Total catches and CPUEs for these two years (Tables 2 and 3) are doubled to refl ect the effects of ... EEZ Figure 3: Population model fi ts and 20-year projections in terms of the exploitable component of ... catch limit and for surveillance are discussed. HISTORY OF THE FISHERY The Fishery In early 1996 ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Autor(es): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller