Résultats de la recherche
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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 ... ned as 1+ year old. As in previous years, apart from the dates of the groundfi sh survey, no ... peaks represented 2-year-old and 3-year-old fi sh. These same peaks correspond to those estimated as ... juvenile toothfi sh. Year classes containing fi sh 1+ and 2+ years old were well represented, but older ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 1–10 : Auteur(s): Ashford, J., C. Jones, S. Bobko and I. Everson
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Seasonal and inter-annual variability in the distribution of Electrona carlsbergi in the southern Polar Front area (the area to the north of South Georgia is used as an example)
concentrations throughout the year. Results of surveys showed that the distribution and behaviour of E ... year is related to parameters of spatial and vertical distribution of fish. Interannual variability of ... morning E. carlsbergi forms shoals and later in the day develops more dense concentrations with a ... concentrations throughout the year. Results of surveys showed that the distribution and behaviour of E ... variability during the year is related to parameters of spatial and vertical distribution of fish ... of the PFZ at various times of the year (rate of warming of the surface layer, rate of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 337–367 : Auteur(s): Kozlov, A.N., K.V. Shust and A.V. Zemsky
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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 : Auteur(s): 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 : Auteur(s): 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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Results of the CCAMLR Antarctic fish otoliths/scales/bones exchange system
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 ... year (%) 3.3 Notothenia gibberifrons Reader 1 2 3 Full Agreement (%) 1 2 X 100.0 100.0 ... 3. Three investigators were experienced (1, 4 and 5) and two (2 and 3) had less experienced with ... 22.9 38.0 12.0 deviation = 1 year (%) 2 60.0 X 26.2 25.6 7.0 3 54.2 47.6 X 16.7 6.0 4 71.2 50.0 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 197–226 : Auteur(s): Kock, K.-H.
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Counts of surface-nesting seabirds breeding at Prince Edward Island, summer 2001/02
conducted during December 2001. It was also the first census for most species since the early 1980s. Despite ... albatrosses Diomedea exulans (Vulnerable) has increased significantly, making Prince Edward Island equal with ... are unclear, but for macaroni penguins may be partly a consequence of competition for space with the ...
Meeting Document : WG-EMM-03/9 : Auteur(s): P.G. Ryan, J. Cooper, B.M. Dyer, L.G. Underhill,R.J.M. Crawford and M.N Bester (South Africa)
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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 ... 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 ... . This notifi cation followed the format of CCAMLR Conservation Measure 31/X. In keeping with the ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Auteur(s): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller
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Report on assessment and avoidance of incidental mortality in the Convention Area 1998/99
Abstract: This papaer summarises reports of lost, discarded and deployed fishing and marine gear ... and related activities undertaken by Australia in the Convention Area during the year to 30 June 1999 ...
Meeting Document : CCAMLR-XVIII/BG/31 : Auteur(s): Delegation of Australia
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Report on the assessment and avoidance of incidental mortality in the Convention Area 1997/98
Abstract: This paper summarises reports of lost, discarded and deployed fishing and marine gear ... related activities undertaken by Australia in the Convention Area during the year to 30 June 1998. Author ...
Meeting Document : CCAMLR-XVII/BG/11 : Auteur(s): Delegation of Australia
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Conservation Measure Conservation Measure 182/XVIII (1999)
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 ... 0.5° latitude by 1° longitude with respect to the northwest corner of the Statistical Subarea or ... by the Commission. 5 The specified period is adopted in accordance with the reporting period ...
Conservation Measure : 182/XVIII (1999)