Résultats de la recherche

1. An assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (CCAMLR Division 58.4.3b) based on fine-scale catch and effort data

   result, coupled with high estimated levels of illegal, unreported and unregulated (IUU) fishing, and ... inconsistencies are noted between historical data and those submitted in the 2006/07 season, with Patagonian ... -catch catch and effort. Further research, particularly research surveys, would greatly assist with ... seasons. This result, coupled with high estimated levels of illegal, unreported and unregulated (IUU ... season, with Patagonian toothfish (D. eleginoides) reportedly replacing Antarctic toothfish (D. mawsoni ... surveys, would greatly assist with assessing the status and stock structure of Dissostichus spp. in this ... and autoline longlines to target toothfish, with the overwhelming majority of catches comprising D ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 55–78 : Auteur(s): McKinlay, J.P., D.C. Welsford, A.J. Constable and G.B. Nowara

2. A hybrid approach to acoustic classification and length estimation of krill

   aggregation with probability: C3 = 3C2(1 – C) + C3 = 3(0.833)2(0.167) + (0.833)3 = 0.926. This expression ... r m fj frf k aΔ ≈ . The model has the shape of a two-state low- pass fi lter with the two bends at ... (L) of a euphausiid with equivalent radius (afj / fi ) can be estimated by approximating its trunk ... with an equivalent cylin- der 0.3L in length and 0.1L in diameter (Clay and Medwin, 1977) and equating ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 33–58 : Auteur(s): Azzali, M., I. Leonori and G. Lanciani

3. Areas of seabed within selected depth ranges in the South-West Atlantic and Antarctic Peninsula regions of the Southern Ocean

   . The co-ordinates are those of the northern, southern, eastern and western limits of each rectangle ... ) 4 Edition 1 1984). -. Boundary % Sea Area in Depth Range Lat (oS) Long CoW) Subdi vis ion N ... Edition 1 1984). Boundary % Sea Area in Depth Range Lat (oS) Long CoW) Subdivision N S E W 0-150 0 ... range (m) 0-50 50-150 150-250 250-500 >500 3 404 4 255 17 020 826 318 342 10 733 22 808 12 075 296 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 49-73 : Auteur(s): Everson, I.

4. Soviet proposals for a program of ecosystem monitoring in the Commonwealth Sea and Prydz Bay

   three major research directions, the findings of which might then be seen in inter-relation with the ... variables with biological patterns and distributions of species) ; 2. Life-cycle strategies and the ... .11), are envisaged to be regularly conducted with data on physical and chemical parameters of the ... -dwelling seals in the coastal part of the area, should be made in conjunction with the above studies ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 355-362 : Auteur(s): USSR

5. Population genetic structure of Patagonian toothfish in the West Indian Ocean sector of the Southern Ocean

   variation was seen within collections. Comparisons with previously collected genetic data from Heard and ... collections. Comparisons with previously collected genetic data from Heard and McDonald Island collections (n ... indicated restricted gene fl ow, with fi sh at each of the fi shing locations comprising independent units ... are contigu- ous with water no deeper than 600 m separating the two areas (Williams et al., 2002). In ... and compared these data with previ- ously collected genetic data from collections of D. eleginoides ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 21–32 : Auteur(s): Appleyard, S.A., R. Williams and R.D. Ward

6. Midwater trawl catchability in relation to krill and possible ways of assessing gross catch

   and netting and also the probability that krill will come into contact with various parts of the net ... as it passes through the trawl sides. Studies were based on the results of 250 hauls made with a 72 ... /308 trawl. Catchability was worked out with the aid of fine-meshed chafers, hydroacoustic methods and ... theoretical calculations. A comparison of the experimental hydroacoustic assessment with the calculated one ... and also the probability that krill will come into contact with various parts of the net as it passes ... through the trawl sides. Studies were based on the results of 250 hauls made with a 72/308 trawl ... . Catchability was worked out with the aid of fine-meshed chafers, hydroacoustic methods and theoretical ... calculations. A comparison of the experimental hydroacoustic assessment with the calculated one demonstrated ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Auteur(s): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov

7. Target strengths of krill at 136 and 20 kHz

   . Ensonification of encaged live krill. For aggregations with mean lengths from 45 to 50 mm the mean single-krill ... target strengths range from-68 to-69 dB at 136 kHz. For aggregations with mean lengths from 43 to 47 mm ... . For aggregations with mean lengths from 47 to 50 mm the mean target strengths ranged from-71 to-75 dB ... . At the same frequency for aggregations with mean lengths in the range 41 to 47 mm the mean single ... aggregations with mean lengths from 45 to 50 mm the mean single-kriU target strengths range from -68 to -69 dB ... at 136 kRz. For aggregations with mean lengths from 43 to 47 mm the mean single-kriU target ... strengths range from -71 to -77 dB at 20 kRz. Trawl hydroacoustic method. For aggregations with mean ... aggregations with mean lengths in the range 41 to 47 mm the mean single-krill target strength is in the range ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 141–157 : Auteur(s): Kasatkina, S.M.

8. Krill biomass assessment in Statistical Area 48 from the RV AtlantNIRO data - Autumn 1989/90

   periphery of the Weddell Sea eddy (Fedulov et al., in press). Krill was taken with an Isaacs-Kidd net ... waters coincided with dynamic elements such as meanders, mesoscale circulations and parts of the Frontal ... Sandwich Islands study area, with the bulk of the stock concentrated in the Weddell Sea waters, suggests ... with mesh size 3.4 mm) are close to ours. Bearing this in mind, as well as the paucity of data and the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 115–121 : Auteur(s): Fedotov, A.C.

9. Seabird by-catch by autoline vessels: do line setters increase the sink rate of integrated weight longlines?

   integrated weight longlines? Abstract / Description:  Line setters are used with integrated weight (IW) (50 g ... the sink rates of IW longlines. Time-depth recorders were deployed on lines set with and without a ... line setter using a paired-treatment design. Sink rates of longlines set with and without a line setter ... likely to be most intense. Longlines deployed with the line setter entered the water several metres ... setter Magazine set with line setter Magazine join TDRs 3���� m apart and 3���� m from magazine ... . Treatment Target depths (m) 0–2 0–3 0–5 0–10 0–20 With 7.9 12.1 20.4 38.6 76.9 Without 7.4 12.9 20.7 ... , this distance varied from 3 to 4 m but may be up to 8 m with UW long- lines (Løkkeborg and Robertson ... of Fisheries PO Box 1020 Wellington, New Zealand Abstract Line setters are used with integrated ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 107–114 : Auteur(s): Robertson, G., J. Williamson, M. McNeill, S.G. Candy and N. Smith

10. The fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea 48.3

    species. The small size of P.b. guntheri means that they can only be caught with net meshes so small that ... . guntheri means that they can only be caught with net meshes so small that they would also catch undersized ... 12NII which limited the total catch for the season to 13 000 tonnes. In the following year the total ... South Georgia as at Shag Rocks. This is at variance with information reported in the CCAMLR Working ... permitted under Conservation Measure 2/III for other species. A net operating with a mesh as fine as this ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 275–283 : Auteur(s): Everson, I. and C. Mitchell

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