Résultats de la recherche
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A simple approach for calculating the potential yield of krill from biomass survey results
along these lines. 2. METHODS The mathematical detail of the calculations carried out is given in ... (a + t) = .e .. [ 1- e-{3(a+l)] O::;t::;l/o (2) Rosenberg et al.'s (op.cit.) fit to data ... are: a. =2; 4 ~=2;4 O's = 0; 0.5 A value O's = 0 is, of course, unattainable. It was selected to ... " set of parameter value choices. 4. RESULTS AND DISCUSSION Table 2 shows the estimates of A for the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 207–217 : Auteur(s): Butterworth, D.S., A.E. Punt and M. Basson
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Fishery Report: Dissostichus eleginoides South Georgia (Subarea 48.3)
Total removals ...................................................................... 2 1.3 Size ... distribution of catches (time series) ......................................... 3 2. Stocks and areas ... and C. 2. The catch limits in the 2009/10 season for Management Areas A, B and C were 0, 900 and 2 ... catch was 2 522 tonnes. Catches in Management Areas B and C were 903 tonnes and 1 618 tonnes ...
Document : Site Section: Publications
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Seabird mortality in the Patagonian toothfish longline fishery around Crozet and Kerguelen Islands, 2001–2003
/thousand hooks respectively in 2001/02 and 2002/03 (Table 2). Although the number of seabirds caught in ... a greater fi shing effort, the number of deployed hooks increased by 76%, Tables 2 and 3). Also ... zones) (Figure 2). Incidental by-catch (by-catch rate Fig- ure 2a and numbers of birds Figure 2b ... ± 0.06 birds/thou- sand hooks (March). Table 2: Summary of observed incidental mortality of seabirds ...
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
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Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.3a
.................................................................... 1 1.1 Reported catch...................................................................... 2 1.2 ... IUU catch ........................................................................... 2 1.3 Size ... distribution of catches ........................................................ 2 2. Stocks and areas ... (Conservation Measure 206/XIX). 2. In 2001, the boundaries of Division 58.4.3 were rearranged on the basis of ...
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Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
London W1J 5PN United Kingdom Email – j.clark@mrag.co.uk 2 Biology Department Imperial College ... July, and 21% in August. Figure 2 shows the distribution of interactions for both species by month ... centred on 53.75°S 40.5°W in Figure 2, western Shag Rocks (53.25°S 42.5°W) and SE South Georgia (55.25 ... , compared to the simple model, since most of the catches were taken from the non-high CPUE areas (Table 2 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 163–178 : Auteur(s): Moir Clark, J. and D.J. Agnew
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Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae) off the Chilean coast
mainly inhabit waters between 500 and 2 500 m depth (Salas et al., 1987), living near the bottom and ... comparative analyses. 2. CHILEAN FISHERY LEGISLATION The fishery of D. eleginoides is regulated in Chile ... ) (Figure 2). Sections of different types of hooks were arranged randomly along the longline according to ... methodology described by Pope et al., (1983). Each section comprised of 150 hooks placed 2 m apart on 60 cm ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 107–119 : Auteur(s): Moreno, C.A.
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Fishery Report 2018: Exploratory fishery for Dissostichus mawsoni in Subarea 48.6
any Patagonian toothfish (D. eleginoides) caught counting towards the catch limit for D. mawsoni. 2 ... block are provided in Table 1. 2 Table 1: Catch limits by research block in 2018 for ... of Dissostichus spp. in Subarea 48.6 peaked at 383 tonnes in 2012 (Table 2). The catches reported in ... footnote to Table 2. All ancillary data associated with these vessels (e.g. by-catch, tagging, observer ...
Document : Site Section: Publications
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Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions 58.4.1 and 58.4.2)
stock identity and biology. The maturity scale used by CCAMLR runs from 1 (immature) through 2–3 ... estimated as follows: ˆ x x R x R R I A B B = I A (2) where subscript R denotes values from the ... limits for ˆxB were estimated by bootstrapping equation (2), each time sam- pling Ix from a normal ... were identified through simple regression analysis. To obtain an estimate of uncertainty, 2 000 boot ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 71–100 : Auteur(s): Agnew, D.J., C. Edwards, R. Hillary, R. Mitchell and L.J. López Abellán
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The Patagonian toothfish (Dissostichus eleginoides) fishery in the Kerguelen Islands (Indian Ocean sector of the Southern Ocean)
географическими секторами) по взрослому компоненту эксплуатируемой популяции. Lord et al. 2 introduction ... and Anderson, 1998). The GLM is of the type: Variable to analyse = α + β1 factor 1+ β2 factor 2 ... and the actual mechanism, which generated the observed data. QAIC = [(- 2 Log £)/c] + 2 np ... percentages of stages 1–2 (juveniles without developed gonads) and stages 3 to 5 (fish engaged in the annual ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 1–25 : Auteur(s): Lord, C., G. Duhamel and P. Pruvost
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
coordinates for this survey are plotted in Figure 2. The fishing gear used to conduct the survey was the ... : Summaryofseabed areas (n miles2) around the South Orkney Islands, from Jones (2000). Table 2: Total nominal ... this analysis (Table 1). RESULTS Total 5 061.57 5 023.29 2 583.40 1 454.16 923.92 502.42 ... the total yield (Table 2). All surveys exhibited similar geographic distribution of yields, with ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 53–74 : Auteur(s): Jones, C.D., K.-H. Kock and E. Balguerías