Résultats de la recherche
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Pêcher en mer, pas en l'air
Description / Abstract: How to avoid by-catch of seabirds when fishing with bottom longlines ... attachment to non-IW longlines of 5 kg weights at 50 to 60 m intervals are recommended. 3. Vessels using ... at least 8.5 kg mass shall be used, spaced at intervals of no more than 40 m, or weights of at least ... 6 kg mass shall be used, spaced at intervals of no more than 20 m. 4. Longlines shall be set at ... design of mitigation measures may be tested on vessels carrying two observers, at least one appointed in ...
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Fishery Report 2018: Dissostichus eleginoides Heard Island Australian EEZ (Division 58.5.2)
been found (Welsford et al., 2011; WG-FSA-15/55). Fifty percent of fish are estimated to be mature at ... limit of 1 663 tonnes for C. rhinoceratus. 28. Length–weight relationships, length-at-maturity data ... incidental mortality of birds and mammals Observers Each vessel to carry at least one scientific observer ... pp. Candy, S.G. 2011. Estimation of natural mortality using catch-at-age and aged mark-recapture ...
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Fishery Report 2018: Exploratory fishery for Dissostichus mawsoni in Subarea 88.1
-ice conditions on the operation of a fishery at the 5 resolution of a season (WG-FSA-15/35 ... ‘good’ ice year with 71% of the fishing grounds clear of ice, as was 2011 at 81%. The sea-ice ... –170 cm. In most years, there has also been a mode of smaller fish, at 50–100 cm, caught on the Ross ... . eleginoides is required to tag and release toothfish at the rate of 1 fish per tonne of green weight caught ...
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Fishery Report 2017: Dissostichus eleginoides Heard Island Australian EEZ (Division 58.5.2)
; WG-FSA-15/55). Fifty percent of fish are estimated to be mature at around 14 years of age (WG-FSA ... Islands appear to have a high level of genetic homogeneity and are distinctly different from those at ... . rhinoceratus. 28. Length–weight relationships, length-at-maturity data and estimates of abundance from ... , are reached, the vessel must not fish using that method within 5 n miles of the location for at ...
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Fishery Report 2013: Dissostichus eleginoides Crozet Island inside the French EEZ (Subarea 58.6)
catch only at Réunion Island. In 2013, a catch limit set by France of 700 tonnes was allocated to seven ... history of Dissostichus eleginoides in the French EEZ at Crozet Islands (Subareas 58.6). The IUU ... and peaked the following year at an estimated 11 760 tonnes. 10. Estimates of IUU catch in Subarea ... at a level intended to provide sufficient information (including sufficient recaptures of tagged ...
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Fishery Report 2017: Exploratory fishery for Dissostichus mawsoni in Subarea 88.1
most SSRUs in Subareas 88.1 and 88.2 have been fished at some point in time, the proportion of effort ... index of the influence of variable sea-ice conditions on the operation of a fishery at the resolution ... at 81%. The sea-ice conditions in 2017 enabled the fishery to access most of the northern fishing ... areas, there has been a broad mode at about 120–170 cm. In most years, there has also been a mode of ...
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Fishery Report: Champsocephalus gunnari South Georgia (Subarea 48.3)
. Standing stock 7. Following the procedure agreed at WG-FSA-03, estimates of standing stock were obtained ... = stratum area; AT = total area; HT = total number of hauls; and HS = number of hauls in that stratum ... ). Catches of 3+ fish dominated at Shag Rocks. Figure 4: Catch-weighted length frequencies of ... = 𝐼𝑝 ∑ 𝐼𝑖12𝑖=1 ANI 48.3 7 Figure 5: Numbers-at-length of Champsocephalus gunnari in ...
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Fishery Report: Dissostichus eleginoides and Dissostichus mawsoni South Sandwich Islands (Subarea 48.4)
operating in this fishery have been required to tag and release Dissostichus spp. at a rate of five fish ... data from 2004/05 to 2010/11, with the exception of 2008/09 for which catch-at-age data was used based ... on ageing of a random sample of otoliths collected during the 2008/09 season. Size-at-age data were ... Assessment (SC-CAMLR-XXIX, Annex 8, Appendix N). The inclusion of catch-at-age data required an additional ...
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Fishery Report: Dissostichus eleginoides and Dissostichus mawsoni (TOT) South Sandwich Islands (Subarea 48.4)
number of hauls (N) and the number of fish measured (n) in each year are given at the top of each ... to tag and release Dissostichus spp. at a rate of five fish per tonne of green weight caught. A ... incorporated catch-at-length data from 2005 to 2012, with the exception of 2009 and 2011 for which catch-at ... . Size-at-age data were also included to inform estimates of von Bertalanffy parameters within the ...
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Fishery Report: Dissostichus eleginoides and Dissostichus mawsoni South Sandwich Islands (Subarea 48.4)
-catch species, with a macrourid trigger set at 16% of the catch of Dissostichus spp., and a trigger for ... rajids set at 5% of the catch of Dissostichus spp. Figure 1: Positions of the boundaries of the ... tag and release Dissostichus spp. at a rate of five fish per tonne of green weight caught. A total ... . 7 TOT 48.4 • Tag loss rate – 0.0036. • Tagging mortality rate – 0.1, at the upper end of ...
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