Resultados de la búsqueda
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Seabird interactions with longlining operations for Dissostichus eleginoides around South Georgia, April to May 1994
-seven line sets were observed and 98 deaths of seabirds were recorded over 20 sets; no deaths occurred ... albatrosses. The average mortality rate for the 20 sets was 0.48 birds/1 000 hooks and maximum mortality 3.12 ... each species in the vicinity of the ship was recorded every 30 minutes. Of the 20 sets for which ... Georgia (sets 5 to 15) during night-time setting. These occurred in aggregations of 20 to 30 birds ... deaths of seabirds were recorded over 20 sets; no deaths occurred during hauls. The 16 sets made at ... albatrosses. The average mortality rate for the 20 sets was 0.48 birds/l 000 hooks and maximum mortality ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 111–121 : Autor(es): Ashford, J.R., J.P. Croxall, P.S. Rubilar and C.A. Moreno
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Fishery Report 2017: Dissostichus eleginoides and D. mawsoni South Sandwich Islands (Subarea 48.4)
selectivity (top row). Second row: Recruitment year-class strength 1–19 (20–26 not shown, as fixed ... fishing season (from 1 December 2014 to 30 November 2015). Fishery Report 2017 ... this fishery are presented in Figure 1 for all years in which the number of that species measured was ... and does not show a clear progression between years; small fish (<100 cm) are rare (Figure 1a). (a ...
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A two-fleet ASPM assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
become available for the years 2004 and 2005. The assessment is also generalised to allow for a second ... annual legal catch not to exceed 500 tonnes for the time being, together with encouragement that this be ... predation and its consequences are also investigated. Twenty year biomass projections under the assumption ...
Meeting Document : WG-FSA-05/58 : Autor(es): A. Brandão and D.S. Butterworth (South Africa)
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e-sc-viii-a4.pdf
... number and size of krill concentrations. 20. The Workshop developed an operational classification of ... procedures suggested above should be conducted on a trial basis and reviewed after three years. (v ... , California, USA from 7 to 13 June 1989. 30. The Convener of the study, Dr J. Beddington (UK) chaired the ... fleets tend to work in groups travelling more or less from west to east. The vessels travel together
application/pdf attached to:WS-KCPUE-89
Meeting Report : WS-KCPUE-89
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Effect of orientation on broadband acoustic scattering of Antarctic krill Euphausia superba: implications for inverting zooplankton spectral acoustic signatures for angle of orientation
and video footage from several Antarctic krill were carried out to determine the effect of animal ... Classification (CMVC) approach, using generic and animal-specific theoretical and empirical model spaces. The ... animal-specific empirical model space was best able to invert for angle of orientation. The CMVC ...
Meeting Document : WG-EMM-99/41 : Autor(es): L.V. Martin Traykovski (USA), R.L. O’Driscoll (New Zealand) and D.E. McGehee (USA)
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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 ... observed in the length density represent different age cohorts separated by one year. File: 01ashford.pdf ... classes containing fi sh 1+ and 2+ years old respectively. A much smaller peak at TL ca. 20 cm ... + 14+ 20 4 25 2 30 12 1 35 102 7 40 6 33 45 1 65 3 50 5 3 55 7 1 60 2 9 3 65 2 5 1 70 2 1 1 70+ 1 1 ... year’s translucent zone). Total length (cm) 10 20 30 40 ... 50 60 70 80 90 Fr eq ue nc y 40 30 20 10 0 ...
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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Products for human consumption from krill (Euphausia superba)
months at-30°C and one month at-20°C. Dried krill of good quality could be prepared by blanching krill in ... fish burger, it gave a bitter after taste at 10% level and bitter taste at 20% level or above. The ...
Meeting Document : WG-EMM-98/41 : Autor(es): J. Joseph, V. Muraleedharan, R. Thankamma and C.N. Ravishankar (India)
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Fishery Report: Closed fishery for Dissostichus spp. in Divisions 58.4.4a and 58.4.4b
year (or years) to recapture the tagged fish. 29. The Working Group considered that if sufficient ... the Scientific Committee and WG-FSA. 8.2 Management advice 20. In 2007/08, one Japanese-flagged ... used. A total of 117 research hauls are allocated on a 10-minute latitude 20-minute longitude grid ... is unlikely to have fully recovered to a pristine state in the six years since it was closed, any ...
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2016/17
effective tagging survival and tag detection rates, both of which have decreased in the recent years ... . This yield is higher than that specified for 2018 in CM 91-05, which states that “the total catch limit ... from the Scientific Committee in 2017, 2018 and 2019” (CM 91-05 paragraph 28 (i)). As the precautionary ... yield estimate is higher than the range specified in CM 91-05 for 2018, we therefore recommend that the ...
Meeting Document : WG-FSA-17/37 Rev. 1 : Autor(es): S. Mormede
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Bacteria and detritus: Trophic modelling of the Ross Sea
A M J a 0 5 10 15 20 25 30 35 40 La bi le D O C (g C m -2 ) J A S ... compartments between years. The vast majority of ice is assumed to melt each year so that the material in the ... % to heterotrophic microplankton (20–200 µm) and 50% to heterotrophic flagellates (2–20 µm); sea ice ... metazoa (>0.2 mm) are transferred to water column mesozooplankton (0.2–20 mm). 1.2 Detrivores ...
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