Résultats de la recherche
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Multiyear changes in distribution and abundance of Salpa thompsoni in the Western Antarctic Peninsula region
characterized by a circumpolar distribution and its appearance is clearly associated with the occurrence of the ... analyses, coupled with environmental data, obtained both during sampling and from satellite data, allowed ... to prove that the distribution of salps was significantly correlated with water temperature and ... suggest that with climatic changes, such as temperature increase and reduction of sea-ice cover, the ...
Meeting Document : WG-EMM-16/75 : Auteur(s): A. Panasiuk, A. Słomska, J. Wawrzynek, M. Konik and A. Weydmann
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Results from the groundfish survey conducted in CCAMLR Subarea 48.3 in January/February 2011
between the 27th January and 6th February 2011. 87 random hauls were completed, with good coverage across ... mean biomass of 49,353 tonnes was estimated for mackerel icefish, with a lower 1-sided 95% CL of 31,373 ... tonnes. Euphausiidae was the dominant prey item in the mackerel icefish diet with increased dietary ... Patagonian toothfish were greater than in 2009 and 2010, with a large haul of 40-45cm fish (1.6t) around Shag ...
Meeting Document : WG-FSA-11/29 : Auteur(s): J. Brown, S. Gregory, K. Brigden, R. Benedet, O. Hogg, P. Brewin and L. Featherstone (United Kingdom)
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Oceanography of the South Georgia and South Orkney Islands regions using high-resolution models
the results of preliminary analyses. The models are regional applications of NEMO with a ~3 km ... productive, supporting large colonies of higher predators, and with a history of commercial exploitation ... tides, atmospheric forcing from reanalysis, glacial melt, and with sea ice processes incorporated using ... LIM3. The models have been used to generate 20-year hindcast time series of oceanographic flows and ...
Meeting Document : WG-EMM-17/30 : Auteur(s): E. Young, E. Murphy and P. Trathan
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Progress report on the joint research for Dissostichus spp. in Subarea 88.3 by the Republic of Korea and New Zealand in 2018/19
distribution with modes near 70 cm and 150–160cm. Proportions for female maturity stages 1, 2, and 3 were ... similar in research blocks 883_1, 883_3 and 883_4 with the range of 0.1110–0.1571, but much lower in ... research block 883_5, 883_P8, 883_P9 with the range of 0–0.0185. Tagging rate and tag overlap in Subarea ... were observed with stage 1 and 2. Otolith, stomach contents, gonad, fin and muscle samples were ...
Meeting Document : WG-SAM-2019/11 : Auteur(s): Delegations of the Republic of Korea and New Zealand
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Results of fish stock assessment survey, South Georgia region, November - December 1986
/85 year classes. Coefficients of variation ranged from 67.9% (Notothenia squamifrons) to 12.6% (C ... probably represent age 3-5 fish, with relatively few age 6-8 year olds (25-29 cm). The peak at 37-38 cm ... poor recruitment in year classes before 1976;77. This would be consistent with reports of no ... (Table 2). Mean lengths of 16.6, 32.4 and 48.8 cm were observed from South Georgia strata 1-3, with ... stratum increased with depth from 22.4 to 26.5 and 27.5 cm in strata 1-3 (South Georgia), respectively ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 143-183 : Auteur(s): Gabriel, W.L.
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Fishery Report: Dissostichus eleginoides (TOP) Crozet Island inside the French EEZ (Subarea 58.6)
year are given at the top of each panel. 2. Stocks and areas 5. A tagging experiment (with 1 fish ... fluctuated to the present with a maximum of 0.19 kg/hook in 2011. Effort by month and year from the ... Throughout this report the CCAMLR fishing season is represented by the year in which that season ended, e.g ... following year, the data reporting period used in this report is the CCAMLR season. FISHERY REPORT ...
Document : Site Section: Publications
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Fishery Report 2017: Dissostichus eleginoides and D. mawsoni South Sandwich Islands (Subarea 48.4)
fish are double-tagged with tag shedding estimated at 0.0064 year–1 and an additional post-tagging ... A3: Dissostichus eleginoides in Subarea 48.4: MCMC-estimated recruitment with fixed year-class ... have been tagged with 77 recaptured (Table 3a) and 3 583 D. eleginoides have been tagged with 364 ... . Table 3: Number of individuals of (a) Dissostichus mawsoni, and (b) D. eleginoides tagged in each year ...
Document : Site Section: Publications
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Movement and growth of tagged Dissostichus eleginoides around South Georgia and Shag Rocks (Subarea 48.3)
groundfish surveys and CCAMLR observer trips. This includes about 900 that have been injected with either ... at 42°S after about one year at liberty from some opportunistic tagging carried out on a toothfish ... experimental pot fishing in 2000 and 2001, and have been at liberty from one to two years. Four fish were ... around the island consistent with the direction of prevailing currents around the islands. Figure 3 ... groundfi sh surveys and CCAMLR observer trips. This includes about 900 that have been injected with ... seas area on the Patagonian Shelf at 42°S after about one year at liberty from some opportunistic ... . Crew members who fi nd and report tags to observers are rewarded with £5 or its equivalent per tag ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 101–111 : Auteur(s): Marlow, T.R., D.J. Agnew, M.G. Purves and I. Everson
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Fishery Report 2018: Dissostichus eleginoides and D. mawsoni South Sandwich Islands (Subarea 48.4)
growth following tagging. All fish are double-tagged with tag shedding estimated at 0.0064 year–1 and an ... recruitment with fixed year-class strength for 2009–2015. 13 Figure A4: Dissostichus ... have been tagged with 77 recaptured (Table 3a) and 3 583 D. eleginoides have been tagged with 364 ... maintain SSB above 50% of B0 over the next 35 years with 50% probability. MCMC-estimated recruitment and ...
Document : Site Section: Publications
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Advances in the use of airborne aerial survey techniques to estimate krill-eating penguin populations in Area 48
Abstract: In this paper we provide WG-EMM with an update on aerial survey methods used to provide ... over the coming years and we will provide similar updates at regular intervals. Author(s): P.N.Trathan ...
Meeting Document : WG-EMM-14/05 : Auteur(s): P.N.Trathan, A.J. Fox, N. Ratcliff and P.T. Fretwell (United Kingdom)