Resultados de la búsqueda
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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 ... the shelf. Catch-weighted length frequencies of mackerel icefish indicated that 3+ sized fish ... 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 ...
Meeting Document : WG-FSA-11/29 : Autor(es): 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 ... interactions with predators and availability to fisheries. Insight from such studies will help inform WG-EMM ...
Meeting Document : WG-EMM-17/30 : Autor(es): 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 : Autor(es): 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 ... (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 ... ages 3 and 4 (1983/84 and 1982/83 year classes), while the shoulder at 19 cm would correspond to fish ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 143-183 : Autor(es): 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 ... and areas ......................................................................... 3 3. Summary ... . Fishing trials with trawlers (before 1979 by Japanese exploratory fishing and by French trawlers, after ...
Document : Site Section: Publications
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Fishery Report 2017: Dissostichus eleginoides and D. mawsoni South Sandwich Islands (Subarea 48.4)
have been tagged with 77 recaptured (Table 3a) and 3 583 D. eleginoides have been tagged with 364 ... the next 35 years with 50% probability. MCMC-estimated recruitment and trace plots are shown in ... . Table 3: Number of individuals of (a) Dissostichus mawsoni, and (b) D. eleginoides tagged in each year ... fish are double-tagged with tag shedding estimated at 0.0064 year–1 and an additional post-tagging ...
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 ... experimental pot fishing in 2000 and 2001, and have been at liberty from one to two years. Four fish were ... at 42°S after about one year at liberty from some opportunistic tagging carried out on a toothfish ... 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 ... released during experimental pot fi shing in 2000 and 2001, and have been at liberty from one to two years ... . 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 : Autor(es): 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)
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 ... 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 ...
Document : Site Section: Publications
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Lista de las medidas de conservacion vigentes en la temporada 1991/92
perpendicular to the plane of the net. 3. The gauge shall be inserted into the mesh opening either with a ... . The inspector shall measure one series of 20 meshes, selected in accordance with Article 3, inserting ... accordance with Article 3 shall be measured. The mesh size shall then be recalculated in accordance with ... potential yield; 4. The information provided in accordance with paragraph 3, together with any other ...
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 : Autor(es): P.N.Trathan, A.J. Fox, N. Ratcliff and P.T. Fretwell (United Kingdom)