Resultados de la búsqueda
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Operational difficulties in exploratory fisheries
Abstract: F/V Shinsei Maru No.3 has been engaged in Exploratory Fisheries since 2003. Furthermore ... the vessel has conducted research activities under CM24-01 in division 58.4.4 since 2008 and provided ... significant scientific information on toothfish. For the rational utilization of toothfish resources in data ... we have exerted as much efforts as possible to complete our research plan. However, in course of ...
Meeting Document : WG-SAM-13/22 : Autor(es): N. Miyagawa, J. Okamoto, N. Akimoto and K. Hirose (Japan)
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Nine years of tag-recapture in CCAMLR Statistical Subarea 48.3 – Part II: Spatial movement and analysis
toothfish (Dissostichus eleginoides) in Subarea 48.3. In addition to providing information on tagging ... procedure, Patagonian toothfish biology, growth and local movement of Patagonian toothfish in 48.3 ... (presented in WG-SAM-14/35), it describes the spatial movements and regional connectivity in Subarea 48.3 ... successful in providing substantial information for the stock assessment and that it can give a first ...
Meeting Document : WG-FSA-14/49 : Autor(es): M. Soeffker, C. Darby and R.D. Scott (United Kingdom)
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Progress report of the CEMP Special Fund camera network in Subarea 48.1
Network in Subarea 48.1”. The project was initiated with support from the CEMP Special Fund in 2014/15 ... . The project is now fully operational. In 2016/17 data were recovered from 50 cameras covering 3 ... summaries indicate variation in phenological timing within species across sites with relatively high ... publication is currently in preparation. The cameras in the network remain in deployment and will contribute ...
Meeting Document : WG-EMM-17/16 Rev. 1 : Autor(es): J. Hinke, G. Watters, M. Santos, M. Korczak-Abshire, G. Milinevsky, V. Lytvynov, A. Barbosa, C. Southwell and L. Emmerson
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ESTIMATION OF MANAGEMENT REFERENCE POINTS CONSISTENT WITH THE CATCH TRIGGER LEVEL FOR THE ANTARCTIC KRILL FISHERY IN AREA 48
biomass reference points for the krill fishery in CCAMLR Area 48 consistent with the catch trigger level ... of F and SSB reference points for the krill stock in Area 48 consistent with the catch trigger level ... are 0.0159 (95 % CIs: 0.00750 – 0.0357) and 97.7 % SSB0 (80 % CIs: 71.6 – 135 %) respectively. In ... increases substantially with increased recruitment variability, though in absolute terms remains negligible ...
Meeting Document : WG-EMM-11/17 : Autor(es): T. Peatman, J. Moir Clark, D.J. Agnew (UK)
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Managing ecosystem uncertainty: critical habitat and dietary overlap of top-predators in the Ross Sea
Abstract: We summarize three types of data in order to increase appreciation among fishery ... managers of the close spatial and temporal ecological overlaps among top predators in the Ross Sea Shelf ... whale, though other species might also soon be exploited in the Ross Sea region. In addition to those ... two predators we also include other trophic competitors and (and in two cases predatory species ...
Meeting Document : WG-EMM-06/29 : Autor(es): Testa, J.W., Stewart, B.S., Olmastroni, S., Lyver, P., Karl, B., Eastman, J., Barton, K., Ballard, G., Toniolo, V., Wilson, P., Ainley, D.
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Detection of systematic change in Adélie penguin foraging trip duration: consequences of high inter-annual variability and usefulness of ice cover as a covariate
temporal change in CEMP Parameter A5 (penguin foraging trip duration). Two different types of systematic ... change were investigated: 1) change occurring at a constant rate after a certain point in time and 2) a ... sudden step change in parameter values from one average level to another. Modelling showed that change of ... three foraging trips each were required to detect a 35% step increase in foraging trip duration after ...
Meeting Document : WG-EMM-05/22 : Autor(es): J. Clarke, C. Southwell and L.M. Emmerson (Australia)
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Krill distribution and biomass variability within Subarea 48.3 in June 1991
in an 8 x 6 mile micropolygon, where eight consecutive hydroacoustic surveys were carried out. Krill ... were of 30 m in length, with density up to 200 g/m3. About 75% of all swarms revealed biomass to be ... less than 1 tonne. Average statistical parameters of swarms in the polygon varied insignificantly from ... 1 554 units. Krill biomass in the polygon varied spasmodically within the range from 1 091 to 6 085 ...
Meeting Document : WG-KRILL-93/35 : Autor(es): S.M. Kasatkina, E.N. Tymokhin, P.P. Fedulov and K.E. Shulgovskiy (Russia)
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GIS ‘ChartMaster’ for aquatic living resources research in Antarctic
Abstract: Geographic Information Systems (GIS) find increasing application in different fields of ... and abundance; to estimate the instant biomass in the surveyed area; to carry out the survey planning ... and designing; to carry out adaptive planning during the survey in order to localize and outline the ... for studying aquatic living resources in the Antarctic waters: The Chart of possible catches of ...
Meeting Document : WG-SAM-13/04 : Autor(es): V.A. Bizikov, S.M. Goncharov, A.V. Polyakov, S.B. Popov and A.F. Petrov (Russia)
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Skate tagging in the Heard Island and McDonald Island (Division 58.5.2) toothfish fishery up to 2013
icefish (Champsocephalus gunnari) in the Australian Fishing Zone surrounding Heard Island and McDonald ... bycatches. A tagging program has operated in these fisheries since 2001 to learn more about the movement and ... biology of these species. In the 13 years, over 12,000 skates have been tagged, with 112 recaptures, a ... in all directions. Most recaptures occurred within the first three years, with the maximum time at ...
Meeting Document : WG-FSA-13/22 : Autor(es): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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Summary of the toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2018/19
2014. Few age data are currently available after 2014. We recommend that further ageing of toothfish in ... that catch limits in the ASR be calculated following the trend analysis rules developed by WG-FSA for ... -year Chapman estimates and allowing a maximum of 20% in the catch limit for 88.2H and research block ... 882_2 are: 882H: 240 t catch and allowing a maximum of 20% change in the catch limit from 200 t ...
Meeting Document : WG-FSA-2019/12 : Autor(es): J. Devine and S. Parker