Resultados de la búsqueda
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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
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Modelling the predator–prey interactions of krill, baleen whales and seals in the Antarctic ecosystem
Abstract: The history of human harvests of seals, whales, fish and krill in the Antarctic is ... krill surplus in the mid 20th Century is described, and the information on population and trend levels ... ) species. The model commences in 1780 (the onset of fur seal harvests) and distinguishes the Atlantic ... /Indian and Pacific sectors in view of the much larger past harvests in former. A reference case and five ...
Meeting Document : WG-EMM-05/34 : Autor(es): M. Mori and D.S. Butterworth (South Africa)
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Summary report of the International Fishers’ Forum – Solving the Incidental Capture of Seabirds in Longline Fisheries
Abstract: This paper reports on a 4 day forum for fishers held in New Zealand in 2000, to ... exchange information and develop practical measures to minimise incidental capture of seabirds in longline ... will be held in Hawaii in late 2002. Author(s): CCAMLR Observer (New Zealand) Title: Summary report ... of the International Fishers’ Forum – Solving the Incidental Capture of Seabirds in Longline ...
Meeting Document : SC-CAMLR-XX/BG/19 : Autor(es): CCAMLR Observer (New Zealand)
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Review of the technical recommendations for the Patagonian toothfish fishery in order to minimize by-catch
Abstract: The Patagonian toothfish fishery in the EEZ of Kerguelen (division 58-5-1) and Crozet ... Territories (TAAF). The TAAF relies on advice from several scientific institutions, in particular from the ... recommendations in order to minimize fish by-catch of fish that are not targeted by the fishery campaign of 2011 ... obtained with the enforcement of these measures are analyzed, some quantified targets will be defined in ...
Meeting Document : SC-CAMLR-XXX/BG/10 : Autor(es): Delegation of France
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PENGUIN RESPONSES TO CLIMATE CHANGE IN THE SOUTHERN OCEAN
Abstract: Penguins are adapted to live in extreme environments, but they can be highly sensitive ... , oceanography and critical habitats. For example, in the southwest Atlantic, the distributional range of the ice ... and chinstrap penguins have expanded their range southward. In the Southern Ocean, the El Niño ... changes in the marine ecosystem, ultimately affecting penguins. The interaction between these modes is ...
Meeting Document : WG-EMM-09/P09 : Autor(es): J. Forcada and P.N. Trathan
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LENGTH AND AGE AT SPAWNING OF ANTARCTIC TOOTHFISH DISSOSTICHUS MAWSONI IN THE ROSS SEA
male Antarctic toothfish Dissostichus mawsoni from fish sampled in the Ross Sea spanning the 2000-2009 ... spawn in a given year and is therefore appropriate to evaluate spawning stock biomass relative to stock ... vitellogenic phase over at least a 6–12 month period, resulting in a developed batch of oocytes accumulating at ... ) by length. Evidence of skip spawning by females results in a right-shifted ogive, increasing the ...
Meeting Document : WG-FSA-09/37 : Autor(es): S.J. Parker and P.J. Grimes (New Zealand)
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Models of Antarctic marine ecosystems in support of CCAMLR and IWC: background
is currently in draft form open to comment and is being developed to provide an introduction to the ... to the use of ecosystem models in CCAMLR and the IWC and a history of the developmental work in those ... that need to be considered in parameterising a model, providing input data for those models and for ... addressing uncertainties in this process. Lastly, it summarises the modelling platforms being developed in ...
Meeting Document : CCAMLR-IWC-WS-08/03 : Autor(es): Constable, A.