Resultados de la búsqueda
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PROPERTIES OF WATER DYNAMICS AND KRILL DISTRIBUTION IN THE SOUTH SANDWICH ISLANDS SUBAREA
with increased density. These zones are located within the near-shore shelf-based SSMU and associated ... with meanders and eddy favorable for krill concentration. Here, in the cold water of the Weddell Sea ... than 150 g/m2.. Properties of the zones with increased density: these zones are associated with ... and meanders, caused by water dynamics; location of significant biomass that is formed by swarms ...
Meeting Document : WG-EMM-09/44 Rev. 1 : Autor(es): S.M. Kasatkina and V.N. Shnar (Russia)
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OTOLITH CHEMISTRY INDICATES POPULATION STRUCTURING BY THE ANTARCTIC CIRCUMPOLAR CURRENT
consistent with advective transport along the ACC. These results suggest that toothfish populations are ... the Antarctic and between some Antarctic areas. We also found evidence of four groups of fish with ... different early life chemistry: one associated with South America and three Antarctic groups showing mixing ... number of breeding members with access to spawning grounds, whereas fisheries may rely substantially on ...
Meeting Document : WG-FSA-08/P05 - Abstract : Autor(es): J.R. Ashford, C.M. Jones, E.E. Hofmann, I. Everson, C.A. Moreno, G. Duhamel and R. Williams
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Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2017 – Reflection of the recommendations by WG-EMM-16 and SC-CAMLR-XXXV
the level of protection for Antarctic toothfish and other demersal fish that explores a range of ... approach based on the updated data layer is shown. In Chapter 4 we outline the way we- at that stage ... recursive Marxan procedure and the spatial projection of data. Some other improvements that were suggested ... separate cost layers for krill and toothfish) will be reported to the CCAMLR Working Groups in 2018. Author ...
Meeting Document : SC-CAMLR-XXXVI/BG/28 : Autor(es): Delegation of Germany
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Features of spatial and temporally distribution patterns of krill flux in the Scotia Sea: some comments on the development of a krill fishery management in Area 48.
to the Scotia Sea, were a subject of study. It is clearly illustrated that the geostrophic krill ... . Calculations indicate that the krill drift through the Antarctic Peninsula area and the South Orkney area in ... the Scotia Sea may be incomparably high than the annual catch of krill and the operating catch limits ... of krill flux through the Bransfield Strait and the Drake Passage. Results show that developments of ...
Meeting Document : WG-EMM-18/21 : Autor(es): S. Kasatkina, V. Shnar and A. Malyshko
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
. Estimates of total stock biomass were computed for eight species that comprised 98% of survey nominal catch ... levels of most species appear to be unchanged or may have declined slightly since 1991. The stock of C ... . gunnari is currently extremely low, while there appears to be a strong signal of recovery for N. rossii ...
Meeting Document : WG-FSA-99/32 : Autor(es): C.D. Jones (USA), K.-H. Kock (Germany) and E. Balguerías (Spain)
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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
the literature are used to show that for some years, at distances of between 20 and 60 km from ... predator colonies catches in January and February may be up to 48% of the land-based predator consumption ... than would be expected considering the fishery as a whole. Author(s): D.J. Agnew (Secretariat) Title ...
Meeting Document : WG-KRILL-92/19 : Autor(es): D.J. Agnew (Secretariat)
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2018 International Conference on Assessing Status and Trends of Habitats, Key Species and Ecosystems in the Southern Ocean, Hobart, Tasmania, Australia
-CAMLR to participate in working groups on four themes that will be of benefit to SC-CAMLR: (1 ... IMBER and SCAR, will be holding a conference on assessing status and trends of habitats, key species and ...
Meeting Document : SC-CAMLR-XXXIV/BG/22 : Autor(es): Delegation of Australia
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VME detection thresholds: preliminary results of a study on the case of the sea pens (Pennatulacea) of the CCAMLR sector 58.4.4b
be protected. Management decisions are triggered out according to various levels. Important catches ... the sea pens, and based on the data collected in the 58.4.4b sector. The results may indicate that (1 ... ) detection thresholds may be defined considering the taxa of the VME bioindicators, (2) the detection ...
Meeting Document : WG-EMM-2019/52 : Autor(es): A. Martin and M. Eléaume
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On the possibility of practical utilisation of krill target strength TS in situ obtained on the basis of EK-500 measurements
caught with the commercial trawl RT 741448. It was shown that differences between krill length ... Abstract: Comparative analysis of krill length distribution in the echosurvey area, obtained with ... situ at the frequency of 120 kHz as measured with echosounder EK-500 (split-beam) principle). Krill was ... considerable (statistically significant). Besides, krill length estimates, obtained with acoustic method, were ...
Meeting Document : WG-EMM-98/19 : Autor(es): S.M. Kasatkina (Russia)
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Target strength of Antarctic krill
=-69db). Net samples obtained immediately before the experiment indicate that the animals were ... reproductively mature and averaged 47.44mm in length. Results agree well with recent predictions of acoustic ... scattering by elongated zooplankters. The modal value of the measurements is 6.7dB lower than that predicted ...
Meeting Document : WG-KRILL-91/13 : Autor(es): R.P. Hewitt and D.A. Demer (USA)