Resultados de la búsqueda
-
Interaction between oceanography, krill and baleen whales in the Ross Sea and adjacent waters, Antarctica in 2004/05
depth (ITEM-200). Distribution of ITEM-200 was used as background information for comparing with ... whales (Megaptera novaeangliae) mainly distributed in the Antarctic Circumpolar Current (ACC) waters with ... extended in ASW. Antarctic minke whales (Balaenoptera bonaerensis) mainly distributed in ASW and SW with a ... distributions of krill and baleen whales with ITEM-200 could yield quantitative information to identify the ...
Meeting Document : WG-EMM-07/07 : Autor(es): M. Naganobu, S. Nishiwaki, H. Yasuma, R. Matsukura, Y. Takao, K. Taki, T. Hayashi, Y. Watanabe, T. Yabuki, Y. Yoda, Y. Noiri, M. Kuga, K. Yoshikawa, N. Kokubun, H. Murase, K. Matsuoka and K. Ito (Japan)
-
A RE-APPRAISAL OF THE TOTAL BIOMASS AND ANNUAL PRODUCTION OF ANTARCTIC KRILL
production are still very uncertain. Recently, circumpolar krill databases, combined with growth models and ... abundance of 8x1014 postlarvae with biomass of 379 million tonnes (Mt). These values are based on a ... of relative krill density around Antarctica with the most recent, acoustics-derived, value for the ... the total stock, with total biomass of ~133 Mt in January-February 2000. Gross postlarval production ...
Meeting Document : WG-EMM-08/17 : Autor(es): A. Atkinson (United Kingdom), V. Siegel (Germany), E.A. Pakhomov (South Africa), M.J. Jessopp (United Kingdom) and V. Loeb (USA)
-
Diet and trophic niche of Macrourus spp. (Gadiformes, Macrouridae) in the Ross Sea region of the Southern Ocean
. Overall, amphipods were the dominant prey found in Macrourus spp. stomachs with an index of relative prey ... carnivorous. Other important prey were copepods (especially for fish with total length less than 30 cm), krill ... opisthopterus). Minor prey found in stomachs included isopods, mysids, salps and polychaetes, with rocks and ... ) were generally consistent with stomach contents. Carbon isotope results (δ13C =-24.7±0.8‰) were ...
Meeting Document : WG-EMM-12/P03 : Autor(es): M.H. Pinkerton, J. Forman, D.W. Stevens, S.J. Bury and J. Brown
-
Selectivity of standard Polish commercial trawl codends on Antarctic fishing grounds
commercial fishery, with a nominal mesh size A = 80 mm and A = 100 mm, made of double twines with a thickness ... sufficiently good level seems possible as a result of the application of webbing with permanently open meshes ... for codend construction. The most difficult matter will be preparing a codend with proper selectivity ... carried out for two types of steelon codends used in commercial fishery, with a nominal mesh size A = 80 ... mm and A = 100 mm, made of double twines with a thickness of 4.2 mm. The studies covered 6 major ... seems possible as a result of the application of webbing with permanently open meshes for codend ... construction. 4. The most difficult matter will be preparing a codend with proper selectivity properties for ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 107-142 : Autor(es): Zaucha, J.
-
Decision-making
decision-making mechanism, there may have been costs associated with it. A distinction must be drawn ... envisaged by Article XII.2 of the Convention; in accordance with Article XIII.6 of the Convention, CCAMLR ... creating, as a subsidiary body, a panel composed of independent experts to deal with the determination of ... factual matters, such as compliance with a CM, i.e. the inclusion of a vessel on the IUU vessel list 1 ...
Page : Site Section: The Organisation
-
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 : Autor(es): J. Brown, S. Gregory, K. Brigden, R. Benedet, O. Hogg, P. Brewin and L. Featherstone (United Kingdom)
-
Testing early life connectivity using otolith chemistry and particle-tracking simulations
), a species with a long pelagic larval phase, along the Antarctic Circumpolar Current (ACC) and ... compared the chemistry with simulated particle transport using a circulation model. Material laid down in ... Georgia consistent with a population boundary, and evidence of finer-scale heterogeneity between sampling ... eastern and northern shelves, indicating a single, self-recruiting population. Consistent with the otolith ...
Meeting Document : WG-FSA-10/P02 : Autor(es): J. Ashford, M. La Mesa, B.A. Fach, C. Jones and I. Everson
-
Mean circulation and hydrography in the Ross Sea sector, Southern Ocean: representation in numerical models
900m at the gyral eastern end compare favourably with float data. On-shelf model depth-averaged west ... –east flow is relatively consistent with that reconstructed from longline fishing records. These flows ... have components associated with isopycnal gradients in both light and dense waters. The climate models ... reproduce characteristic isopycnal layer inflections (‘V’s) associated with the observed Antarctic Slope ...
Meeting Document : WG-EMM-10/P13 : Autor(es): G.J. Rickard, M.J. Roberts, M.J.M. Williams, A. Dunn and M.H. Smith (2010)
-
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 : Autor(es): A. Panasiuk, A. Słomska, J. Wawrzynek, M. Konik and A. Weydmann
-
An illustrative management procedure for exploring dynamic feedback in krill catch limit allocations among small-scale management units
which simulates the “true” dynamics of the resource with tests across a wide range of scenarios for the ... here have a feedback structure, and hence are able to react and self-correct. It is important, as with ... subdivide the krill catch between SSMUs. Different MPs are then simulation tested with their performances ... average krill catches per SSMU associated with each MP. The key assumption made here is that data will be ...
Meeting Document : WG-EMM-06/28 : Autor(es): É. Plagányi and D. Butterworth (South Africa)