Search results
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Winter and summer foraging location of Adélie penguins from Mawson, Davis and Casey
with a diet which is largely comprised of the fishery target species Antarctic krill (Euphausia superba ... ). Being central-place foragers during the breeding season, their foraging range is restricted by the ... foraging locations is relevant to WG-EMM in terms of understanding the spatial and temporal scales of ... influence on CEMP parameters as well as the management of the Southern Ocean marine living resources in ...
Meeting Document : WG-EMM-13/08 : Author(s): L. Emmerson, N. Kokubun and C. Southwell (Australia)
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Revised research plan for toothfish in Division 58.4.4b by Shinsei maru No. 3 in 2015/16
. We reset the revised research blocs drawn along the outer margin of grids because the previous block ... had not contained the eastern grids accurately, and recalculated the sea bed area sizes (600-1 800 m ... ) using the same GIS software (GEBCO_08 Grid, version 20100927) as the latest CCAMLR Statistical Bulletin ... . The estimated stock size in block 58.4.4b_1 was 510, 336 and 333 tonnes in CPUE analogy method ...
Meeting Document : WG-FSA-15/20 : Author(s): Delegation of Japan
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Synopsis of CEMP and non-CEMP predator parameters from Admiralty Bay and Cape Shirreff, South Shetland Islands, Antarctica: their relationships to krill abundance and ice cover, 1978–2003
, South Shetland Islands, Antarctica were analysed to assess the characteristics of the individual ... parameters, and their relationships to krill abundance and ice cover indices for the period 1978-2003 ... . Results of the analyses are presented in a series of 6 Tables, following the outline of a Draft paper by ... K.Reid for similar analyses at South Georgia. The tabular data include: 1. Table 1. A list of the penguin ...
Meeting Document : WG-EMM-03/61 : Author(s): W.Z. Trivelpiece (USA), K. Salwicka (Poland) and S.G. Trivelpiece (USA)
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Measurements of sound-speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru
Abstract: In order to calculate the target strength of Antarctic krill (Euphausia superba) using ... -density contrasts between the animal and the surrounding water are required. Sound-speed and mass-density ... of krill were measured during the Antarctic surveys conducted by the Japanese RV Kaiyo Maru in 1999 ... density bottle method. The mean total length and the mean mass-density contrast were 43.5mm and 1.028 near ...
Meeting Document : WG-EMM-08/56 Rev. 1 : Author(s): Y. Takao, H. Yasuma, R. Matsukura, K. Amakasu and M. Naganobu (Japan)
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Variability in krill length distribution in 48.1 derived from data collected by scientific observers
Abstract: Information on the length distribution of krill in the catch, and the spatial and ... temporal patterns of krill length in the population is essential to assess krill population status and ... dynamics, and the impacts of a fishery on the stocks. Here, we use generalised additive models (GAM) and ... generalised additive mixed models (GAMM) to evaluate the spatial and temporal patterns of length in Antarctic ...
Meeting Document : WG-EMM-15/16 : Author(s): P. Ziegler, S. Kawaguchi D. Welsford and A. Constable (Australia)
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CCAMLR Survey Database: development during 2002
Abstract: Considerable progress was made on the survey database in early 2002. However, this work ... had to be postponed because of a higher priority need for developing a web-based data system for the ... Catch Documentation Scheme. Work on the survey database in 2002 included: • revision of the database ... model; • documentation of the database specifications; • development of data uploading routines ...
Meeting Document : WG-FSA-02/10 : Author(s): Secretariat
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INFORMATION ON SPAWNING AND FECUNDITY OF ICEFISH CHIONOBATHYSCUS DEWITTI
Abstract: On the basis of the analysis of the biological material collected by one of the authors ... during fishery for Antarctic toothfish from 2002 till 2008 on different grounds of the Antarctic Zone ... (Collaboration Sea, D’Urville Sea, Ross Sea and Amundsen Sea), the assumption was advanced regarding the long ... spawning period of deep-water icefish Chionobathyscus dewitti during spring-and-summer period of the ...
Meeting Document : WG-FSA-09/13 : Author(s): V. Prutko and D. Chmilevsky (Russia)
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Interactions between longline vessels and seabirds in Kerguelen waters and a method to reduce seabird mortality
Abstract: In recent years, a new longline fishery for the fish Dissostichus eleginoides has ... developped in the vicinity of South Georgia and Kerguelen islands, two internationally important breeding ... areas for procellariiform birds. Attractiveness of this fishery for seabirds, together with the ... activity in Kerguelen waters in February 1994. Between 100 and 600 seabirds were always observed behind the ...
Meeting Document : WG-IMALF-94/12 : Author(s): Yves Cherel, Henri Weimerskirch and Guy Duhamel (France)
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RESEARCH PLAN FOR TOOTHFISH BY SHINSEI MARU NO. 3 IN 2008/09
Abstract: A proposal to undertake scientific research in CCAMLR Subarea 58.4.4 over the 2008-2009 ... seasons is introduced. The first survey has been undertaken by a commercial fishing vessel, Shinsei Maru ... No.3, in 07/08 season covering the whole SSRUs (Small Scale Research Units). In the course of this ... composition of toothfish, and by-catch species, has been obtained. However, the information obtained by just ...
Meeting Document : WG-FSA-08/39 : Author(s): Delegation of Japan
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Ideal survey patterns: an example of using a simulated world
criteria. The shot selection criteria can be either that locations of known good quality are preferentially ... selected or that locations are selected at random. The landscape and fishery are simulated in a spatially ... explicit Monte Carlo model and the use of such models to study these issues is considered along with their ... interest about the fished population? If and when can the catch/effort data be used as a measure of the ...
Meeting Document : WG-FSA-01/75 : Author(s): I.R. Ball and A.J. Constable (Australia)