Résultats de la recherche

1. Quantifying habitat use in satellite-tracked pelagic seabirds: application of kernel estimation to albatross locations

   chick rearing period of the breeding cycle at South Georgia. At this time the activity range of these ... Abstract:  We develop a new approach to quantifying habitat use within the foraging ranges of ... satellite-tracked seabirds. We applied kernel estimation techniques to 167 days (3738 locations) of data ... . In contrast, kernel estimation reveals that the main foraging areas of these two sympatric ...

   Meeting Document : WG-FSA-99/19 : Auteur(s): A.G. Wood (United Kingdom), B. Naef-Daenzer (Switzerland), P.A. Prince and J.P. Croxall (United Kingdom)

2. Broadbandwidth total target strength measurements of Antarctic krill (Euphausia superba) from reverberation in a cavity

   Abstract:  Total scattering cross-sections (st) of Antarctic krill, Euphausia superba, were ... strengths (??10log(??4?) t TTS), were measured from groups of 57 to 1169 krill (average standard length ... = 31.6 mm; standard deviation = 6.6 mm), at the Cape Shirreff field station, Livingston Island ... omnidirectional emitter into one of three glass carboys containing groups of krill swimming in 9.3, 19.3 or 45.9 l ...

   Meeting Document : WG-EMM-02/49 : Auteur(s): D.A. Demer and S. G. Conti (USA)

3. Effects of recruitment variability and natural mortality on Generalised Yield Model projections and the CCAMLR Decision Rules for Antarctic krill

   . At the higher catches of the precautionary catch limit, populations based on recruitment vectors from ... ;vector of recruitments" input option to simulate the population dynamics of krill in the Antarctic ... Peninsula region (Subarea 48.1) under various assumptions. The annual proportions of krill less than 36 mm ... in length to the total captured in AMLR net samples in four sampling regions of the Antarctic ...

   Meeting Document : WG-EMM-12/26 : Auteur(s): D. Kinzey, G. Watters and C. Reiss (USA)

4. Development of environmental indices F1, F3 and F4

   at or near CEMP sites, and the dynamics of penguins during the breeding season are discussed. Author ... Abstract:  The development of CEMP indices derived from visual data (indices F1, F3 and F4 ... ), automatic weather stations and satellite imagery is explored with reference to the CEMP sites at Edmonson ... Secretariat) Title:  Development of environmental indices F1, F3 and F4 Approval:  Approved ...

   Meeting Document : WG-EMM-00/27 : Auteur(s): S. Olmastroni and S. Corsolini (Italy), K. Kerry and J. Clarke (Australia) and D. Ramm (CCAMLR Secretariat)

5. Exploratory analysis of acoustic data from the Ross Sea

   is a major limitation that could only be avoided with the use of an acoustic system deployed at depth ... Abstract:  This report presents results from a pilot study to determine the feasibility of ... analyses focused on the subset of acoustic data collected when setting longlines so acoustic recordings ... , corresponding to 2–4 nmi. Data quality was generally good. Of the 84 line recordings, 68 were considered ...

   Meeting Document : WG-FSA-SAM 03/9 : Auteur(s): R.L. O’Driscoll and G.J. Macaulay (New Zealand)

6. Descriptive analysis of mesopelagic backscatter from acoustic data collected in the Ross Sea

   Abstract:  This report presents results from a pilot study to investigate the use of acoustics to ... quantify spatial and vertical distribution of acoustic backscatter in the upper 1000 m of the water column ... . There were clear spatial patterns in the amount and type of mesopelagic backscatter observed. There was ... much more backscatter in the upper 1000 m and a wider variety of mark types north of 67° S. Common mark ...

   Meeting Document : WG-EMM-06/11 : Auteur(s): R.L. O’Driscoll (New Zealand)

7. Descriptive analysis of acoustic data collected during the 2003 exploratory fishery for toothfish in the Ross Sea

   of the spreading of the acoustic beam, the acoustic deadzone at these depths is relatively large ... Abstract:  This report presents results from a pilot study to determine the feasibility of ... . These analyses focused on the subset of acoustic data collected when setting longlines so acoustic ... recordings could be compared with longline catches. Data quality was generally good. Of the 84 line ...

   Meeting Document : WG-FSA-03/28 : Auteur(s): R.L. O’Driscoll and G.J. Macaulay (New Zealand)

8. Terra Nova Bay: hot spot in marine and terrestrial biodiversity, knowledge and functioning of the ecosystem

   Abstract:  The Terra Nova Bay area is particularly valuable for science due to the presence of ... unique marine and terrestrial flora and fauna and the high diversity at both species and community level ... . From an oceanographic perspective, the area is characterised by the occurrence of the Terra Nova Bay ... polynya, a crucial region for the formation of the High Salinity Shelf Water (HSSW), formed by the ...

   Meeting Document : WS-MPA-11/14 : Auteur(s): S. Torcini, M. Vacchi, S. Aliani, G. Bavestrello, A. Bergamasco, G. Budillon, B. Calcinai, G. Catalano, R. Cattaneo-Vietti, C. Cerrano, M. Chiantore, S. Corsolini, R. Bargagli, A. Dell’Anno, G. di Prisco, G. Fusco, S. Focardi, L. Gugliemo, G. Lauriano, P. Luporini, O. Mangoni, S. Olmastroni, F. Pezzo, E. Pisano, L. Ghigliotti, P. Povero, S. Puce, A. Pusceddu, E. Rusciano, M. Saggiomo, V. Saggiomo, M.C. Gambi, S. Schiaparelli, G. Spezie, C. Verde, P. Del Negro (Italy)

9. Development of the acoustic survey database

   , conductivity at depth, density estimate etc). The development of the trawl survey components has been reported ... submitted to CCAMLR. This database is ‘event-driven’ – i.e. each survey can be characterized by a series of ... events (eg trawl, CTD, acoustic etc) and each event has a set of measurements (eg amount caught ... developments to date, WG-FSA’s Subgroup on Fisheries Acoustics (WG-FSA-SFA) has discussed the possibility of ...

   Meeting Document : WG-EMM-04/18 : Auteur(s): Secretariat

10. Southern royal albatross Diomedea epomophora census on Campbell Island, 4 January–6 February 1996, and a review of population figures

    Abstract:  A census of breeding Southern Royal Albatross was undertaken at Campbell Island during ... the period 4 January to 6 February 1996 of the 1995-96 breeding season. A total of 7787 occupied nests ... was counted. Comparisons of different field census techniques and a measure of the rate of egg loss ... January-February 1995, much of which could be explained by some larger survey blocks being counted more ...

    Meeting Document : SC-CAMLR-XVII/BG/13 : Auteur(s): Delegation of New Zealand

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