Résultats de la recherche

1. 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)

2. 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)

3. 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)

4. 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)

5. 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)

6. 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

7. 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

8. Status of the FIBEX acoustic data from the west Atlantic

   to check the consistency of krill abundance estimates derived from different survey vessels. There is ... a good level of consistency between the results from four of the vessels, Itzumi, Dr Eduardo L ... Holmberg, Odysee and Walther Herwig. While there is an error factor due to the combination of data ... collected at 50kHz (Walther Herwig survey) with data collected at 120 kHz (all other vessels), it is ...

   Meeting Document : WG-KRILL-93/31 : Auteur(s): P.N. Trathan and I. Everson (United Kingdom)

9. Preliminary analyses in support of the CEMP Review Workshop: serial correlations

   -03/24. Serial correlation in biological indices occurred in 4, 10 and 33 % of the time series at ... the time series at alpha levels of 0.05, 0.10 and 0.20 respectively. Generally, serial correlation ... Abstract:  As part of the preliminary analyses undertaken in preparation for the CEMP Review ... Workshop, the Secretariat has documented serial correlation in time series of CEMP indices. The values ...

   Meeting Document : WG-EMM-03/27 : Auteur(s): Secretariat

10. Target strength of mackerel icefish (Champsocephalus gunnari) from a scattering model

    cm, at 38 kHz. The model used computed tomography (CT) scans of fish to determine the sound speed and ... backscattered target strength (TS) of six mackerel icefish (Champsocephalus gunnari) of total length 26.8–35.0 ... density throughout the fish and simulated the complex interaction of the incident sound wave with the ... applicable to fish of length 26–35 cm. Existing in situ TS estimates are for smaller fish (16–26 cm) and ...

    Meeting Document : SG-ASAM-09/06 : Auteur(s): G. Macaulay (New Zealand)

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