Résultats de la recherche

1. Evaluation of some processing techniques applied to acoustic recordings from two krill fishing vessels

   demonstrated through a CCAMLR proof of concept, but processing is in most cases essential before any use of the ... and during surveying. We have worked with datasets covering most of the fishing season 2015/2016, one ... the automatic noise removal techniques we had at hand. We also evaluated the use of delineation and ... integration of only detected swarms for assessment of abundance, and the results are promising both for swarm ...

   Meeting Document : SG-ASAM-17/03 : Auteur(s): X. Wang, G. Skaret and O.R. Godø

2. CEMP indices 2004: analysis of anomalies and trends

   species and the environment collected by standard methods within the three Integrated Study Regions of the ... Convention Area. Each year the Secretariat updates the standardised index values and provides a summary of ... trends and anomalies in these data. In addition, developments during the intersessional period are ... Abstract:  The CCAMLR Ecosystem Monitoring Program uses indices derived from data on indicator ...

   Meeting Document : WG-EMM-04/14 : Auteur(s): Secretariat

3. Potential effects of UV-B on krill – experimental and genetic studies

   animals in the dark survived. Addition of ultraviolet-B typical of depths up to 15 m were found to ... Abstract:  We irradiated captive juvenile Euphausia superba in the laboratory with lower than ... spring surface levels of ultraviolet-B, ultraviolet-A and photosynthetically active radiation, in order ... to examine their response in terms of mortality and generalised activity. Levels of ...

   Meeting Document : WG-EMM-99/24 : Auteur(s): S. Newman, S. Jarman, S. Nicol, D. Ritz, H. Marchant, N. Elliot and A. McMinn (Australia)

4. Register of non-CEMP time-series data

   time series data that were of utility in support of the work of WG-EMM, including datasets derived from ... Abstract:  The Secretariat was tasked with maintaining a register of the wide range of non-CEMP ... South African and French seabird and pinniped monitoring programs in the southern Indian Ocean (SC-CAMLR ... -XXII, Annex 4, paragraph 2.10). Non-CEMP data of interest are listed in Tables 1-3. Author(s ...

   Meeting Document : WG-EMM-04/9 : Auteur(s): Secretariat

5. An overview of tagging skates (Rajiformes) and CCAMLR skate tagging data

   of the tagging work undertaken under the auspices of CCAMLR in the Southern Ocean with comments on ... taxonomic and identification problems, this makes the tagging studies undertaken in CCAMLR area a ... conducted in the CCAMLR area for several years now, only preliminary observations have been presented to ... tag loss and tag shedding rates in fish (with emphasis on elasmobranchs), a summary of CEFAS tagging ...

   Meeting Document : WG-SAM-13/25 Rev. 1 : Auteur(s): S.R. McCully, D. Goldsmith, G. Burt, R. Scott and J.R. Ellis (United Kingdom)

6. Preliminary analysis of seabird by-catch using CCAMLR observer data

   Dissostichus eleginoides and various factors, including the nature and use of mitigating measures as well as ... presence/absence of seabird catches and a Gamma model for the magnitude of non-zero catches. Sparsity of ... combined. Other analytical difficulties, particularly in using generalised linear models, related to the ... large number of potentially important factors, the lack of overlap between factors and the fact that ...

   Meeting Document : WG-FSA-99/28 : Auteur(s): D.J. Agnew and J.P. Croxall (United Kingdom)

7. A review and analysis of indices from CEMP data

   Abstract:  A data checking and validation process was undertaken for the data held in the CCAMLR ... examine the temporal patterns in the available time series as well as inter-site and inter-species ... comparisons. A series of questions designed to improve the understanding of the characteristics of different ... paramters is provided for discussion by the Working Group. Author(s):  Secretariat Title:  A review and ...

   Meeting Document : WG-EMM-12/62 : Auteur(s): Secretariat

8. Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia

   Abstract / Description:  Trends in mean length and maturity stage of Patagonian toothfish (Dissostichus ... water, and are concentrated to the northeast of Shag Rocks. Few spent fish were found around South ... Georgia. This concentration of large post-spawning fish may have some implications for the management of ... significant pattern of changing mean length at depth with month was detected, suggesting movement of animals ... form of the relationship between depth and mean length in August, when the mean length at shallow ... seen in the GAM. Plots of mean length by depth and time are shown in Figure 3. For this purpose mean ... mask the movements of individual fish, however, in that each point is a mean length, taken to ... length of fish in each haul (cm), against mean depth (m), month, area and vessel. The value, standard ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Auteur(s): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce

9. Fishing for toothfish using pots: results of trials undertaken around South Georgia, March–May 2000

   of crab species. The catch rate of toothfish was notably lower than that achieved in the longline ... Abstract:  During the period March to May 2000, the UK undertook trials of a pot fishing method to ... trial, the results, and discusses the commercial viability of this fishing method for toothfish ... fisheries in the CCAMLR area. While the method successfully caught D. eleginoides, there was a large bycatch ...

   Meeting Document : WG-FSA-00/23 : Auteur(s): D. Agnew, T. Daw, M. Purves and G. Pilling (United Kingdom)

10. On reproduction of Electrona carlsbergi Tåning

    has been ascertained that Electrona carlsbergi breeds in the notal zone. The ripening of females ... 150 to 650μm, and it reaches 900μm in hydrated oocytes. Maturation of ovaries is continuous, the ... Abstract:  A subject of the present study is Electrona carlsbergi from the Atlantic sector of the ... Southern Ocean. Results from histological examination of gonads are presented. From materials available it ...

    Meeting Document : WG-FSA-90/20 : Auteur(s): G.P. Mazhirina (USSR)

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