Résultats de la recherche

1. SKATE DIET AT SOUTH GEORGIA INDICATES BENTHIC HABIT OF KRILL

   . Preferred prey included fish (particularly for larger individuals) and Antarctic krill, as well as amphipods ... , polychaetes and other benthic fauna. The Antarctic skate appears to be an opportunistic predator and the clear ... South Georgia, Southern Ocean. The diet of A. georgiana varied with skate size and between years ...

   Meeting Document : WG-FSA-09/15 : Auteur(s): C.E. Main and M.A. Collins (United Kingdom)

2. TASO-08

   Doc Number Title TASO-08/01 Agenda for the Ad Hoc Technical Group on At-Sea Operations (St Petersburg ... Full Name:  Ad Hoc Technical Group for At-Sea Operations Location:  St Petersburg, Russia Date(s ... ):  Saturday, 19 July 2008 to Sunday, 20 July 2008 Submissions Due:  Saturday, 5 July 2008 Meeting documents ... , Russia, 19 and 20 July 2008) TASO-08/02 List of participants TASO-08/03 List of documents TASO-08/04 ...

   Meeting

3. A post-processing method to remove interference noise from acoustic data collected from Antarctic krill fishing vessels

   data has been recognised as an important way to estimate the distribution and relative abundance of ... the utility of fishing-vessel-based acoustic data for a range of objectives. File:  Wang et al.pdf ... degraded by interference noise due to the lack of synchronisation of the acoustic instruments found on some ... of the vessels. A simple method to remove significant interference noise was introduced based on ... 30 Wang et al. Figure 7: Frequency distribution of mean Sv (a) and variation of MVBS (b) for 20 ... of an attenuated signal may be compensated for by using the strength of the seabed return signal ... by fishing vessels. For example, the Chinese krill fishing vessel Fu Rong Hai was found to have two ... et al., 2014). For krill with length ranging from 30 to 60 mm, the target identification window is ...

   Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 17–30 : Auteur(s): Wang, X., J. Zhang and X. Zhao

4. Acoustic estimates of krill biomass in the Elephant Island area: 1981–1993

   years 1981 to 1993 (with the exception of 1982 and 1986). Estimates for 1981 to 1991 are based on ... / Description:  Acoustic estimates of krill biomass in the vicinity of Elephant Island are presented for the ... previous reports adjusted for the recently proposed definition of krill target strength (Greene et al ... density over the 13-year period were 1 703 x  103 tonnes and 53.2 g/ 2. File:  01hewitt-demer.pdf ... surveys (30 mm and 41 mm). Klindt's biomass estimate for the 1985 survey may be adjusted by a factor ... from the two largest of the four surveys described by Hewitt and Demer (1993). Biomass estimates for ... vicinity of Elephant Island are presented for the years 1981 to 1993 (with the exception of 1982 and 1986 ... ). Estimates for 1981 to 1991 are based on previous reports adjusted for the recently proposed definition of ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 1–5 : Auteur(s): Hewitt, R.P. and D.A. Demer

5. Status of the FIBEX acoustic data from the West Atlantic

   Herwig. While there is an error factor due to the combination of data collected at 50 kHz (Walther Herwig ... are consistent with the other surveys. The authors can find no explanation for this difference. File ... apply an empirical correction based on the differences found in the field for the MVBS value found at ... as tonnes n mile-' with an integration interval of 9 760 m; however, for the re-analysis carried ... substantial overlap in the two survey areas and an almost complete overlap in their timing, i.e. February ... of the vessels, Itzurni, Dr Eduardo L. Holmberg, Odissey and Walther Herwig. While there is an error ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 35–48 : Auteur(s): Trathan, P.N. and I. Everson

6. Letter from the Convener

   ). (iv) A review of progress on an integrated stock assessment for krill (SC-CAMLR-XXXII, paragraph 3.32 ... considerable amount of time over the past two years in developing research plans for the data-poor fisheries ... Members, which is the purpose of this letter. There are two standing agenda items for WG-SAM (SC-CAMLR ... on Statistics, Assessments and Modelling (WG-SAM) scheduled to begin meeting on Monday, 30 June 2014 ...

   Document : Site Section: Meetings

7. Volume 12: CCAMLR. 2000. Statistical Bulletin, Vol. 12 (1990–1999). CCAMLR, Hobart, Australia.

   ended on 30 June 1990). The abbreviated notation for split-years used in the title and figures refers ... Bulletin covers data for the ten years from 1 July 1989 to 30 June 1999. Figures in Section D cover a 5 ... from I July to 30 June of the following year (e.g. the split-year 1989/90 started on 1 July 1989 and ... /divisions are plotted for species that have a total catch in anyone year of more than 2 000 tonnes. 4 ...

   Document : Site Section: Publications

8. Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

   results finding no significant differences between the years. Von Bertalanffy parameters for the pooled ... –at–maturity (10.6 years, 13.6 years) are presented for males and females respectively, using a ... purpose of analyzing the otoliths to generate more accurate age estimates for this species. Intensive ... dataset with unsexed juveniles are L? 76.12, K 0.065 and t0-0.159 for males and L? 92.03, K 0.055 and t0 ...

   Meeting Document : WG-FSA-05/20 : Auteur(s): P.M. Marriott, M.J. Manning and P.L. Horn (New Zealand)

9. Net sample validation of acoustic techniques used to identify and size Antarctic krill

   collected with an RMT8. Around 80 % of the targets thought to be krill on the basis of their appearance on ... species groups has been attempted using differences in echo strength at two acoustic frequencies (ΔMVBS ... echo-charts were also identified as krill on the basis of their difference in backscatter at 38 and 120 ...

   Meeting Document : WG-EMM-97/46 : Auteur(s): Watkins, J.L., Brierley, A.S.

10. A way forward in the multivariate analysis of Antarctic predator, prey and environment indices: predator-environment interactions at Seal Island

    Abstract:  The CCAMLR Ecosystem Monitoring Programme has two aims: to detect changes in critical ... , which effectively predicts chinstrap success given sea-ice data with an R2 of 0.914. This model is then ... used to propose a method of distinguishing between effects of environmental variation and harvesting on ...

    Meeting Document : WG-EMM-96/27 : Auteur(s): Agnew, D.J., Watters, G., Hewitt, R.

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