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1. Linking acoustic scattering coefficient to krill fishery data: feasibility of estimating krill abundance using fishing survey

   ecosystems and supports different levels of predators. It is also an important economic species for Antarctic ... per unit fishing area (CPUA) were studied for better understanding the feasibility of assessing krill ... abundance based on fishery data. The results showed that average catch of daytime trawls was significantly ... the maximum in 12:00- 15:00. CPUA and CPUE values reach the maximum in 12:00- 15:00. The pairwise two ...

   Meeting Document : WG-EMM-17/44 : Autor(es): T. Wang, G.P. Zhu, J.F. Tong and L.X. Xu

2. CLIMATICALLY DRIVEN FLUCTUATIONS IN SOUTHERN OCEAN ECOSYSTEMS

   Abstract:  Determining how climate fluctuations affect ocean ecosystems requires an understanding ... are propagated via the Antarctic Circumpolar Current into the South Atlantic (on time scales of more ... influence on short (less than six months) time scales. We find that across the South Atlantic sector, these ... affects the breeding success of seabird and marine mammal predators that depend on krill as food. Such ...

   Meeting Document : WG-EMM-08/P02 : Autor(es): E.J. Murphy, P.N. Trathan, J.L. Watkins, K. Reid, M.P. Meredith, J. Forcada, S.E. Thorpe, N.M. Johnston and P. Rothery

3. The ‘CAML/SCAR-MarBIN Biogeographic Atlas of the Southern Ocean’

   biogeographic results on the basis of an unprecedented amount, diversity and quality of biogeographic data. The ... of primary importance for monitoring biodiversity and detecting impacts of environmental changes ... comparative biogeographic analyses or discovering marine biodiversity hotspots. At the end of five years of ... extended by a dynamic online version on the SCAR-MarBIN portal. Contacts: co-chief editors: Dr Claude De ...

   Meeting Document : WS-MPA-11/15 : Autor(es): C. De Broyer (Belgium) and P. Koubbi (France)

4. Modelling the circumpolar distribution of Antarctic toothfish (Dissostichus mawsoni) habitat suitability using correlative species distribution modelling methods

   data. Hence, the influence of background data selection on Maxent model predictions using two ... mawsoni) habitat suitability at different spatial and temporal scales can make an important contribution ... needed to be constrained within an appropriate bathymetric range via post-processing. This resulted in an ...

   Meeting Document : WG-FSA-15/64 : Autor(es): CCAMLR Secretariat

5. Exploratory longline fishing around the Kerguelen Islands (Division 58.5.1). Description of the fishing effort; catchability and target size of Dissostichus eleginoides

   previously by trawlers in the same area. This average length is comparable for the two successive fishing ... Abstract:  During the 1990/91 and 1991/92 fishing seasons, two longliners carried out exploratory ... by trawlers. The vessel is equipped with an automatic longline baiter which has an efficiency of ... being extremely small (0,28%). Length frequency distributions (LFD) observed for Dissostichus ...

   Meeting Document : WG-FSA-92/31 Rev. 1 : Autor(es): G. Duhamel (France)

6. Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island

   Abstract:  Shipboard tracking study for krill-eating predators (penguins and female fur seals) at ... while at shallower layer (20-50 m) at night. In the offshore foraging areas krill showed no diurnal ... vertical migration, staying close to the surface throughout the day. As for body size and maturity of krill ... were totally different between the two foraging areas. The reasons why the fur seal chose offshore ...

   Meeting Document : WG-KRILL-92/27 : Autor(es): T. Ichii, H. Ishii (Japan), J.L. Bengtson, P. Boveng, J.K. Jansen (USA) and M. Naganobu (Japan)

7. Haul data analysis from the Polish krill fishery in 1997–1999

   sub-areas 48.1 and 48.2. On average, the vessel made from 7 to 9.5 hauls daily which lasted an average ... February and June from 1997 to 1999 in statistical area 48. Records from each haul were used for analysis ... of 60-70 minutes. Differences in catch rates in various areas and years were observed. The highest ...

   Meeting Document : WG-EMM-00/17 : Autor(es): E. Jackowksi (Poland)

8. By-catch of fish during a 1995/96 deep-sea longline experimental fishing cruise off the Kerguelen Islands (Division 58.5.1)

   Abstract:  An experimental longline fishing cruise targetting D. eleginoides has been realised in ... total catch in number. The grenadier Macrourus carinatus and two species of skates Bathyraja eatonii and ... -catch. The other species are rare but the predatory effect of the two big sharks Somniosus microcephalus ... and Lamna nasus on longline caught D. eleginoides must be considered as not negligeable. Geographical ...

   Meeting Document : WG-FSA-96/36 : Autor(es): Pruvost, P., Duhamel, G.

9. The BROKE-West acoustic krill biomass survey of CCAMLR Division 58.4.2

   Abstract:  This document updates plans by Australia to conduct an acoustic biomass survey for ... 11 parallel transects between 30° and 80°E. The survey design was presented to WG-EMM for their ... is intended to produce a new estimate of B0 for this Division so that a revised precautionary catch ...

   Meeting Document : WG-EMM-05/11 : Autor(es): S. Nicol, S. Kawaguchi, T. Jarvis and T. Pauly (Australia)

10. Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass

    Abstract:  Two Monte Carlo simulation models are currently available to CCAMLR for estimating ... spawning biomass, SB0. The first model has been developed specifically for krill, the krill yield model ... long-term annual yield (γ) on (i) the probability of the spawning stock being reduced below a set ... ). The krill yield model uses a biased estimate of SB0 with a method for correcting this bias in the ...

    Meeting Document : WG-EMM-97/45 : Autor(es): de la Mare, W.K., Constable, A.J.

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