Résultats de la recherche

1. Some properties of diagnostics of GLMM model tuning for standardising CPUE indices in the Area 48 using the CCAMLR fishery statistics database

   with random effects (GLMM). The analysis of diagnostics of GLMM tuning indicated that the model with ... . However, there were many hauls to be interpreted as “outliers”, i.e. the points from the sample where ... of krill hauls in the CAMLR database for 1986 – 2008. It was shown that extremely high CPUE values ... catches per hour. Such high CPUE values constituted 100 – 600t/hour and more (up to 1000 t/hour). The ...

   Meeting Document : WG-EMM-11/44 : Auteur(s): P. Gasyukov and S. Kasatkina (Russia)

2. Multinational large-scale krill synoptic survey in CCAMLR Area 48 in 2019 – survey plan and protocol for consideration by SG-ASAM 2018

   of the CCAMLR 2000 survey, that was undertaken in the year 2000. The basis for comparisons will ... , Korea, China and Chile), United Kingdom, Ukraine, Korea and China, and hopefully also other nations that ... consideration by SG-ASAM. Norway has volunteered to co-ordinate the survey with other members dedicating ... personnel to specific tasks. It is requested that members who has already made commitments on ship time ...

   Meeting Document : SG-ASAM-18/07 : Auteur(s): B.A. Krafft, O.A. Bergstad, T. Knutsen, G. Skaret and G. Macauley

3. The influence of environmental variables and mitigation measures on seabird catch rates in the Japanese tuna longline fishery within the Australian Fishing Zone, 1991–1995

   fishery. In the Australian Fishing Zone (AFZ) seabirds were most likely to be caught on longlines that ... to changes of the priority that fisheries observers placed on the collection of seabird data. The ... effective. The use of these observations in combination with the analyses suggested seabird bycatch rates ... may be lowered by the use of bird lines, bait throwing machines and thawed baits. However, appropriate ...

   Meeting Document : WG-FSA-98/32 : Auteur(s): N. Brothers, R. Gales and T. Reid (Australia)

4. DEVELOPMENT OF EFFECTIVE MITIGATION TO REDUCE SEABIRD MORTALITY IN THE ICEFISH (CHAMPSOCEPHALUS GUNNARI) TRAWL FISHERY IN SUBAREA 48.3

    2001 to 0.01 birds/trawl in 2008. Evidence suggests that net weighting and good deck practices to ...  introduced for Subarea 48.3 in 2001. This provided a strong commercial incentive for industry to develop ...  several measures, including net‐binding and net weighting. Net binding has proved to be a highly effective ...  and simply applied mitigation measure and is thought to be largely responsible for the continued ...

   Meeting Document : WG-IMAF-09/15 : Auteur(s): B. Sullivan (BirdLife International), J. Clark (United Kingdom), K. Reid (Secretariat) and E. Reid (BirdLife International)

5. An assessment of longlining operations for Dissostichus eleginoides on board the Chilean-registered longliner BF Cisne Verde during March–May 1997 around South Georgia (Subarea 48.3)

   night using the Spanish double-line method with extra weights on the line and all deck-lights ... sampling method; the known number of coils laid during a night's setting operations provided the ... CPUE by numbers between catches in 1994 and 1997 despite reduction in CPUE by weight indicated that ... exclusion effects may be important in determining the catch taken by longlines. Continuing decreases in size ...

   Meeting Document : WG-FSA-97/41 : Auteur(s): Ashford, J.R., Everson, I.

6. Modelling growth of Antarctic krill: a new approach to describing the growth trajectory

   a step-growth function that combines models of instantaneous growth rate (IGR) at moult calibrated ... from direct measurements of individual pre- and post-moult krill sampled from the wild with a model of ... mixed models incorporating cubic smoothing splines. We generate a number of growth trajectories starting ... -growth VB models. Our models indicate that, allowing for shrinkage, age 6+ mean length for the Indian ...

   Meeting Document : WG-EMM-05/27 : Auteur(s): S. Candy and S. Kawaguchi (Australia)

7. An overview of a large ecosystem survey of the southwest Indian Ocean sector of the Southern Ocean (CCAMLR Division 58.4.2)

   as adopted in previous B0 surveys in the CCAMLR Area and was designed so that the results would be ... . The survey is intended to produce a new estimate of krill biomass (B0) for this Division so that a ... revised precautionary catch limit can be established by CCAMLR. The survey utilised a standardised design ... compatible with the 1996 BROKE (Baseline Research on Oceanography, Krill and the Environment) survey of the ...

   Meeting Document : WG-EMM-06/15 : Auteur(s): S. Nicol, S. Kawaguchi, T. Jarvis, G. Williams, N. Bindoff, D. Thiele (Australia), J. Schwarz (Germany), A. Davidson, S. Wright, J. Gedamke and P. Thompson (Australia)

8. Changes in the diet of the South Georgia shag Phalacrocorax georgianus at the South Orkney Islands along four consecutive years

   fish populations, the comparison of our results with historical data may be indicating a recovery of G ... and L. nudifrons. In 1997 G. gibberifrons and N. coriiceps were the species that most contributed to ... also for the South Orkney Islands in previous studies. These differences could be due to the use of ... availability. If assumed that the fisheries carried out in the area affected the structure and abundance of the ...

   Meeting Document : WG-EMM-00/8 : Auteur(s): R. Casaux and A. Ramón (Argentina)

9. Estimating the biodiversity and distribution of the northern part of the Kerguelen Islands slope, shelf and shelf-break for ecoregionalisation: benthos and demersal fish

   dominant species. Potential assemblages’ distributions will be determined in relation with environmental ... have already been studied, although a number of them are still to be sorted and studied. In 1987 and ... adults (Koubbi et al., 2001). More recently, the POKER I survey (2006), for demersal fish, POKER II (2010 ... , with 409 operations at depths ranging from 100 to 1000 m. The aim of SKALP and POKER was to investigate ...

   Meeting Document : WS-MPA-11/09 : Auteur(s): N. Améziane, M. Eléaume, P. Pruvost, G. Duhamel and Kerguelen group (France)

10. Variation or reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implication for Southern Ocean monitoring studies

    in the marine environment that may relate to prey availability and thus be influenced by commercial ... Island are not synchronised with those at South Georgia. They correlate best (and especially for ... Chinstraps, which suffered badly in 1980-81 and 1982-83) with the date of ice break-out in late spring ... . Detailed comparisons between normal and abnormal years are made 'of a range of parameters of albatross ...

    Meeting Document : WG-CEMP-87/13 : Auteur(s): J.P. Croxall, T.S. McCann, P.A. Prince and P. Rothery (United Kingdom)

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