Résultats de la recherche

1. A brief summary of Japanese fishing on the Antarctic krill, 1972/73 – 1982/83

   A brief summary of Japanese fishing on the Antarctic krill, 1972/73 – 1982/83 ...

   Meeting Document : SC-CAMLR-III/INF. 09 : Auteur(s): Japanese Delegation

2. Decadal trends in abundance, size and condition of Antarctic toothfish in McMurdo Sound, Antarctica, 1972–2011

   then decreased. Fish length positively correlated with Ross Sea ice extent in early spring, a ... Dissostichus mawsoni in McMurdo Sound, Antarctica, 1972–2011. Data on total length, condition and catch per ... the Ross Sea shelf. Fish length and condition increased from the early 1970s to the early 1990s and ... the study area. Fish condition positively correlated with the amount of open water in the Ross Sea ...

   Meeting Document : WG-FSA-12/P04 : Auteur(s): D.G Ainley, N. Nur, J.T Eastman, G. Ballard, C.L Parkinson, C.W Evans and A.L. DeVries

3. Variations in condition indices of mackerel icefish at South Georgia from 1972 to 1997

   subject to commercial fishing since the early 1970s. They are known to feed predominantly on krill. An ... icefish at South Georgia from 1972 to 1997 Approval:  Approved Secretariat Workflow Status:  Content ...

   Meeting Document : WG-EMM-00/44 : Auteur(s): I. Everson (United Kingdom) and K.-H. Kock (Germany)

4. Variations in condition indices of mackerel icefish at South Georgia from 1972 to 1997

   indices of mackerel icefish at South Georgia from 1972 to 1997 Approval:  Approved ...

   Meeting Document : WG-FSA-99/50 : Auteur(s): I. Everson (United Kingdom) and K.-H. Kock (Germany)

5. Foraging trip duration in male and female macaroni penguins at Bouvetøya

   Abstract:  The CEMP Standard Methods for monitoring foraging trip duration in Macaroni Penguins ... , while the females make frequent foraging trips. We analysed data from 17 males instrumented with VHF ... of the creching period. The first trip usually lasted several nights, whereas the subsequent trips ... foraging trip duration of either sex as a function of date were recorded during the creching period. Female ...

   Meeting Document : WG-EMM-98/28 : Auteur(s): F. Mehlum, K. Isaksen and V. Bakken (Norway)

6. Stability of trip selections for the assessment of Antarctic toothfish in the Ross Sea

   datasets were selected comprising trips with high (above median) rates of recovery of previously released ... tags, and/or where tags released on the trip were subsequently recaptured at a high rate. These trips ... were used to define a range for various data quality metrics considered to be informative with respect ... to tagging data. Other trips with data quality metric values within these ranges were added to the ...

   Meeting Document : WG-FSA-10/26 : Auteur(s): D.A.J. Middleton (New Zealand)

7. Detection of systematic change in Adélie penguin foraging trip duration: consequences of high inter-annual variability and usefulness of ice cover as a covariate

   three years or alternatively, with equal power, a 3.75% annual increase in trip duration after 12 years ... Abstract:  Power analyses were carried out using a 12 year data set from the Béchervaise Island ... Adélie penguin colony with the aim of determining minimum sample sizes required to detect systematic ... temporal change in CEMP Parameter A5 (penguin foraging trip duration). Two different types of systematic ...

   Meeting Document : WG-EMM-05/22 : Auteur(s): J. Clarke, C. Southwell and L.M. Emmerson (Australia)

8. An examination of variance and sample size for female Antarctic fur seal trip durations

   sample size in detecting differences between two years of fur seal trip duration data. Female foraging ... trip duration for the first six trips to sea for 1997/98 (n = 30) and 1998/99 (n = 31) at Cape Shirreff ... , Livingston Island was used to calculate minimum sample sizes necessary to detect differences from year to ... year. A bootstrap function was used to examine the effect of sample size on variance. Currently CCAMLR ...

   Meeting Document : WG-EMM-99/45 : Auteur(s): M.E. Goebel (USA)

9. A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries on krill predators

   fishery. 3. The biomass of krill appropriate for the predators (and the fishery) fluctuates from one year ... population level effects. Here, we present for. the first time a model at the level of the foraging trip for ... indirect effects of the fishery on penguin reproduction and survival. As with all models, there is ... krill catch, with slope 1.5. Reductions in adult survival are also linear functions of krill catch, but ...

   Meeting Document : WG-EMM-96/20 : Auteur(s): Switzer, P.V., Mangel, M.

10. A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries on krill predators

    Abstract:  We present a model at the level of the foraging trip for the effects of a fishery on ... biomass of krill appropriate for the predators (and the fishery) fluctuates from one year to the next ... are essentially linear functions of krill catch with slope 1.5 and reductions in adult survival are ... also linear functions of krill catch, with but slopes less than I. That is, reductions in reproductive ...

    Meeting Document : WG-EMM-98/48 : Auteur(s): M. Mangel and P.V. Switzer (USA)

Pages