Результаты поиска
-
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 ... Abstract: We report the analyses of a dataset spanning 39 years of near-annual fishing for ... 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 ...
Meeting Document : WG-FSA-12/P04 : Автор(ы): D.G Ainley, N. Nur, J.T Eastman, G. Ballard, C.L Parkinson, C.W Evans and A.L. DeVries
-
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 : Автор(ы): I. Everson (United Kingdom) and K.-H. Kock (Germany)
-
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 : Автор(ы): I. Everson (United Kingdom) and K.-H. Kock (Germany)
-
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 ... -transmitters in the middle of the brooding period (chick age 12-18 days) and 17 females instrumented at the ... of the creching period. The first trip usually lasted several nights, whereas the subsequent trips ...
Meeting Document : WG-EMM-98/28 : Автор(ы): F. Mehlum, K. Isaksen and V. Bakken (Norway)
-
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 : Автор(ы): D.A.J. Middleton (New Zealand)
-
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 ... 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 ... three foraging trips each were required to detect a 35% step increase in foraging trip duration after ...
Meeting Document : WG-EMM-05/22 : Автор(ы): J. Clarke, C. Southwell and L.M. Emmerson (Australia)
-
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 ... -Ecosystem Monitoring Program Standard Method C 1.2 for measuring fur seal trip duration sets the sample size ... examination of variance and sample size for female Antarctic fur seal trip durations Approval: Approved ...
Meeting Document : WG-EMM-99/45 : Автор(ы): M.E. Goebel (USA)
-
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 : Автор(ы): Switzer, P.V., Mangel, M.
-
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 ... 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 ... model at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries ...
Meeting Document : WG-EMM-98/48 : Автор(ы): M. Mangel and P.V. Switzer (USA)
-
Short report on trip 9604, American Champion, Aug/Sep 1996
Author(s): Delegation of South Africa Title: Short report on trip 9604, American Champion, Aug ...
Meeting Document : WG-FSA-96/47 : Автор(ы): Delegation of South Africa
Страницы
- « первая
- ‹ предыдущая
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- …
- следующая ›
- последняя »