Результаты поиска

1. COLLAPSE OF SOUTH AFRICA’S PENGUINS IN THE EARLY 21ST CENTURY

   from about 56 000 pairs in 2001 to some 21 000 pairs in 2009, a loss of 35 000 pairs (>60%) in eight ... purse-seine fisheries. In Algoa Bay, numbers of African penguins halved from 21 000 pairs in 2001 to 10 ... 000 pairs in 2003. In the Western Cape, numbers decreased from a mean of 35 000 pairs in 2001–2005 to ...

   Meeting Document : WG-EMM-11/P8 : Автор(ы): R.J.M. Crawford, R. Altwegg, B.J. Barham, P.J. Barham, J.M. Durant, B.M. Dyer, D. Geldenhuys, A.B. Makhado, L. Pichegru, P.G. Ryan, L.G. Underhill, L. Upfold, J. Visagie, L.J. Waller and P.A. Whittington

2. A balanced trophic model of the ecosystem of the Ross Sea, Antarctica, for investigating effects of the Antarctic toothfish fishery

   Sea with which to investigate effects of the fishery for Antarctic toothfish (Dissostichus mawsoni). A ... parameters. The Ross Sea is a low primary production system, with high seasonal, spatial and interannual ... objective method of adjustment that takes into account estimates of parameter uncertainty, and appropriately ... ), and 40% (diet fractions). The balanced model presented here has not yet been validated and should be ...

   Meeting Document : WG-EMM-07/18 : Автор(ы): M.H. Pinkerton, S.M. Hanchet and J. Bradford-Grieve (New Zealand)

3. The utility of satellite remote sensing for identifying the location and size of penguin breeding sites in Antarctica: a review of previous work and specifications of some current satellite sensors

   current satellite technology, are discussed. Some specifications of current satellite sensors that may be ... with respect to the following issues: spectral response of surrounding material, variability in the ...

   Meeting Document : WG-EMM-03/51 : Автор(ы): C. Southwell and L. Meyer (Australia)

4. Predicting changes in the Antarctic krill Euphausia superba population at South Georgia

   nature and consequences of changes in krill population dynamics that accompany l1uctuations in its ... length ill the diet of predators at South Georgia from 1991-1997, allowed predictions to be made about ... with model predictions, in 1998 there was a serial change in krill population structure, low krill ...

   Meeting Document : WG-EMM-99/37 : Автор(ы): K. Reid, K.E. Barlow, J.P. Croxall and R.I. Taylor (UnitedKingdom)

5. The case for a Ross Sea marine reserve

   Abstract:  The Ross Sea continental shelf and slope have a number of characteristics that make it ... .¹ With exceptional biodiversity and evolutionary significance, as well as its potential as a climate ... Ross Sea derives from its relatively pristine state, which will be irrevocably altered by the ...

   Meeting Document : CCAMLR-XXX/BG/23 : Автор(ы): Submitted by ASOC

6. A PROPOSED MANAGEMENT PROCEDURE FOR THE TOOTHFISH (Dissostichus eleginoides) RESOURCE IN THE PRINCE EDWARD ISLANDS VICINITY

   steepness h is low. These tests also indicate that monitoring of future catch-at-length information would be ... length of the catches made. A specific MP, with its associated control parameter values, is proposed for ...

   Meeting Document : WG-SAM-08/11 : Автор(ы): A. Brandão and D.S. Butterworth (South Africa)

7. Preliminary results on the composition and abundance of the krill stock in the southern Bellingshausen Sea (Antarctic, CCAMLR Subarea 88.3)

   spatial separation for size groups was observed for krill, with small size groups being more abundant in ... conditions, krill spawning and recruitment success and let to the conclusion that recruitment of the 1993/94 ... kri11 year-class will be poor. Author(s):  Siegel, V. Title:  Preliminary results on the composition and ...

   Meeting Document : WG-EMM-95/18 : Автор(ы): Siegel, V.

8. Estimating density and biomass of Antarctic krill (Euphausia superba) around South Shetland using the 2-dB difference method

   estimated using an acoustics survey. Acoustic data were collected with 38 and 120 kHz from April 13 to 24 in ... CCAMLR standard protocols using swarm integration (SHAPES module within that software for swarm ... to be 0.20 g/m 2 and 18 thousand tons (CV=33.8%) applying S v difference 3.96-5.91 dB and 0.92 g/m 2 ...

   Meeting Document : SG-ASAM-18/08 : Автор(ы): S. Choi, K. Lee and D. An

9. Revised research plan for the exploratory fisheries for Dissostichus spp. in Division 58.4.3a in 2014/15

   consistent with the observed number in 2013/14 season. However, these estimators were based on tags released ... difference of catch rates between the east and west during the latest seasons. Thus we consider that the ... a general matter. As a sufficient number of sets have been conducted in the east area, it should be ... recognized that the area has finished its prospecting phase. Therefore, we believe that we do not need to ...

   Meeting Document : WG-FSA-14/20 : Автор(ы): Delegation of Japan

10. Monitoring and managing the effects of environmental change on toothfish assessments

    can be used to identify changes that have occurred, or changes that may currently be occurring, as a ... productivity assumptions that have been found to have occurred, and that these may be related to the effects of ... productivity and environmental conditions are not required for this understanding to be useful. We propose that ... assessment would reduce uncertainty in management advice. The parameters that could be evaluated to for the ...

    Meeting Document : WG-SAM-18/22 : Автор(ы): M. Pinkerton, A. Dunn, S. Mormede and S. Parker

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