Search results
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Parameters for a model of the functional relationships between krill escapement and crabeater seal demographic performance
maturity was estimated to be 3.8 years. Of 44 annual estimates of historical cohort strength, 16 were ... judged to represent “ good" years for demographic performance, 18 as "poor" years, and 10 ... as "bad" years. Author(s): P.L. Boveng and J.L. Bengtson (USA) Title: Parameters for a model ... maturity was estimated to be 3.8 years. Of 44 annual estimates of historical cohort strength, 16 were ...
Meeting Document : WG-CEMP-93/04 : Author(s): P.L. Boveng and J.L. Bengtson (USA)
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Draft Research and Monitoring Plan for the South Orkney Islands Southern Shelf Marine Protected Area (MPA Planning Domain 1, Subarea 48.2)
is based on the draft initially proposed in 2014 (SC-CAMLR-XXXIII/11) and revised in 2018 (SC-CAMLR-XXXVII ... on the draft initially proposed in 2014 (SC-CAMLR-XXXIII/11) and revised in 2018 (SC-CAMLR-XXXVII/09). It aims ...
Meeting Document : WG-EMM-2019/31 : Author(s): S.M. Grant and P.N. Trathan
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Interannual variability of krill, salp and other zooplankton populations in the South Shetland Island area during Austral summer 1993–1998
recruitment from the past two years. Unusually small juvenile krill in 1998 suggested that survival success ... the 1993 "salp year". The magnitude of this salp bloom may have resulted from a large ... regimes identified here as "cope pod years", "salp years" and "transition periods ... ". The 4-5 year periodicity of "salp years" over the past fifteen years is discussed ...
Meeting Document : WG-EMM-98/50 : Author(s): V. Loeb, W. Armstrong, R. Hewitt (USA) and V. Siegel (Germany)
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Estimates of the tag loss rates for single and double tagged toothfish (Dissostichus mawsoni) fishery in the Ross Sea
–0.052) tags per year. For double tagged fish this corresponds to 99.5% of double tagged fish having ... at least one tag remaining after one year at liberty; 98.9% after two years at liberty; declining to 94.6 ... % after six years; and to 88.4% after ten years. Comparison of the different loss rate models suggested ... , but there was no evidence of such failure in these data for periods of up to six years at liberty. The loss rate for double ...
Meeting Document : WG-SAM-11/18 : Author(s): A. Dunn, M.H. Smith (New Zealand), D.J. Agnew (UK) and S. Mormede (New Zealand)
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Southern right whale (Eubalaena australis) reproductive success is influenced by krill (Euphausia superba) density and climate
. The number of calves recorded each year varied from 7 to 43 (x = 21.11 ± 11.88). Using cross-correlation ... correlations were found with krill densities (r = 0.69, p = 0.002, lag 0 years), Oceanic Niño Index (r = −0.65 ... , p = 0.03, lag 6 years), Antarctic Oscillation (r = 0.76, p = 0.01, lag 7 years) and Antarctic sea ice area ... (r = −0.68, p = 0.002, lag 0 years). Our results suggest that global climate indices influence southern right ...
Meeting Document : WG-EMM-16/P06 : Author(s): E. Seyboth, K.R. Groch, L. Dalla Rosa, K. Reid, P.A.C. Flores and E.R. Secchi
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Climate change and zooplankton dominance in the Antarctic marine ecosystem: implications for the food web
has been warming over the past 40 years with an associated decreased frequency of winters ... ) and population dynamics of salps (Salpa thompsoni). Strong krill recruitment success there follows years ... years suggests that the food web may be affected by climate change. The 1994/95 austral summer season ... followed the first prolonged winter sea-ice season in three years and provides a strong contrast ...
Meeting Document : WG-EMM-96/21 : Author(s): Siegel, V., Fraser, W., Trivelpiece, S., Holm-Hansen, O., Loeb, V., Hewitt, R., Trivelpiece, W.
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Do the males of Dissostichus eleginoides grow faster, or only mature before females?
, it is concluded that the males mature for the first time at 4 years age and females at 10 years age, reaching 100 ... % maturity at 12 years age the males and 21 years age the females. Author(s): C.A. Moreno (Chile) Title: Do ... that the males mature for the first time at 4 years age and females at 10 years age, reaching 100% maturity at 12 ... years age the males and 21 years age the females. ...
Meeting Document : WG-FSA-98/16 Rev. 1 : Author(s): C.A. Moreno (Chile)
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Population change in gentoo penguins Pygoscelis papua at South Georgia: potential roles of adult survival, recruitment and deferred breeding
of variations introduced by good and bad years (as classified on the basis of breeding success ... ). There is generally good agreement between observed and predicted breeding populations, except in four years, when ... of these years were associated with reduced availability of krill, one with very cold winter and spring ... in one year, and for part of the differences in two other years, when mortality rates must also have been ...
Meeting Document : WG-CEMP-93/08 : Author(s): J.P. Croxall and P. Rothery (United Kingdom)
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Preliminary results of the experiments on the krill transport study in the South Orkney area (April 1992)
within the square of 30 x 30 miles northwestwards of Coronation Island in the fishing fleet operation ... the square of 30 x 30 miles northwestwards of Coronation Island in the fishing fleet operation area ...
Meeting Document : WG-CEMP-92/34 : Author(s): L.G. Maklygin, V.N. Shnar, A.P. Malyshko (Russian Federation) and A.G. Shepelev (Ukraine)
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Development of methods relevant to feedback management (FBM) for the krill fishery
, as presented in SC-CAMLR XXXVI/BG20 requires acoustic data to be collected, processed and reported continuously ... summer 2018-2019. Author(s): B.A. Krafft, A. Lowther, G. Macaulay, M. Chierici, M. Biuw, A. Renner, T.A ... and predator needs. A future developed FBM system, as presented in SC-CAMLR XXXVI/BG20 requires acoustic data ... studies will take place during the Austral summer 2018-2019. ...
Meeting Document : WG-EMM-18/08 : Author(s): B.A. Krafft, A. Lowther, G. Macaulay, M. Chierici, M. Biuw, A. Renner, T.A. Klevjer, R. Øyerhamn, C.A. Cárdenas, J. Arata, A. Makhado, C. Reiss and O.A. Bergstad