Search results
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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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Conservation Measure Conservation Measure 10-10 (2012)
the period 1 December–30 November 1 in the current fishing year. In compiling Draft CCAMLR Compliance ... [YEAR] TO 30 NOVEMBER [YEAR] [MEMBER] Conservation measure Conservation measure implementation ... effect to the objective of the Convention, Noting Article XXI of the Convention which requires ... that, in accordance with Article X of the Convention, the Commission has undertaken to draw the attention of all ...
Conservation Measure : 10-10 (2012)
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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
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Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
techniques, from 1991 back to 1977. The predicted age structure, dominated in recent years by the 1987 year ... -class (1 year olds in 1988), was quite robust, despite the use of various combinations of survey ... proportion of 5 year olds, which was not observed during the survey on Falklands Protector in January 1992 ... . Breakdown in the credibility of the VPA results in most recent years is attributed to the invalid assumption ... . The predicted age structure, dominated in recent years by the 1987 year-class (1 year olds in 1988), was quite ... to the VPA the population in 1991/92 was composed of a large proportion of 5 year olds, which ... of the VPA results in most recent years is attributed to the invalid assumption of constant ... Champsocephalus gunnari B IIo~paHoHe 48.3 C MCnOJIb30BaHMeM VPA, 6bIJIM npe~npMHSlTbI nonbITKM ycoBepmeHcTBoBaTb ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Author(s): Parkes, G.
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Interannual changes in body fat condition, stomach content mass and distribution of minke whales in Antarctic Areas IV and V
years included in the study, two were categorized as years of poor body fat condition, and three ... as years of good condition. Estimated body weight gain during the feeding season in poor years was 25 ... % lower than in good years. The relationship between girth and stomach content mass in the ice-edge zone ... V. In Area V, in a year of high sea-ice extent, the krill-rich slope region in the western zone was covered ...
Meeting Document : WG-EMM-97/18 : Author(s): Ichii, T., Nishiwaki, S., Tamura, T., Fujise, Y., Matsuoka , K.