Résultats de la recherche
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Areal and seasonal extent of sea-ice cover off the northwestern side of the Antarctic Peninsula: 1979 to 1996
Paper Title: Areal and seasonal extent of sea-ice cover off the northwestern side of the ... measuring 1.25 x 10 6 km 2 off the northwestern side of the Antarctic Peninsula indicates that there were ... four periods of extensive ice cover during the last 18 years. Variability in seasonal timing, areal ... with features described by Stammerjohn and Smith (1996) for ice cover in the Bellingshausen Sea ... ice cover has declined and the area with little or no ice during the summer has increased. Table 1 ... EXTENT OF SEA-ICE COVER OFF THE NORTHWESTERN SIDE OF THE ANTARCTIC PENINSULA: 1979 TO 1996 R.P. Hewitt ... sea-ice cover of an area measuring 1.25 X l o b km2 off the northwestern side of the Antarctic ... Peninsula indicates that there were four periods of extensive ice cover during the last 18 years ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 65–73 : Auteur(s): Hewitt, R
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Growth and age/length structure of populations of Notothenia (Lepidonotothen) squamifrons (Nototheniidae) in various areas of the Indian sector of the Southern Ocean
) squamifrons (Nototheniidae) in various areas of the Indian sector of the Southern Ocean Abstract / Description ... ) squamifrons), inhabiting areas of the Ob and Lena Banks and the Kerguelen Island Shelf, are presented in this ... paper. It was found that during the first years of life the linear growth rate is 3 to 5 cm per year. It ... decreases by a maximum of 1 cm during the last years of life. Maximum annual weight increments of 100 to 120 ... POPULATIONS OF NOTOTHENIA (LEPIDONOTOTHEN) SQUAMIFRONS (NOTOTHENIIDAE) IN VARIOUS AREAS OF THE INDIAN SECTOR ... OF THE SOUTHERN OCEAN A.K. Zaitsev Abstract Age, growth and age/length composition of ... populations of grey rockcod (Notothenia (Lepidonotothen) squamifrons), inhabiting areas of the Ob and Lena ... Banks and the Kerguelen Island Shelf, are presented in this paper. It was found that during the first ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 123–139 : Auteur(s): Zaitsev, A.K.
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Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea
Paper Title: Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from ... the Ross Sea Abstract / Description: Juveniles of the macrourid Macrourus whitsoni were collected by ... the NIWA research vessel Tangaroa during the BioRoss survey of the western Ross Sea and Balleny ... Islands in 2004. Intensive analysis of otoliths from these specimens greatly increased confidence in the ... model obeyed no such constraints. If fish were unsexed, or the age or length data was missing, they ... were dropped from the dataset. No other grooming of the data was performed. The combined dataset was ... . Analysis of the von Bertalanffy growth curves showed that there was no significant difference between the ... estimAtion And mAturity of the ridge-scAled mAcrourid (Macrourus whitsoni) from the ross seA P.M. Marriott ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 291–303 : Auteur(s): Marriott, P.M., M.J. Manning and P.L. Horn
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Size compositions of males and females in the course of the life cycle of Euphausia superba
Paper Title: Size compositions of males and females in the course of the life cycle of Euphausia ... size and sex composition of samples from commercial catches are analyzed over the reproductive season ... , using samples from different years. The observed variations were related to stages of krill maturity ... during the reproductive cycle. Information on size composition by sex is considered to be vital for an ... THE COURSE OF THE LIFE CYCLE OF EUPHAUSIA SUPERBA RR Makarov* * Abstract Earlier studies did ... catches are analyzed over the reproductive season, using samples from different years. The observed ... variations were related to stages of kriU maturity during the reproductive cycle. Information on size ... nOJlOB03peJlOCTH KPHJl5I B TeQeHHe ~HKJla BocnpOH3BO~CTBa. HH
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 3–16 : Auteur(s): Makarov, R.R.
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Species identification and age estimation for the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea
Paper Title: Species identification and age estimation for the ridge-scaled macrourid (Macrourus ... whitsoni) from the Ross Sea Abstract / Description: Samples of macrourid rattail by-catch from the ... toothfish fishery in the Ross Sea dependency in 2002 were identified by observers and returned to New ... Zealand for subsequent confirmation of their identity by researchers from the National Institute of Water ... . 10 (2003): 37–51 37 SPECIES IDENTIFICATION AND AGE ESTIMATION FOR THE RIDGE-SCALED MACROURID ... (MACROURUS WHITSONI) FROM THE ROSS SEA P. Marriott National Institute of Water and Atmospheric Research ... , Wellington New Zealand Abstract Samples of macrourid rattail by-catch from the toothfi sh fi shery in the ... confi rmation of their identity by researchers from the National Institute of Water and Atmospheric ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 37–51 : Auteur(s): Marriott, P., P.L. Horn and P. McMillan
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Optimization of survey sampling design in the detection of interannual variability and prey size selectivity in the diet of penguins
Paper Title: Optimization of survey sampling design in the detection of interannual variability ... and prey size selectivity in the diet of penguins Abstract / Description: Based on the preliminary ... results of a survey of prey size in Adélie penguins, sampling designs intended for the detection of inter ... the optimal allocation of observations at each level in nested ANOVA designs. The optimal numbers of ... . The yearly cost (C) of estimating the mean size of krill eaten by penguins at a given site is ... THE DETECTION OF INTERANNUAL VARIABILITY AND PREY SIZE SELECTIVITY IN THE DIET OF PENGUINS E ... . Marschoff and B. Gonzalez* Abstract Based on the preliminary results of a survey of prey size in Adelie ... penguins, sampling designs intended for the detection of interannual variations in mean prey size and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 551–559 : Auteur(s): Marschoff, E. and B. Gonzalez
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The use of patent databases to predict trends in the krill fishery
Paper Title: The use of patent databases to predict trends in the krill fishery Abstract ... / Description: The fishery for Antarctic krill (Euphausia superba) caught 210 000 tonnes in 2009/10 with ... vessels from six of CCAMLR’s 25 Members participating in the fishery. Trends in the krill fishery are ... considerable discussion within the Scientific Committee over the utility of these sources of information to ... data and no acknowledged methodology for obtaining it. Table 1: Information requested by the ... countries/patent offices with which the patent has been lodged) to ensure no duplication has occurred ... There has been increasing concern amongst the scientific community and those responsible for the ... management of the Antarctic krill (Euphausia superba) fishery that the harvesting of this spe- cies will ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 135–144 : Auteur(s): Foster, J., S. Nicol and S. Kawaguchi
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Research currently being undertaken by the Republic of South Africa on "dependent and related species" within the Antarctic marine ecosystem
Paper Title: Research currently being undertaken by the Republic of South Africa on " ... ;dependent and related species" within the Antarctic marine ecosystem Abstract / Description: Selected ... components of the biological sciences programme are described. The primary objective of the studies being ... undertaken is to improve our understanding of the ecology of important predators (especially seals and ... in 1873. No further ornithological records Cha_! .1 enser ex Ped it ion were made unt f I the South ... --CAMLR-IV/BG/2 1985 RESEARCH CURRENTLY BEING UNDERTAKEN BY THE REPUBLIC OF SOUTH AFRICA ON "DEPENDENT ... AND RELATED SPECIES" WITHIN THE ANTARCTIC MARINE ECOSYSTEM Abstract Selected components of the ... biological sciences programme are described. The primary objective of the sudies being undertaken is to ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 59-77 : Auteur(s): South Africa
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Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground
Paper Title: Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald ... Islands using catch-at-age and aged mark-recapture data from the main trawl ground Abstract / Description ... in integrated assessments via CASAL for the Heard and McDonald Islands (HIMI, Division 58.5.2 ... adopted whereby the relatively long time series of catch-at-age and mark-recapture data from the main ... bias and imprecision for the CCODE model of the order of 2% while no increase was detected using the ... ), the population in Ground B is assumed to be ‘closed’ in that there has been no immigration nor ... over-dispersion parameter of 1 (i.e. no over-dispersion) for the assumed Poisson distribution for ... The annual natural mortality rate, M, is a very influential parameter in determining the productiv ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 29–45 : Auteur(s): Candy, S.G., D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins
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Diet of the Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (Subarea 88.1)
Paper Title: Diet of the Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica ... (Subarea 88.1) Abstract / Description: The diet of Antarctic toothfish (Dissostichus mawsoni) captured by ... bottom longline in the Ross Sea during the 2001 and 2002 fishing seasons was analysed (3 937 and 5 426 ... ) and the remaining stomachs often contained prey in advanced stages of digestion, making prey ... stomachs varied signifi cantly (15–62%), although no evidence of regurgitation was found in the stomachs ... . 10 (2003): 113–123 113 DIET OF THE ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) FROM THE ROSS SEA ... , Nelson New Zealand Abstract The diet of Antarctic toothfi sh (Dissostichus mawsoni) captured by bottom ... longline in the Ross Sea during the 2001 and 2002 fi shing seasons was analysed (3 937 and 5 426 stomachs ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 113–123 : Auteur(s): Fenaughty, J.M., D.W. Stevens and S.M. Hanchet