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The two giant notothenioid species, the Patagonian toothfish Dissostichus eleginoides and the Antarctic toothfish D. mawsoni, are important components of the Antarctic ichthyofauna and heavily exploited commercially. They have similar appearance and size, both are piscivorous and bentho-pelagic, but differ in their geographic distribution and(More)
Two genes, that is, 5S ribosomal sequences and antifreeze glycoprotein (AFGP) genes, were mapped onto chromosomes of eight Antarctic notothenioid fish possessing a X1X1X2X2/X1X2Y sex chromosome system, namely, Chionodraco hamatus and Pagetopsis macropterus (family Channichthyidae), Trematomus hansoni, T. newnesi, T. nicolai, T. lepidorhinus, and Pagothenia(More)
Affinity capillary electrophoresis is a new method for studies of biomolecular recognition. Applications reported in the literature include chiral separation of racemic biomolecules, measurement of binding constants, estimation of kinetic on- and off-rate constants, determination of binding stoichiometries (a useful tool in examining electrostatic(More)
Antarctic notothenioid fish larvae and juveniles are pelagic and subject to oceanic transport, influencing species distribution and biogeography. The nature of notothenioid larval/juvenile diversity in the high-latitude McMurdo Sound is virtually unknown to-date. We report here a first assessment of this diversity and its contribution to species richness in(More)
The marble notothen, Notothenia rossii, is widely distributed around the waters of sub-Antarctic islands in the Southern Ocean and is exposed to different temperatures that range from −1.5 to 8 °C. This study investigates whether the different environmental conditions experienced by N. rossii at different latitudes in the Southern Ocean affect the levels of(More)
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