Vascular Morphometry of the Retina in Antarctic Fishes Is Dependent upon the Level of Hemoglobin in Circulation By
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Morphometry of retinal vasculature in Antarctic fishes is dependent upon the level of hemoglobin in circulation.
We quantitatively assessed ocular vascular patterns of six Antarctic notothenioid fishes that vary in their expression of the circulating oxygen-binding protein, hemoglobin (Hb). Digital image analyses revealed marked differences in vessel morphometries among notothenioid species. Hemoglobinless (-Hb) icefishes display mean vessel length densities that are greater (Chaenocephalus aceratus, 5.51...
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تاریخ انتشار 2006