Journal of National Fisheries University

PISSN : 0370-9361

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Journal of National Fisheries University Volume 64 Issue 3
published_at 2016-03

Freshwater Stingray Embryos Store Yolk in Their Intestinal Epithelial Cells

淡水産エイ類の胚は腸管上皮中に卵黄を貯める
Tomonaga Susumu
fulltext
9.57 MB
64-3-182-187.pdf
Descriptions
Intestines of freshwater stingray embryos sampled in South America were examined histologically. During embryonic development, yolk, which is transported through the yolk stalk from the external yolk sac, appeared to be accumulating in the intestinal epithelial cells of larger embryos. The yolk (or yolk derived/originated substances) that accumulated in the intestinal epithelial cells may provide nutrients that enable the embryos to survive the vulnerable period immediately after birth.
Creator Keywords
freshwater stingray
yolk
intestinal epithelial cells
Disceus thayeri
Potamotrygon magdalenae
P. motoro