Morphology of Gonad in Embryos of Swimming Crabs,Portunus trituberculatus
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Graphical Abstract
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Abstract
Gonads were observed in the section of the second egg-zoea stage of swimming crabs,Portunus trituberculatus with a microscope.The gonads appearance is saclike,inside has a cavity,and cells arrange like a strand that opens to the surface of the embryo.One embryo has two gonads linking with a tube structure.
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