The sexual cycle of Japanese mitten crab Eriocheir japonica (de Haan, 1835) in its northern range in water bodies of the Primorye proved to have specific properties including changed seasonal dynamics of gonad maturity stages, delayed spawning period, and reduced breeding season. The ovary color regularly changed during the gonad growth in females, which was accompanied by an increase in total carotenoid content from 1.4 to 22.2 mg/100 g tissue and by changes in the proportion of major pigments. The relative content of the carotene fraction notably decreased and that of astaxanthin slightly decreased during gonad maturation. The revealed changes in carotenoid levels in the ovary point to the activity and significance of pigment metabolism in the reproductive cycle of E. japonica.
Russian Journal of Developmental Biology – Springer Journals
Published: Jun 6, 2009
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