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The pattern of gametogenesis in adult Pinctada fucata fucata from Zamami Island, Okinawa Prefecture (26°N), Japan, was examined and compared with to data reported for pearl oysters in other Indo-Pacific regions. Gametogenesis was observed in histological preparations of gonad from 232 adults sampled approximately monthly (1992-1993). Maturation was observed throughout the year with a major peak in...
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