Protandric


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Pro`tan´dric


a.1.(Zool.) Having male sexual organs while young, and female organs later in life.
References in periodicals archive ?
Effects of density and simulated recruitment and mortality on sex change in a protandric simultaneous hermaphroditic shrimp, Lysmata wurdemanni.
echinata is a protandric, dioecious species with low levels of functional hermaphroditism as reported for Crassostrea glomerata (Dinamani 1974), which is now considered to be in genus Saccostrea (Salvi et al.
All species studied so far are protandric simultaneous hermaphrodites (Baeza et al., 2013).
Similar to snook, barramundi are protandric hermaphrodites, which means by age four the boys are putting on lipstick and converting to females.
It is stressed that pollen viability decreases over time, whereas stigma receptivity increases in protandric species (Rodriguez-Riano and Dafni, 2007).
mapora was considered as allogamous and protandric type (KALUME et al., 2002), and species with this type of reproduction generally contain higher variation within sample areas.
The species is protandric. The staminate flowers open simultaneously with the peduncular bract, remaining in flower for one to two days after anthesis, thereby avoiding self-pollination.
Male penis length increased with SL, a finding that also indicates channeled whelk may not be protandric hermaphrodites.
Pink shrimp are protandric hermaphrodites, generally functioning as males for the first year and a half of their life before developing into terminal females (Butler, 1964), although the age at which individuals change sex can vary from year to year in response to the population structure (Hannah and Jones, 1991; Charnov and Hannah, 2002).