Sunday, September 9, 2012

Roi--Peacock Grouper


Peacock grouper
 ◆ Roi are protogynous hermaphrodites, which means they start life as females and later switch sexes to males. ◆ Roi take two years to become sexually reproductive and generally live in harems of 1 male and up to 12 females. ◆ Roi harems occupy fixed territories, which the male defends against intrusion from neighboring harems. 
◆ In Hawaii, individuals were found up to 16 years of age in studies, with a depth range of 1 to 130.  
◆ On the Kona Coast, the average density of roi is eight individuals per 11,000 square feet.ion


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