Otolith formation, microstructure and daily increment validation in juvenile perch Perca fluviatilis
Abstract:The otoliths of laboratory-reared larval and juvenile perch Perca fluviatilis of known age were analysed to determine the age of otolith formation and validate the formation of daily increments. There was a linear relationship between number of increments and age in days post-hatching, although by 82 days post-hatching daily increment counts underestimated actual age by an average of 5 days. Otolith dimensions in relation to standard length indicated allometric growth of otoliths until completion of yolk absorption, and isometric growth thereafter, up to 82 days post-hatching.
Document Type: Research Article
Publication date: October 1, 2008