Direct ageing of aquatic wild-caught ectothermic organisms predominantly
relies on temporal signatures preserved within the
organism's hard structures, such as the increments of annual periodicity
commonly foundwithin the otoliths and bones of fish (Campana, 2001;
Panfili et al., 2002). The direct ageing of crustaceans has been hampered
by the fact that the entire exoskeleton (cuticle) and cuticular stomach
lining, collectively known as the exuviae, is periodically shed through
ecdysis (Farmer, 1973; Hartnoll, 2001). The lack of a direct and accurate
method for ageing crustaceans has thus far prevented age-based stock
assessments of commercially exploited species.
Direct ageing of aquatic wild-caught ectothermic organisms predominantlyrelies on temporal signatures preserved within theorganism's hard structures, such as the increments of annual periodicitycommonly foundwithin the otoliths and bones of fish (Campana, 2001;Panfili et al., 2002). The direct ageing of crustaceans has been hamperedby the fact that the entire exoskeleton (cuticle) and cuticular stomachlining, collectively known as the exuviae, is periodically shed throughecdysis (Farmer, 1973; Hartnoll, 2001). The lack of a direct and accuratemethod for ageing crustaceans has thus far prevented age-based stockassessments of commercially exploited species.
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