Age determination by rotula of red sea urchin, Pseudocentrotus depressus

Age determination by rotula of red sea urchin, Pseudocentrotus depressus

Growth rings were clearly visible in rotula of red sea urchin, Pseudocentrotus depressus, by heating at 350degC for 10-180 min. After confirming a single formation of annulus in a year from December to January, we confirmed that growth rings in rotula were useful for age determination of red sea urc...

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Veröffentlicht in:Suisan Zoshoku 2008-09, Vol.56 (3)
Hauptverfasser: Watanabe, S.(Nagasaki-ken. Inst. of Fisheries (Japan)), Natukari, Y
Format: Artikel
Sprache:eng ; jpn
Schlagworte:
AGE DETERMINATION
ANILLO DE CRECIMIENTO
BOCA
BOUCHE
CERNE
DETERMINACION DE LA EDAD
DETERMINATION DE L'AGE
GROWTH RINGS
HEAT TREATMENT
MOUTH
PSEUDOCENTROTUS
TRAITEMENT THERMIQUE
TRATAMIENTO TERMICO
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Beschreibung
Zusammenfassung:Growth rings were clearly visible in rotula of red sea urchin, Pseudocentrotus depressus, by heating at 350degC for 10-180 min. After confirming a single formation of annulus in a year from December to January, we confirmed that growth rings in rotula were useful for age determination of red sea urchin.
ISSN:0371-4217
DOI:10.11233/aquaculturesci.56.383