Abstract
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 220:291-294 (2001) - doi:10.3354/meps220291 Validation of otolith daily increments in the tropical eel Anguilla marmorata Hagi Yulia Sugeha*, Akira Shinoda, Miho Marui, Takaomi Arai**, Katsumi Tsukamoto Ocean Research Institute, The University of Tokyo, Minamidai, Nakano Tokyo 164-8639, Japan *E-mail: yuli@ori.u-tokyo.ac.jp **Present address: Otsuchi Marine Research Center, Ocean Research Institute, The University of Tokyo, 2-106-1, Akahama, Otsuchi, Iwate 028-1102, Japan ABSTRACT: To determine the periodicity of the deposition of growth increments in the otolith of the glass eels of the tropical eel Anguilla marmorata, an otolith validation experiment was performed. Glass eels were captured at the mouth of the Poigar River, north Sulawesi Island, Indonesia, and then immersed in an alizarin complexone (ALC) solution to mark their otoliths. After being held under natural conditions in the river for 20 d, it was found that the number of rings outside the ALC mark was 20.1 ± 0.7 (mean ± SD), which coincided with the number of days after the ALC treatment. This validation experiment indicated that the growth increments in the otoliths of A. marmorata glass eels were deposited daily and can be used for daily age determination. KEY WORDS: Anguilla marmorata · Otolith · Daily increment · ALC mark · Daily ring · Tropical eel Full text in pdf format PreviousExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 220. Online publication date: September 27, 2001 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2001 Inter-Research.
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