Validating daily otolith increment formation in young of the year pagellus acarne in the Çanakkale region

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dc.contributor.authorAyyildiz, Hakan
dc.contributor.authorKurtkaya, Emre
dc.contributor.authorCelik, Pinar
dc.contributor.authorAltin, Aytac
dc.date.accessioned2025-01-27T20:12:05Z
dc.date.available2025-01-27T20:12:05Z
dc.date.issued2024
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractAccurate age estimation is essential for population dynamics modeling and fisheries management. Otoliths serve as a critical resource for age determination in ichthyological studies, capitalizing on the embedded growth increments. The periodicity of these increments, however, requires thorough validation to confirm the accuracy of age assessments. This study validated daily increment deposition in sagittal otoliths of young-of-year Pagellus acarne from & Ccedil;anakkale, Turkey using Alizarin Red S (ARS), a fluorescent calcium-binding marker. Specimens (n=107; 1.8-4.7cm TL) were exposed to ARS concentrations of 0 (control), 50, 100, 150, 200, and 300mg/L for 24h, then reared 13 days. After a recovery period of 13 days, the second dyeing was performed with the aim of having a specific fluorescent mark to test the 13 rings found between the 2 fluorescent marks. Otoliths were examined under fluorescent microscopy. ARS marks were detectable in 81.57% of otoliths at >= 100mg/L, with the highest visibility at 300mg/L. Survival exceeded 84.2% across treatments. Increment counts between the first and second ARS marks (13 days) and from the second mark to the edge (20 days) matched elapsed time. Ages from wild fish (n=95) ranged 39-201 days with a growth rate of 0.176mm/day. This research demonstrates ARS is an effective, low-impact tool for periodicity validation and provides the basis for accurate age determination and population modeling of this ecologically important species in the region.
dc.description.sponsorshipScientific and Technological Research Council of Turkey [118O321]
dc.description.sponsorshipThis study was funded by The Scientific and Technological Research Council of Turkey (Project No: 118O321) .
dc.identifier.endpage509
dc.identifier.issn2538-5542
dc.identifier.issn2538-2705
dc.identifier.issue3
dc.identifier.startpage498
dc.identifier.urihttps://hdl.handle.net/20.500.12428/20839
dc.identifier.volume9
dc.identifier.wosWOS:001356589900001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherArman Darya Inc
dc.relation.ispartofResearch in Marine Sciences
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectPagellus acarne
dc.subjectOtolith
dc.subjectDaily increment
dc.subjectPeriodicity validation
dc.subjectFluorescence marking
dc.subjectAlizarin red S
dc.titleValidating daily otolith increment formation in young of the year pagellus acarne in the Çanakkale region
dc.typeArticle

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