Yurtseva , A , Noreikiene , K , Lajus , D , Li , Z , Alapassi , T , Ivanova , T , Ivanov , M , Golovin , P , Vesala , S & Merilä , J 2019 , ' Aging three-spined sticklebacks Gasterosteus aculeatus : comparison of estimates from three structures ' , Journal of Fish Biology , vol. 95 , no. 3 , pp. 802-811 . https://doi.org/10.1111/jfb.14071
Title: | Aging three-spined sticklebacks Gasterosteus aculeatus : comparison of estimates from three structures |
Author: | Yurtseva, Anastasia; Noreikiene, Kristina; Lajus, Dmitry; Li, Zitong; Alapassi, Tarja; Ivanova, Tatiana; Ivanov, Mikhail; Golovin, Pavel; Vesala, Sami; Merilä, Juha |
Contributor organization: | Organismal and Evolutionary Biology Research Programme Ecological Genetics Research Unit Ecology and Evolutionary Biology |
Date: | 2019-09 |
Language: | eng |
Number of pages: | 10 |
Belongs to series: | Journal of Fish Biology |
ISSN: | 0022-1112 |
DOI: | https://doi.org/10.1111/jfb.14071 |
URI: | http://hdl.handle.net/10138/316133 |
Abstract: | In order to assess the accuracy and reliability of age estimates from calcified structures in the three-spined stickleback Gasterosteus aculeatus, we evaluated intra and inter-reader repeatability from three structures: otoliths, gill covers and pelvic spines). Average age estimates were also compared between the structures. The overall intra-reader repeatability of age estimates were highest for otoliths (69%), lowest for gill covers (53%) and intermediate for spine cross-sections (63%). Although four of the seven readers had the highest intra-reader repeatability score for spine cross-sections, the inter-reader variance in this structure was much higher than in others. Otoliths were the easiest in terms of their pre-analysis treatment and exchange of materials (as digital images) between readers. In addition, otoliths are more well-studied compared with the other structures with respect to their development through ontogenesis; hence, age estimates based on otoliths should be the most reliable. Therefore, our recommendation is that whenever possible, analysis of otoliths should be the preferred approach for aging G. aculeatus. |
Subject: |
age
Gasterosteus aculeatus gill cover otolith pelvic spine repeatability DAILY GROWTH INCREMENTS AGE-DETERMINATION DORSAL SPINES OTOLITHS PRECISION POPULATION VALIDATION EVOLUTION SCALES PRESERVATION 1181 Ecology, evolutionary biology |
Peer reviewed: | Yes |
Rights: | unspecified |
Usage restriction: | openAccess |
Self-archived version: | acceptedVersion |
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