Research output: Contribution to journal › Article › peer-review
Aging three-spined sticklebacks Gasterosteus aculeatus : comparison of estimates from three structures. / Yurtseva, Anastasia; Noreikiene, Kristina; Lajus, Dmitry; Li, Zitong; Alapassi, Tarja; Ivanova, Tatiana; Ivanov, Mikhail; Golovin, Pavel; Vesala, Sami; Merilä, Juha.
In: Journal of Fish Biology, Vol. 95, No. 3, 01.09.2019, p. 802-811.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Aging three-spined sticklebacks Gasterosteus aculeatus
T2 - comparison of estimates from three structures
AU - Yurtseva, Anastasia
AU - Noreikiene, Kristina
AU - Lajus, Dmitry
AU - Li, Zitong
AU - Alapassi, Tarja
AU - Ivanova, Tatiana
AU - Ivanov, Mikhail
AU - Golovin, Pavel
AU - Vesala, Sami
AU - Merilä, Juha
PY - 2019/9/1
Y1 - 2019/9/1
N2 - 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.
AB - 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.
KW - age
KW - Gasterosteus aculeatus
KW - gill cover
KW - otolith
KW - pelvic spine
KW - repeatability
KW - Reproducibility of Results
KW - Animals
KW - Otolithic Membrane/anatomy & histology
KW - Smegmamorpha/anatomy & histology
KW - Gills/anatomy & histology
UR - http://www.scopus.com/inward/record.url?scp=85068142926&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/aging-threespined-sticklebacks-gasterosteus-aculeatus-comparison-estimates-three-structures
U2 - 10.1111/jfb.14071
DO - 10.1111/jfb.14071
M3 - Article
C2 - 31192469
AN - SCOPUS:85068142926
VL - 95
SP - 802
EP - 811
JO - Journal of Fish Biology
JF - Journal of Fish Biology
SN - 0022-1112
IS - 3
ER -
ID: 49208211