From zero to ossified: Larval skeletal ontogeny of the Neotropical Cichlid fish Cichlasoma dimerus
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Author
Beriotto, Agustina C.
Vissio, Paula G.
Fernández, Ignacio
Álvarez González, Carlos A.
Di Yorio, María P.
Sallemi, Julieta E.
Pérez Sirkin, Daniela I.
Publication date
2023-09-06ISSN
0362-2525
Abstract
The identification of skeletal elements, the analysis of their developmental sequence, and the time of their appearance during larval development are essential to broaden the knowledge of each fish species and to recognize skeletal abnormalities that may affect further fish performance. Therefore, this study aimed to provide a general description of the development of the entire skeleton highlighting its variability in Cichlasoma dimerus. Larvae of C. dimersus were stained with alcian blue and alizarin red from hatching to 25 days posthatching. Skeletogenesis began with the endoskeletal disk and some cartilage structures from the caudal fin and the splachnocranium, while the first bony structure observed was the cleithrum. When larvae reached the free-swimming and exogenous feeding stage, mostly bones from the jaws, the branchial arches, and the opercle series evidenced some degree of ossification, suggesting that the ossification sequence of C. dimerus adjusts to physiological demands such as feeding and ventilation. The caudal region was the most variable regarding meristic counts and evidenced higher incidence of bone deformities. In conclusion, this work provides an overview of C. dimerus skeletogenesis and lays the groundwork for further studies on diverse topics, like developmental plasticity, rearing conditions, or phylogenetic relationships.
Document Type
Article
Document version
Accepted version
Language
English
Subject (CDU)
637 - Produce of domestic (farmyard) animals and game
Pages
20
Publisher
Wiley
Is part of
Journal of Morphology
Citation
Beriotto, Agustina C., Paula G. Vissio, Enric Gisbert, Ignacio Fernández, Carlos A. Álvarez-González, María P. Di Yorio, Julieta E. Sallemi, and Daniela I. Pérez Sirkin. 2023. “From Zero to Ossified: Larval Skeletal Ontogeny of the Neotropical Cichlid Fish Cichlasoma Dimerus.” Journal of Morphology 284 (10). https://doi.org/10.1002/jmor.21641.
Grant agreement number
MICIU/Programa Estatal de I+D+I orientada a los retos de la sociedad/117RT0521/ES/Estrategias de desarrollo y mejora de la producción de larvas de peces en Iberoamerica/LARVAplus
Program
Aqüicultura
This item appears in the following Collection(s)
- ARTICLES CIENTÍFICS [2555]
Rights
© 2023 Wiley Periodicals LLC.