Rev. biol. mar. oceanogr. 48(3): 629-633

Research Note

Validations of the daily periodicity of increment deposition in rocky intertidal fish otoliths of the south-eastern Pacific Ocean

Lidia Mansur1, Daniela Catalán1, Guido Plaza2, Mauricio F. Landaeta3 and F. Patricio Ojeda1

1Departamento de Ecología, Pontificia Universidad Católica de Chile, Alameda 340, Santiago de Chile, Chile
2Escuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de Valparaíso, Avenida Altamirano 1480, Casilla 1020, Valparaíso, Chile
3Laboratorio de Ictioplancton (LABITI), Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Avenida Borgoño 16344, Reñaca, Viña del Mar, Chile

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Daily deposition of otolith increments was validated for juveniles of 8 intertidal fish species in central Chile, Helcogrammoides chilensis, Helcogrammoides cunninghami (Tripterygiidae), Auchenionchus microcirrhis, Auchenionchus crinitus (Labrisomidae), Hypsoblennius sordidus (Blenniidae), Gobiesox marmoratus, Sicyases sanguineus (Gobiesocidae) and Myxodes viridis (Clinidae). Validation was performed by Alizarin Red-S labelling followed by 6 days of growth.

Key words:  Otolith daily increments, alizarin red S, intertidal fishes