Notes on the biology of Centrolabrus caeruleus Azevedo, 1999 (Teleostei: Labridae)

Azevedo, José M. N.; Cepeda, Helena I. R.; Rodrigues, João Bernardo

http://hdl.handle.net/10400.3/141

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Authors

Azevedo, José M. N.

Cepeda, Helena I. R.

Rodrigues, João Bernardo

Abstract(s)

Centrolabrus caeruleus is a recently described littoral fish whose biology is poorly known, despite the fact that it is very abundant in the Azores. This paper presents general information about the age and growth, food and reproduction of this species. Males grow to larger sizes than females, and there are sexual differences in colour and behaviour. Preliminary von Bertalanffy growth curves are given for both sexes, based on modal analysis of the monthly length-frequency distributions. The length-weight relationship is also given. Food is dominated by small phytal invertebrates. Reproduction occurs mainly between March and June. Young of the year are seen from July on. Territorial males build algal nests where females spawn. Details of nest building, and of the courtship and spawning behaviours are given.