Abstract

The spawning sites, embryonic development, and initial larval stages were described for the Chilean kelpfish, Myxodes viridis. Six different egg clutches were found attached by an elastic filament to the fronds of the subtidal kelp, Lessonia trabeculata, at shallow depths (0-7 m). All egg clutches were cared by one large (>15 cm TL) male, and egg color varied depending on the developmental stage. Embryonic development until hatching was categorized into 7 stages, which were completed within about 18 days in the laboratory. Recently hatched larvae presented fully pigmented eyes, a well-developed mouth with major shape changes in the head during the first week suggesting their ability to feed on plankton early in their larval development.

Highlights

  • Kelpfishes are a subgroup of species in the Clinidae family

  • Five egg clutches were found attached to Lessonia trabeculata, and one from Las Cruces was attached to a collector fixed to L. trabeculata stipes

  • A welldeveloped mouth, vigorous swimming movements and yolk consumption suggest that M. viridis larvae could be able to feed on plankton early in their larval development

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Summary

Introduction

They live among the fronds of large brown macroalgae, turf algae, and seagrass in rocky substrates (Stepien 1990, 1992). Clinids belong to the monophyletic group Blennoidei, which share similar aspects of their reproductive biology and mating processes (Hastings & Petersen 2010). Most of these fishes use external fertilization, where females choose a spawning site and lay their eggs, males fertilize and guard them (Hastings & Petersen 2010). Site features (i.e., water flow, substrate type, depth, refuge availability, Helfman et al 2009) and the male parental care abilities to guard and aerate the nest are essential aspects that parents must fulfill (Gross 2005, Navarrete-Fernández et al 2014)

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