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NÚMERO 3

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Crecimiento y supervivencia del callo de hacha Atrina maura (Bivalvia: Pinnidae) cultivado en la costa sureste del Golfo de California, México

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Use of organic and inorganic fertilization in zero-discharge tanks and ponds and its effects on plankton and shrimp Litopenaeus vannamei performance

Embryonic and larval development of Dissostichus eleginoides (Pisces: Nototheniidae)

Autores

CORRESPONSAL

Armando Mujica

amujica@ucn.cl

1

1

Departamento de Acuicultura, Universidad Católica del Norte, P.O. Box 117, Coquimbo, Chile

Daniela Peñailillo

1

1

Departamento de Acuicultura, Universidad Católica del Norte, P.O. Box 117, Coquimbo, Chile

Alberto Reyes

2

2

Corporación de Educación La Araucana, Puerto Montt, Chile

María Luisa Nava

1

1

Departamento de Acuicultura, Universidad Católica del Norte, P.O. Box 117, Coquimbo, Chile

Resumen

This is the first description of the embryonic and early larval development of laboratory-reared (4-8°C) Dissostichus eleginoides. Specimens were periodically sampled to describe egg and larval development. Eggs were spherical (3.1-3.5 mm diameter) and had a transparent chorion and slightly rough surface, with 28 oil globules located around the germinal pole. Eggs incubated between 30 and 33 days until hatching. At day 18 post-hatching, the yolk sac was absorbed by vitellogenic larvae (8-13 mm total length), after which, the fin rays started to develop, pigmentation increased, and main melanophore aggregation zones were distinguished on the posterodorsal part of the head, the intestine, and before the caudal peduncle. The hypural complex was fully formed by day 57 post-hatching (49-53 mm standard length).

Palabras clave

Dissostichus eleginoides, embryonic and larval development

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