Embryonic and larval development of big-scale sand smelt Atherina boyeri (Atherinidae)

Dulčić J., Grubišić L., Pallaoro A., Glamuzina B.

Date de parution: mars 2008
Volume: 32
Number: 1
Pagination: 027-032
Editeur: Société Française d'Ichtyologie
doi: https://doi.org/10.26028/cybium/2008-321-003

The embryonic and early larval development of the laboratory-reared big-scale sand smelt, Atherina boyeri Risso, 1810 are described. Mature unfertilized eggs were pelagic and spherical with a homogeneous and unsegmented yolk containing several oil droplets. Eggs were equipped with long filaments. Fertilized eggs ranged in diameter from 1.58 to 2.05 mm, with a mean (± SD) of 1.75 ± 0.10 mm. Embryonic development lasted 211 h 32 min at a mean temperature 19.2°C. Newly hatched yolk-sac larvae measured 4.5 ± 0.15 mm total length. The yolk was completely absorbed by day 3 after hatching. Changes in length and shape of yolk-sac larvae and larvae during the first six days after hatching are also presented.

Mots-clés: Atherina boyeri - Atherinidae - Development - Embryo - Larvae
PDF visible pour tous