Observaciones sobre embriones y desarrollo embrionario a partir de una masa de huevos de calamar gigante Dosidicus gigas desovada en cautiverio

Mitsuo Sakai; Dharmamony Vijai; Carmen Yamashiro Guinoza; Toshie Wakabayashi

Autores/as

Mitsuo Sakai Instituto del Mar del Perú
Dharmamony Vijai Instituto del Mar del Perú
Carmen Yamashiro Guinoza Instituto del Mar del Perú
Toshie Wakabayashi Instituto del Mar del Perú

Palabras clave:

Dosidicus gigas, masa de huevos, desove en cautiverio

Resumen

Masas de huevos fueron desovadas por un calamar gigante Dosidicus gigas (longitud de manto 37,5 cm) mantenido en un tanque de 500 litros, a bordo del BIC Kaiyo Maru durante un crucero conjunto de Japón-Perú en aguas peruanas, entre diciembre 2011 y febrero 2012. Parte de la masa de huevos se recolectó e incubó en un acuario de 10 litros y conservó a 20 °C. Los huevos tenían una envoltura gelatinosa única alrededor del corion. El diámetro de la envoltura gelatinosa era más del doble del diámetro del corion, el que permaneció claramente visible hasta que los embriones alcanzaron la etapa de desarrollo 18. La mayoría de los huevos estaban fertilizados y eclosionaron (Etapa 30) 6,5 días después del desove a 20 °C.

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