Videos

If you want to use any of these videos, please contact Calocean / Roger Villanueva (roger@icm.csic.es). Rotational behaviour of Illex

coindetii embryo (developmental stage 18-19), aged 91 hours (4 days) after in vitro fertilization and incubated at 17 °C.

 

Premature hatchlings of Illex coindetii (developmental stage 25-26), aged 163 hours (7 days) after in vitro fertilization and incubated at 17 °C.

 

Hatchling of Illex coindetii (developmental stage 30), aged 258 hours (10 days) after in vitro fertilization and incubated at 17 °C. Note the hatchling

characteristics: ink sac and fins well developed as weel as a retracted proboscis.

 

Illex coindetii aged 425 hours (18 days after in vitro fertilization and 8 days after the hatchling stage 30). Note the remarkable ability for proboscis extension.

The retraction of the head inside the mantle is probably a stress response.