Something orange found in lobster, what is it?

I think this is Rogen (Corail), as here too:

and

https://www.kochbar.de/rezept/420614/Fish-Hummer-Cocktail.html

Corail (Fr.: corail = coral) refers to the rye of female lobsters (lobster roe), large river cancers (cancers) or other crustaceans, as well as the orange rye bag of the scallop. Corail is green to black green in the uncooked state. Only after heating it becomes coral red; Therefore the French name comes also.

Of:

https://www.foodlexikon.de/c0000310.php

https://foodly.tn/de/tips/5-3849/