Inshore Squid swimming in the blackwater and hiding in an ink cloud, with another squid

inshore squid doryteuthis loliginidae mollusca cephalopoda squid ink ink cloud inking squid inking cephalopod ink blackwater myopsida mollusk black water diurnal diurnal vertical migration pelagic open ocean marine behavior underwater world deep water pelagic zone oceanic life open ocean life marine invertebrates pelagic creatures blackwater species aquatic behavior cephalopod inshore cephalopod marine wildlife ocean habitats blackwater footage cozumel marine life underwater creatures squid swimming behavior cephalopod movement blackwater diving oceanic squid camouflage escape mechanism defense strategy hiding strategy protection