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Which is the largest cephalopod in the world?

Event the largest, the giant squid, grows to its gargantuan size in just a few years. The only exception is the nautilus which can live much longer. Octopus are the best known of the cephalopods with their charismatic personalities, intelligence, and diversity.

What are the physical characteristics of a cephalopod?

Characteristics of Cephalopods. All cephalopods have a ring of arms surrounding their head, a beak made of chitin, a shell (although only the nautilus has an exterior shell), a merged head and foot, and eyes that can form images. Cephalopods are intelligent, with relatively large brains. They are also masters of camouflage,…

Are there any cephalopods that can tolerate fresh water?

None of them can tolerate fresh water, but the brief squid, Lolliguncula brevis, found in Chesapeake Bay, is a notable partial exception in that it tolerates brackish water.

When did cephalopods first appear in the ocean?

The cephalopods are a diverse class of mollusks (a group that also includes snails and bivalves) that emerged during an explosion of animal diversity in the oceans during the Cambrian period, over 500 million years ago (mya). Today, scientists divide the living cephalopods into three groups, called superorders.

When was cephalopods of the world synopses series carried out?

CEPHALOPODS OF THE WORLD Synopses series. Indo-Pacific area carried out in 1979. Information on habitat, biology and fisheries was mostly gathered from literature by the third author. prepare d in collaboration with FAO’s Fishery Information, Data and Statistics Service.

When was the FAO cephalopod species catalogue created?

FAO Fish. Synop., (125)Vol. 3:27 7 p. producing with financia1 support from UNDP. The series was initiated in 1980 with the periodically with similar catalogues for other groups of major interest to fisheries. potential interest to mankind. It is aimed primarily at individual workers and institutions concerned with cephalopod fisheries.