[3] I. argentinus is most prevalent along the coasts of South America, in Argentina, Brazil and in the Falkland Islands (Malvinas) in the Patagonian shelf.

Some of the largest fisheries in the world are along these coasts, capturing millions of pounds of these shortfin squid a year.

On the other hand, predators of the Argentine shortfin squid include marine mammals, fishes, and birds.

Mature squid like to migrate northward to spawning grounds, travelling closer to sea floor at night and by the surface during the day.

[9] This squid is small, starting at only one millimeter and growing to a maximum body length of approximately one foot, while its tentacles are 9 inches long.

Although so many Argentine shortfin squid are removed from the coasts every year, populations bounce back, probably because of their short lifespan.