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European and veined squid diet analyzed in the Mediterranean - FIS


Staff member
Sep 4, 2006
Interesting diet quote from the above article (note the transition to fish as they age and the consumption of worm when close to reproducing)
The results show that, the same as with Atlantic populations, the two species of squid mainly feed on fish. Despite their potential overlapping, they prey on different species. While the European squid prefers coastal fish like jack mackerel or picarel, the veined squid consumes mesopelagic fish (known as horned lantern fish) which inhabits deeper waters.

Both species diet change with size, though curiously the change occurs at a larger size in the European squid. In the case of the latter, juveniles prefer prey that live near the bottom (small crustaceans and gobies) and then change to a diet based on benthopelagic and larger (e.g. sparidae) fish diet.

In spring, there is a change in diet, probably related to their reproductive phase. This change involves an increase in the intake of benthic species (bottom) and especially the consumption of polychaete worms rich in omega 3, which would improve their reproductive potential.

In the case of the veined squid, however, a diet change, related with size, has only been observed during the second half of the year.

In summer, the smaller specimens feed on small crustaceans and pelagic gobies (transparent goby), while larger ones eat krill and lantern fish. The importance of krill in the diet of veined squid had not been previously described in Atlantic waters.

Thanks to existing knowledge on vertical migration of krill reaching different depths depending on the time of year, this new work shows that during the summer and autumn, larger veined squid specimens, move deeper in the water column to feed on these and other mesopelagic preys.

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