A monster known as “the scavenger of the deep” has amazed its owners at an aquarium by “fasting” for more than four decades.
The massive men isopod, known as No. 1 to differentiate it from the two other massive isopods kept at Toba Aquarium in Mie Prefecture, last ate in Jan 2009, when it was fed a whole equine spanish mackerel.
The isopod wolfed down the seafood, bone fragments and all, in just five moments. But it has not consumed anything since, with Feb. 10 tagging 1,500 times without meals.
The crustacean was delivered to the aquarium from the Beach of South america in Sept 2007, calculating 29 cm and with a weight of 1 kg, and despite its deficiency of meals still looks completely healthier, the owners say.
“We have done all we probably can,” said Takeya Moritaki, who is accountable for the monster.
Moritaki said he has tried an variety of foods, such as squid tentacles and saury, but the isopod has ignored them all.
Little is known about the chemistry of the animals, which reside in strong water in the Beach of South america and in the Carribbean and which stay off deceased animals and seafood.
It continues to be a secret why the isopod instantly ceased consuming and why it has stayed healthier.
“Giant isopods are always in a condition of semihibernation because they do not know when they can eat, so they restrict their power on respiration and other actions,” said Taeko Kimura, a sea ecologist at Mie School.
“For that objective they sometimes keep a lot of fat in their livers, so maybe No. 1 still has a resource of power in its system, and that is why it still has no hunger.”
The isopods are kept in a reservoir that uses synthetic sea water so it is extremely unlikely to produce organic ingredients such as plankton and sea plankton that No. 1, which is about the same dimension as its colleagues in the reservoir, can nourish on.
The aquarium was formerly house to a massive isopod that passed away of organic causes, despite having a proper and balanced hunger, creating No. 1′s great wellness even more strange.