Whether and what effects this invasion has on the fauna and flora native to the Mediterranean has not yet been adequately clarified.
As a food opportunist, this crustacean species has brought a decisive advantage, it does not have to suffer hunger, whether plants, algae, detritus or live fish, which are gladly once pulled out of fishing nets, everything is on the menu.
Many species of the family Xanthidae can be poisonous, although they themselves have no poisonous apparatus (poisonous teeth, poisonous spines, poisonous glands in the skin), the consumption of these crustaceans can even be fatal for humans. Such animals are considered passive-poisonous.
The toxins of crabs (saxitoxin and tetrodotoxin) are produced by endobacteria and stored in the flesh of the crab, these e are highly potent and similar to the neurotoxins of puffer fish and just as deadly.
In its raw and cooked meat, consumption of the crab meat is toxic to humans!
Please be sure to clarify whether the meat of these crabs is toxic or non-toxic before eating it!
Call an emergency doctor immediately at the first signs of poisoning (e.g. breathing problems, muscle cramps)! are classified as "poisonous", although it should be noted here that these crabs do not belong to the actively poisonous animals, but poisoning is possible if you should eat the meat of the crab.
Atergatis scrobiculatus Heller, 1861
Cancer orientalis Herbst, 1790
Carpilius marginatus Rüppell, 1830
Carpilius roseus Rüppell, 1830