within 8 months the crabs had become of you menace they would cut the fishing nets eat the fish and divonne anything else they could find they became such a problem that the fisherman nicknamed them di ash after the notorious militant group islamic state the blue crab is native to the into a pacifist region they came here via the red sea and the suez canal like most of the roughly $1000.00 non-native species that have rich the mediterranean ats tunisia's national institutes of marine sciences and technology also ben abdallah and her team is studying the blue crabs. the scientists akiane to learn more about this destructive species how fast to the crabs grow how quickly do they reproduce and how do they impact other species when they arrive in a new area to help answer these questions they're analyzing the contents of the crab still much. time on. blue crab is an extremely verey show species. and even the crabs are basically insatiable yourself feed on all kinds of prairie. prawns for example also eat several of pads like squid on the fish and they prey on the fish that live in the gulf of c