Fish species included the tidewater goby, topsmelt, striped mullet, surfperch and Pacific staghorn sculpin. Some pistol shrimp species share burrows with goby fishes in a mutualistic symbiotic relationship. Fish that typically inhabit sloughs include tidewater goby, California killifish, mosquitofish, and topsmelt. Freshwater fish include the rare Asian arowana, along with marbled goby, harlequins and tiger barbs. Commonly kept saltwater species include Randall's shrimp goby and the watchman goby. The brackish water fish flagfin prawn goby ("Mahidolia mystacina") is the provincial fish. The tidewater goby is a federally listed endangered species that live near the Pacific coastline. Most important species are round goby, monkey goby, toad goby, and grass goby. Additional roles include Goby in "Bubble Guppies" and Haruna Kitumba in "Miles from Tomorrowland". The most popular catch is cultivated carp, followed by smelt and goby. When that happens both the shrimp and goby quickly retreat into the burrow. A further example is the goby, a fish which sometimes lives together with a shrimp. Another diverse group are the Perciformes (European perch, zander, ruffe, sand goby). The snake was helpful in keeping the population of goby fish in check. The grass goby is also a commercial fish in Italy.