Blog: Crawdads: Naturalized Californians
Non-native crayfish, regardless of species, can (a) displace fish and native crayfish from cover, making them more vulnerable to predation, (b) reduce aquatic plant densities, making water clearer, © compete with fish for aquatic invertebrates as food, especially snails, and (d) displace native crayfish from their habitats. How much of all this they do in California ecosystems, however, is not well understood.