Fast facts
Common name: Chinese softshell turtle
Scientific name: Pelodiscus sinensis
Range in MA: Greater Boston area (extent of establishment unknown)
Similar looking species: spiny softshell turtle
Identification tip: pancake-like soft shell with a long narrow nose
Description
Asian softshell turtles are a small to medium-sized species with an average shell length of 4.5-10 in. They are an olive grey color with multiple, yellow-bordered black spots.
How they ended up in MA
Native to China, Japan, Vietnam, and Taiwan, this turtle was a traditional food source from the 1800s up until World War II. They are sometimes traded as food items in Massachusetts. Asian softshell turtles are also known to be in the pet trade and often pet owners will release their turtles when they do not want or cannot take care of their pet anymore. Animals released into the wild have the potential of transmitting exotic diseases to native species, and out-competing native species. If specimens of this (or any other non-native turtle) are encountered, please report them to the Division of Fisheries & Wildlife’s Field Headquarters or any District office of the agency. Never release any non-native species into the wild.
Why are they a problem?
Asian softshell turtles live in freshwater and can be found in rivers, ponds, and lakes. They stay hidden at the bottom of waterbodies and only come up for air. Females can produce 4-5 clutches of eggs in a single year. The impact of this introduced species is unknown, but it is possible it to be negative for native species due to their highly carnivorous behaviors and ability to remain undetected. More research needs to be done in Massachusetts to determine their threat to this region.