Check your regulations and if it doesnt say anything then if it's big enough keep it or eat it for dinner! Wild fish are more sensative to water so becareful!
Thats why everyone should check with their local DNR or Game Warden, before going out. Laws and rules vary by state, and even by mode of capture, and limit you can have. Its always better to check and be sure than to rely on Forum Info. The wardens can and will under certain circumstances take all your junk just like a drug bust, and at least there may be a healthy fine to pay.