 And that really stresses out the fish, which are used to colder temperatures. Eric Slokowicz with the Maryland Department of Natural Resources says also off-limits striped bass in the Chesapeake Bay and its tidal tributaries. This is to protect the population of fish and avoid additional mortality. Now there are two fish you're encouraged to still go after, snakehead and blue catfish, since both are invasive species and... Have an impact on our local native fish.