Uropthalmus are commonly found in brackish water, in fact there is a population that live and breed in the 35ppt saline sea water around Isla Mujeras Mexico They may at some point be de-lumped into a separate species.
I have found them in many parts of Florida.
And I would not be surprised if cool tolerant individuals are evolving, moving their range a little more northward every day.
Consider the genus of cichlids Gymnogeophagus, that live in southern South America where small bodies water ice over in winter. And these Gymnogeophagus need a winter cooldown to survive.
I have found them in many parts of Florida.
And I would not be surprised if cool tolerant individuals are evolving, moving their range a little more northward every day.
Consider the genus of cichlids Gymnogeophagus, that live in southern South America where small bodies water ice over in winter. And these Gymnogeophagus need a winter cooldown to survive.