mummichogs

Currently reading environmental impact statement documents for the Oak Point Link, and mummichogs repeatedly came up. One of the hardiest fish species in the northeastern United States, mummichogs may be the only fish species present in heavily polluted waters. 

The reports I'm reading hold out little hope for the Harlem River (it's amazing how much differently we perceive our urban waterways today) and point to the abundance of mummichog in its waters as a symptom of its highly degraded nature.