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al.com

A widespread fish kill is underway on Mobile Bay. Dead fish litter the bottom in the shallows surrounding a Fairhope boat ramp.

 

The fish kill on Mobile Bay appears to be affecting primarily filter-feeding fish such as menhaden, sardines, alewives and shad.

 

Widespread fish kill underway in Mobile Bay

 

A widespread fish kill is underway across Mobile Bay. It appears to be affecting primarily filter-feeding fish such as menhaden, sardines, alewives and shad.

Dead fish are present in the shallows and on beaches on both sides of the bay, from Point Clear to Daphne on the eastern shore and from Arlington Point south to Fowl River on the western shore. Dead and dying fish also dot the surface of the bay, from one side to the other.

The kill does not appear to be related to a red tide bloom occurring in the Gulf of Mexico and around Dauphin Island. Instead, the bloom in the upper bay appears to be another species of algae with a similar neurotoxic effect on fish.

Fish affected by the algae swim in a markedly erratic fashion, zipping straight ahead for a time, then falling into lazy circles, often swimming on their side or even upside down.

 

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