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Lionfish Light The Way

picture of a Red Lionfish

The Red Lionfish, with its graceful fins and venomous spines, is creating a very serious problem since its invasion of the Gulf and Mediterranean waters.

As some of you may know, the Lionfish is a warm-water species from the Indo-Pacific waters.  Sporting venomous spines, they are a generalist, eating everything from fish nearly half their size, to crustaceans, shrimp, etc.  Having been introduced in the early 1990’s off the coast of Florida, they are taking over the Gulf and Caribbean waters.  Their venomous spines are an adaptation that indigenous species have no means of dealing with.  Their presence has been devastating to an already challenged ecosystem.  Starting from that one spot in Florida, and tracing back genetically to just 6 or 8 females released into the Gulf’s waters, they now cover a vast range, covering the entire Gulf and Caribbean region (see image further below.  As generalists, they are destroying the balances of nature, consuming and growing unchecked.  Sturdy, these beautiful fish are akin to the red-tailed hawks of North America; they can live on most anything and thrive in many conditions.  Their only bottleneck now is cooler waters; They don’t seem able to withstand waters further north, so spreading to the UK along the Gulf Stream is unlikely.  Read more