Lion Fish – Species of the Reef


The lionfish blends very well into it’s environment. The photo above was taken by one of our guests, Hans Knudsen, trying to capture the ravine and beautiful fans. He was surprised to see a lion fish in the front right of the picture when he got home and looked at his photos from the trip.

A Lionfish is any of several species of venomous but not aggressive marine fish in the genera Pterois, Parapterois, Brachypterois, Ebosia or Dendrochirus, of the family Scorpaenidae. The lionfish is also known as the Turkey Fish, Dragon Fish, Scorpion or Fire Fish. They are notable for their extremely long and separated spines, and have a generally striped appearance, red, green, navy green, brown, orange, yellow, black, maroon, or white.
The lionfish is native to the tropical Indo-Pacific region of the world, but various species can be found worldwide. Due to a recent introduction, the lionfish has recently been spotted in the warmer coral regions of the Eastern Atlantic Ocean and Caribbean Sea. Lionfish are an invasive species in the Atlantic Ocean and the Caribbean Sea regions. Successful breeding of the lionfish in captivity has not been reported. In early 2009, the Lionfish was spotted in the Florida Keys, seemingly increasing its range.
There are many types of lionfish that vary in size. The common lionfish generally reaches a size of 30-35cm, while smaller lionfish, like the Fuzzy Dwarf, are typically the size of a tennis ball, not including fins.
We encourage everyone (divers and fishermen) to be extremely cautious and avoid contact with the venomous spines of the lionfish. Although they are not deadly, they are very painful. Lionfish are not aggressive toward humans and will almost always keep their distance when given the opportunity, so they pose a relatively low risk.
The lionfish is one of the most venomous fish on the ocean bottom floor. Lionfish have venomous dorsal spines that are used purely for defense. When threatened, the fish often faces its attacker in a head-down posture which brings its spines to bear. However, a lionfish’s sting is usually not fatal to humans.
Lionfish are voracious predators. When hunting, they corner prey using their large fins and then use their quick reflexes to swallow the prey whole. In captivity, lionfish can be trained to eat frozen brine shrimp, mysis, and krill.
However the lionfish have very few natural predators, but the grouper and other lionfish have been found with lionfish remains in their stomachs. Below is a clearer picture of the lionfish out in the open on a small coral outcrop.
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