In an article just published in the open-access science journal PloS One, the first appearance of lionfish off the Brazilian coast has been reported.

The invasion of the northwestern Atlantic by the Indo-Pacific lionfish has developed extraordinarily fast, and is expected to cause one of the most negative ecological impacts among all marine invasions. Despite the anticipation that lionfish would eventually extend their range throughout most of the eastern coast of South America, it had not been recorded in Brazil until now.

According to study leader Dr Yuuki Watanabe of the National Institute of Polar Research, Japan, "The physiological mechanism of keeping heat in the body is well understood. But, more a fundamental question is, why this unique evolution occurred in the first place. In other words, what kind of advantages does the fish gain from being warm-bodied?"

The new study, published in the journal PNAS (Proceedings of the National Academy of Sciences of the United States of America), reports "chemical and sensory analysis" of the historic liquid. It was led by Prof Philippe Jeandet, from the University of Reims in Champagne-Ardenne, France.