New Snapper Species Identified in Brazil

ARLINGTON, Virginia, March 12, 2007 (ENS) Ė A large fish mistaken by scientists as a dog snapper, a popular commercial fish in Brazil, is actually a new species identified among the reefs of the Abrolhos region of the South Atlantic Ocean.

Researchers Rodrigo Moura of Conservation International and Kenyon Lindeman of Environmental Defense made the discovery, identifying the fish as Lutjanus alexandrei, a new snapper species that belongs to the Lutjanidae family.

"This discovery that a large, popular fish is a species new to science shows how little we know about the oceans that surround us," Moura said.

The new species has been mistaken for Lutjanus jocu, known as the dog snapper.

"It looks like other snapper species found in the Caribbean and eastern United States, as well as the dog snapper caught by fishermen here in Brazil, but it is a distinct species with different markings and color," Moura said.

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The new snapper, Lutjanus alexandrei. (Photo by Rodrigo Moura courtesy CI)
The new species is named for 18th century naturalist Alexandre Rodrigues Ferreira, whose extensive work in the Brazilian interior remains largely unknown.

Moura and Lindeman spent five years observing Lutjanus alexandrei to analyze its characteristics and determine the distinct features.

They found that it occurs from the state of Maranhao to the southern coast of the state of Bahia, and its habitats include coral reefs, rocky shores, coastal lagoons with brackish water, mangroves, and other shallow habitats.

Juveniles requiring more food and protection live in mangroves, then migrate to reef habitat and deeper areas as adults.

"Several species spend some of their lives in these different yet connected habitats," Lindeman said. "Thatís why itís so important to develop integrated conservation strategies that include mangroves, deep reefs, and other interdependent ecosystems."

The discovery made by Moura and Lindeman is published in the peer-reviewed international science journal "Zootaxa." The study provides a revised key for identifying all Lutjanus species in the western Atlantic.

It also offers evidence that the new species completes its life cycle in different but interdependent marine habitats, such as coral reefs and mangroves.

Twelve species of the family Lutjanidae, including the new discovery, are now identified in the western Atlantic Ocean.

They include Lutjanus griseus and Lutjanus apodus, two species restricted to the Caribbean and eastern coast of the United States but previously believed to occur in Brazilian waters until the discovery of Lutjanus alexandrei.

According to Moura and Lindeman, the discovery shows the need for more comprehensive studies of Brazilís reef fish populations, particularly in the northeastern region that includes the Abrolhos area, which contains the nationís largest concentration of coral reefs.

Some of the research was conducted under the Marine Management Areas Science program, a Conservation International initiative intended to improve marine biodiversity conservation and the welfare of local communities.

In Brazil, the Marine Management Areas Science program was established in the Abrolhos region in October 2005.