Scientists Discover “Grumpy” New Fish Species in the Red Sea

Bright Orange Grumpy Dwarfgoby
The Grumpy dwarfgoby, Sueviota aethon. Credit: Viktor Nunes Peinemann

The grumpy dwarfgoby, a new fish species with a menacing look, has been discovered in the Red Sea, emphasizing the importance of conservation efforts in this environmentally sensitive area.

Researchers from the King Abdullah University of Science and Technology and the University of Washington have discovered a new fish species with a perpetual frown, the grumpy dwarfgoby.

Appearance and Habitat of the New Fish

Although the grumpy dwarfgoby is less than 2 centimeters long, its large canines and fierce expression give it a rather intimidating look for such a small fish.

Lucía Pombo-Ayora, who gave the species its grumpy common name, comments on its distinctive appearance: “I imagine in its own tiny world, it is a fearsome predator. Its grumpy expression and large canines certainly make it look the part, despite its small size.”

Light Orange Grumpy Dwarfgoby
The Grumpy dwarfgoby, Sueviota aethon. Credit: Viktor Nunes Peinemann

The species’ bright red coloration helps it blend into its natural habitat. It can be found on the walls and overhangs of coral reefs, covered in red coralline algae. There, it lives in small holes and crevices, using its large canines to capture tiny invertebrates. The grumpy dwarfgoby appears to be a relatively rare species, which is likely why it remained undiscovered until now.

Importance of Biodiversity and Conservation Efforts

The researchers found the first specimens in the Farasan Banks in Saudi Arabia, with additional specimens later found near Thuwal in the Red Sea. It was researcher Viktor Nunes Peinemann who first found it during a diving expedition to explore the coral reef fish diversity. Initially, the researchers thought they had rediscovered the fiery dwarfgoby, Sueviota pyrios, which is only known from a single specimen collected in 1972. However, upon closer examination, they realized they were dealing with an entirely new, undescribed species.

CT Scan of Grumpy Dwarfgoby Skull
A CT scan of the skull of The Grumpy dwarfgoby, Sueviota aethon. Credit: Viktor Nunes Peinemann

“The ongoing discovery of distinctive new species like this grumpy dwarfgoby shows how much biodiversity remains undiscovered in the Red Sea,” Viktor Nunes Peinemann explains. “This is concerning given the recent environmental changes in the region. In some cases, species could go extinct before we even describe them.”

The region is known for its high levels of endemic species and the Grumpy dwarf goby is another addition to this unique fauna. Much of the Red Sea has experienced major disturbances resulting from climate change in recent years, including widespread coral bleaching and mortality. The fact that new species are still being discovered in this rapidly changing environment highlights the urgency of continued research and conservation efforts, the researchers believe.

They have published their discovery in the open-access scientific journal ZooKeys.

Reference: “The Grumpy dwarfgoby, a new species of Sueviota (Teleostei, Gobiidae) from the Red Sea” by Viktor Nunes Peinemann, Lucía Pombo-Ayora, Luke Tornabene and Michael L. Berumen, 12 September 2024, ZooKeys.
DOI: 10.3897/zookeys.1212.121135