A recent study described a newly discovered species found in Panama. Known as Squatina mapama, it belongs to the angel shark species collected off the Caribbean coast of Panama.
The discovery pave the way for the first recorded angel shark species from the Central American Caribbean region. according to Ross Robertson, a co-author of the new paper and a staff of the Smithsonian Tropical Research Institute.
Genetic analysis helped identify Squatina mapama as a separate and new angel shark species of the genus, Squatina, from the Western Atlantic Ocean. The findings was based on the article published by the Smithsonian Tropical Research Institute in the Journal of the Ocean Science Foundation.
Discovery of Squatina Mapama
Squatina mapama was named after the Spanish Ministry of Agriculture, Fisheries and Food (MAPA), a Spanish government fisheries organization.
The discovery dates back between 2010 and 2011, when the Spain initiated and sponsored two research expeditions in Central America's Pacific and Caribbean coasts. The expeditions aimed at exploring the biodiversity of benthic organisms-marine species living on the ocean floor.
According to Science Daily, the physical characteristics of the Squatina genus are different from the conventional appearance of a shark. Memebers of the Squatina genus are flat-bodied sharks resembling stingrays.
Specifically, the Squatina mapama was described to possess "a broader pectoral and pelvic fins, a shorter head length, a narrower mouth, short fringed nostrils and barbels, a few large denticles on the top of the head, and the presence of scattered smaller spots on males, among others. The complex physical features of Squatina mapama prompted researchers to conduct genetic analysis in order to identify the exact species.
The authors of the paper described Squatina mapama as "small-crested angel shark." This is due to its short and narrow line of small scales or dermal denticles. Observation and identification of angel sharks from other individual species are difficult with the naked eye.
Squatina mapama has a strong physical resemblance to Squatina David, thus genetic analysis was required to recognize the species, according to the National Geographic.
Also read: First Study of World's Largest Marine Stingray Reveals Long-Distance Migration
Breakthrough for Further Studies
Overall, Squatina mapama is the fourth new species of Squatina discovered and identified in the Western Atlantic Ocean over the past decade. The Smithsonian Tropical Research Institute stated the total specific number of species in the Squatina genus has not been created.
Despite this lack of numeric data, the institute said the recent study showed the forensic importance of genetic analysis. In light of the recent study, further research biological diversity of species can acknowledge the promising results using genetic analysis when it comes to identifying the true biological diversity of a genus.
The International Union for the Conservation of Nature considered a large number of angel shark species as endangered. The species has existed since the late Cretaceous period-approximately 145 to 66 million years ago
Studies in the future may not only shed more information on our understanding of the angel shark species but may also help in the conservation of this endangered species.
Related article: Lifeless Deep-Sea Shark With Pig-Like Face Washed Ashore in Mediterranean Beach
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