Abudefduf saxatilis, also known as the Sergeant Major, is a small species of tropical fish belonging to the family Pomacentridae. It is found in the warm coastal waters of the Atlantic Ocean, particularly in the western Atlantic region from the southeastern coast of the United States to Brazil, including parts of the Gulf of Mexico and the Caribbean Sea.
The Abudefduf saxatilis typically measures around 6 to 10 centimeters in length and has a compressed, oval-shaped body. It has a distinct coloration characterized by five vertical black bars on a yellow to silver body, hence the name "Sergeant Major" due to its resemblance to military insignia. This species is known for its social behavior, often forming large schools near rocky or coral reefs.
Sergeant Majors are omnivorous, mainly feeding on small invertebrates, algae, and plankton. They are known to have a high level of adaptability, being able to thrive in a variety of marine habitats, from shallow coastal areas to deeper offshore waters.
Due to their vibrant coloration and small size, Abudefduf saxatilis are popular in the aquarium trade, where they are often kept in community tanks with other non-aggressive species. They are relatively hardy and can adapt to various water conditions, making them suitable for both beginner and experienced aquarists.
In conclusion, Abudefduf saxatilis, or the Sergeant Major, is a small tropical fish species found in the Atlantic Ocean. It is characterized by its distinctive black bars and yellow to silver body and is known for its social behavior and adaptability in different marine environments.
