Astropecten armatus, commonly known as the “Armed Starfish,” is a species of starfish belonging to the family Astropectinidae. This marine invertebrate is found in various parts of the world, showcasing its adaptability to diverse environments.
Description & Characteristics
Astropecten armatus is characterized by its distinct star-shaped body, typically measuring up to 15 centimeters in diameter. Its arms, or rays, are relatively short and blunt, giving it a compact appearance. The surface of the starfish is covered in numerous small, granular spines, providing a rough texture to the touch. These spines, especially prominent around the edges, are responsible for its common name, “Armed Starfish.”
Habitat and Occurrence
Astropecten armatus prefers sandy and muddy substrates in coastal regions. It thrives in a variety of marine environments, including the intertidal zone and the shallow subtidal zone. This adaptable species can be found in both temperate and tropical waters, making it a common sight in various parts of the world.
The species is particularly prevalent in the , , , and . This broad distribution reflects its resilience and ability to adapt to diverse environmental conditions, contributing to its success as a prevalent species within these marine zones.
Taxonomy
Astropecten armatus is classified within the Class: Asteroidea, Order: Paxillosida, and Family: Astropectinidae. This classification places it within the larger group of starfish, highlighting its evolutionary history and relationships with other marine invertebrates.
Feeding
Astropecten armatus is a carnivorous predator, primarily feeding on various invertebrates, including mollusks, crustaceans, and polychaetes. It employs a unique feeding strategy, using its strong arms to pry open the shells of its prey. Its powerful jaws and digestive system efficiently break down the soft tissues, providing it with the nutrients necessary for survival.
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