Eudistoma diasterum is a species of colonial tunicate belonging to the family Polycitoridae. It is a fascinating organism found in marine environments, contributing to the biodiversity of these ecosystems.
Description and Characteristics
Eudistoma diasterum is a colonial tunicate, meaning it lives in groups of interconnected individuals called zooids. These zooids are typically small, usually less than a few millimeters in size, and they are embedded in a common gelatinous matrix. The colonies themselves can vary in size and shape, but they are often characterized by their irregular, lobed form.
Habitat and Occurrence
Eudistoma diasterum is primarily found in the intertidal zone and shallow subtidal areas of the Atlantic Ocean. Its distribution spans from the Caribbean Sea to the northern coast of Brazil, making it a prominent inhabitant of these warm, tropical waters. The species thrives in a variety of habitats, including rocky reefs, mangrove forests, and seagrass beds, demonstrating its adaptability to different marine environments.
Taxonomy
Eudistoma diasterum belongs to the class Ascidiacea, a group of marine invertebrates known as sea squirts. Within this class, it is classified within the order Aplousobranchia, which includes tunicates lacking a respiratory siphon. Finally, it is placed within the family Polycitoridae, a group characterized by their colonial nature. This taxonomic classification highlights the evolutionary relationships of Eudistoma diasterum within the broader context of marine invertebrates.
Feeding
Eudistoma diasterum, like other tunicates, is a filter feeder. They draw water into their bodies through an incurrent siphon, filtering out microscopic food particles such as phytoplankton and bacteria. This process is essential for their survival and contributes to the balance of the marine ecosystem by removing excess nutrients from the water.
Image References