Ascidiacea, commonly known as the ascidians or sea squirts, is a paraphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. [2] Ascidians are characterized by a tough outer test or "tunic" made of the polysaccharide cellulose. Ascidians are found all over the world, usually in shallow water with salinities over ...

4 天之前 · Ascidians (Phylum: Chordata, Class: Ascidiacea), or sea squirts, are the largest and most diverse class of the sub-phylum Tunicata (also known as Urochordata). They comprise approximately 3000 described species found in all marine habitats from …

Sea squirt, any member of the invertebrate class Ascidiacea (subphylum Urochordata, also called Tunicata), marine animals with some primitive vertebrate features. Sea squirts are primarily sessile (permanently fixed to a surface), potato-shaped organisms found in all …

To European Nucleotide Archive, ENA (Ascidiacea) To Genbank To NHMUK collection (Ascidiacea Blainville, 1824; NON-TYPE; NHMUK:ecatalogue:9473965) To The Arctic Traits Database (11 traits) To Wikipedia To Yale Peabody Museum of …

Ascidiacea (commonly known as the ascidians or sea squirts) is a paraphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. Ascidians are characterized by a tough outer 'tunic' made of the polysaccharide cellulose.

2011年6月20日 · This review provides a comprehensive overview of the current knowledge regarding the global biodiversity of the class Ascidiacea, focusing in their taxonomy, main regions of biodiversity, and distribution patterns.

The class Ascidiacea presents vast opportunities for research in the fields of evolution and development, physiology, natural products, and marine bioinvasion. Yet, there are many areas around the world that are relatively poorly known, and in others the available data should be updated and revised.

Sea squirts, also called tunicates, are marine filter feeders that might surprise you with their hidden connection to humans. Unlike their mobile relatives, adult sea squirts typically live a sessile (attached) lifestyle, often forming colonies on rocks, piers, or other underwater structures.. Their sac-like bodies and vibrant colors might resemble sponges, but …

Ascidiacea In subject area: Biochemistry, Genetics and Molecular Biology Ascidians or tunicates are marine animals that live either buried in the sand/mud or permanently attached to a solid object, rich in biologically active secondary metabolites.

Ascidiacea (Sea squirts) Phylum Chordata. Class Ascidiacea. Number of families 24. Thumbnail description Benthic, solitary, and colonial species whose adults are sessile, almost exclusively fixed, firmly attached, or lying free on the sea floor; they …