| 词条 | Aplidium solidum |
| 释义 |
| regnum = Animalia | phylum = Chordata | subphylum = Tunicata | classis = Ascidiacea | ordo = Enterogona | subordo = Aplousobranchia | familia = Polyclinidae | genus = Aplidium | species = A. solidum | binomial = Aplidium solidum | binomial_authority = (Ritter & Forsyth, 1917)[1] | synonyms = *Amaroucium solidum Ritter & Forsyth, 1917
| synonyms_ref = [1] }} Aplidium solidum is a species of colonial sea squirts, a tunicate in the family Polyclinidae. It is commonly known as the red ascidian or sea pork. DescriptionAplidium solidum is a compound tunicate forming sheets or slabs up to 20 cm across on rocks and other hard substrates. The tunic is gelatinous but firm in consistency, 2 to 3 cm thick and a red or pink colour. The individual zooids are bright red, 12 mm long and arranged in small systems. There are usually 13 to 15 rows of gill-like perforations in the pharynx of each.[2][3]DistributionThe type location of Aplidium solidum is Pemba Island, Tanzania and it is also found in Australian waters.[1] It occurs on the west coast of North America from British Columbia south to California where it is common on rocks, especially among the holdfasts of kelp forests, and pilings.[2] It occurs in the intertidal zone and at depths down to 40 metres.[3] BiologyAplidium solidum is a filter feeder. Water is sucked into the interior of the organism through an oral aperture and then expelled through a larger one, common to all the zooids in the system. Phytoplankton and other small organisms get trapped in mucus threads secreted by the endostyle.[3]This tunicate breeds in the spring and summer and broods its larvae in its atrial cavity.[3] The nudibranch, Hermissenda crassicornis, feeds on this tunicate.[2] References1. ^1 2 Aplidium solidum (Ritter & Forsyth, 1917) World Register of Marine Species. Retrieved 2011-11-21. {{Taxonbar|from=Q4779979}}2. ^1 2 Aplidium solidum SeaNet. Retrieved 2011-11-21. 3. ^1 2 3 Aplidium solidum WallaWalla. Retrieved 2011-11-21. 2 : Enterogona|Animals described in 1917 |
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