Ascidiacea | 
Phlebobranchia | 
Cionidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Sessile; depth range 0 - 1000 m (Ref. 1603).  Temperate; 81°N -   25°N, 45°W -   42°E			
			
			
				
			
			
			
				Northeast Atlantic, Arctic and Mediterranean. Introduced in the Indo-Pacific, South Atlantic, and Sub Antarctic Region. Tropical to polar.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm Max length : 15.0 cm TL male/unsexed; (Ref. 1603)			
			
			
						
			
			
			
			
				
					Assumed maximum total length from Refs. 1603, 2268. Known from subtidal to moderate depths (Ref. 7726).  Attached to hard substrates (Refs. 1369, 7726).  Benthic, marine; on ships' hulls, and harbour installations (Ref. 1134).  Favours shaded locations such as covered floats (Ref. 1749).  Solitary (Refs. 2268, 7726).  Suspension-feeding (Ref. 3270).				
			
			
			
			
			
				Life cycle and mating behavior				
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
			
			
				
					Members of the class Ascidiacea are hermaphroditic; both cross- and self-fertilization is typical.  Life cycle:  Eggs develop into lecithotrophic larva before metamorphosing into benthic adults.				
			
			
			
			
			
				Jagerskiold, L.A. 1971 A Survey of the Marine Benthoic Macrofauna along the Swedish West Coast 1921-1938. Acta Regiae Societatis Scientiarum et Litterarum Gothoburgensis. Zoologica 6:1-146. (Ref. 1369)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Ref. 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Ref. 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
									
			
			
			
			
			
			
			
			
				Human uses  
			
			
							
			
			
				 | FishSource | 			
			
			
			
			
			
Tools
			
			
			
			
				
					More information				
				
					 Trophic EcologyFood items (preys)
Diet composition
Food consumption
Predators
  Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae   PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				Internet sources
			
			
			
			
			
				Estimates based on models
			
			
			
									
						Preferred temperature  					
				 (Ref. 
115969): 1.9 - 14.4, mean 7.1 (based on 1476 cells).			
 
			
			
			
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Low vulnerability (10 of 100).					
				
						
						
			
									
						Price category  					
					
					Unknown.