Ascidiacea | 
Phlebobranchia | 
Agneziidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Sessile; depth range 201 - 1223 m (Ref. 2588).  Polar			
			
			
				
			
			
			
				Antarctic.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm			
			
			
						
			
			
			
			
				
					Minimum depth from Ref. 3435. Known from depths of 201 to more than 1000 m (Ref. 3435).				
			
			
			
			
			
				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.				
			
			
			
			
			
				Ramos-Esplá, A.A., J.A. Cárcel and M. Varela 2005 Zoogeographical relationships of the littoral ascidiofauna around the Antarctic Peninsula, in the Scotia Arc and in the Magellan region. Sci. Mar. 69:215-223. (Ref. 3435)
			
			
			
			
			
			
			
					
						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
  Population dynamicsGrowthMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionAbundance   Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae   PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				Internet sources
			
			
			
			
			
				Estimates based on models
			
			
			
									
						Preferred temperature  					
				 (Ref. 
115969): -0.4 - 0.8, mean 0.4 (based on 176 cells).			
 
			
			
			
			
			
						
						
						
			
									
						Price category  					
					
					Unknown.