Demospongiae | 
Suberitida | 
Suberitidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Sessile; depth range 0 - 1100 m (Ref. 119523).  Polar			
			
			
				
			
			
				Distribution				
					Countries | FAO areas | Ecosystems | Occurrences | Introductions				
			
			
				Arctic, Northeast Atlantic and the Mediterranean.  Subtropical to polar.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm Max length : 10.0 cm WD male/unsexed; (Ref. 358)			
			
			
							
				
				
					
						Sponge of more or less spherical form.  Maximum diameter:  10 cm.  Smooth surface; comprising only some small channels; often even one and single.  Consistency charnue; not very elastic.  Variable coloring;  of orange to the marbled light blue.					
				
				
						
			
			
			
			
				
					Maximum diameter:  10 cm (Ref. 358). Established on the shells inhabited by the bernards the hermit, and attends primarily the muddy funds and with sandy tendency, more rarely the mattes racinaires of the underwater herbaria.  Biology:  the species is fixed primarily on the shells inhabited by Paguristes eremita, the Bernard the hermit.  The 2 partners being recipients of this association, one will speak about a true symbiosis.  This spongiae escapes thus from its condition from sedentary invertebrate, and a mobility acquires which allows him inter alia diffusing its gamètes more widely sexual.  Also benefiting from the food of the host, the sponge increases moreover the extent of its food resources.  The sponge having covered entirely the shell with the Bernard the hermit, continues his growth by increasing space and by preserving the direction spiral of the shell, the pagure does not need progressively to seek its growth of new refuges.  In addition, the spongiae secretes toxic and repulsive substances, which hold predatory shellfish remotely, which, in the final analysis, enjoys a higher protection and a flexible personal habitat (Ref. 358).				
			
			
			
			
			
				Life cycle and mating behavior				
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
			
			
				
					Members of the class Demospongiae are hermaphroditic.  Life cycle:  The zygote develops into parenchymella larva (free-swimming) before settling down on a substrate where it grows into a young sponge.				
			
			
			
			
			
				Göthel, H. 1992 Guide de la faune sous-marine: La Méditerranée. Invertébrés marins et poissons. Eygen Ulmer GmbH & Co. 318 p. (Ref. 358)
			
			
			
			
			
			
			
					
						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): 13.3 - 16.3, mean 14.3 (based on 24 cells).			
 
			
			
			
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Low vulnerability (10 of 100).					
				
						
						
			
									
						Price category  					
					
					Unknown.