Malacostraca | 
Isopoda | 
Sphaeromatidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Benthic; depth range 0 - 10 m (Ref. 87801).  Subtropical			
			
			
				
			
			
			
				Southeast Pacific and Southeast Atlantic:  Chile, Tristan da Cunha, and St. Helena.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm			
			
			
						
			
			
			
			
				
					It is found in intertidal and subtidal zones, mainly on turf algae, shell rubble, gravel, kelp holdfasts, and often at exposed rocky shores.  The graze on living algae and also feed on detritus (Ref. 87801).				
			
			
			
			
			
				Life cycle and mating behavior				
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
			
			
				
					Members of the order Isopoda are mostly gonochoric.  Mating behavior:  Mating usually occurs before and sometimes during the parturial molt.  Sperm transfer is indirect.  Life cycle:  Eggs are brooded in the marsupium, which later hatch into manca postlarva before developing into adults.				
			
			
			
			
			
				Bruce, N.L. 2006 A new species of Ischyromene Racovitza, 1908 (Sphaeromatidae: Isopoda: Crustacea) from intertidal marine habitats in New Zealand. Zootaxa 1220:19-34. (Ref. 8257)
			
			
			
			
			
			
			
					
						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): 14.2 - 21.9, mean 19.3 (based on 181 cells).			
 
			
			
			
			
			
						
						
						
			
									
						Price category  					
					
					Unknown.