Hydrozoa | 
Limnomedusae | 
Olindiidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Pelagic; brackish; pH range: 4.0 - 15.0.  Subtropical			
			
			
				
			
			
			
				Black Sea:  Sea of Azov.  Introduced in Atlantic and Pacific Oceans.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm Max length : 5.6 cm WD male/unsexed; (Ref. 2376)			
			
			
							
				
				
					
						Often measures less than 40 mm and at most 56 mm in diameter; large manubrium with 4 very long frilly lips and no gastric peduncle; 4 radial canals, each with curtain-like gonads extending onto "arms" of the manubrium; several prominent centripetal canals extending upward in each quadrant of the ring canal; 600 tentacles; numerous statocysts around the bell margin, each with an indistinct ocellus; milky white umbrella and pink blush around the bell margin (Ref. 2376).					
				
				
						
			
			
			
			
				
					This is a true brackish water species (Ref. 128415).  Medusae released in late spring and early summer and rest on the bottom to  feed on small crustaceans (Ref. 2376).				
			
			
			
			
			
				Life cycle and mating behavior				
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
			
			
				
					Species listed only in medusoid stage (Ref. 1663, p. 18).  Medusae released in late spring and early summer; grow up as a cohort.  Medusae usually rest at the bottom, some rise to the surface (Ref. 2376).				
			
			
			
			
			
				Cairns, S.D., D.R. Calder, A. Brinckmann-Voss, C.B. Castro, D.G. Fautin, P.R. Pugh, C.E. Mills, W.C. Jaap, M.N. Arai, S.H.D. Haddock and D.M. Opresko 2003 Common and Scientific Names of Aquatic Invertebrates from the United States and Canada: Cnidaria and Ctenophore, Second Edition. American Fisheries Society Special Publication, no,28. XI+115. With CD-ROM. (Ref. 1663)
			
			
			
			
			
			
			
					
						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 dynamicsGrowth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
  Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae   PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				Internet sources
			
			
			
			
			
				Estimates based on models
			
			
			
							
			
			
			
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Low vulnerability (10 of 100).					
				
						
						
			
									
						Price category  					
					
					Unknown.