Cubozoa | 
Carybdeida | 
Tripedaliidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Pelagic.  Tropical			
			
			
				
			
			
			
				Indo-Pacific and Western Central Atlantic.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm Max length : 1.4 cm WD male/unsexed; (Ref. 121705)			
			
			
						
			
			
			
			
				
					Known for its unique courtship behavior (Ref. 116531).  Strictly night active; sits inactively, attached to its substrate during the day.  Co-localized (in Okinawa) with the bioluminescent dinoflagellate Pyrocystis noctiluca which is constantly induced to emit light by encounters with planktonic crustaceans. Behavioral experiment validated its use of vision while hunting: it locates high-prey densities using  abundant bioluminescent signals/flashes from P. noctiluca.  Predominantly associated with coral reefs where it hunts largely for different planktonic crustaceans in surface waters at night (Ref. 116832).				
			
			
			
			
			
				Life cycle and mating behavior				
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
			
			
				
					Life cycle:  Planulae in the gastral pocket of the female medusa are released into the water and will later settle and metamorphose into polyps and undergo budding and will metamorphose into a single medusa (Refs. 116531, 116543).				
			
			
			
			
			
				Bennett, C.L., M.D. Nicholson and R.B. Erdman 2011 First record of Copula sivickisi (Cnidaira:  Cubozoa) in the tropical Western Atlantic Ocean:  an enigmatic occurrence from San Salvador Island, Bahamas. The 14th Symposium on the Natural History of the Bahamas, 5p. (Ref. 116531)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Ref. 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Ref. 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
					  Harmless				
			
			
			
			
			
			
			
			
				Human uses  
			
			
							
			
			
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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).