Sagittoidea | 
Phragmophora | 
Eukrohniidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Pelagic; depth range 200 - 500 m (Ref. 1658).  Temperate			
			
			
				
			
			
			
				Northwest Pacific:  Kuril Islands.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm			
			
			
						
			
			
			
			
				
					Depth range is based from type locality (Ref. 1658); to be replaced with a better reference.				
			
			
			
			
			
				Life cycle and mating behavior				
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
			
			
				
					Members of the phylum Chaetognatha are hermaphroditic.  Mating behavior:  A preliminary visual signaling behavior for species recognition is observed to prevent predation.  Life cycle:  Eggs directly develop into miniature adults (hatchlings).				
			
			
			
			
			
				Kasatkina, A.P. 2003 New genera and species of arrowworms of the order Phragmophora (Chaetognatha). Russian Journal of Marine Biology 29(1):1-11. (Ref. 1658)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Ref. 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Ref. 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
					  Harmless				
			
			
			
			
			
			
			
			
				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