Aves | 
Charadriiformes | 
Alcidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Others.  Subtropical; 48°N -   29°N, 124°E -   156°E (Ref. 125423)			
			
			
				
			
			
			
				Northwest Pacific:  From Sakhalin, south to Izu Islands (Japan), west to North and South Korea and east to Hokkaido (Japan) and Kuril Islands. Subtropical to temperate.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm Max length : 26.0 cm TL male/unsexed; (Ref. 8812); max. published weight: 295.80 g (Ref. 356)			
			
			
							
				
				
					
						Culmen: 1.96 cm; tarsus: 1.805 cm; wing: 14.35 cm.					
				
				
						
			
			
			
			
				
					Similar diet to that of Ancient Murrelet. Plunge diving; warm-current waters; offshore, to the edge of the continental shelf; upwellings and converging currents (Ref. 356).				
			
			
			
			
			
				Life cycle and mating behavior				
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
			
			
				
									
			
			
			
			
			
				Carter, H.R., K. Ono, J.N. Fries, H. Hasegawa, M. Ueta, H. Higuchi, J.T. Moyer, L.K. Ochikubo Chan, L.N. de Forest, M. Hasegawa and G.B. van Vliet 2002 Status and conservation of the Japanese Murrelet (Synthliboramphus wumizusume) in the Izu Islands, Japan. Journal of Yamashina Institute for Ornithology 33(2):61-87. (Ref. 6836)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Ref. 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Ref. 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
			
			
			
			
				Threat to humans  
			
			
				
									
			
			
			
			
			
			
			
			
				Human uses  
			
			
							
			
			
				 | FishSource | 			
			
			
			
			
			
Tools
			
			
			
			
				
					More information				
				
					 Population dynamicsGrowth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
  Life cycleReproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
  PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				Internet sources
			
			
			
			
			
				Estimates based on models
			
			
			
									
						Preferred temperature  					
				 (Ref. 
115969): 3.8 - 22.1, mean 17.4 (based on 80 cells).			
 
			
			
			
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Low vulnerability (16 of 100).					
				
						
						
			
									
						Price category  					
					
					Unknown.