分類 / Names  				 
				共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa				
			
				
				 > 
Carangiformes (Jacks) > 
Echeneidae (Remoras)						
							
							Etymology: Phtheirichthys: Greek, ptheiros, a fish that parasites other + Greek, ichthys = fish (Ref. 45335).
						
					
				
					Environment: milieu / climate zone / 深さの範囲 / distribution range					
						生態学					
				
				
				
					海 pelagic-oceanic; 海洋回遊性 (Ref. 51243);  深さの範囲 0 - 5 m (Ref. 86942). Subtropical				
				 
			
			
			
				
				
				
					Worldwide in tropical and subtropical waters.  Western Atlantic:  South Carolina, USA and northern Gulf of Mexico to northern South America (Ref. 7251).  Western Central Pacific:  Guam (Ref. 35720).
				
				 
			
			
				
					サイズ / 重さ / 年齢
				
				
				
					成熟: Lm ?  range ? - ? cm
 Max length : 76.0 cm TL オス/雌雄の選別がない; (Ref. 2850)				
				 
			
			
						
				
				
				
					背面の脊椎 (合計) : 0; 背鰭 (合計) : 32 - 38; 肛門の骨: 0; 臀鰭: 31 - 38. Bluish black above, white below; 3 stripes along sides (upper pale blue, middle black, lower silvery).
Body shape (shape guide): elongated.				
				 
			
			
			
			
			
			
			
				Rare (Ref. 4389), oceanic species.  Most often found attached to barracudas but also to other fishes and sea turtles.  Clings to body of host and also found inside gill chambers.			
			 
			
			
			
				
					Life cycle and mating behavior					
					成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生				
				
				
				
								
				
			
			 
				
				
				
					Heemstra, P.C., 1986. Echeneidae. p. 662-664. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4389)
				
				 
			
			
			
							
					
						IUCNのレッドリストの状況は   (Ref. 130435: Version 2025-1)
					
					
				 
					
			
			
			
			
			
			
			
			
			
			
			
				
					Human uses  				
				
				
									
				
				
			
			
						
			
			
			
				
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					インターネットの情報源
				
				
			
			
			
				
					Estimates based on models				
				
				
				Preferred temperature (参照 
123201): 20.9 - 29.1, mean 26.9 °C (based on 39944 cells).
				
				
					
					Phylogenetic diversity index  (参照 
82804):  PD
50 = 1.0039   [Uniqueness, from 0.5 = low to 2.0 = high].					
													Bayesian length-weight: a=0.00257 (0.00110 - 0.00600), b=3.17 (2.96 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 
93245).
					
					栄養段階  (参照 
69278):  3.6   ±0.5 se; based on size and trophs of closest relatives					
											
				
				
										
						回復力  (参照 
120179):  手段, 1.4年~4.4年の倍増期間の最小個体群 (Assuming Fec < 10,000).					
											
				
									
					Fishing Vulnerability  (Ref. 
59153):  Moderate to high vulnerability (50 of 100). 
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