Table 1. Comparative energetic performance of bony fish swimming via pectoral (families Labridae & Scaridae) and caudal (Scombridae, Carangidae, Salmonidae) propulsion, ranked by relative efficiency.

Species	Common name	Family	Factorial Aerobic Scope	Relative Efficiency
Stethojulis bandanensis	Bluelined wrasse	Labridae	22.0	1.00
Thunnus albacares [6], [22]	Yellowfin tuna	Scombridae	9.0	0.83
Scarus schlegeli [8]	Yellowband parrotfish	Scaridae	4.3	0.82
Trachurus trachurus [23]	Horse mackerel	Carangidae	9.7	0.53
Onchorynchus nerka [6], [24]	Sockeye salmon	Salmonidae	8.2	0.53
Cheilinus fasciatus	Redbreasted wrasse	Labridae	2.7	0.50
Dicentrarchus labrax [25]	European seabass	Moronidae	2.8	0.50

Temperatures reflected wild conditions and ranged over 20–28°C for these measurements. Published data sources are indicated.