Information

Ecological parameter:  swimming factor

Parameter group: life parameters

Explanation:
Defined as the ratio of minimum depth of the caudal peduncle to the maximum caudal fin depth in cm. Fish having a small ratio are capable of strong swimming (thunniform fishes).
Poff, N.L.,and J.D. Allan. 1995. Functional organization of stream fish assemblages in relation to hydrologic variability. Ecology 76:606-627.

Classification system: single category assignment system

Abbreviations:
Category nameAbbreviationExplanation
<=0,38sw1ratio is less than or equal 0,38 (swimming factor 1)
0,38-0,43sw2ratio is between 0,38 and 0,43 (swimming factor 2)
>0,43sw3ratio is more than 0,43 (swimming factor 3)
Assigned taxa for each higher systematic unit
TaxagroupNumber of assigned taxa / total number of taxa - percentage
Acipenseriformes3 / 13 - 23%
Anguilliformes1 / 1 - 100%
Atheriniformes2 / 4 - 50%
Clupeiformes2 / 18 - 11.1%
Cypriniformes35 / 312 - 11.2%
Cyprinodontiformes2 / 12 - 16.6%
Esociformes2 / 3 - 66.6%
Gasterosteiformes2 / 9 - 22.2%
Perciformes16 / 94 - 17%
Petromyzontiformes3 / 13 - 23%
Pleuronectiformes2 / 3 - 66.6%
Salmoniformes11 / 125 - 8.8%
Scorpaeniformes1 / 16 - 6.2%
Siluriformes4 / 7 - 57.1%