[1] Fish biologists classify fish into various life history forms based on where they spend part of their life cycle including, anadromous (migrate to the ocean), adfluvial (migrate to lakes), fluvial (migrate to rivers), and resident (stay within the area in which they were spawned).

[2] A Life history cycle is the complete series of changes in an organism from its conception to its death (Steen 1971). 

[3] Fish habitat within streams is not evenly distributed along the stream channel, instead habitat occurs in distinct patches that vary in quality and size as defined by species preferences and varying physical characteristics.  Riffles and pools are examples of habitat patches which are exploited by different species or life stages that are adapted to rapid flows in riffles (e.g., flatten bodies or fast swimmers) or slower flows in pools (more rounded bodies and slow swimmers).

[4] Caudal peduncle is the portion of the body posterior to the anal fin and anterior to the caudal (tail) fin.

[5] The time increment in an increasing velocity test is the time between velocity increases.

[6] Relative swim speed refers to the swimming speed of the fish relative to it length and should not be confused with the relative speed (speed fish is traveling relative to the water).