Scaling in Free-Swimming Fish and Implications for Measuring Size-at-Time in the Wild.

ABSTRACT: This study was motivated by the need to measure size-at-age, and thus growth rate, in fish in the wild. We postulated that this could be achieved using accelerometer tags based first on early isometric scaling models that hypothesize that similar animals should move at the same speed with a stroke frequency that scales with length-1, and second on observations that the speed of primarily air-breathing free-swimming animals, presumably swimming 'efficiently', is independent of size, confirming that stroke frequency scales as length-1. However, such scaling relations between size and swimming parameters for fish remain mostly theoretical. Based on free-swimming saithe and sturgeon tagged with accelerometers, we introduce a species-specific scaling relationship between dominant tail beat freq

SUBMITTER: Broell F 

PROVIDER: S-EPMC4684220 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature