Influence of parental swimming stamina on the cardiac and metabolic performance of larval zebrafish (Danio rerio).

Influence of parental swimming stamina on the cardiac and metabolic performance of larval zebrafish (Danio rerio).

Date: May 2007
Creator: Gore, Matthew R.
Description: Superior swimming stamina in adult fish is presumably passed on to their offspring, but the ontogeny of the appearance of superior stamina and the requisite enhanced cardio-respiratory support for locomotion in larval fishes has not been determined. Is the expression of the suite of parental traits enabling superior swimming stamina in their offspring dependent upon their achieving juvenile/adult morphology, or does it appear earlier in their larvae? To answer this, adults were classified into three groups based on swimming stamina, followed by measurement of length, mass, and width. Larval offspring from the two parental groups -high stamina larvae (HSL) and low stamina larvae (LSL)- were reared at 27°C in aerated water (21% O2). Routine and active heart rate, routine and active mass specific oxygen consumption were recorded through 21dpf, and cost of transport (COT) and factorial aerobic scope were derived from oxygen consumption measurements. Routine heart rate at 2dpf of LSL was 164 ± 1 b·min-1, compared to only 125 ± 2 b·min-1 for HSL. Routine heart rate subsequently peaked at 203 ± 1 b·min-1 at 5dpf in the HSL group, compared to 207 ± 1 b·min-1, at 4dpf in the LSP larvae. Active heart rate at 5 dpf of ...
Contributing Partner: UNT Libraries
Cardiac and metabolic physiology of early larval zebrafish (Danio rerio) reflects parental swimming stamina

Cardiac and metabolic physiology of early larval zebrafish (Danio rerio) reflects parental swimming stamina

Date: February 24, 2012
Creator: Gore, Matthew & Burggren, Warren W.
Description: Article discussing research on cardiac and metabolic physiology of early larval zebrafish (Danio rerio) reflecting parental swimming stamina.
Contributing Partner: UNT College of Arts and Sciences