Department of Biology, University of New Brunswick, Saint John, N.B., Canada.
J Fish Biol. 2009 Feb;74(3):674-82. doi: 10.1111/j.1095-8649.2008.02139.x.
Critical swimming speeds (mean +/-s.e.) for juvenile shortnose sturgeon Acipenser brevirostrum were 34.4 cm s(-1)+/- 1.7 (2.18 +/- 0.09 body lengths, BL s(-1)). Swimming challenges at 10, 20 and 30 cm s(-1) revealed that juvenile A. brevirostrum are relatively poor swimmers, and that the fish did not significantly modify their swimming behaviour, although they spent more time substratum skimming (i.e. contact with flume floor) at 30 cm s(-1) relative to 10 cm s(-1). When present, these behavioural responses are probably related to morphological features, such as flattened rostrum, large pectoral fins, flattened body shape and heterocercal tail, and may be important to reduce the costs of swimming.
短吻鲟幼鱼的临界游泳速度（平均值±标准误）为 34.4 厘米/秒±1.7（2.18±0.09 体长/秒）。在 10、20 和 30 厘米/秒的游泳挑战中，发现短吻鲟幼鱼相对较差的游泳能力，而且鱼类并没有显著改变其游泳行为，尽管它们在 30 厘米/秒时比在 10 厘米/秒时更多地在底部滑行（即与水槽底部接触）。当这些行为反应出现时，可能与形态特征有关，如扁平的吻部、大的胸鳍、扁平的身体形状和歪形的尾巴，这可能有助于降低游泳的成本。
