Critical swimming speed of yellow- and silver-phase European eel (Anguilla anguilla, L.)

被引:22
|
作者
Quintella, B. R. [1 ]
Mateus, C. S. [1 ,3 ]
Costa, J. L. [1 ]
Domingos, I. [1 ,2 ]
Almeida, P. R. [1 ,3 ]
机构
[1] Univ Lisbon, Inst Oceanog, Fac Sci, P-1749016 Lisbon, Portugal
[2] Univ Lisbon, Dept Anim Biol, Fac Sci, P-1749016 Lisbon, Portugal
[3] Univ Evora, Sch Sci & Technol, Dept Biol, Evora, Portugal
关键词
SEXUAL-MATURATION; SOCKEYE-SALMON; AMERICAN EELS; HOME-RANGE; PERFORMANCE; FISH; SIZE; MIGRATION; STORES; RIVER;
D O I
10.1111/j.1439-0426.2010.01457.x
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
P>The prime objective of this study was to evaluate differences between the swimming performance of two distinct life stages of European eels. The critical swimming speed (U(crit)) of 29 yellow- and 33 silver-phase eels was evaluated in a swim tunnel. Silver-phase eels showed a better swimming performance (U(crit) = 0.66 ms-1) than yellow individuals (U(crit) = 0.43 ms-1). Male and female silver eels reached an identical U(crit) despite their different sizes, which may be a strategy to increase the synchronization of arrival at the spawning grounds.
引用
收藏
页码:432 / 435
页数:4
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