Swimming ability and physiological response to swimming fatigue in whiteleg shrimp, Litopenaeus vannamei
文献类型: 外文期刊
第一作者: Zhang, Peidong
作者: Zhang, Peidong;Zhang, Xiumei;Li, Jian;Huang, Guoqiang
作者机构:
关键词: shrimp;Litopenaeus vannamei;swimming ability;swimming fatigue;physiological response;body mass;hemolymph total protein;hemolymph glucose;HEMOLYMPH METABOLIC VARIABLES;PERCH PERCA-FLUVIATILIS;PENAEID PRAWNS;BLOOD-GLUCOSE;ATLANTIC COD;EXERCISE;LACTATE;STRESS;CRAB;FISH
期刊名称:COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY ( 影响因子:2.32; 五年影响因子:2.465 )
ISSN:
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收录情况: SCI
摘要: Some penaeids are active swimmers, undertaking migrations of hundreds of nautical miles. At present, however, very little is known of swimming ability in penaeid shrimps. The aim of the present study is to investigate swimming endurance of whiteleg shrimp, Litopenaeus vannamei, against one of five flow velocities (5.41, 6.78, 8.2 1, 10.11, and 11.47 cm s(-1)) for up to 9000 s at 20 degrees C in a swimming channel. Body mass, hemolymph total protein concentration, and hemolymph glucose level were measured before swimming and immediately following swimming to evaluate physiological effect of swimming in L. vannamei. No shrimp swam the full 9000 s at any of the velocities tested. The swimming endurance decreased as swimming speed was increased. The relationship between swimming endurance (t, in s) and swimming speed (v, in cm s(-1)) can be described by the Curve Estimation: v(.)t(0.38) = 159.64 (R-2 =0.94). The swimming ability index (SAI), defined as SAI f(0)(9000) vdt x 10(-4) (cm) was found to be 7.28 cm for the shrimp tested. Swimming to fatigue leads to severe loss of body mass, hemolymph total protein concentration, and hemolymph glucose level in L. vannamei (P < 0.05). Furthermore, these decreases and swimming speed showed significantly polynomial relationships (P < 0.05). The results suggest that the power model fits well to the observed endurance estimates and the SAI is a good index to quantitatively describe the overall swimming ability of L. vannamei. Furthermore, hemolymph total protein concentration may be used as a rapid and reliable indicator to assess the penaeid shrimps' swimming speed and hence swimming ability. (c) 2006 Elsevier Inc. All rights reserved.
分类号: Q4
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