کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1974313 1060348 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Swimming ability and physiological response to swimming fatigue in whiteleg shrimp, Litopenaeus vannamei
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Swimming ability and physiological response to swimming fatigue in whiteleg shrimp, Litopenaeus vannamei
چکیده انگلیسی

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, 8.21, 10.11, and 11.47 cm s− 1) for up to 9000 s at 20 °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 · t0.38 = 159.64 (R2 = 0.94). The swimming ability index (SAI), defined as SAI=∫09000v⁢d⁢t×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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology - Volume 145, Issue 1, September 2006, Pages 26–32
نویسندگان
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