کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8974834 | 1552994 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of light intensity on growth, survival and skin color of juvenile Chinese longsnout catfish (Leiocassis longirostris Günther)
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم آبزیان
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
An 8-week experiment was carried out to investigate the effects of light intensity on growth, survival and skin color of Chinese longsnout catfish juveniles. Five light intensities, 0.15, 0.98, 2.46, 3.82 and 5.28 μmol·sâ1·mâ2 (5, 74, 198, 312 and 434 lx, respectively), were tested in triplicates. Fish (4.8 ± 0.01 g) were fed to satiation twice a day (0900, 1600 h). The photoperiod was 12L:12D (0800-2000 h). At the end of the experiment, three fish per tank were sampled to measure skin color by instrumental color analysis. The results showed that growth rate was significantly reduced at lower or higher intensities while light intensity did not affect the survival. The skin color of Chinese longsnout catfish was darkest under 434 lx. It is concluded that light intensity significantly affected growth and optimal light intensity for Chinese longsnout catfish juveniles was about 312 lx.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquaculture - Volume 248, Issues 1â4, 29 July 2005, Pages 299-306
Journal: Aquaculture - Volume 248, Issues 1â4, 29 July 2005, Pages 299-306
نویسندگان
Dong Han, Shouqi Xie, Wu Lei, Xiaoming Zhu, Yunxia Yang,