کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9451676 | 1307835 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of chlorpyrifos on reproductive performances of guppy (Poecilia reticulata)
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
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چکیده انگلیسی
Guppy (Poecilia reticulata) was selected to investigate the effects of chlorpyrifos on reproductive performances. Male and female guppy with proven fertility were selected from our own colony and the groups of fish (n = 72/group) were exposed to pre-determined chlorpyrifos concentrations (0.002 μg/l, 2 μg/l) based on the 96-h LC50 for guppy. Mating behavior of males was recorded on the 2nd day of exposure. Offspring were counted and survival recorded on the 14th day. Gonopodial thrusts (8/15 min) in 0.002 μg/l and (4/15 min) in 2 μg/l were significantly different from the control group (11/15 min). Similarly, live birth reduced significantly to 8/female in 2 μg/l compared to 27/female in the control group. Survival of offspring after 14 days was reduced to 47% in the 2 μg/l group compared to 94% of survival in the control. Our findings demonstrate that low soluble concentrations of chlorpyrifos affect mating behavior, number of offspring and offspring survival of guppy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 58, Issue 9, March 2005, Pages 1293-1299
Journal: Chemosphere - Volume 58, Issue 9, March 2005, Pages 1293-1299
نویسندگان
P.M.C.S. De Silva, L.A. Samayawardhena,