| 中华鳖不同生态养殖模式对池塘水环境及养殖效果的影响 |
| Effects of Different Culturing Modes on Pond Environment and Output of Trionyx sinensis |
| 投稿时间：2012-05-28 修订日期：2012-06-18 |
| DOI： |
| 中文关键词:中华鳖 生态模式 水质理化因子 养殖效果 |
| 英文关键词:rionyx sinensis ecological mode physical-chemical factors of water quality aquaculture effects |
| 基金项目:山东省农业重大科技创新项目“黄河三角洲池塘多元化生态养殖技术研究”;山东省科技攻关项目“黄河三角洲盐碱地渔业生态利用关键技术研究与集成”(GZX209949) |
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| 中文摘要: |
| 利用条件相近的两组池塘,对中华鳖(Trionyx sinensis)的两种生态模式(Ⅰ组:中华鳖-吃食性鱼类鲤和草鱼模式;Ⅱ组:中华鳖-杂食性水生动物鲫和螺模式)对池塘水环境以及养殖效果的影响进行对比试验。结果表明,Ⅱ组CODMn在7、8、和9月显著低于Ⅰ组(P<0.05),NH3在6、7、8和9月显著低于Ⅰ组(P<0.05),TP在7月和8月显著低于Ⅰ组(P<0.05),TN在6、7和8月显著低于Ⅰ组(P<0.05),NO2--N在6月和7月显著低于Ⅰ组(P<0.05),Ⅱ组水环境质量较Ⅰ组好。Ⅱ组检出藻类47种,Ⅰ组34种,Ⅱ组种类显著增多(P<0.05);Ⅰ组蓝藻重量占83.18%,硅藻2.98%,隐藻2.65%,甲藻0%,Ⅱ组蓝藻58.59%,硅藻13.44%,隐藻14.00%,甲藻7.07%,Ⅱ组蓝藻明显下降,而硅藻、隐藻、甲藻明显上升(P<0.05)。6月Ⅰ组平均生物量4.18mg/L,Ⅱ组2.57mg/L,8月Ⅰ组29.04mg/L,Ⅱ组5.41mg/L,6月和8月Ⅰ组生物量均显著高于Ⅱ组(P<0.05)。Ⅰ组Shannon-Wiener指数H’在6月和8月均值分别为2.117和0.7467,Ⅱ组均值分别为2.5427和1.0178,Ⅱ组6月和8月H’均明显增加(P<0.05);在6月,Ⅱ组Margalef丰富度指数d为1.8516,Ⅰ组为1.2499,Ⅱ组较Ⅰ组上升明显(P<0.05);两组的Pielou匀度均指数J差别不大。Ⅱ组中华鳖平均产量11782.5kg/hm2,显著高于Ⅰ组11482.5kg/hm2(P<0.05)。 |
| 英文摘要: |
| The effects of two ecological modes (group I:Trionyx sinensis and predatory fishes-cyprinoid and grass carp; group II: Trionyx sinensis and omnivore aquatic animals-crucian and conch ) on pond environment and output of Trionyx sinensis was studied under two pond groups with similar environment. In terms of the physical-chemical factors of water quality，CODMn in group II was significantly lower than that in group I from July to September(P<0.05); NH3 was significantly lower than that in group I from June to September(P<0.05);TP was significantly lower than that in group I in July and August ( P<0.01);TN was significantly lower than that in group I from June to August ( P<0.05); NO-2 – N was significantly lower than that in group I in June and July ( P<0.05). Phytoplankton community increased significantly in group II with 47 algae，while 34 algae in group I. The weight of Cyanophyta，Bacillariophyceae，Cryptophyta and Pyrrophyta in group I accounted for 83.18%，2. 98%，2. 65 %and 0 %，respectively; while it was 58. 59%，13.44 %，14. 00% and 7. 07% in group II，respectively，with Cyanophyta decreasing significantly and the other three algae increasing significantly(P<0.05).The average biomass was 4. 18 mg/L in group I while 2. 57 mg/L in group II in June，and it was 29.04 mg/L in group I while5 .41mg/L in group II in August. The biomass was higher in group I than that in group II in both months(P<0.05).In terms of biodiversity index，the Shannon-Wiener index was 2. 117 and 0.7467 in group I in June and August，while it increased significantly to 2.5427 and 1.0178 separately in group II in both months(P<0.05).The Margalef richness index was 1.8516 in group I and 1.2499 in group II. It increased significantly in group II than that in group I(P<0.05).The Pielou evenness index showed little change. The average output of Trionyx sinensis in group II was 11782. 5 kg/hm2，which was significantly higher than that in group I with11482.5 kg(P<0.05). |
| 田功太,巩俊霞,张金路,杜兴华,刘飞,张明磊,段登选.2012.中华鳖不同生态养殖模式对池塘水环境及养殖效果的影响[J].水生态学杂志,33(3):96-100. |
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