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当前位置: 首页 > 文章 > 夏季崇明扣蟹生态养殖中空心莲子草的日变化研究 上海农业学报 2014,30 (1) 31-35
Position: Home > Articles > The summer diurnal variation of Alternanthera philoxeroides in juvenile crab-culturing paddy fields on Chongming Island Acta Agriculturae Shanghai 2014,30 (1) 31-35

夏季崇明扣蟹生态养殖中空心莲子草的日变化研究

作  者：
任周;陶贤继;魏华
单  位：
上海海洋大学水产与生命科学学院
关键词：
稻田;空心莲子草;蟹苗;温度;溶解氧;pH;日变化
摘  要：
对夏季崇明水草-水稻-扣蟹养殖水体环境的温度、溶解氧、pH和主要栽培水草空心莲子草的叶绿素、蛋白质、淀粉含量的日变化进行了测定。结果表明:空心莲子草的叶绿素a、b及类胡萝卜素含量的日变化一致,含量最低值在5:00,最高值在9:00,且三者含量的日变化具节律性的动态循环;蛋白质在19:00至翌日1:00降温阶段有新的合成;淀粉含量变化规律为:在白天经过合成积累,随后一直下降至翌日5:00,这是由于水草此时间段内呼吸作用的能量耗损;水体温度在5:00最低,此后随日出温度持续升高,至17:00水体温度达到最大值,随后温度一直降低至翌日5:00;水体中的溶解氧与温度变化趋势基本相似,但溶氧最低值出现在7:00;水体pH的昼变化趋势与温度变化趋势一致。
译  名：
The summer diurnal variation of Alternanthera philoxeroides in juvenile crab-culturing paddy fields on Chongming Island
作  者：
REN Zhou;TAO Xian-ji;WEI Hua;College of Fisheries and Life Science,Shanghai Ocean University;Department of Animal Science and Technology,Shanghai Vocational Technical College of Agriculture and Forestry;
关键词：
Paddy field;;Alternanthera philoxeroides;;Juvenile crab;;Temperature;;Dissolved oxygen;;pH;;Diurnal variation
摘  要：
The aquatic plant-rice-juvenile crab culturing ecosystem on Chongming Island in summer was investigated in terms of the aquaculture environment's temperature,dissolved oxygen and pH and the mainly-planted Alternanthera philoxeroides' chlorophyll,protein and starch.The results indicated that the diurnal variations of chlorophyll a/b and carotenoid contents of A.philoxeroides were the same and a rhythmic dynamic loop,and the minimum and maximum occurred respectively at 5:00 and9:00;The synthesis of new proteins occurred in the temperature-fall period from 19:00 to the next day1:00;The soluble starch content reached its maximum at 17:00 through synthesis and accumulation during daytime,and then declined because of respiration until the next 5:00;The water temperature was minimum at 5:00,then increased and reached its maximum at 17:00,and after that it gradually decreased until the next 5:00;The variation of the dissolved oxygen of water was basically similar to the water temperature variation though the minimum dissolved oxygen value appeared at 7:00;The water pH value during daytime varied the same as the water temperature did.

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