湖泊科学
湖泊科學
호박과학
JOURNAL OF LAKE SCIENCES
2015年
5期
932-940
,共9页
浮游动物%群落结构%水质%淮河干流
浮遊動物%群落結構%水質%淮河榦流
부유동물%군락결구%수질%회하간류
Zooplankton%community structures%water quality%the mainstream of Huaihe River
2011年3、6、9和12月对淮河干流11个采样点的浮游动物群落结构进行调查研究,共检出浮游动物79属206种,其中原生动物27属69种,占浮游动物总物种数的33.5%；轮虫35属104种,占50.5%；枝角类12属27种,占13.1%；桡足类5属6种,占2.9%.总体上看,从上游至下游,浮游动物物种数呈现逐渐减少的趋势.浮游动物的丰度和生物量分别为3527447 ind./L和2452 mg/L,轮虫和原生动物丰度是淮河干流浮游动物丰度的主体,轮虫生物量是淮河干流浮游动物生物量的主体,浮游动物及各类群丰度和生物量均表现为从上游到中游逐渐增高的趋势,而从中游到下游呈现逐渐降低的趋势.上游浮游动物多样性指数和均匀度指数高于中、下游.结果表明：淮河干流上游水质为轻污染,中、下游水质为中污染或重污染.浮游动物群落结构和环境因子的冗余分析表明,水温、溶解氧和流速是与淮河干流浮游动物群落结构相关性较强的环境因子.
2011年3、6、9和12月對淮河榦流11箇採樣點的浮遊動物群落結構進行調查研究,共檢齣浮遊動物79屬206種,其中原生動物27屬69種,佔浮遊動物總物種數的33.5%；輪蟲35屬104種,佔50.5%；枝角類12屬27種,佔13.1%；橈足類5屬6種,佔2.9%.總體上看,從上遊至下遊,浮遊動物物種數呈現逐漸減少的趨勢.浮遊動物的豐度和生物量分彆為3527447 ind./L和2452 mg/L,輪蟲和原生動物豐度是淮河榦流浮遊動物豐度的主體,輪蟲生物量是淮河榦流浮遊動物生物量的主體,浮遊動物及各類群豐度和生物量均錶現為從上遊到中遊逐漸增高的趨勢,而從中遊到下遊呈現逐漸降低的趨勢.上遊浮遊動物多樣性指數和均勻度指數高于中、下遊.結果錶明：淮河榦流上遊水質為輕汙染,中、下遊水質為中汙染或重汙染.浮遊動物群落結構和環境因子的冗餘分析錶明,水溫、溶解氧和流速是與淮河榦流浮遊動物群落結構相關性較彊的環境因子.
2011년3、6、9화12월대회하간류11개채양점적부유동물군락결구진행조사연구,공검출부유동물79속206충,기중원생동물27속69충,점부유동물총물충수적33.5%；륜충35속104충,점50.5%；지각류12속27충,점13.1%；뇨족류5속6충,점2.9%.총체상간,종상유지하유,부유동물물충수정현축점감소적추세.부유동물적봉도화생물량분별위3527447 ind./L화2452 mg/L,륜충화원생동물봉도시회하간류부유동물봉도적주체,륜충생물량시회하간류부유동물생물량적주체,부유동물급각류군봉도화생물량균표현위종상유도중유축점증고적추세,이종중유도하유정현축점강저적추세.상유부유동물다양성지수화균균도지수고우중、하유.결과표명：회하간류상유수질위경오염,중、하유수질위중오염혹중오염.부유동물군락결구화배경인자적용여분석표명,수온、용해양화류속시여회하간류부유동물군락결구상관성교강적배경인자.
The zooplankton community structures at 11 sampling sites in the mainstream of Huaihe River were investigated in March, June, September and December of 2011. A total of 206 species belonging to 79 genera were identified. Protozoa has 69 species (33. 5% of the total) of 27 genera;Rotifer has 104 species (50. 5%) of 35 genera;Cladocera has 27 species (13. 1%) of 12 genera, and Copepoda has 6 species (2. 9%) of 5 genera. Consequently, the number of species showed a steady decreasing trend from the upper reaches to the lower reaches. The density and biomass of zooplankton were 3527447 ind. /L and 2452 mg/L, respectively. The abundance of protozoa and rotifer were on predominance, and the biomass of rotifer was on predominance. The middle reaches had the highest abundance and biomass of zooplankton. The Shannon-Wiener index and Pielou evenness index of zooplankton in the upper reaches were higher than those in the middle and the lower reaches. This study showed that the water quality of the upper reaches of Huaihe River was in oligotrophic status, while the middle and lower reaches were in mesotrophic sta-tus or eutrophic status. Redundancy analysis showed that temperature, dissolved oxygen and velocity were strongly correlated with the zooplankton community structures.
