浮游植物 phytoplankton(1953) phytoplankton community(65)   phytoplankton     ADVANCE IN THE STUDY ON NUTRIENT METABOLISM OF PHYTOPLANKTON     浮游植物营养代谢研究新进展 短句来源     Distribution of phytoplankton in Meizhou Bay, Fujian     福建湄洲湾浮游植物的分布 短句来源     A study on the phytoplankton from inland saline waters in northern China     中国北方内陆盐水的浮游植物 短句来源     The Pigment Species and Distrbution Characteristics of Phytoplankton in Autumn in Bohai Sea     渤海秋季浮游植物色素的种类及分布特征 短句来源     Study on the Distribution and Ecology of Phytoplankton on Tsushima Fishing Ground in Winter     对马渔场冬季浮游植物的分布生态研究 短句来源 更多          phytoplankton community     The results indicated that zoo-plarkton biomass, phytoplankton biomass, chlorophyll-a concentration and gross primary production were reduced by 58.7%, 63.6%, 52.5%, and 65.0% respectively, water transparency and Shannon-Weiner's diversity index of phytoplankton community were increased by 18.2% and 32.5%, when silver carp were stocked in the enclosures.     结果表明,放养鲢鱼后,浮游动物生物量、浮游植物生物量、叶绿素a和浮游植物毛产量分别下降了58.7％、63.6％、52.5％和65.0％; 透明度、浮游植物群落多样性指数分别提高了18.2％、32.5％; 短句来源     In 2000,the cell density of phytoplankton was 376.2×10 4L -1.The phenomenon of vertical distribution of phytoplankton community was very obvious.     2 0 0 1年浮游植物细胞密度已达到 376 2 0× 10 4个 L ,垂直分布现象比较明显 ,随着水深度的增加 ,细胞密度相应递减。 短句来源     Phytoplankton is the main food to the bivalve filter-feeders and the marine primary producer, so the impacts on the phytoplankton community by scallop culture deserve studying.     浮游植物是滤食性贝类的主要饵料,也是海洋主要的初级生产者,因此研究贝类养殖对浮游植物群落的影响具有重要的科学意义。 短句来源     The characterstics of phytoplankton community in prawn pond and the coastal water in Dalian area were studied here.     1991年6月至9月对大连地区3个虾场养殖的中国对虾及虾池浮游植 物群落进行了调查，研究了虾池浮游植物群落的组成结构、数量分布、演替特征及 其与虾病之间的关系。 短句来源     According to the survey results in 2000 and 2001,the nutritive peculiarity of water body in Miyun Reservoir belonged to responding type of phytoplankton. The structure of phytoplankton community was of Chlorophyta(51.6%)-Bacillariophyta(29^2%) type.     20 0 0和 2 0 0 1年调查结果显示 ,密云水库库区水体的营养特征为浮游植物响应型 ,浮游植物的群落结构为绿藻 ( 5 1 6% ) -硅藻 ( 2 9 2 % )型。 短句来源   “浮游植物”译为未确定词的双语例句     The content of Chlorophyll a was 4.33 μg/L.     浮游植物Chl_a含量为4.33μg/L。 短句来源     The biomass totaled 0.849 1 mg/L, in which Bacillariophyta takes the first position of 74.2% and Crypto-phyta takes 18.35% in second.     浮游植物生物量为0．8491 mg／L,硅藻最高,0．6304 mg／L,占74．2％,隐藻次之占18．3％。 短句来源     It increased with the increase of the concentrations of N and P;     水体中N、P浓度的增加而增加，随浮游植物密度的上升而下降，与浮游动物密 短句来源     The probabilities of reducing PHYT( phytoplankon biomass) more than 2% by 1.55X JO7 tons/yr and 3.1 X 107 tons/yr of drawing water are about 44% and 61% respectively, and the probabilities of reducing PHYT more than 12% by the abatement of 1/3 and 1/2 of nutrients release in sediments are about 9% and 83% respectively.     通过引水1.55×10_7吨和3.1×10_7吨来使西湖浮游植物生物量PHYT降低2％以上的概率分别是44％和61％左右； 减少底泥中营养物释放量的1／3和1／2_使PHYT降低12％以上的概率分别是9％和83％左右。 短句来源     The gross and net primary production per unit of water column per day were 2.141 g O_2/L. d and 1.156 O_2/L.     初级生产力:水柱日毛生产量2.141 O_2g/L·d,水柱日净生产量1.156 O_2g/L·d,其初级生产力较低,与浮游植物现存量低相吻合。 短句来源 更多        查询“浮游植物”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   phytoplankton The NO threshold concentration exists according to the influence of exogenous NO on the marine phytoplankton growth. 例句来源       The other type can inhibit the phytoplankton growth, which is about μmol level or higher. 例句来源       Phytoplankton growth rate and microzooplankton grazing rate were obtained by using the dilution method developed by Landry and Hassett. 例句来源       They were mainly derived from the phytoplankton or bacteria and algae. 例句来源       Iron, which could help phytoplankton grow rapidly, is a micronutrient essential to the synthesis of enzymes required for photosynthesis in the oceanic environment. 例句来源       更多             phytoplankton community in the phytoplankton community on the initial abundance of ak 例句来源       Changes of the phytoplankton community during winter in the zone of industrial pollution were studied using cluster analysis. 例句来源       Ordination methods were applied to the identification of structural units in the phytoplankton community. 例句来源       The structural complexity of the phytoplankton community was evaluated using the index of cenotic significance (ICS) and derivative calculation coefficients. 例句来源       The species and size structure of the phytoplankton community was found to have changed significantly and the community biomass, to have increased in the course of long-term succession. 例句来源       更多                    The feeding habit,age and growth,and the propagation of the mud carp,Cir-rhinus molitorella,has been studied.And suggestions concerning its culture have beenmade accordingly.The mud carp feeds mainly on phytoplankton.When water temperature is bet-ween 16.4℃ and 29.4℃,the fish have a strong appetite,above and below this tem-perature feeding declines.Most fish cease to eat at a dissoved oxygen level of 0.24—0.65 mg/l,and when the oxygen level exceeds 0.99 mg/l the feeding of the mudcarp becomes quite active.T...             本文对鲮鱼的食性、年龄、生长和繁殖进行了研究,并对渔业生产提出了建议。鲮鱼以浮游植物为主要食料。在水温14.6—29.4℃时食欲旺盛。当水中溶氧量0.24—0.65毫克/升时,绝大部分个体停止摄食,而溶氧量在0.99毫克/升以上时,摄食强度很大。见到的最大个体:雌鱼体长595毫米,体重4,100克,10龄;雄鱼体长580毫米,体重3,850克,9龄。鲮鱼能在大王滩水库中自然繁殖。鲮鱼人工繁殖季节以5月初至6月中旬较适宜;催产时水温以22—29℃为好,注射催产剂的效应时间一般为4.5—6小时。见到的性成熟最小个体:郁江鲮鱼雌体长273毫米,体重525克,雄体长275毫米,体重415克;池养鲮鱼雌体长247毫米,体重366克,雄体长235毫米,体重291克。根据群众经验,一般池塘中鲮鱼每亩放养1,000尾,鲮与鲢的放养比例以3∶1较好,以鲮鱼为主体的池塘则每亩放养1,500—2,000尾较好。 文摘来源          This is the second report of the studies on organism (fishes) for the control of mosquitoes.Three years ago one of the writers(Pan,1978) made a comparative study of Gambusia affinis, Clarias fuscus and Macropodus opercularis occurring in Guangdong Province, notingpar-ticularly their biological characteristics and developmental embryology. The findings there of appeared in Journal of South China Teachers' College, Natural Sciences Adition, NO.1(1980) , PP 117-138.             本文为生物(鱼类)灭蚊研究的第二部分.作者之一(潘炯华教授),三年前(1978年)曾研究食蚊鱼、胡子鲇、叉尾斗鱼的生物学特性及其胚胎发育.有关资料曾发表在华南师院学报自然科学版1980年第1期117—138页.食蚊鱼灭蚊试验在大面积(2平方公里)孳生地中进行.经过两年的研究,肯定食蚊鱼是一种较好的灭蚊鱼类,它食浮游动物和浮游植物,但更嗜食蚊幼虫.每平方米水面放养10尾食蚊鱼,可使蚊类幼虫密度明显下降,其相关密度指数为0～29.2%(月平均). 文摘来源          The study on primary productivity of phytoplankton and biomass of plankton ofLongtou reservior was carried out during 1978-1979. The mean primary productivityof phytoplankton is 1.88gC/m~2 per day. The biomass of phytoplanton and zooplanktonare 5.764mg/L. and 0. 587mg/L respectively. Basing upon the samples of the Longtoureservoir, fish productivity of silver carp (Hypophthalmichthys molitrix) and big-headcarp (Aristichthys nobils) and rational stocking of an aquatic ecosystem are discussed.             1978—1979年在龙头水库进行了浮游植物初级产量和浮游生物生物量的研究。浮游植物初级产量每昼夜平均为1.88克碳/米~3。浮游植物和浮游动物生物量分别为5.764 mg/L和0.587mg/L。用龙头水库的实例来讨论水域生态系的供饵能力、鲢鳙鱼产力和鱼种的合理放养量。 文摘来源   << 更多相关文摘         相关查询: 浮游植物动态 浮游植物生产量 浮游植物种类 浮游植物量 浮游植物碳的 浮游植物吸收系数 微浮游植物 浮游植物生物量 浮游植物数量 真浮游植物 湖沼浮游植物 水上浮游植物  对查询结果不满意

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