The phytoplankton community was mainly composed of Cyanophyceae, Euglenophyceae, Bacillariophyceae, and Chlorophyceae, and the dominant species were Oscillatoria subtillissima, Dactylococcopsis irregularis, Euglena caudata, Melosira granulata, Cyclotella meneghiniana, Chlorella vulgaris, and Scenedesmus quadricauda. The main environmental factors affecting the distribution of phytoplankton species in July were ammonium-nitrogen, dissolved oxygen, water temperature, and total phosphorus, while those in September were pH, water temperature, dissolved oxygen, transparency, and total nitrogen. Water transparency and zooplankton were the main factors affecting the biomass of Cryptophyceae, Pyrrophyceae, and Bacillariophyceae; while nitrogen, phosphorous, and dissolved oxygen were the main factors affecting the biomass of Cyanophyceae, Euglenophyceae, and Chlorophyceae.

結(jié)果表明：調(diào)查期間共鑒定出浮游植物384種亚洲日本美女视频网站，隸屬于8門，浮游植物密度范圍為2.01×105～57.60×105 cells·L-1影音先锋影院；群落組成以藍(lán)藻、裸藻99操逼免费视频、硅藻和綠藻為主，主要優(yōu)勢種有細(xì)微顫藻在线免费播放麻豆、無常藍(lán)纖維藻深夜影院爱爱、尾裸藻久久国产免费中文、顆粒直鏈藻、梅尼小環(huán)藻视频二区日韩、普通小球藻、四尾柵藻等国产性色Aⅴ综合一；7月影響浮游植物分布的主要環(huán)境因子依次為銨態(tài)氮、溶解氧亚洲欧美性爱视频免费观看、水溫和總磷亚洲色图10p，而9月的pH值、水溫白白白免费视频观看爱、溶解氧、透明度和總氮含量對浮游植物的分布產(chǎn)生影響較大色色色网站；其中，透明度和浮游動(dòng)物量是影響隱藻桃子视频高清免费观看www、甲藻和硅藻藻類生物量的主要環(huán)境因子，而藍(lán)藻av在线免费观看色涩网址、裸藻亚洲国产欧美日本、綠藻主要受水體氮磷營養(yǎng)鹽濃度和溶解氧的影響中文字慕亚洲精品无码久久。

The phytoplankton biomass altered from 4.22 mg/L to 22.31 mg/L, averaging 12.29 mg/L. The diversity index of the phytoplankton (H =0.96) was relatively low. The zooplankton identified belongs to 19 species, and its biomass ranged from 3.75mg/L to 7.74mg/L, averaging 5.93mg/L. The diversity index of the zooplankton was relatively low too. In the cultured rice fields, the phytoplankton identified belonging 53 gena, 6 phyla.

在網(wǎng)箱養(yǎng)鱔塘中久草欧美一二三四区，共檢出浮游植物40屬，隸屬于7個(gè)門免费操人的网站；浮游植物生物量變化在4.22mg/L-22.3mg/L之間，平均為12.29mg/L97超碰人人摸；浮游植物的多樣性指數(shù)相對較低(H=0.96)；共檢出浮游動(dòng)物19屬，其生物量變化在3.75mg/L-7.74mg/L之間欧美AⅤ激情视频，平均為5.93mg/L；浮游動(dòng)物的多樣性指數(shù)(0.80)也相對較低日韩免费黄色网站。

It was the absolute amount of nutrient absorbed by the phytoplankton that limited their growth.

雖然營養(yǎng)鹽的濃度對浮游植物的吸收有一定的影響，但是浮游植物吸收的營養(yǎng)鹽的絕對數(shù)量才是影響浮游植物生長的關(guān)鍵因素

As zooplankton become more abundant and eat more phytoplankton, the population of phytoplankton should shrink.

隨著浮游動(dòng)物變得越來越豐富处女福利视频，它們吃掉的浮游植物也就越多欧美日韩国产一级一片，浮游植物的數(shù)量就會減少。

The result of experiment in 2000 year and 2001 year suggests that primary productivity of Miyun Reservoir is decided by group constitution and cell density of phytoplankton. The character of nutrition is phytoplankton-responding type. The group structure belongs to Chlorophyta (51.64%)-Bacillariophyta (-28.68%) type.

2001年調(diào)查結(jié)果顯示在线黄网AV，密云水庫初級生產(chǎn)力主要決定于浮游植物的群落結(jié)構(gòu)和細(xì)胞密度欧美性爱性爱，營養(yǎng)特征為浮游植物響應(yīng)型老妇人黄色片，浮游植物的群落結(jié)構(gòu)為綠藻(51.6％)一硅藻(28.7％)型。

There was no significant difference on the density and biomass of phytoplankton between spring and summer.1.1.3 The dominant species of phytoplankton was as the following:Gomphonema sp.,Synedra sp.,Navicula sp.,Nitzsschia closterium,Cymbella sp.,Closterium sp..1.1.4 Comprehensive index demonstrated that the water quality was polluted slightly in Maqu section.1.1.5 A negative correlation was present between the density and biomass for phytoplankton and altitude in spring and summer.

1.1.4綜合幾種指數(shù)的綜合評價(jià)一级A片老司机黄色毛片，該流域水質(zhì)呈輕度污染。1.1.5春夏兩季野狼精品无码视频在线，浮游植物密度、生物量均與海拔呈負(fù)相關(guān)性无码日韩精品1区2区三区，即隨著海拔的上升，浮游植物密度欧美3p、生物量呈下降趨勢。1.2浮游動(dòng)物群落結(jié)構(gòu)1.2.1浮游動(dòng)物共2門18種毛片一区二区三区2级大全。

In the CO_2 source area, phytoplankton abundance was low and zooplankton mainly belonged to true estuary and estuary marine communities; while in the CO_2 sink area, phytoplankton was high and zooplankton mainly belonged to euryhaline marine communities.

在枯水季節(jié)，長江口海域由低鹽區(qū)大氣二氧化碳的強(qiáng)源逐漸過渡到高鹽區(qū)的弱匯www.a片.com，咸淡水的混合在一定程度上決定了該區(qū)域碳源匯的格局；二氧化碳源區(qū)最新日本三级片，浮游植物的豐度低在线看黄官网，浮游動(dòng)物主要是純河口類群和河口性海洋類群，而匯區(qū)欧美一级A片视频在线播放，浮游植物的豐度高，浮游動(dòng)物主要是廣鹽性海洋類群午夜国产性爱影视在线超黄超污A片。

The methods used for collecting samples and establishing specific HAB cultures are described in detail. Methods of SEM and ESEM (environmental scanning electron microscope) for Gymnodinium were developed an...

建立了赤潮監(jiān)測中樣品采集處理91精品啪在线观看国产麻豆免费、分離和純化培養(yǎng)的技術(shù)體系；建立和優(yōu)化了裸甲藻掃描電鏡觀察技術(shù)和環(huán)境樣品的掃描電鏡觀察方法人人干日日爱；提出了庫爾特計(jì)數(shù)是相對簡便色就是色欧美黄片、快捷免费能看黄的网站、準(zhǔn)確、可行的細(xì)胞計(jì)數(shù)方法人人搞人人爽；應(yīng)用基于反相高效液相色譜的光合色素分析技術(shù)及原位熒光激發(fā)光譜測定方法免费看日黄片，得出不同類群浮游植物對不同的營養(yǎng)鹽限制存在不同響應(yīng)機(jī)制的結(jié)論；用熒光強(qiáng)度來監(jiān)測浮游植物生理狀態(tài)及營養(yǎng)狀態(tài)變化具有一定的可行性黄色网站免费x，HPLC和原位熒光兩種方法指示浮游植物的生理狀態(tài)存在一定差異。2在线观看欧美一级片。

The total abundance of the phytoplankton ranged from 4.925×106 to 63.65×106 cells L-1and the total biomass from 1.632 to 20.420 mg L-1. Pseudanabaena sp. and Synedra ulna were dominant species in the community during January to March.

共檢測到浮游植物76種；浮游植物總的細(xì)胞數(shù)量在4.925×106-63.65×106cells L-1之間国产精品不卡无码AV在线播放，浮游植物的總生物量在1.632-20.420 mg L-1之間。

The converse observation, of the absence of grazers in areas of high phytoplankton concentration, led Hardy to propose his principle of animal exclusion, which hypothesized that phytoplankton produced a repellent that excluded grazers from regions of high phytoplankton concentration.

高的浮游植物集中的區(qū)域的缺少吃草的動(dòng)物相反的觀察国产公开免费视频，努力地引導(dǎo)計(jì)畫他的動(dòng)物排除的原則，假定浮游植物生產(chǎn)了一個(gè)將吃草的動(dòng)物排除在高的浮游植物集中的區(qū)域之外了的防水劑久久婷婷五月综合品精。

marine algae：浮游植物

船舶柴油:marine diesel | 浮游植物:Marine algae | 海洋酵母:marine yeast

phytoplankton：浮游植物

從蛋白質(zhì)的含量看,生長在大陸性干旱氣候區(qū)的麥粒質(zhì)硬而透明,含...浮游植物 浮游植物(phytoplankton)是一個(gè)生態(tài)學(xué)概念,是指在水中營浮游生活的微小植物,通常浮游植物就是指浮游藻類,主要包括藍(lán)藻門Cyanophyta,硅藻門Bacillariophyta,

phytoplankton：浮游植物[群落]

已演變出甚為聰明的機(jī)制用來獲取其食物,即極 小的浮游植物群落(phytoplankton),或曰植物浮游生物(plant plankton).浮游動(dòng)物體內(nèi)一種極特殊的 進(jìn)食適應(yīng)性變化是蝌蚪狀的尾海鞘綱動(dòng)物(appendicularian)的那種適應(yīng)性變化,

phytoplankton bloom：浮游植物大量繁殖; 水華; 藻華

phytoplankton 浮游植物 | phytoplankton bloom 浮游植物大量繁殖; 水華; 藻華 | phytotoxic 植物毒性的; 對植物有毒的

phytoplankton bloom：浮游植物潮

phytoplankton 浮游植物 | phytoplankton bloom 浮游植物潮 | phytosociology 植物社會學(xué)

phytoplankton blooms：浮游植物增殖

phytophthora rot 大豆疫腐病 | phytoplankton blooms 浮游植物增殖 | phytosanitary certificate 消毒證明文件

annual phytoplankton cycle：浮游植物年循環(huán)

annual percentage rate | 年度百分率 | annual phytoplankton cycle | 浮游植物年循環(huán) | annual plans | 年度計(jì)劃

cryoplankton：冰雪浮游植物

cryophyte 冰雪植物 | cryoplankton 冰雪浮游植物 | cryoprobe 冷凍探針

phytotoxic：植物毒性的; 對植物有毒的

phytoplankton bloom 浮游植物大量繁殖; 水華; 藻華 | phytotoxic 植物毒性的; 對植物有毒的 | PIC 事先知情的同意程序

planktology：浮游生物學(xué)

而研究浮游生物的生命現(xiàn)象和活動(dòng)規(guī)律的科學(xué),稱為浮游生物學(xué)(planktology) . (1) 浮游植物(Phytoplankton) 這是一類自養(yǎng)性的浮游生物,具有葉綠素或其它素體,能吸收光能(太陽輻能)和二氧化碳進(jìn)行光合作用,而自己制造有機(jī)物(主要是碳水化合物) .