水产养殖水质调控课件.ppt

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1、水产养殖水质调控1.6Waterqualitycontrolofaquaculture1.6.1MainfactorsaffectingwaterqualityChemistry:工业，农业，人为活动Biology:D.O，PH1.6.2Methosofwaterqualitycontrol养殖水体水质调控方法1.6.2.1ChemicalcontrolUsechemicalstocontrolPHandtoxic(有毒）gas.1.6.2.2Physicalcontrol1.Improvebottomlayerquality改善

2、底质2.Waterresourcetreatment水源处理3.Waterexchangeorrefill更换或补充新水1.6.2.3Biologicalcontrol生物控制1、Increseusefulzoonplanktonthroughartificialculture.2、Microecologics微生态制剂3、Photosyntheticbacteria光合细菌4、Higheraquaticplants水生植物1.6.3Biologicalcontrolofwaterquality养殖水体水质生物调控措施1.6.3.

3、1Obsercationofcolorandtransparency水色和透明度观察——“看水”Thefishermanobservethepondwatermainlyabout渔民看水主要依据1.watercolor(waterexpression)水色(水华)（1）Therelationshipbetweenwatercolorandplantplankton（Table1-1）PigmentColorAlgaechlorophyllgreengreenalgae,euglenayellowpigmentyellow,yel

4、low-browndiatom,goldenalgae,dinoflagellate,Cryptomanasphycobilinleucocyanblue,blue-greenbluealgaerhodophyllpurplebluealgae（2）Watercolor(waterexpression)inrichwater肥水“水华”类型Thephenomenonthatthewatershowsevidentcolorowingtothemasspropagationofplantplanktoniscallwaterexpr

5、ession.Itcanbedividedintothefollowtypesaccordingtoitsapperance（Table1-2）:TypeofwaterexpressionWaterappearanceThecompositionofalgaeWaterevaluationsolutionnon-flagellateevenandstablestablewatercloudinessflagellatelight-andshadegoodwaterbutwiththedangerofgoingbadmembrana

6、ceousbluealgaewithsimulatedvacuolecoveredthewatersurfaceGoodandbadareallpossible（3）Judgethewaterqualitybyit'scolorandexpression（Table1-3）根据水色、水华类型判断水质waterqualitygradewatercolorwaterexpressiontypegoodwaterbrown,yellow-brown,green-browncloudiness,solution-likebadwaterb

7、lue、purplemembranaceouscommonwatergreensolution-like2.transparency透明度（1）Watertransparencyandthephytoplankton透明度与浮游植物的关系（2）Watertransparencyandthewaterfertility透明度与水体肥度（Table1-4）WaterfertilitytransparencyplantplanktonamountwatercolorHighunfertilewate>100<5nocolorUnfert

8、ilewater100-505-10alittlecolorFertilewater50(40)-2010(20)-100tintedHighfertilewater20-10100-200richcolorUsedoutwater<10>200v