最新水产养殖水质调控2课件PPT.ppt

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1、水产养殖水质调控21.6.1MainfactorsaffectingwaterqualityChemistry: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.1.6.3Biologicalcontrolofwaterquality养殖水体水质生物调控措施1.6.3.1Obsercationofcolorandt

2、ransparency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,yellow-browndiatom

3、,goldenalgae,dinoflagellate,Cryptomanasphycobilinleucocyanblue,blue-greenbluealgaerhodophyllpurplebluealgae（2）Watercolor(waterexpression)inrichwater肥水“水华”类型Thephenomenonthatthewatershowsevidentcolorowingtothemasspropagationofplantplanktoniscallwaterexpression.

4、Itcanbedividedintothefollowtypesaccordingtoitsapperance（Table1-2）:TypeofwaterexpressionWaterappearanceThecompositionofalgaeWaterevaluationsolutionnon-flagellateevenandstablestablewatercloudinessflagellatelight-andshadegoodwaterbutwiththedangerofgoingbadmembran

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

6、badwaterblue、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>1

7、00<5nocolorUnfertilewater100-505-10alittlecolorFertilewater50(40)-2010(20)-100tintedHighfertilewater20-10100-200richcolorUsedoutwater<10>200veryrichcolor3.Observationofwaternutrition水体肥瘦与水质判别IiiWaterfertilityandthewaterquality:fertilized,circulating,fresh,clea

8、nThemeaingoffertilized,circulating,freshandcleaninbiology肥、活、嫩、爽Thegoodwaterinfisherman'seyeishighsummarizeasthefourwords.Thisismuchmorecomprehensivethanonlyjudgethewaterbyitscolor