巢湖底栖动物分布特征及对蓝藻暴发聚集地的响应研究

[e-mail][e-mail]。doi∶10．3969/j.issn.2095－1736．2016.02.008230601。。2014。。Q178．51A2095－1736201602－0008－05DistributioncharacteristicsofmacrozoobenthoanditsresponsetothealgalbloominChaohuLakeJIANGGeng-keLIYu-chengJIANGJiangWANGNingZHANGXue-shengSchoolofＲesourcesandEnvironmentalEngineeringAnhuiUniversityHefei230601ChinaAbstractUsingfieldsurveyandlaboratoryanalysismethodstherecentalgaeoutbreakstatusandmacrozoobenthos'spatial-temporaldistributioninChaohuLakewereinvestigated．ＲesultsshowedthatthealgaloutbreakfrequencyintheWestern-halflakeisgreaterthanthatintheEast-halfLake．TheaccumulationandhighincidenceareaofbluealgalbloomislocatedintheSouthFeiheＲiverestuaryin-toChaohuLakeandthealgalbloomfrequencydecreasedfromwesttoeastinthisarea．TheamountsofmacrozoobenthointheEastern-halflakeishigherthanthatintheWestern-halfLakeandthenumberofflumineasandthenumberofbellamyasp．weredecreased．ItwasspeculatedthatthedistributionpatternofmacrozoobenthoinChaohuLakewasrelatedtothebloomofalgalwhichledtothedam-ageofthelakeeco-environment．Theresultofasamplingsurveyconductedin2014indicatedthatanegativecorrelationexistedbe-tweentheamountsofmacrozoobenthointheWestern-halflakeandthealgalbloomfrequency．ThealgalbloomfrequencyintheEast-ern-halflakewaslow．Therewasnoobviouscorrelationbetweenthisfrequencyandthebenthicfaunadistribution．WithmoreandmoreeffortsmadetocontrolChaohuLakepollutionthewaterqualityofChaohuLakehasimprovedinrecentyears．Howeverthedistribu-tioncharacteristicsofmacrozoobenthoindicatednoobviousimprovementintheaquaticenvironment．Henceahugeofworksontheeco-logicalenvironmentregulationofChaohuLakeshouldbedoneinthefuture．KeywordsalgaeinChaohuLakemeerozoobenthosspatial-temparaldisfributionaquaticecologicalenvironmenttreaofmenteffeer。、12。833220164JOUＲNALOFBIOLOGYVol.33No.2Apr2016。、、3。、、。、4、、、、、。5。。。11.1201310—113827、11、、pH1/40m25163。20145381610、6。15、16、140.5m、、pH150m2。1.2TN、TP。1001g10mL0.1mol/LTOC。12014Fig1SamplinglocationsinChaohuLakein20146070%。。。1.3TLI67。820aChlaTLIChlaTP、TNTLIChlaTLIChla。TLI=mj=1Wj×TLIj1Wj=r2ij/∑mj=1r2ij2TLIChla=25+10．86lnChla3TLITP=94．36+16．24lnTP4TLITN=54．53+16．94lnTN5TLIjjWjjrijjChla1。Chlamg/m3TP、TNmg/L。TLI∑＜3030≤TLI∑≤5050＜933220164JOUＲNALOFBIOLOGYVol.33No.2Apr2016TLI∑≤6060＜TLI∑≤70TLI∑＞70。1ChlaTP、TNTable1CorrelationcoefficientofChlawithTPandTNChlaTPTNrij10.840.82r2ij10.70560.67241.4ExcelArcGIS。22.12.1.120145931221。349ind．/m21.445g/m20.2%33%。910198120025542578ind．/m2782ind．/m2189.4g/m2104.3g/m2。331653%3%93%。9101981200321981—2003132003—20143340。2Table2TimedistributionofmacrozoobenthosinChaohuLakeg/m2ind．/m2198155189.4578200342104.3782201492.2723282.1.22Fig2TemporaldistributionofmolluscasinChaohuLake21981201432013、201422003200319812014。2.1.3201453、2、3、450.5m2、3、45TP、TN。32014、、TPTNTable3Macrozoobenthos'biomassindividualnumberwaterTPandTNinChaohuLakein2014g/100m2g/m2ind．/m2mg/LTPmg/LTNmg/L1167.694.0978613.350.2232.26233.372.2345013.230.2082.13315.681.9777223.080.2142.74435.435.7343393.240.1622.5950.001.6807203.020.2332.556277.112.775203.900.1462.587113.652.2971814.100.1222.668131.574.9762433.830.1112.099105.711.4971863.300.1032.4510196.673.6274823.740.1142.671176.711.3671024.200.1221.66122.190.1821213.320.0971.711322.570.6061403.960.0612.10144.191.042635.230.0651.49152.291.5834016.090.0571.42163.051.6311805.940.0561.83“－”5。、3。3。5、3、482013TOC13.55、10.42、6.304.78g/kgC/N2.03～4.46。2.22.2.10133220164JOUＲNALOFBIOLOGYVol.33No.2Apr201632014Fig3DistributionofChaohuLake'smolluscaAandmacrozoobenthosB4TP、TN、ChlaTLIFig4InterannualvariationofTPTNChlaandTLIindicesinChaohuLakewater《》2012《》TP、TNChlaTLI4。42003TP、TN、ChlaTLI0.231mg/L、2.84mg/L、91.16mg/m372.47。2.2.2N、P。211126。611200230%12%～18%。52010Fig5AlgaebloomareasuperimposedmapofChaohuLakein2010“”6Fig6TheprobabilityofalgalbloominChaohuLakeofrecentyears72014Fig7FrequencydistributionofalgalbloominChaohuin2014201471133220164JOUＲNALOFBIOLOGYVol.33No.2Apr20162010537。33.1TP、TN、ChlaTLI、110。、1314。。2003TP、TN、ChlaTLI、IV—V。160.065mg/L、0.843mg/La11.90μg/L15。、211。3.2。。208039、1030。30。C/N2.03～4.46C/N3～816。。。2014、1718。。TNTP。。。1．A．．———．2014505－508．2．NOAA/AVHＲＲJ．2009297727－732．172133220164JOUＲNALOFBIOLOGYVol.33No.2Apr2016。2aa。3。、TNTP0.100～0.280m、0.164～1.432mg/L、0.016～0.045mg/L。4。1．J．20034377－384．2．D．2005．3．D．2009．4．J．201044729－736．5．J．20051681502－1506．6．D．2007．7．D．2013．8．—D．2014．9．M．200078－127．10．M．2007181－237．11．M．1995298－354．12．M．198056－128．13．J．20093316－319．14HJ/T399．S．2007．15．—J．2002140－41．16．J．20141156－158．17．J．19924246－51．18．J．19901252－7．19．J．2001253230－235．20GB3838－2002．S．123．J．20102182132－2139．4．J．2003152160－168．5TanabeSPrudenteMSKan-atireklapSetal．Musselwatchma-rinepollutionmonitoringofbutyltinsandorganochlorinesincoastalwatersofThailandPhilippinesandIndiaJ．Ocean＆CoastalMan-agement2000438－9819－839．6．J