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ID:36638052
大小:1.60 MB
页数:51页
时间:2019-05-13
《温度、盐度和饵料对象山港两种优势桡足类摄食与存活的影响》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、中国海洋大学硕士学位论文温度、盐度和饵料对象山港两种优势桡足类摄食与存活的影响姓名:林霞申请学位级别:硕士专业:海洋生物指导教师:张志南2003.3.1温度、盐度和饵料对象山港两种优势桡足类摄食与存活的影响温度、盐度和饵料对象山港两种优势桡足类摄食与存活的影响摘要研究了温度、盐度和饵料等对象山港两种优势浮游桡足类墨氏胸刺水蚤(Centropagesmcmurrichi)和细巧华哲水蚤(Sinocalanustenellus)摄食与存活的影响。温度、盐度和饵料等对墨氏胸刺水蚤的摄食影响结果表明:1)藻种类、藻细胞密度对墨氏胸刺水蚤的清滤率F(ml·ind-Ioho)和滤食率G(cel
2、ls·ind-loh“)都有显著影响(P<0.01)。墨氏胸刺水蚤对4种不同藻类的摄食率大小顺序为球等鞭金藻(Isochrysisgalbana,摄食率I=12.418岖C.ind-I·h。1)>角毛藻(Chaetoceroscalcitrans,1=9.824/.tgC·ind-Ith.1)>异胶藻(Heterogloeasp,/--6683pgC·ind-1·h“)>小球藻(Chlorellaspp.,1=5.229I.tgC·ind-I·ho)。2)温度在6℃~20℃范围内变化对墨氏胸刺水蚤的清滤率和滤食率无显著影响。盐度(13~34)对墨氏胸刺水蚤的清滤率和滤食率有显著影响
3、,最佳摄食盐度为20。3)容器容积和昼夜变化对墨氏胸刺水蚤的摄食影响不显著。以等鞭金藻为饵料,对细巧华哲水蚤成体的清滤率和滤食率也进行了实验测定。结果显示,温度、海水比重、食物浓度及试验动物密度的变化对细巧华哲水蚤清滤率和滤食率均有显著影响(P4、哲水蚤对温度、盐度的可存活范围分别为1℃~32℃和0~29.3,最适温度、盐度分别为20℃和12.4。3)温度、盐度及其交互作用对两种桡足类的存活率均有极显著影响(P5、opepodsinXiangshanHarborAbstractSeveralexperimentswcrecarriedouttOdeterminetheeffectsoftemperature,salinityandfoodoningestionandsurvivaloftwodominantplanktoniccopepods,CentropagesmcmurrichiandSinocalanustenellusinXiangshanHarbor,Ningb0city,Zhejiangprovince.TheresultsforingestionofCentropagesmc6、murrichiarelistedbelow:1)Bothfilteringrates(F,ml·ind-1.h“)andgrazingrates(G,cells·ind"ohl)ofC.mcmurrichiweresignificantlyaffectedbydifferentmicroalgaanditsconcentrations(P<0.01),andfurthermore,theingestionrates(/,BgC·indq.h“)ofCmcmurrichiforlsochrysisgalbana,Chaetoceroscalcitrans,Heterogloerls7、p.andChlorellaspwere12418pgC·ind~.h~,9.824IxgC·ind-1.h~,6.683I.tgC·ind-I·h—and5.229肛gC·ind-Ioh~,respectively.2)Theeffectsofculturetemperaturevaringfrom6*Cto20。ConFandGofCmcmurrichiwerenotsignificant(P>O.05),butthesignificantdifferencesw
4、哲水蚤对温度、盐度的可存活范围分别为1℃~32℃和0~29.3,最适温度、盐度分别为20℃和12.4。3)温度、盐度及其交互作用对两种桡足类的存活率均有极显著影响(P5、opepodsinXiangshanHarborAbstractSeveralexperimentswcrecarriedouttOdeterminetheeffectsoftemperature,salinityandfoodoningestionandsurvivaloftwodominantplanktoniccopepods,CentropagesmcmurrichiandSinocalanustenellusinXiangshanHarbor,Ningb0city,Zhejiangprovince.TheresultsforingestionofCentropagesmc6、murrichiarelistedbelow:1)Bothfilteringrates(F,ml·ind-1.h“)andgrazingrates(G,cells·ind"ohl)ofC.mcmurrichiweresignificantlyaffectedbydifferentmicroalgaanditsconcentrations(P<0.01),andfurthermore,theingestionrates(/,BgC·indq.h“)ofCmcmurrichiforlsochrysisgalbana,Chaetoceroscalcitrans,Heterogloerls7、p.andChlorellaspwere12418pgC·ind~.h~,9.824IxgC·ind-1.h~,6.683I.tgC·ind-I·h—and5.229肛gC·ind-Ioh~,respectively.2)Theeffectsofculturetemperaturevaringfrom6*Cto20。ConFandGofCmcmurrichiwerenotsignificant(P>O.05),butthesignificantdifferencesw
5、opepodsinXiangshanHarborAbstractSeveralexperimentswcrecarriedouttOdeterminetheeffectsoftemperature,salinityandfoodoningestionandsurvivaloftwodominantplanktoniccopepods,CentropagesmcmurrichiandSinocalanustenellusinXiangshanHarbor,Ningb0city,Zhejiangprovince.TheresultsforingestionofCentropagesmc
6、murrichiarelistedbelow:1)Bothfilteringrates(F,ml·ind-1.h“)andgrazingrates(G,cells·ind"ohl)ofC.mcmurrichiweresignificantlyaffectedbydifferentmicroalgaanditsconcentrations(P<0.01),andfurthermore,theingestionrates(/,BgC·indq.h“)ofCmcmurrichiforlsochrysisgalbana,Chaetoceroscalcitrans,Heterogloerls
7、p.andChlorellaspwere12418pgC·ind~.h~,9.824IxgC·ind-1.h~,6.683I.tgC·ind-I·h—and5.229肛gC·ind-Ioh~,respectively.2)Theeffectsofculturetemperaturevaringfrom6*Cto20。ConFandGofCmcmurrichiwerenotsignificant(P>O.05),butthesignificantdifferencesw
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