2015—2016年长江口及其邻近海域甲藻群落与阿米巴藻感染的周年变化
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摘要
通过2015年2月—2016年1月间在长江口及其邻近海域开展的10个航次调查,研究了该海域浮游甲藻的群落特征和时空变化,分析了寄生性甲藻阿米巴藻宿主种类及其感染率的周年变化。研究结果表明:调查海域浮游甲藻群落结构相对稳定,共检出浮游甲藻类38种,膝沟藻目处于绝对优势,优势种全年既有交叉又有演替;各季节间浮游甲藻丰度差异不显著(P>0.05),但各月间浮游甲藻丰度差异显著(P<0.05);全年丰度在9.06×10~3—6.10×10~6cells/L之间,其中4月份甲藻丰度最高,2月的丰度最低,全年的平均丰度为6.62×10~5cells/L。调查海域阿米巴藻宿主甲藻种类繁多,14种浮游甲藻被寄生感染,感染率范围为0.006%—5.13%;该海域阿米巴藻宿主种类及感染率表现出明显的季节差异,夏、秋两季宿主种类较多,感染率也明显高于春、冬两季。
We conducted an annual survey on the dinoflagellate community and Amoebophrya infections in the Changjiang(Yangtze) River estuary and adjacent waters from February 2015 to January 2016.Results show that the planktonic dinoflagellate community structure was relatively stable,and totally 38 dinoflagellate taxa were identified.The dominant species were diversified and varied among seasons,of which Gonyaulacales ranked first in species richness.Dinoflagellate abundance showed no significant different among seasons but months(P < 0.05).Dinoflagellate densities ranged from 9.06×103 to 6.10×106 cells/L,the highest in April and the lowest in February.The annual average abundance was 6.62×105 cells/L.In addition,14 free-living marine dinoflagellate species were found infected by the parasitic dinoflagellate Amoebophrya during the survey,the infection rates ranged from 0.006% to 5.13%.The host dinoflagellate species and the prevalence of Amoebophrya infection had an obvious seasonal variation,of which those of summer and fall were obviously higher than those in spring and winter.
We conducted an annual survey on the dinoflagellate community and Amoebophrya infections in the Changjiang(Yangtze) River estuary and adjacent waters from February 2015 to January 2016.Results show that the planktonic dinoflagellate community structure was relatively stable,and totally 38 dinoflagellate taxa were identified.The dominant species were diversified and varied among seasons,of which Gonyaulacales ranked first in species richness.Dinoflagellate abundance showed no significant different among seasons but months(P < 0.05).Dinoflagellate densities ranged from 9.06×103 to 6.10×106 cells/L,the highest in April and the lowest in February.The annual average abundance was 6.62×105 cells/L.In addition,14 free-living marine dinoflagellate species were found infected by the parasitic dinoflagellate Amoebophrya during the survey,the infection rates ranged from 0.006% to 5.13%.The host dinoflagellate species and the prevalence of Amoebophrya infection had an obvious seasonal variation,of which those of summer and fall were obviously higher than those in spring and winter.
引文
于仁成,张清春,孔凡洲等,2017.长江口及其邻近海域有害藻华的发生情况、危害效应与演变趋势.海洋与湖沼,48(6):1178-1186
王金辉,黄秀清,2003.具齿原甲藻的生态特征及赤潮成因浅析.应用生态学报,14(7):1065-1069
刘笑,薛俊增,吴惠仙,2014.长江口北支浮游植物群落结构周年变化特征.生物学杂志,31(3):20-24,28
刘子琳,宁修仁,1994.杭州湾锋区浮游植物现存量和初级生产力.东海海洋,12(4):58-66
刘录三,李子成,周娟等,2011.长江口及其邻近海域赤潮时空分布研究.环境科学,32(9):2497-2504
孙军,刘东艳,钱树本,2002.一种海洋浮游植物定量研究分析方法--Uterm?hl方法的介绍及其改进.黄渤海海洋,20(2):105-112
苏纪兰,2001.中国近海的环流动力机制研究.海洋学报,23(4):1-16
李照,宋书群,李才文等,2017.丰、枯水期长江口邻近海域浮游植物群落结构特征及其环境影响初探.海洋学报,39(10):124-144
李才文,2014.海洋寄生性甲藻--阿米巴藻Amoebophrya spp.的研究进展.海洋学报,36(6):1-9
何青,孙军,2009.长江口及其邻近水域网采浮游植物群落.生态学报,29(7):3928-3938
张璇,石晓勇,张传松等,2012.长江口及邻近海域赤潮藻种演替过程中营养盐特征.海洋环境科学,31(6):817-820
林峰竹,吴玉霖,于海成等,2008.2004年长江口浮游植物群落结构特征分析.海洋与湖沼,39(4):401-410
潘玉龙,李瑞香,李艳等,2012.中国近海裸甲藻中文名的研究.海洋通报,31(2):207-213
Alves-de-Souza C,Varela D,Iriarte J L et al,2012.Infection dynamics of Amoebophryidae parasitoids on harmful dinoflagellates in a southern Chilean fjord dominated by diatoms.Aquatic Microbial Ecology,66(2):183-197
Chambouvet A,Morin P,Marie D et al,2008.Control of toxic marine dinoflagellate blooms by serial parasitic killers.Science,322(5905):1254-1257
Chen J Y,Pan D L,Liu M L et al,2017.Relationships between long-term trend of satellite-derived chlorophyll-a and hypoxia off the Changjiang estuary.Estuaries and Coasts,40(4):1055-1065
Chen T T,Liu Y,Song S Q et al,2018.Characterization of the parasitic dinoflagellate Amoebophrya sp.infecting Akashiwo sanguinea in coastal waters of China.The Journal of Eukaryotic Microbiology,65(4):448-457
Coats D W,Adam E J,Gallegos C L et al,1996.Parasitism of photosynthetic dinoflagellates in a shallow subestuary of Chesapeake Bay,USA.Aquatic Microbial Ecology,11(1):1-9
Jiang Z B,Liu J J,Chen J F et al,2014.Responses of summer phytoplankton community to drastic environmental changes in the Changjiang(Yangtze River)estuary during the past 50years.Water Research,54:1-11
Johansson M,Coats D W,2002.Ciliate grazing on the parasite Amoebophrya sp.decreases infection of the red-tide dinoflagellate Akashiwo sanguinea.Aquatic Microbial Ecology,28(1):69-78
Li C W,Chen T T,2017.A novel hematoxylin and eosin stain assay for detection of the parasitic dinoflagellate Amoebophrya.Harmful Algae,62:30-36
Li C W,Song S Q,Liu Y et al,2014.Occurrence of Amoebophrya spp.infection in planktonic dinoflagellates in Changjiang(Yangtze River)Estuary,China.Harmful Algae,37:117-124
Li Y,Li D J,Tang J L et al,2010.Long-term changes in the Changjiang estuary plankton community related to anthropogenic eutrophication.Aquatic Ecosystem Health&Management,13(1):66-72
Maranda L,2001.Infection of Prorocentrum minimum(Dinophyceae)by the parasite Amoebophrya sp.(Dinoflagellea).Journal of Phycology,37(2):245-248
Nishitani L,Erickson G,Chew K K,1985.Role of the parasitic dinoflagellate Amoebophrya ceratii in control of Gonyaulax catenella populations.In:Anderson D M,White A W,Baden D G eds.Toxic Dinoflagellates.New York,USA:Elsevier Science Publishers,225-230
Salomon P S,Granéli E,Neves M H C B et al,2009.Infection by Amoebophrya spp.parasitoids of dinoflagellates in a tropical marine coastal area.Aquatic Microbial Ecology,55(2):143-153
Salomon P S,Rodriguez E G,Granéli E,2006.First report of Amoebophrya sp.parasites infecting dinoflagellates from Brazilian coastal waters.Journal of Coastal Research,(SI39):1090-1093
Siano R,Alves-de-Souza C,Foulon E et al,2011.Distribution and host diversity of Amoebophryidae parasites across oligotrophic waters of the Mediterranean Sea.Biogeosciences,8(2):267-278
Smayda T J,Reynolds C S,2003.Strategies of marine dinoflagellate survival and some rules of assembly.Journal of Sea Research,49(2):95-106
Zhou M J,Shen Z L,Yu R C,2008.Responses of a coastal phytoplankton community to increased nutrient input from the Changjiang(Yangtze)River.Continental Shelf Research,28(12):1483-1489
王金辉,黄秀清,2003.具齿原甲藻的生态特征及赤潮成因浅析.应用生态学报,14(7):1065-1069
刘笑,薛俊增,吴惠仙,2014.长江口北支浮游植物群落结构周年变化特征.生物学杂志,31(3):20-24,28
刘子琳,宁修仁,1994.杭州湾锋区浮游植物现存量和初级生产力.东海海洋,12(4):58-66
刘录三,李子成,周娟等,2011.长江口及其邻近海域赤潮时空分布研究.环境科学,32(9):2497-2504
孙军,刘东艳,钱树本,2002.一种海洋浮游植物定量研究分析方法--Uterm?hl方法的介绍及其改进.黄渤海海洋,20(2):105-112
苏纪兰,2001.中国近海的环流动力机制研究.海洋学报,23(4):1-16
李照,宋书群,李才文等,2017.丰、枯水期长江口邻近海域浮游植物群落结构特征及其环境影响初探.海洋学报,39(10):124-144
李才文,2014.海洋寄生性甲藻--阿米巴藻Amoebophrya spp.的研究进展.海洋学报,36(6):1-9
何青,孙军,2009.长江口及其邻近水域网采浮游植物群落.生态学报,29(7):3928-3938
张璇,石晓勇,张传松等,2012.长江口及邻近海域赤潮藻种演替过程中营养盐特征.海洋环境科学,31(6):817-820
林峰竹,吴玉霖,于海成等,2008.2004年长江口浮游植物群落结构特征分析.海洋与湖沼,39(4):401-410
潘玉龙,李瑞香,李艳等,2012.中国近海裸甲藻中文名的研究.海洋通报,31(2):207-213
Alves-de-Souza C,Varela D,Iriarte J L et al,2012.Infection dynamics of Amoebophryidae parasitoids on harmful dinoflagellates in a southern Chilean fjord dominated by diatoms.Aquatic Microbial Ecology,66(2):183-197
Chambouvet A,Morin P,Marie D et al,2008.Control of toxic marine dinoflagellate blooms by serial parasitic killers.Science,322(5905):1254-1257
Chen J Y,Pan D L,Liu M L et al,2017.Relationships between long-term trend of satellite-derived chlorophyll-a and hypoxia off the Changjiang estuary.Estuaries and Coasts,40(4):1055-1065
Chen T T,Liu Y,Song S Q et al,2018.Characterization of the parasitic dinoflagellate Amoebophrya sp.infecting Akashiwo sanguinea in coastal waters of China.The Journal of Eukaryotic Microbiology,65(4):448-457
Coats D W,Adam E J,Gallegos C L et al,1996.Parasitism of photosynthetic dinoflagellates in a shallow subestuary of Chesapeake Bay,USA.Aquatic Microbial Ecology,11(1):1-9
Jiang Z B,Liu J J,Chen J F et al,2014.Responses of summer phytoplankton community to drastic environmental changes in the Changjiang(Yangtze River)estuary during the past 50years.Water Research,54:1-11
Johansson M,Coats D W,2002.Ciliate grazing on the parasite Amoebophrya sp.decreases infection of the red-tide dinoflagellate Akashiwo sanguinea.Aquatic Microbial Ecology,28(1):69-78
Li C W,Chen T T,2017.A novel hematoxylin and eosin stain assay for detection of the parasitic dinoflagellate Amoebophrya.Harmful Algae,62:30-36
Li C W,Song S Q,Liu Y et al,2014.Occurrence of Amoebophrya spp.infection in planktonic dinoflagellates in Changjiang(Yangtze River)Estuary,China.Harmful Algae,37:117-124
Li Y,Li D J,Tang J L et al,2010.Long-term changes in the Changjiang estuary plankton community related to anthropogenic eutrophication.Aquatic Ecosystem Health&Management,13(1):66-72
Maranda L,2001.Infection of Prorocentrum minimum(Dinophyceae)by the parasite Amoebophrya sp.(Dinoflagellea).Journal of Phycology,37(2):245-248
Nishitani L,Erickson G,Chew K K,1985.Role of the parasitic dinoflagellate Amoebophrya ceratii in control of Gonyaulax catenella populations.In:Anderson D M,White A W,Baden D G eds.Toxic Dinoflagellates.New York,USA:Elsevier Science Publishers,225-230
Salomon P S,Granéli E,Neves M H C B et al,2009.Infection by Amoebophrya spp.parasitoids of dinoflagellates in a tropical marine coastal area.Aquatic Microbial Ecology,55(2):143-153
Salomon P S,Rodriguez E G,Granéli E,2006.First report of Amoebophrya sp.parasites infecting dinoflagellates from Brazilian coastal waters.Journal of Coastal Research,(SI39):1090-1093
Siano R,Alves-de-Souza C,Foulon E et al,2011.Distribution and host diversity of Amoebophryidae parasites across oligotrophic waters of the Mediterranean Sea.Biogeosciences,8(2):267-278
Smayda T J,Reynolds C S,2003.Strategies of marine dinoflagellate survival and some rules of assembly.Journal of Sea Research,49(2):95-106
Zhou M J,Shen Z L,Yu R C,2008.Responses of a coastal phytoplankton community to increased nutrient input from the Changjiang(Yangtze)River.Continental Shelf Research,28(12):1483-1489