IHB OpenIR  > 藻类生物学及应用研究中心  > 期刊论文
Grazing on toxic cyanobacterial blooms by tadpoles of edible frog Rana grylio
Zhang, Xiaoming1; Song, Lirong2; Zhang, Pengcheng1; He, Jiawan2; Liu, Yongding2; Matsuura, Hiroshi1; Watanabe, Makoto M.1; Zhang, XM (reprint author), Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki, Japan
2012
Source PublicationPHYCOLOGICAL RESEARCH
ISSN1322-0829
Volume60Issue:1Pages:20-26
AbstractTadpoles of Rana grylio were raised as edible frogs in fishponds of Guanqiao in Wuhan City, Hubei, China, during cyanobacterial blooms from June to October. The dominant cyanobacterial species was Microcystis, which was found to be lethally toxic by intraperitoneal (i.p.) mouse bioassay. Little is known about the effect of tadpoles on toxic cyanobacterial blooms. To evaluate the potential of the tadpoles to graze on cyanobacterial blooms, the tadpoles were fed on Microcystis collected from the field in the laboratory. The Microcystis cells decreased from 1.19 x 107 cells mL-1 to 3.23 x 106 cells mL-1, with a sharp reduction of 73% of the initial Microcystis population observed in the first 24 h after introduction of the tadpoles. The ponds containing tadpoles had a markedly lower density of Microcystis than those lacking tadpoles. Tadpoles exposed to either cultured Microcystis aeruginosa (NIES-90, 2.768 mu g microcystins mg1 dw1) cells or lysed M. aeruginosa cells grew well, however, indicating that they were unaffected by Microcystis toxins. We found a significant increase in tadpole body weight after feeding on either field Microcystis or cultured M. aeruginosa. The mean increase in individual body weight was 20 mg day-1 when fed on Microcystis from the pond, and 7 mg day-1 when fed on M. aeruginosa from culture. Our study strongly suggested that there is a direct trophic relationship between R. grylio tadpoles and toxic Microcystis blooms and they possess the potential to graze on toxic Microcystis. The results imply that R. grylio tadpoles may play an important ecological role in reducing toxic cyanobacterial blooms caused by Microcystis.; Tadpoles of Rana grylio were raised as edible frogs in fishponds of Guanqiao in Wuhan City, Hubei, China, during cyanobacterial blooms from June to October. The dominant cyanobacterial species was Microcystis, which was found to be lethally toxic by intraperitoneal (i.p.) mouse bioassay. Little is known about the effect of tadpoles on toxic cyanobacterial blooms. To evaluate the potential of the tadpoles to graze on cyanobacterial blooms, the tadpoles were fed on Microcystis collected from the field in the laboratory. The Microcystis cells decreased from 1.19 x 107 cells mL-1 to 3.23 x 106 cells mL-1, with a sharp reduction of 73% of the initial Microcystis population observed in the first 24 h after introduction of the tadpoles. The ponds containing tadpoles had a markedly lower density of Microcystis than those lacking tadpoles. Tadpoles exposed to either cultured Microcystis aeruginosa (NIES-90, 2.768 mu g microcystins mg1 dw1) cells or lysed M. aeruginosa cells grew well, however, indicating that they were unaffected by Microcystis toxins. We found a significant increase in tadpole body weight after feeding on either field Microcystis or cultured M. aeruginosa. The mean increase in individual body weight was 20 mg day-1 when fed on Microcystis from the pond, and 7 mg day-1 when fed on M. aeruginosa from culture. Our study strongly suggested that there is a direct trophic relationship between R. grylio tadpoles and toxic Microcystis blooms and they possess the potential to graze on toxic Microcystis. The results imply that R. grylio tadpoles may play an important ecological role in reducing toxic cyanobacterial blooms caused by Microcystis.
SubtypeArticle
KeywordBlue-green Algae Cyanobacterial Bloom Grazing Microcystin Microcystis Pond Tadpole Trophic Relationship
Department[Zhang, Xiaoming; Zhang, Pengcheng; Matsuura, Hiroshi; Watanabe, Makoto M.] Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki, Japan; [Song, Lirong; He, Jiawan; Liu, Yongding] Chinese Acad Sci, Inst Hydrobiol, Wuhan, Hubei, Peoples R China
DOI10.1111/j.1440-1835.2011.00627.x
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationK. C. Wang Education Foundation, Hong Kong, Chinese Academy of Sciences; Japanese Government, Science and Technology Agency ; K. C. Wang Education Foundation, Hong Kong, Chinese Academy of Sciences; Japanese Government, Science and Technology Agency ; K. C. Wang Education Foundation, Hong Kong, Chinese Academy of Sciences; Japanese Government, Science and Technology Agency ; K. C. Wang Education Foundation, Hong Kong, Chinese Academy of Sciences; Japanese Government, Science and Technology Agency
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS IDWOS:000299101300002
WOS KeywordBLUE-GREEN-ALGAE ; CARP HYPOPHTHALMICHTHYS-MOLITRIX ; MICROCYSTIS-AERUGINOSA ; OREOCHROMIS-NILOTICUS ; CENTRAL CHINA ; NONTOXIC STRAINS ; PEPTIDE ; LARVAE ; FISH ; LAKE
Funding OrganizationK. C. Wang Education Foundation, Hong Kong, Chinese Academy of Sciences; Japanese Government, Science and Technology Agency ; K. C. Wang Education Foundation, Hong Kong, Chinese Academy of Sciences; Japanese Government, Science and Technology Agency ; K. C. Wang Education Foundation, Hong Kong, Chinese Academy of Sciences; Japanese Government, Science and Technology Agency ; K. C. Wang Education Foundation, Hong Kong, Chinese Academy of Sciences; Japanese Government, Science and Technology Agency
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/16779
Collection藻类生物学及应用研究中心_期刊论文
Corresponding AuthorZhang, XM (reprint author), Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki, Japan
Affiliation1.Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki, Japan
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Xiaoming,Song, Lirong,Zhang, Pengcheng,et al. Grazing on toxic cyanobacterial blooms by tadpoles of edible frog Rana grylio[J]. PHYCOLOGICAL RESEARCH,2012,60(1):20-26.
APA Zhang, Xiaoming.,Song, Lirong.,Zhang, Pengcheng.,He, Jiawan.,Liu, Yongding.,...&Zhang, XM .(2012).Grazing on toxic cyanobacterial blooms by tadpoles of edible frog Rana grylio.PHYCOLOGICAL RESEARCH,60(1),20-26.
MLA Zhang, Xiaoming,et al."Grazing on toxic cyanobacterial blooms by tadpoles of edible frog Rana grylio".PHYCOLOGICAL RESEARCH 60.1(2012):20-26.
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