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A review of karenia mikimotoi: Bloom events, physiology, toxicity and toxic mechanism
Li, Xiaodong1,2; Yan, Tian2,3,4; Yu, Rencheng2,3,4; Zhou, Mingjiang2
2019-12-01
Source PublicationHARMFUL ALGAE
ISSN1568-9883
Volume90Pages:18
Corresponding AuthorLi, Xiaodong(lixiaodong11@163.com) ; Yan, Tian(tianyan@qdio.ac.cn)
AbstractKarenia mikimotoi is a worldwide bloom-forming dinoflagellate in the genus Karenia. Blooms of this alga have been observed since the 1930s and have caused mass mortalities of fish, shellfish, and other invertebrates in the coastal waters of many countries, including Japan, Norway, Ireland, and New Zealand. This species has frequently bloomed in China, causing great financial losses (more than 2 billion yuan, Fujian Province, 2012). K. mikimotoi can adapt to various light, temperature, salinity, and nutrient conditions, which together with its complex life history, strong motility, and density-dependent allelopathy, allows it to form blooms that are lethal to almost all marine organisms. However, its toxicity differs between subspecies and some target-species-specific toxicity has also been recorded. Significant gill disorder is observed in affected fish, to which the massive fish kills are attributed, rather than to the hypoxia that occurs in the fading stage of a bloom. However, although this species is haemolytic and cytotoxic, and generates reactive oxygen species, none of the isolated toxins or lipophilic extracts have toxic effects as extreme as those of the intact algal cells. The toxic effects of K. mikimotoi are strongly related to contact with intact cells. Several reasonable hypotheses of how and why this species blooms and causes mass mortalities have been proposed, but further research is required.
KeywordHarmful algal blooms Karenia mikimotoi Physiology Toxicity Toxic mechanism
DOI10.1016/j.hal.2019.101702
Indexed BySCI
Language英语
Funding ProjectScience & Technology Basic Resources Investigation Program of China[2018FY100206] ; National Nature Science Foundation of China[NSFC 41476102] ; National Nature Science Foundation of China[U1406403] ; National Marine Laboratory Key Program[2015ASKJ02] ; Sino-Australian Centre for Healthy Coasts[2016YFE0101500]
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS IDWOS:000502893700005
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/164185
Collection海洋生态与环境科学重点实验室
Corresponding AuthorLi, Xiaodong; Yan, Tian
Affiliation1.Fujian Agr & Forestry Univ, Inst Oceanol, Coll Anim Sci, Key Lab Marine Biotechnol Fujian Prov, Fuzhou 350002, Fujian, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Shandong, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li, Xiaodong,Yan, Tian,Yu, Rencheng,et al. A review of karenia mikimotoi: Bloom events, physiology, toxicity and toxic mechanism[J]. HARMFUL ALGAE,2019,90:18.
APA Li, Xiaodong,Yan, Tian,Yu, Rencheng,&Zhou, Mingjiang.(2019).A review of karenia mikimotoi: Bloom events, physiology, toxicity and toxic mechanism.HARMFUL ALGAE,90,18.
MLA Li, Xiaodong,et al."A review of karenia mikimotoi: Bloom events, physiology, toxicity and toxic mechanism".HARMFUL ALGAE 90(2019):18.
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