IOCAS-IR  > 海洋生态与环境科学重点实验室
Effect of modified clay on the transition of paralytic shellfish toxins within the bay scallop Argopecten irradians and sediments in laboratory trials
Li, Jing1,2; Song, Xiuxian1,2,3,4; Zhang, Yue1,2; Xu, Xin1,2; Yu, Zhiming1,2,3,4
2019-04-30
Source PublicationAQUACULTURE
ISSN0044-8486
Volume505Pages:112-117
Corresponding AuthorSong, Xiuxian(songxx@qdio.ac.cn)
AbstractShellfish aquaculture is an important marine industry that has been threatened by harmful algal blooms (HABs) and, in recent years, toxic HABs in particular. The modified clay (MC) treatment is the most promising method to mitigate HABs and has been frequently applied in the field. To determine how the application of MC affects the accumulation, transformation, and detoxification of paralytic shellfish toxins (PSTs) in the bay scallop Argopecten irradians and surrounding sediments, a series of experiments over 16 days in a laboratory simulated Alexandrium tamarense bloom were conducted. After 3 h of exposure to A. tamarense at 2070 (+/- 120) cells mL(-1), the toxicity level in the tissues of the scallops increased to 105.9 (+/- 16.6) mu g STX eq. 100 g(-1) in the control group (group A, with no addition of MC), while the toxicity levels in the scallops of groups B and C (0.1 g L-1 and 0.5 g L-1 MC added, respectively) remained at relatively low levels. During the 3 h, the scallops in group A had incorporated 73.2 mol% of the toxin contained in the initial A. tamarense algal culture, the scallops in group B had incorporated 13.5 mol% of the toxin, and the scallops in group C showed almost no elevation in tissue toxin content. Meanwhile, 56.8 mol% and 107.1 mol% of the PSTs contained in the initial algal culture were settled in the sediments along with the MC-algal cells combination in group B and C, respectively. The results indicated that the application of MC can effectively prevent filter-feeding bivalves from ingesting toxic algal cells and decrease the accumulation of toxins by settling the toxic algal cells in the sediment. It was also indicated that the toxins accumulated within the sediments were more rapidly detoxified than that in the scallop tissues. Toxins accumulated by the scallops persisted in the tissue for approximately 16 days, while in the sediments, all of the PSTs contents were below the HPLC detection limits 4 days after the addition of MC.
KeywordModified clay Paralytic shellfish toxins Bay scallop Argopecten irradians Alexandrium tamarense
DOI10.1016/j.aquaculture.2019.02.038
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFC1404300] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1606404] ; National Natural Science Foundation of China[41276115] ; AoShan Talents Cultivation Program - Qingdao National Laboratory for Marine Science and Technology[2017ASTCP-OS16] ; Research Fund for the Taishan Scholar Project of Shandong Province of China
WOS Research AreaFisheries ; Marine & Freshwater Biology
WOS SubjectFisheries ; Marine & Freshwater Biology
WOS IDWOS:000462037400014
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/154957
Collection海洋生态与环境科学重点实验室
Corresponding AuthorSong, Xiuxian
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
First Author AffilicationKey Laboratory of Marine Ecology & Environmental Sciences, CAS
Corresponding Author AffilicationKey Laboratory of Marine Ecology & Environmental Sciences, CAS
Recommended Citation
GB/T 7714
Li, Jing,Song, Xiuxian,Zhang, Yue,et al. Effect of modified clay on the transition of paralytic shellfish toxins within the bay scallop Argopecten irradians and sediments in laboratory trials[J]. AQUACULTURE,2019,505:112-117.
APA Li, Jing,Song, Xiuxian,Zhang, Yue,Xu, Xin,&Yu, Zhiming.(2019).Effect of modified clay on the transition of paralytic shellfish toxins within the bay scallop Argopecten irradians and sediments in laboratory trials.AQUACULTURE,505,112-117.
MLA Li, Jing,et al."Effect of modified clay on the transition of paralytic shellfish toxins within the bay scallop Argopecten irradians and sediments in laboratory trials".AQUACULTURE 505(2019):112-117.
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