Formation mechanism and environmental drivers of Alexandrium catenella bloom events in the coastal waters of Qinhuangdao, China

麻痹性贝类中毒 甲藻 塔玛亚历山大 水华 布鲁姆 贝类中毒 裸甲藻 贝类 浮游植物 生物 毒素 赤潮 海洋毒素 环境科学 环境化学 生态学 渔业 化学 微生物学 水生动物 营养物
作者
Haiyan Wu,Chen-Fan Dong,Guanchao Zheng,Zhihua Zhang,Ya-Ya Zhang,Zhijun Tan,Haifeng Gu
出处
期刊:Environmental Pollution [Elsevier]
卷期号:313: 120241-120241 被引量:5
标识
DOI:10.1016/j.envpol.2022.120241
摘要

In the last 5 years, paralytic shellfish toxins (PSTs) have been recurrently detected in mollusks farmed in the mussel culture area of Qinhuangdao city, along with the occurrence of toxic outbreaks linked to dinoflagellate species of the Alexandrium genus. To understand the formation mechanism and variation of these events, continuous and comprehensive PSTs monitoring was carried out between 2017 and 2020. Through the analysis of both phytoplankton and cysts via light microscopy and quantitative polymerase chain reaction, it was shown that Alexandrium catenella was responsible for the production of PSTs, which consisted mainly of gonyautoxins 1,4 (GTX1/4, 87%) and GTX2/3 (13%). During bloom events in 2019, mussels accumulated the highest PSTs value (929 μg STX di-HCl eq·kg-1) in conjunction with the peak of cell abundances, and toxin profiles were consistent with high distributions of GTX1/4, GTX2/3, and Neosaxitoxin. Toxin metabolites vary in different substances and mainly transferred to a stable proportion of α-epimer: β-epimers 3:1. The environmental drivers of Alexandrium blooms included the continuous rise of water temperature (>4 °C) and calm weather with low wind speed and no significant precipitation. By comparing toxin profiles and method sensitivity, it was found that dissolved toxins in seawater are more useful for early warning. These results have important implications for the effective monitoring and management of paralytic shellfish poisoning outbreaks.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
smile发布了新的文献求助10
1秒前
俊逸吐司发布了新的文献求助10
1秒前
NexusExplorer应助WL采纳,获得10
2秒前
2秒前
鱼块发布了新的文献求助10
4秒前
学疯发布了新的文献求助10
4秒前
Andrew发布了新的文献求助100
5秒前
山东及时雨完成签到,获得积分10
5秒前
wanci应助yyyq0721采纳,获得10
6秒前
Allison关注了科研通微信公众号
6秒前
6秒前
vivichan7发布了新的文献求助10
6秒前
cxm发布了新的文献求助30
6秒前
英俊的铭应助12采纳,获得10
7秒前
xu完成签到,获得积分10
7秒前
任性雨柏发布了新的文献求助10
7秒前
8秒前
8秒前
9秒前
9秒前
罗小球发布了新的文献求助10
9秒前
jqxxx完成签到,获得积分10
10秒前
nefu biology发布了新的文献求助10
10秒前
傻傻的沛容完成签到,获得积分10
10秒前
水shui完成签到,获得积分10
11秒前
12秒前
无心的若山完成签到,获得积分10
12秒前
塔娜发布了新的文献求助10
13秒前
13秒前
16秒前
NexusExplorer应助nefu biology采纳,获得10
16秒前
16秒前
小蘑菇应助xu采纳,获得10
17秒前
vivichan7完成签到,获得积分10
17秒前
Wellnemo发布了新的文献求助10
17秒前
温暖寻雪完成签到,获得积分10
18秒前
18秒前
19秒前
19秒前
泡泡发布了新的文献求助10
19秒前
高分求助中
The late Devonian Standard Conodont Zonation 2000
Nickel superalloy market size, share, growth, trends, and forecast 2023-2030 2000
The Lali Section: An Excellent Reference Section for Upper - Devonian in South China 1500
Smart but Scattered: The Revolutionary Executive Skills Approach to Helping Kids Reach Their Potential (第二版) 1000
Very-high-order BVD Schemes Using β-variable THINC Method 830
Mantiden: Faszinierende Lauerjäger Faszinierende Lauerjäger 800
PraxisRatgeber: Mantiden: Faszinierende Lauerjäger 800
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3247936
求助须知:如何正确求助?哪些是违规求助? 2891185
关于积分的说明 8266538
捐赠科研通 2559374
什么是DOI,文献DOI怎么找? 1388196
科研通“疑难数据库(出版商)”最低求助积分说明 650711
邀请新用户注册赠送积分活动 627620