气候变化领域集成服务门户(CCPortal): The influence of the toxin-producing dinoflagellate, Alexandrium catenella, on feeding, reproduction and toxin retention in Calanus helgolandicus

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DOI	10.1016/j.hal.2023.102564
	The influence of the toxin-producing dinoflagellate, Alexandrium catenella, on feeding, reproduction and toxin retention in Calanus helgolandicus
	Abdulhussain, Ali H.; Cook, Kathryn B.; Bresnan, Eileen; Lacaze, Jean-Pierre; Mayor, Daniel J.
发表日期	2024
ISSN	1568-9883
EISSN	1878-1470
起始页码	132
卷号	132
英文摘要	Copepods of the genus Calanus dominate the biomass of pelagic ecosystems from the Mediterranean Sea up into the Arctic Ocean and form an important link between phytoplankton and higher trophic levels. Impacts from toxin-producing harmful algae (HA) have been recorded throughout this region over the last 50 years, with potentially negative effects on Calanus spp. populations and the ecosystem functions and services they provide. Here we examine how ingestion, egg-production and egg-viability in Calanus helgolandicus are affected by the relative abundance of the toxin-producing dinoflagellate Alexandrium catenella in their diet. Our four-day experiments demonstrate that the ingestion rate of C. helgolandicus declined significantly as the percentage of toxinproducing A. catenella within their diet increased, whereas egg production and egg viability were unaffected. Toxin profile concentrations for A. catenella are presented alongside body toxin-loads in C. helgolandicus after 4 days of feeding on these cells. The body toxin concentrations of C. helgolandicus were 3.6-356.6 pg STX diHCl eq. copepod-1, approximately 0.02-3.3 % of the toxins ingested. Our work suggests that the effects of exposure to A. catenella may be negligible in the short-term but could manifest if bloom conditions persist for longer than our experimental duration.
英文关键词	Phytoplankton; Harmful algal bloom; Copepod feeding; Egg production; Paralytic shellfish poisoning; Saxitoxin
语种	英语
WOS研究方向	Marine & Freshwater Biology
WOS类目	Marine & Freshwater Biology
WOS记录号	WOS:001167454400001
来源期刊	HARMFUL ALGAE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297085
作者单位	NERC National Oceanography Centre; University of Southampton; NERC National Oceanography Centre; Kuwait University; Marine Scotland Science (MSS); University of Exeter
推荐引用方式 GB/T 7714	Abdulhussain, Ali H.,Cook, Kathryn B.,Bresnan, Eileen,et al. The influence of the toxin-producing dinoflagellate, Alexandrium catenella, on feeding, reproduction and toxin retention in Calanus helgolandicus[J],2024,132.
APA	Abdulhussain, Ali H.,Cook, Kathryn B.,Bresnan, Eileen,Lacaze, Jean-Pierre,&Mayor, Daniel J..(2024).The influence of the toxin-producing dinoflagellate, Alexandrium catenella, on feeding, reproduction and toxin retention in Calanus helgolandicus.HARMFUL ALGAE,132.
MLA	Abdulhussain, Ali H.,et al."The influence of the toxin-producing dinoflagellate, Alexandrium catenella, on feeding, reproduction and toxin retention in Calanus helgolandicus".HARMFUL ALGAE 132(2024).