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学科主题: Pharmacology & Pharmacy; Toxicology
题名: Revisiting the association between sea surface temperature and the epidemiology of fish poisoning in the South Pacific: Reassessing the link between ciguatera and climate change
作者: Llewellyn, LE
通讯作者: l.llewellyn@aims.gov.au
刊名: TOXICON
发表日期: 2010-01-01
卷: 56, 期:5, 页:691-697
收录类别: sci
部门归属: Australian Inst Marine Sci, Townsville, Qld 4810, Australia
摘要: The most detailed dataset of ciguatera intensity is that produced by the South Pacific Epidemiological and Health Information Service (SPEHIS) of the Secretariat of the Pacific Community. The SPEHIS fish poisoning database has been previously analysed yielding statistically significant correlations between the Southern Oscillation Index (SOI) and ciguatera case numbers in several countries raising concerns this affliction will increase as oceans warm. Mapping of the SPEHIS records and other data hints at ciguatera not only being restricted to warm waters but that the Indo-Pacific Warm Pool, a body of water that remains hot throughout much of the year, may inhibit ciguatera prevalence. A qualitative assessment of ciguatera intensity and sea surface temperature (SST) behaviour within the EEZ of selected South Pacific nations supported the notion that ciguatera intensity was highest when SST was between an upper and lower limit. Many more climate and SST indices beyond the SOI are now available, including some that measure the above-mentioned phenomenon of oceanic warm pools. Statistically significant, positive and negative cross-correlations were obtained between time series of annual ciguatera case rates from the SPEHIS dataset and the Pacific Warm Pool Index and several ENSO related indices which had been lagged for up to 2 years before the ciguatera time series. This further supports the possibility that when considering the impact of climate change on ciguatera, one has to consider two thresholds, namely waters that remain warm enough for a long enough period can lead to ciguatera and that extended periods where the water remains too hot may depress ciguatera case rates. Such a model would complicate projections of the effects of climate change upon ciguatera beyond that of a simple relationship where increased SST may cause more ciguatera. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/8391
Appears in Collections:海洋科技动态信息-印太暖池系统研究_期刊论文

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Recommended Citation:
Llewellyn, LE.Revisiting the association between sea surface temperature and the epidemiology of fish poisoning in the South Pacific: Reassessing the link between ciguatera and climate change,TOXICON,2010,56(5):691-697
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