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Harmful marine algal blooms and climate change: progress on a formidable predictive challenge
Citation
Hallegraeff, GM, Harmful marine algal blooms and climate change: progress on a formidable predictive challenge, Climate Change and Marine and Freshwater Toxins, De Gruyter, LM Botana, C Louzao, N Vilarno (ed), Germany, pp. 181-193. ISBN 978-3-11-033303-9 (2015) [Research Book Chapter]
Copyright Statement
Copyright 2015 Walter de Gruyter GmbH
Official URL: http://www.degruyter.com/view/product/211014
Abstract
In a strict sense, harmful algal blooms are completely natural phenomena that have
occurred throughout recorded history (e.g. Exodus, Captain Vancouver in 1793).
Whereas in the past three decades unexpected new algal bloom phenomena have
often been attributed to eutrophication or ship ballast water introduction,
increasingly novel algal bloom episodes are now circumstantially linked to climate
change. It is unfortunate that so few long-term records exist of algal blooms at any
single locality; ideally we need at least 30 consecutive years. Whether the apparent
global increase in harmful algal blooms represents a real increase or not is therefore
a question that we will probably not be able to answer conclusively for some time to
come. There is no doubt that our growing interest in using coastal waters for aquaculture
is leading to a greater awareness of toxic algal species. People responsible for
deciding quotas for pollutant loadings of coastal waters, or for managing agriculture
and deforestation, should be made aware that one probable outcome of allowing
polluting chemicals to seep into the environment will be an increase in harmful algal
blooms. In countries that pride themselves on having disease and pollution-free aquaculture,
every effort should be made to quarantine sensitive aquaculture areas against
the unintentional introduction of non-indigenous harmful algal species. Nor can any
aquaculture industry afford not to monitor for an increasing number of harmful algal
species in water and for an increasing number of algal toxins in seafood products, or
to use increasingly sophisticated analytical techniques such as LC-MS. Last but not
least, global climate change is now adding a new level of uncertainty to many seafood
safety monitoring programs.
Item Details
Item Type: | Research Book Chapter |
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Keywords: | harmful algal blooms, climate change |
Research Division: | Biological Sciences |
Research Group: | Plant biology |
Research Field: | Phycology (incl. marine grasses) |
Objective Division: | Animal Production and Animal Primary Products |
Objective Group: | Fisheries - aquaculture |
Objective Field: | Fisheries - aquaculture not elsewhere classified |
UTAS Author: | Hallegraeff, GM (Professor Gustaaf Hallegraeff) |
ID Code: | 104865 |
Year Published: | 2015 |
Deposited By: | IMAS Research and Education Centre |
Deposited On: | 2015-11-23 |
Last Modified: | 2018-04-05 |
Downloads: | 0 |
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