Overview

Harmful algal blooms (HABs) and their potent phycotoxins have emerged as one of the most complex and costly biological challenges of our time—reshaping ecosystems, threatening human and animal health, and influencing economies across the globe. Join us on an intriguing journey into the hidden chemical world of algae, where microscopic organisms wield sophisticated molecular arsenals capable of disrupting food webs, intoxicating wildlife, and undermining the security of communities that depend on aquatic resources. Throughout this book, we weave together insights from ecology, toxicology, chemistry, and environmental science to trace the origins, functions, and impacts of phycotoxins across freshwater and marine systems. Together, we explore how algae deploy toxins as defensive tools, competitive weapons, and ecological signals—and how these compounds cascade through ecosystems with far-reaching consequences. Through illustrative case studies, we unravel the mechanisms behind major toxin groups, examine the environmental forces fueling their global rise, and illuminate the changing dynamics of HABs under human influence. But understanding this phenomenon is not only about identifying toxins; it is about confronting the deeper questions they raise. How do climate change, land-use practices, and shifting hydrology amplify bloom dynamics? How do wildlife, aquaculture species, and even gut microbiomes adapt—or fail to adapt—to algal xenobiotics? Could aquaculture research, for instance, learn from the remarkable biomolecular and epigenetic strategies that wild animals use to survive toxic exposure? And if so, how can we harness these insights to make aquaculture practices more resilient? As these blooms become more frequent and potent, how can societies effectively navigate the intertwined ecological, economic, and public health challenges posed by increasingly toxic waters? Whether you are a researcher, student, environmental practitioner, or curious reader seeking to understand one of today’s most pressing aquatic challenges, this book offers a rigorous, up-todate, and compelling guide. We invite you to look beneath the surface—to understand the forces driving HABs, the molecular weaponry algae deploy, and the pathways toward more resilient ecosystems and informed management practices.

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9783032183798

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Thora Lieke graduation at Humboldt University of Berlin, 2016 visiting researcher Kunming University (KUST), 2017-2021 Researcher at Leibniz-Institute of Freshwater Ecology & Inland Fisheries (IGB), 2017-2020 Researcher and PR consultant HuminTech GmbH, 2021-present visiting researcher Leibniz-Institute of Freshwater Ecology & Inland Fisheries (IGB), EAFP Young Researcher Representative, 2021-present Researcher at University of South Bohemia, h-index 10. Christian E.W. Steinberg 1975 graduation at MPI Limnology (Plön); Limnologist Bavarian Water Board →89; Fraunhofer-Institute of Environmental Chemistry & Ecotoxicology →90; GSF, Neuherberg, ecotoxicology →94; 1995-2005 Head of Leibniz-Institute of Freshwater Ecology & Inland Fisheries, 1995-2014 Chair of Freshwater Ecology, Humboldt-University;  visiting professorships (Salzburg, Wuhan, Rio de Janeiro, permanent Kunming/YunNan); several Springer books, h-index 62.

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