DELPHINE AURES / EURELIOS / SCIENCE PHOTO LIBRARY DELPHINE AURES / EURELIOS / SCIENCE PHOTO LIBRARY
Invasive algae treatment. Researcher with an ion- selective membrane used to apply copper ions to the green alga Caulerpa taxifolia. The alga is native to the Caribbean, but a strain capable of growing in cooler climates was introduced to the Mediterranean in the 1980s from an aquarium. Dense meadows now cover large regions and the fast- growing alga is replacing native species and decreasing biodiversity. It is also toxic to native herbivores. The copper ions destroy chlorophyll, the compound used to produce energy and that gives the alga its green colour.
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