1. Eichhornia crassipes
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Eichhornia crassipes |
Water Hyacinth (Eichhornia crassipes) is a rapidly growing aquatic plant that can obstruct waterways, hinder navigation, and negatively impact swimming and fishing activities. It can cover the water’s surface, blocking sunlight for algae, competing with native aquatic plants, and significantly reducing biodiversity in aquatic ecosystems.
Common name: Water Hyacinth (found in Vietnam)
2. Caulerpa taxifolia
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Caulerpa taxifolia |
Caulerpa seaweed is an aquatic plant that was introduced to the Mediterranean region around 1984, possibly as a residue in water from a marine organism aquarium at the Monaco Oceanographic Museum. Caulerpa is well-adapted to cold waters and has spread, covering the seafloor of native seagrass species, adversely affecting many aquatic organisms.
Common name: Caulerpa seaweed
3. Spartina anglica
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Spartina anglica |
Spartina grass is a highly adaptable aquatic plant that thrives in coastal areas and spreads rapidly. It invades wetlands rich in invertebrate food sources for shorebirds and waterfowl, disrupts diverse native plant communities, and facilitates the invasion of agricultural production, leading to the destruction of coastal salt marsh habitats.
Common name: Spartina grass
4. Undaria pinnatifida
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Undaria pinnatifida |
Undaria, originating from Japan, is cultivated as food for humans. Undaria kelp primarily spreads by attaching to ship hulls. It grows rapidly in dense clusters resembling forests, competing for light and space, leading to the destruction or replacement of native flora and fauna.
Common name: Undaria kelp
(The species listed here have been selected to illustrate the harmful impacts of invasive species. The absence of species from this list does not imply they are less dangerous.)