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World's Worst Invasives

english100worst

More than half a dozen of the 100 of the World's Worst Invasive Species are present in Nova Scotia.

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Aquatic Invasive Alien Species

Currently, there is no single “go-to” list of aquatic invasive alien species in Nova Scotia. ISANS is working with experts to develop lists of ecologically important invasive alien aquatic organisms. In the meantime, please click on a species to learn more about these known Nova Scotia invaders. Links lead to a variety of resources: some Nova Scotian, and some Canadian.

spinycheek crayfish (Orconectes limosus)

flowering rush (Butomus umbellatus)

European_Green_Crab
L. Sanchez @ en.wikipedia

green crab
(
Carcinus maenus)

Smallmouth Bass
Wikipedia

smallmouth bass
(
Micropterus dolomieui)

Yellow_Floating_Heart
Mark Elderkin

yellow floating heart
(Nymphoides peltata)

Tunicates
A.Redden, ACER

sea squirts or tunicates
(Ciona intestinalis, Didemnum sp., and Styela clava)


Dead_Mans_Fingers
Wikipedia

dead man’s fingers or oyster thief
Codium fragile)