Archive for the ‘ANS Example Sidebar’ Category

Zebra Mussel

Thursday, January 29th, 2009

zm-scatter

(Dreissena polymorpha)

Zebra mussels have disrupted the traditional aquatic food chains of many inland lakes. Their voracious filter feeding depletes the availability of microscopic organisms that play a critical part in each lake’s ecological food web.

New Zealand Mudsnail

Thursday, January 29th, 2009

nzmudsnail

(Potamopyrgus antipodarum)

European Green Crab

Thursday, January 29th, 2009

greencrab1

(Carcinus maenas)

Native distribution is along the coasts of the North and Baltic Seas. Potential competitors for the food sources of native fish and bird species.

Chinese Mitten Crab

Tuesday, January 27th, 2009

mittencrab

(Eriocheir sinensis)

Poses a potential threat to native invertebrates and to the ecological structure of freshwater and brackish estuarine communities

Atlantic Salmon

Friday, January 23rd, 2009

atlsalmon

(Salmo salar)

Introduced through planned and unplanned escapes from fish farms

Caulerpa

Tuesday, January 20th, 2009

Caulerpa

(Caulerpa Taxifolia)

Nicknamed “killer algae”, part of this species success as an invader in non-native habitats is the lack of natural predators. Predation by herbivorous fish and invertebrates is an important controlling factor in the ecology of this alga. C. taxifolia grows unchecked in environments with no natural predators.

(more…)

ANS Examples

Chinese Mitten Crab

mittencrab

(Eriocheir sinensis)

Poses a potential threat to native invertebrates and to the ecological structure of freshwater and brackish estuarine communities