Northern Pacific Sea Star (Asterias amurensis) feeding on crab or tube worm by extending stomach into sand burrow.
Northern Pacific Sea Star (Asterias amurensis) feeding on crab or tube worm by extending stomach into sand burrow.
Northern Pacific Sea Stars (Asterias amurensis) foraging across sand flats. Introduced to Australasian waters via ship's water ballast containing sea star eggs. With no natural predators in southern waters this species has exploded in numbers, causing serious environmental problems.
Northern Pacific Sea Stars (Asterias amurensis) foraging across sand flats. Introduced to Australasian waters via ship's water ballast containing sea star eggs. With no natural predators in southern waters this species has exploded in numbers, causing serious environmental problems.
Northern Pacific Sea Stars (Asterias amurensis) clumped together while competing for food. Introduced to Australasian waters via ship's water ballast containing sea star eggs. With no natural predators in southern waters this species has exploded in numbers, causing serious environmental problems.
Northern Pacific Sea Stars (Asterias amurensis) clumped together while competing for food. Introduced to Australasian waters via ship's water ballast containing sea star eggs. With no natural predators in southern waters this species has exploded in numbers, causing serious environmental problems.
Northern Pacific Sea Star (Asterias amurensis) moving rapidly across sand flats in response to feeding group. Introduced to Australasian waters via ship's water ballast containing sea star eggs. With no natural predators in southern waters this species has exploded in numbers, causing serious environmental problems.