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Urchin Barrens (20) More files...
With warming sea waters the small but voracious sea urchin has the chance to wipe out entire kelp forests in California which effects local economies and ecosystems. The eruption in 2013 of sea star wasting disease, which wiped out important urchin predators, resulted in a population explosion among small purple urchins. With warming waters these quarter-size animals have had a huge impact on the state's kelp forests which provide necessary wildlife habitat and consume carbon emissions.
Purple Sea Urchin (Strongylocentrotus purpuratus) group feeding on last kelp in barren, Mendocino, California
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00642051 Purple Sea Urchin (Strongylocentrotus purpuratus) group feeding on last kelp in barren, Mendocino, California© Ralph Pace
Purple Sea Urchin (Strongylocentrotus purpuratus) group creating urchin barren by feeding on kelp, Carmel, California
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00593367 Purple Sea Urchin (Strongylocentrotus purpuratus) group creating urchin barren by feeding on kelp, Carmel, California© Ralph Pace
Purple Sea Urchin (Strongylocentrotus purpuratus) group feeding on kelp holdfast, Monterey, California
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00642041 Purple Sea Urchin (Strongylocentrotus purpuratus) group feeding on kelp holdfast, Monterey, California© Ralph Pace
Purple Sea Urchin (Strongylocentrotus purpuratus) group feeding in kelp forest, Monterey, California
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00642047 Purple Sea Urchin (Strongylocentrotus purpuratus) group feeding in kelp forest, Monterey, California© Ralph Pace
Purple Sea Urchin (Strongylocentrotus purpuratus) group feeding on Kelp (Macrocystis pyrifera) plants at base, killing entire 100 foot plant, San Diego, California  -  Norbert Wu
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00135148 Purple Sea Urchin (Strongylocentrotus purpuratus) group feeding on Kelp (Macrocystis pyrifera) plants at base, killing entire 100 foot plant, San Diego, California© Norbert Wu
Purple Sea Urchin (Strongylocentrotus purpuratus) group feeds on algae, southern California  -  Norbert Wu
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00135158 Purple Sea Urchin (Strongylocentrotus purpuratus) group feeds on algae, southern California© Norbert Wu
Brittle Star (Ophiothrix spiculata) group and Purple Sea Urchins (Strongylocentrotus purpuratus), California
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00560548 Brittle Star (Ophiothrix spiculata) group and Purple Sea Urchins (Strongylocentrotus purpuratus), California© Norbert Wu
Purple Sea Urchin (Strongylocentrotus purpuratus) feeding on fallen kelp frond, Monterey, California
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00642048 Purple Sea Urchin (Strongylocentrotus purpuratus) feeding on fallen kelp frond, Monterey, California© Ralph Pace
Purple Sea Urchin (Strongylocentrotus purpuratus) with tube feet extended into water to feed, California  -  Flip Nicklin
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00094981 Purple Sea Urchin (Strongylocentrotus purpuratus) with tube feet extended into water to feed, California© Flip Nicklin
Purple Sea Urchin (Strongylocentrotus purpuratus) and Red Sea Urchin (Strongylocentrotus franciscanus) group, Channel Islands, California  -  Fred Bavendam
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00151848 Purple Sea Urchin (Strongylocentrotus purpuratus) and Red Sea Urchin (Strongylocentrotus franciscanus) group, Channel Islands, California© Fred Bavendam
Purple Sea Urchin (Strongylocentrotus purpuratus) barren, Mendocino, California
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00642039 Purple Sea Urchin (Strongylocentrotus purpuratus) barren, Mendocino, California© Ralph Pace
Purple Sea Urchin (Strongylocentrotus purpuratus) barren, Carmel, California
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00642038 Purple Sea Urchin (Strongylocentrotus purpuratus) barren, Carmel, California© Ralph Pace
Purple Sea Urchin (Strongylocentrotus purpuratus) group feeding on last kelp in barren, Monterey, California
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00642046 Purple Sea Urchin (Strongylocentrotus purpuratus) group feeding on last kelp in barren, Monterey, California© Ralph Pace
Purple Sea Urchin (Strongylocentrotus purpuratus) smashed by Josh Russo to eliminate urchin barrens and allow for abalone to be restored, Van Damme State Beach, California
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00642049 Purple Sea Urchin (Strongylocentrotus purpuratus) smashed by Josh Russo to eliminate urchin barrens and allow for abalone to be restored, Van Damme State Beach, California© Ralph Pace
Purple Sea Urchin (Strongylocentrotus purpuratus) barren, Van Damme State Beach, California
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00642050 Purple Sea Urchin (Strongylocentrotus purpuratus) barren, Van Damme State Beach, California© Ralph Pace
Purple Sea Urchin (Strongylocentrotus purpuratus) group feeding on Giant Kelp (Macrocystis pyrifera), creating urchin barren, California
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00560549 Purple Sea Urchin (Strongylocentrotus purpuratus) group feeding on Giant Kelp (Macrocystis pyrifera), creating urchin barren, California© Norbert Wu
Purple Sea Urchin (Strongylocentrotus purpuratus) barrens, population explosion destroys once lush Kelp forest, southern California  -  Norbert Wu
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00135175 Purple Sea Urchin (Strongylocentrotus purpuratus) barrens, population explosion destroys once lush Kelp forest, southern California© Norbert Wu
Bat Star (Asterina miniata) surrounded by Purple Sea Urchins (Strongylocentrotus purpuratus) in Urchin Barrens, San Diego, California  -  Norbert Wu
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00135157 Bat Star (Asterina miniata) surrounded by Purple Sea Urchins (Strongylocentrotus purpuratus) in Urchin Barrens, San Diego, California© Norbert Wu
Purple Sea Urchin (Strongylocentrotus purpuratus) over-taking kelp forest, Cape Town, South Africa
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00562570 Purple Sea Urchin (Strongylocentrotus purpuratus) over-taking kelp forest, Cape Town, South Africa© Peter Verhoog/ Buiten-beeld
Red Sea Urchin (Strongylocentrotus franciscanus) and Purple Sea Urchin (Strongylocentrotus purpuratus) feeding on Southern Sea Palm (Eisenia arborea) creating urchin barren, Santa Cruz Island, Channel...
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00568051 Red Sea Urchin (Strongylocentrotus franciscanus) and Purple Sea Urchin (Strongylocentrotus purpuratus) feeding on Southern Sea Palm (Eisenia arborea) creating urchin barren, Santa Cruz Island, Channel...© Richard Herrmann
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