Sea sawdust (Trichodesmium erythraeum), often precedes coral spawning. Magnetic Island, Great Barrier Reef, Queensland, Australia

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Photo credit: © Mark Spencer/AUSCAPE / Alamy / Afripics
License: Licensed
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Keywords: ammonium, atmospheric, auscape, cyanobacteria, filamentous, fixes, humans, invertebrates, marine, mark, nitrogen, sawdust, sea, shallow, spencer, subtropical, toxic, tropical, water