Levels of lead and other heavy metals spiked in L.A.’s coastal waters after the January fires, raising serious concerns for ...

Mercury is present in seawater in small quantities. It gets into the marine food chain starting at the very bottom, absorbed by microscopic algae. Larger, carnivorous species like sharks and ...

Zooplankton are one of the most diverse and abundant groups of organisms on Earth and they play an essential role in the marine food chain. Unable to photosynthesise, as phytoplankton do ...

Excrement from the Northern Territory's saltwater crocodile population might ... claims it could be helping support the base of the food chain in the Top End's flood plains. Predation pressure ...