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 ...

Phytoplankton form the foundation of the marine food chain, and climate change is shaking ... working on incorporating the satellite’s data into a model that can simulate future scenarios.

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 ...

A study by McGill University on a Cretaceous marine ecosystem reveals that the predators at the top of the food chain 130 million years ago exerted a dominance unmatched by modern species. The study, ...