But a warming world is throwing plankton into disarray and threatening the entire marine food chain that is built on them. A ...

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 ...

is one of the most important marine ecosystems on Earth. The colder waters nurture massive blooms of phytoplankton, microscopic photosynthetic organisms that form the starting point of the food ...

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 ...

which can enter the marine food chain and become incredibly damaging to sea life. The main source of ocean plastic pollution is land-based—80% of plastic in the ocean originates on land. But what does ...

Sea Otters: Effects of ocean acidification will be felt up the food chain. Marine mammals like sea otters that rely on shellfish may be in trouble. Studies show that, if left unchecked, within our ...

Some seamounts create upwellings of minerals that support bountiful phytoplankton (tiny drifting plants that are the first link in ocean food chains). Such quantities of phytoplankton can support ...

If they die, there’ll be fewer big fish—and that could rattle the food chain. marine-plastic-ocean-fish-microplasticThe naturally oily surface slicks in which many ocean fish come of age are ...