Earth Observatory Blog

Submitted on 26 Mar 2021 by:

Ostracods are aquatic crustaceans that range from 0.2 to 30 milimetres in size. Did you know that that these tiny creatures, also known as seed shrimp, can be used to indicate the pollution levels in lagoons in Southeast Asia?

This is the main finding of our new study published in Environmental Pollution, which uses ostracods collected from a coastal lagoon in Vietnam.

Ostracods produce a skeleton on the outside of their bodies that consists of two valves that open and close like a mussel shell. The shells are formed of calcium carbonate and are easily fossilised in the sediments in which they live. Ostracods first appeared 485 million years ago and their species can be found in a wide...