Marine biologist

Marine biologists study life in oceans and other saltwater environments, from microscopic plankton to whales and entire reef systems. The work involves fieldwork — diving, sampling from boats, deploying instruments — alongside lab analysis and data modelling to understand species, habitats, and human impacts such as pollution and warming.

They work for research institutes, universities, aquariums, and environmental agencies, often in remote or coastal locations. The role suits physically capable people comfortable with demanding fieldwork and the patience required for long-term ocean monitoring.