The Incredible Life of Plankton

My name is Lauren Huet. I am a Marine Biology student at James Cook University

What immediately struck me about the plankton was their incredible diversity—the beautiful, vibrant colours, semi-alien-looking forms, and sheer abundance. Plankton are a uniquely diverse group, microscopic phytoplankton, tiny zooplankton, bioluminescent bacteria and families of jellyfish that can weigh up to 80 kg, span 1 meter across with tentacles over 10m long. Here we will explore the two main groups of plankton: phytoplankton

Phytoplankton are marine plants. They are photosynthetic, just like land plants, which makes them massive producers of the oxygen we breathe. There are two major groups of phytoplankton, Cyanobacteria

Zooplankton are planktonic animals. Some of them are holoplankton

We have a lot to thank plankton for in our everyday lives. They produce over 50% of the oxygen we breathe, remove carbon from the atmosphere reducing greenhouse gases, and are the entire basis of the marine food web—meaning all the fish in the sea rely on them for a meal. These fish feed highly-adapted seabirds and over 70% of the global population depends on them as a source of protein. Plankton are vital to our everyday lives. Understanding their importance in the ecosystem and the impact that microplastics have on them as they move through the food web is a crucial link between land and sea and must be understood to grasp the spread of microplastics further. After completing my undergraduate degree, this will be an area of continued research for me and the focus of my master's project.

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