Plankton Across Ecosystems

Plankton exhibit remarkable diversity and adaptability across various marine environments, from polar regions to tropical waters, coastal zones to the open ocean, and from surface waters to deep-sea depths. In polar regions, diatoms dominate during summer, supporting food webs that include species like Arctic copepods and Antarctic krill. Tropical waters are rich with cyanobacteria such as Prochlorococcus, crucial for primary production and carbon cycling. Coastal ecosystems, fueled by nutrient inputs, support abundant phytoplankton blooms and diverse zooplankton species that interact with benthic creatures. The open ocean’s epipelagic zone features nitrogen-fixing cyanobacteria, while deeper zones host specialized zooplankton adapted to low light and high pressure. This comprehensive exploration underscores plankton’s vital roles in marine ecosystems and global biogeochemical cycles.