Ballast Stowaways Dinoflagellates (2019)

In his laboratory, an oceanographer conducts temperature and salinity tests to determine the necessary conditions for the micro-algae Protoceratium reticulatum to survive in the Saint Lawrence Estuary. The filmmaker, moving between the seen and the unseen, follows the scientist as he studies the dinoflagellate, an amazing microscopic monster organism responsible for red tides and other phenomena.