Pitarch, J. 2020. A review of Secchi’s contribution to marine optics and the foundation of Secchi disk science. Oceanography 33(3), https://tos.org/oceanography/article/a-review-of-secchis-contribution-to-marine-optics-andthe-foundation-ofsecchi-disk-science DOI: 10.5670/ oceanog.2020.301.