Morgado, F. M., Pastorinho, R., Quintaneiro, C., & Ré, P. (2006). Vertical distribution and trophic structure of the macrozooplankton in a shallow temperate estuary (Ria de Aveiro, Portugal). Scientia Marina, 70(2), 177–188. https://doi.org/10.3989/scimar.2006.70n2177