Introduction to the Marine Environment from a Geological Perspective / Pratolongo, P.D., Pan, J. and Cuadrado, D.G. -- Introduction to the Marine Environment from a Physical and Chemical Perspective / Paula Pratolongo and Jerónimo Pan -- Marine Phytoplankton Diversity and Ecology / Jerónimo Pan -- Planktonic Metabolism and Primary Production in the Oceans / Regaudie-de-Gioux, Aurore and Ciotti, Aurea M. -- Microzooplankton: Functionally Diverse Protists in the Pelagic Realm / López-Abbate M.C. -- Zooplankton: The Ocean Drifters / Danilo Luis Calliari Cuadro, Anabela Anahí Berasategui and María Clara Menéndez -- Gelatinous Zooplankton / Miodeli Nogueira Júnior, Everton Giachini Tosetto, Letícia Cazarin Baldoni, Sofia Dutto, Mitsuko Hidaka, Dhugal J. Lindsay and Renato Mitsuo Nagata -- Soft-bottom Marine Benthos / Jerónimo Pan and Paula D. Pratolongo -- Salt Marshes and Mangroves: Tidal Saline Wetlands Dominated by Vascular Plants / Paula Pratolongo -- Marine Hard Substrate Communities / Jorge L. Gutiérrez, Sally D. Hacker, Martin A. Coombes, Christian Wild, Guilherme H. Pereira-Filho and Gabriela Palomo M. -- Fish Ecology / Hannes Baumann -- Marine Megafauna: Sea Turtles, Seabirds and Marine Mammals / Mariano Jelicich R., Berón P., Copello S., Dellabianca N.A., García G., Labrada-Martagón V., Paso Viola M.N., Paz J.A., Riccialdelli L., San Martin A., Seco Pon J.P., Torres M.A. and Favero M. -- Thermal Plasticity in Marine Organisms / Santiago Salinas and Nishad Jayasundara -- Climate Variability and Change, Their Impact on Marine Life and Ecosystems / Jerónimo Pan and Reinaldo A. Maenza.