Three seasons with a total of 78 half-hour episodes (234 seven-minute segments) were originally broadcast on December 21, 2010, followed by an official premiere on January 10, 2011 on Canal+ Family, with the second and third seasons airing on Gulli, and reruns airing on TF1. A third season was announced in December 2018. A fourth season was announced in 2022.
Aside from the main characters, various episodes feature a variety of background and minor characters to the stories - jungle animals, aquatic lifeforms, and various human characters - in the first season, one of these human characters is portrayed as a Japanese cargo ship captain, who, as a running gag, frequently crashes his ship into the island and is forced to return home with a rubber dingy. Throughout the first season, several episodes featured the supporting character of Neptune, based on the mythological Roman god of the sea and portrayed as a vain, muscular merman with numerous killer whale henchmen, who competed with Sharko for Marina's love, despite her disliking him. Marina despises him and often has to rely on Sharko and Zig to keep him at bay. The second season introduces Poseidon, portrayed as a muscular elderly merman, who served as Marina's adopted father in the episode "Father-In-Law", and an amnesiac human cargo plane pilot who often exhibits the behavior of a monkey due to his condition - one episode revolves around a flashback, where the pilot has met up with actual simians.
78 shorts of 7-minute length were produced for the first season, which is available on Netflix. Also, selected episodes are free to watch on Rovio's streaming site ToonsTV by agreement with Xilam. See Xilam's website for information. 2b1af7f3a8