The ocean sunfish, despite its name, can reach weights of up to two tonnes and is often covered in parasites, including its eyeballs. In a recent episode of The Nature of Things 101, host Sarika Cullis-Suzuki delves into the peculiarities of this fish, known for its unique appearance and habits.
Cullis-Suzuki highlights the unconventional features of the Mola mola, a type of ocean sunfish, showcasing its massive circular body, lack of a tail, and enormous fins using a life-size model. These fish, among the largest in the sea, undertake extensive journeys, diving hundreds of meters multiple times daily in search of food. However, their slow movement, large surface area, and passage through various water zones make them prime targets for parasites.
A staggering 73 different parasite species have been identified on the Mola mola and other ocean sunfish types, some even hosting parasites of their own. To combat this infestation, sunfish employ unique tactics such as breaching out of the water and crashing back down, believed to dislodge parasites. Additionally, they allow smaller fish and birds to feed on the parasites infesting them.
Despite our current knowledge, the ocean sunfish remains a species ripe for further investigation. Cullis-Suzuki emphasizes the necessity for ongoing research to unlock more mysteries surrounding this fascinating creature.
For more insights, viewers can catch The Nature of Things 101 on CBC Gem or visit The Nature of Things YouTube channel.
