The ocean sunfish, a creature weighing up to two tonnes and covered in parasites, may not match the typical image of a fish. In a recent episode of ‘The Nature of Things 101’, host Sarika Cullis-Suzuki delves into the unique characteristics of this fish, highlighting its circular body, lack of a tail, and massive fins.
Cullis-Suzuki showcases the Mola mola, a type of ocean sunfish renowned for being one of the largest fish in the sea, using a life-size model to demonstrate its often overlooked features. These fish undertake extensive journeys, diving hundreds of meters deep multiple times a day in search of food. However, due to their slow movement, large surface area, and movement across various water zones, they are prone to attracting parasites.
The Mola mola is plagued by a plethora of parasites, found on its skin, gills, fins, eyeballs, mouth, and intestines. Researchers have identified 73 different parasite species infesting the Mola mola and other ocean sunfish varieties, some of which even host their own parasites.
To combat these parasites, the sunfish employs various strategies. They breach, propelling themselves out of the water and crashing back down, potentially to dislodge parasites. Additionally, they allow smaller fish and birds to feed on the parasites infesting them.
Despite existing knowledge about the ocean sunfish, it remains a species in need of further exploration. Cullis-Suzuki emphasizes the importance of continued research to uncover more about these intriguing creatures.
For more insights, viewers can tune into ‘The Nature of Things 101’ on CBC Gem and The Nature of Things YouTube channel.