Innovative Measures in Japan: Sunfish Finds Comfort in Cardboard Companions

The Kaikyokan aquarium in Japan has creatively addressed a sunfish's health decline, attributed to loneliness during renovations, by introducing cardboard cutouts of human faces. The innovative solution has led to the fish's recovery and sparked widespread social media support.

In a unique effort to combat the effects of loneliness on a sunfish, the Kaikyokan aquarium in Shimonoseki, Yamaguchi prefecture, has introduced cardboard human companions. This unconventional solution came as a result of the aquarium's temporary closure for renovations, during which staff observed the sunfish's unsettling behavior.

After the aquarium shut down in December, the sunfish, known for its sociable nature, stopped eating jellyfish and began rubbing itself against the tank. Initial concerns focused on possible digestive issues or parasites, but staff member Mai Kato suggested the fish’s distress might stem from the absence of visitors, leading to its loneliness. To remedy this, the aquarium placed photographs of human faces attached to a line of uniforms around the tank—an innovative move that has reportedly yielded positive results.

The aquarium later updated its community via X, stating, “It seems to be in good health again!” and highlighting how the fish was observed waving its fins joyfully after the introduction of its new companions. This striking transformation from discontent to spirited playfulness underscores the significance of social interaction for animals in captivity.

The sunfish, approximately 80cm long and weighing nearly 30kg, is not commonly seen in aquariums due to the complex care they require. However, the creature's engaging personality allowed it to develop a rapport with visitors before the lockdown. Many fans of the sunfish took to social media, reminiscing about their experiences with the fish and pledging to return once the aquarium reopens.

This isn’t the first instance where Japanese aquariums have utilized creative solutions to enhance the lives of their animals. During the pandemic, Tokyo's aquariums organized video calls for eels to address their social needs as well. Such innovations serve not just the welfare of wildlife in captivity but also promote deeper public awareness about the experiences animals undergo within these environments.