Remains of Hector's have been found in sevengill and blue shark stomachs. This glitch was fixed while developing the Blue Shark torpedo; a more lightweight variant. Modern examples include the blue shark and bull sharks. He is also equipped with the Blue Shark Fighting Fins and the Sword of Pardolis. Blue Shark torpedoes are fitted to the Incheon class frigate (FFX). After release, the Blue Shark independently searches for the target. On 18 July 2017 a suspected blue shark was spotted close to the harbour. He usually calls the Blue Shark "Sharky", implying that they share a very strong bond. The blue shark is also ectothermic and it has a unique sense of smell. Predators of the common blanket octopus include the blue shark, tuna, and the billfish. Predators of "H. atlanticus" include the blue shark, Hawaiian monk seal, sperm whale, and swordfish.