The Gyojin clan share some basic abilities related to their genetic traits, such as: their incredible physical abilities (about 2 times stronger and 1.5 times faster then a regular human), a naturally occurring mucoprotein (common to fish) that is both a protection against bacterial infections but also a natural insulator, the ability to breathe underwater, an uncommon resistance to D-rank and under water techniques, and finally incredible swimming speed.
Then, as you rise amongst the clan’s rank, a clansman develops/is taught some new abilities: a strong affinity with water (being able to use B-rank and under without handseals as well as defining their resistance to water jutsus, being unaffected by C-rank and under), a new branch of taijutsu called Gyojin Karate (customs to be submitted), the ability to sense bodies of water and everything inside a water source, and ultimately high rank clansman are allowed to sign the contract with the mighty Sea Kings
