Atlantean Biological Adaptation: The Atlanteans are an offshoot of humanity that is biologically adapted to the deep ocean environment. For most Atlanteans, this means that can breathe underwater, endure the pressures of the deep (among other adaptations), and can only spend a very limited time out of water. He also possesses superhuman levels of strength, speed, endurance and durability, all by-products of his body being adapted to survive unprotected in the tremendous pressures of the ocean depths. Although other Atlanteans possess similar adaptations, Aquaman is super-Atlantean as well as super-human, and as such he has greater physical capabilities than does a typical Atlantean.
Amphibious Nature: Aquaman, as an Atlantean, and the son of a wizard and Atlantean queen, can breathe both water and air, but must return to the aquatic environment at various intervals; this length can be prolonged by the humidity in the atmosphere.
Enhanced Sight: His ability to see in the murky depths of the ocean allows him exceptional night vision while on land. He has claimed that his eyes are adapted to see at 6,000 fathoms (or 36,000 feet below the surface of the water).
Enhanced Hearing: several times more acute than human capacity.
Enhanced Smell: several times more acute than human capacity.
Superhuman Strength: Aquaman possesses superhuman strength on the order of 150 times human maximum, but his strength is always underrated, considering the company that he keeps. His strength is more than a match for most barriers such as wood, metals, brick or concrete walls. Only extremely durable metal reinforced barriers, have any chance of slowing him for any length of time. Aquaman frequently displays feats of Super-Atlantean (the average Atlantean can lift/press approximately 2 tons) and Superhuman strength. While not on par with Superman, he has proven capable of performing standing high jumps of 4 stories (both on land and from water), lifting and throwing a tank (at least 25 tons), and even managed to hold out for an incredible length of time against Wonder Woman in combat. His strength would appear somewhat dependent on how hydrated he is as he was capable of lifting a considerable chunk of a city block in Sub-Diego, and has proven capable of shifting an oil rig platform which would weigh thousands of tons as well.
Superhuman Endurance: Aquaman possesses strength and stamina that allows him to swim up to 150 mph for at least a 4 hour period without significant breaks for rest or recuperation.
Superhuman Durability: Aquaman's enhanced physiology enables him to withstand impacts that would kill and ordinary human, and critically injure an average Atlantean. He has been seen in ocean depths as deep as 20,000 feet (3.79 miles) below the surface of the water. That amount of pressure is 800 atmospheres, which is enough to turn an ordinary human into a smear of blood and bone dust. It seems that Aquaman has been able to travel as deep as 36,000 feet (6.82 miles) considering that he claims that his eyes have been adapted to see at that depth. He is not completely durable against large fire arms, but is able to take a direct hit by small arms fire without incapacitation. Regular bullets are shown to make him bleed but otherwise glance off his thick skin.
Energy-Heat Resistance: Aquaman is extremely resistant to energy/heat based attacks as he has with stood multiple blasts from Amazo's heat vision, Black Manta's heat beams, and energy blasts from an OMAC.
Superhuman Speed: Said to be the fastest thing underwater, he is capable of swimming at a consistent speed of 150 knots (175mph) for several hours. Aquaman can travel at much faster speeds for short "sprints." He has also been seen swimming at 10,000 feet per second. It's unknown how long he can keep up that amount of speed though. With his incredible speed in the water, Aquaman is able to create giant whirlpools.
Superhuman Reflexes: While no speedster, Aquaman's reflexes are superior to even near metahumans such as Deathstroke the Terminator, and his reflexes are on the order of 12-15 times faster than a normal human. Aquaman is probably the greatest swimmer in the world.
Marine Telepathy: Aquaman has the ability to communicate directly with sea life and has done so throughout most of his life. Lately he possesses a greater range of control that can actually force sea creatures to obey his whims. Currently, he requests their assistance and they comply. He has chosen to continue to request since, if he forces them to comply, they will ultimately lose respect for him. He now also has access to a quantum field phenomenon called "the Clear". "The Clear" quantum phenomenon has been observed with the subject called the Swamp Thing who called it the Green or the Morphogenic Field of Animal Man (also called the Red). Aquaman is also an accomplished telepath in general and can perform such telepathic feats as mind to mind communication, mind probes, mental domination of a non-aquatic mind, and mental attacks. The potency of such mental domination is unclear but he has been seen to use his powers to great effect against the White Martians and Doctor Polaris.
Access to the Clear: Aquaman has the ability to sense the primal emotions of aquatic creatures through "The Clear". The Clear seems to function as a universal consciousness of all sea life. Via it he can communicate or command sea life on the other side of the planet. He can see what they see and much more what he is only beginning to realize. He can also push his telepathic powers to reach out to the higher land creatures to find that element of their brains that was once an aquatic dwelling creature. This may account for Aquaman's facility with language.
Sonar Location: A sonar power which allows Aquaman to detect things when blinded. A possible side effect of his gift from Posidon or from the nature of his advanced mental powers, Aquaman can use this sonar-like sense to detect objects much as a dolphin might. The range of this power is unknown.
Water Sense: He has a sixth sense of "feeling" flowing water over 47 feet away through any known surface or material and in any direction.
Sorcery (formerly) : His mutation into the Dweller of the Deep through a bargain with ancient sea gods gave him untold amounts of powerful ancient magics.
Master Swimmer: Aquaman is a master swimmer. Perhaps the greatest there is.
Expert Combatant: Aquaman excels at hand-to-hand combat and overall martial ability.
Expert Tactician: He has an advanced strategic sense, and has natural leadership qualities.
Accomplished Diplomat: His natural autocratic nature does not suit him well in environments where democracy is an issue but Orin is a natural commander and his ability has served him well in the protection of Posidonis.
An approximation of Aquaman's strength would put his lifting/pressing capacity of at least over 60 tons while on land, depending on how long he has been out of water. While hydrated sufficiently, Aquaman has twice proven capable of lifting weights in excess of 10,000 tons.
Water Deprivation: Aquaman must return to water after a period of time or he will weaken.
Waterbearer Abuse (formerly): Overuse of the Waterbearer Hand for violent means will cause the Thirst to attack the Secret Sea.
Cybernetic Hand (formerly): Aquaman's left hand was eaten by piranha and was replaced with a harpoon. When that harpoon was later destroyed, S.T.A.R. Labs engineered a multifunction prosthetic. Its primary weapon, a retractable harpoon, could be drawn into its casing to be temporarily replaced with a prosthetic hand. The harpoon line was made of a tungsten steel cable that was capable of supporting 2 tons without breaking. It also was equipped with the ability to carry a powerful electrical charge. The harpoon, made of a high-grade hardened vanadium-titanium alloy, could be made to spin at high speeds and act as a drill, launched at an opponent to entangle them, or to wrap around an object to prevent a fall. Later, Orin had a new prosthetic hand that functioned as his normal hand does, but it was able to form limited types of bladed weapons with a direct application of his will. The material is unknown, and the source of that hand has not been revealed.
Harpoon: normally had a harpoon attached to a retractable line that he could use to fire at ranged targets.
Cybernetic Weapon Alteration: Could be altered to form weapons.
Trident of Poseidon
Waterbearer Hand (formerly): given to him by the Lady of the Lake. The hand was magical in nature and possessed various abilities.
Molecular Manipulation: Aquaman can alter the shape and density of the hand.
Healing: It possesses healing properties.
Farsight: Can be used as a scrying pool.
Negate Magic: Can negate any other magics.
Prolong Adaptation: Significantly increases the time Aquaman can spend out of water.
Independent Life: The hand can be separated from Aquaman and continue to work.