wahoo, fastest fish on the reef edge

Size
Length: 100–150 cm, Weight: 10–20 kg
Lifespan
5–8 years
Diet
Small fish and squid. Hunts in open water using incredible speed. Uses its razor-sharp teeth to slice through prey. One of the fastest fish in the ocean, capable of swimming at 75 km/h in short bursts.
Habitat
Open ocean waters near the surface, typically from the surface down to 50 metres depth. Prefers warm and clear waters with temperatures above 20°C. Often found near current lines, floating debris and offshore islands where prey concentrates.
Range
Tropical and subtropical waters worldwide. In New Zealand it is a summer visitor to northern waters from Northland to the Bay of Plenty. Most common in warm summers with high sea surface temperatures above 20°C.
Endemism
Native
Main Threats
Commercial and recreational overfishing is the primary threat. Targeted by longline and game fisheries worldwide. Bycatch in tuna fisheries. Climate change shifting tropical species southward. High value in the seafood market drives continued fishing pressure.
Population
Global populations are considered stable due to high reproductive rates. The species is managed as a highly migratory fish across international waters. In New Zealand it is a seasonal visitor with no targeted fishery. Recreational catch limits apply when the species appears in northern waters during warm summers. Better international cooperation is needed for long-term management.
Conservation Status
Not Threatened
The name wahoo comes from the excitement of anglers who hook this powerful fish. It sounds like the noise you make when it hits your lure. Wahoo. The wahoo is one of the fastest fish in the ocean, capable of swimming at speeds exceeding 75 kilometres per hour. Its body is long, slender, and brilliantly coloured, with electric blue vertical bars on a silver background. The bars flash when the fish turns, a living strobe light in the blue water. Its razor-sharp teeth can slice through almost any prey. Wahoo do not swallow fish whole. They slice them, cutting through scales and bone like a hot knife through butter. The teeth are serrated, like a steak knife, designed for shearing, not gripping. It is a summer visitor to New Zealand's warm northern waters, arriving when the sea temperature rises above 20°C. From December to April, it patrols the current lines, following schools of mackerel and squid. Then it leaves, heading north to warmer water, disappearing until next summer. It is a bucket-list fish for serious anglers. Fast, powerful, and spectacular when it jumps. A wahoo on the line is a wahoo in the air, tail-walking across the surface, throwing spray in all directions. The Maori name is not recorded. It lives offshore, in the blue water, out of sight of the people who came before. They may have seen it jump. They may have wondered what it was. Populations are considered stable. No formal stock assessment exists for New Zealand waters. It is caught as bycatch in tuna longline fisheries, but no one targets it here. Too rare. Too unpredictable. A summer visitor that comes and goes as it pleases. That is the wahoo. Fast, toothy, and electric blue. A fish that makes you yell when it hits, then leaves you wondering where it went.