red fins, grumbles when lifted from water

Size
Length: 30–45 cm, Weight: 0.5–1.5 kg
Lifespan
8–12 years
Diet
Feeds on small crustaceans, worms and small fish. Walks across seafloor using three pairs of finger-like fin rays. Uses modified fins to detect and uncover buried prey. Feeds mostly at night.
Habitat
Sandy and muddy bottoms in shallow coastal waters from 10 to 150 metres depth. Often near rocky reefs and seagrass beds. Prefers sheltered bays with soft substrate. Walks across seafloor.
Range
Coastal waters of North and South Islands from Northland to Stewart Island. Most common in sandy bays and harbours. Also found in Australia, South Africa and Southwest Pacific regionally.
Endemism
Native
Main Threats
Bycatch in bottom trawl and set net fisheries is primary threat. Recreational fishing pressure in some areas. Habitat disturbance from coastal development and dredging. Climate change affects near-shore habitats.
Population
Populations managed under New Zealand's quota management system. Popular target for recreational fishers and caught commercially. Stock assessments indicate stable populations with sustainable harvest levels. Size and bag limits apply.
Conservation Status
Not Threatened
Some fish are built for speed. This one is built for walking. The red gurnard possesses spectacular red colouration and large, wing-like pectoral fins. It is a brilliant fish. Easily recognised by its bright red body and those massive fins. Three pairs of finger-like fin rays sit on the underside. These allow it to walk across the seafloor. They feel for buried prey. The modified fins also stir up sediment. This reveals hidden crustaceans and worms. A fish that tickles the sand. The mechanism is tactile. Not visual. The fingers do the work. The Māori name Kumu means red. Kumukumu is the reduplicated form. The walking behaviour is unusual for a fish. But it works well. The gurnard tickles the bottom with its fingers. It flushes out crabs and shrimp from the sand. When it feels something move, it lunges forward. It swallows the prey whole. It feeds mostly at night. This is when the crustaceans are active. A patient hunter. A strange hunter. The strategy relies on touch. The darkness provides cover. The movement is slow. The strike is fast. Firm, white flesh is highly regarded by fishers and chefs alike. The red gurnard is a popular target for recreational fishers. It is also caught commercially. Stock assessments indicate stable populations. Harvest levels are sustainable. Size limits and bag limits apply to recreational take. It is one of the few fish that has held its own against fishing pressure. The resilience is notable. The management is effective. The demand is steady. The supply remains. The balance is maintained. The walking fish of the sandy bays. Bright red and impossible to miss. It creeps across the bottom on its finger-like rays. A spectacular sight for divers. A tasty meal for those who catch it. The visual impact is high. The culinary value is confirmed. The dual identity serves both observer and consumer. The species occupies the niche fully. It exploits the substrate efficiently. It survives the net. Mostly. It walks because it cannot swim fast. It tickles because it is hungry. It is red because evolution has a sense of humour. The explanation is functional. The colour is likely aposematic or camouflaging depending on the light. The humour is anthropomorphic. But the result is the same. The fish persists. It adapts. It thrives. And the red gurnard does not care what anyone thinks of its walking. It works. The judgement is external. The utility is internal. The method is proven. The outcome is survival. It carries on.