cold-water char of the high country lakes

Size
Length: 30–50 cm, Weight: 1–2 kg
Lifespan
5–7 years
Diet
Aquatic insects, small fish and crustaceans. Lives in small, steep, headwater streams of the South Island. A cold-water specialist, living where the water is cold enough to hurt your hands.
Habitat
Small, steep, headwater streams of the South Island where the water is cold enough to hurt your hands. The fish of the high country, living where the air is thin and the summers are short.
Range
A handful of South Island catchments, particularly in Canterbury and Otago. Most common in small, steep, headwater streams with cold, clean water. Introduced from North America, with small populations.
Endemism
Invasive
Main Threats
Habitat loss from water extraction, farming and forestry. Sedimentation from land clearance. Competition with brown and rainbow trout. Climate change affecting water temperature poses additional risks.
Population
Introduced, but rare. Brook Char have established small, self-sustaining populations in a handful of South Island catchments. Not as widespread as brown or rainbow trout, and highly prized by anglers.
Conservation Status
Introduced
The jewel of the headwaters. This fish belongs in the highest, coldest streams. The brook char looks like a trout that has been painted by an artist with a vivid imagination. The back is dark olive-green, covered in pale, worm-like markings. Bright red spots surrounded by blue halos dot the sides. The lower fins are edged in white and black. Breeding males display bright orange-red bellies. It is the prettiest fish that will ever be caught. A fish that looks like it belongs in a gallery. The colouration is striking. The pattern is complex. Cold-water snobs define the species. Brook char cannot tolerate warm water, polluted water or even slightly murky water. They need it clean, cold and fast. That is why they are found in the highest, steepest streams. The water is too cold for brown trout. It is too fast for rainbows. It is too remote for most anglers. They feed on insects, small crustaceans and the occasional unlucky mouse. A fish that demands perfection. The standard is high. The environment is specific. Not native to New Zealand. Brook char were introduced from North America. The hope was to add another sport fish to the mix. They never became as popular as brown or rainbow trout. But they found their niche in the cold, steep streams where no other trout wanted to live. Small, self-sustaining populations established in a handful of South Island catchments. An immigrant that found a home. The adaptation was successful. The distribution is limited. To catch a brook char is to catch a living jewel. It is the fish that makes an angler crawl through bush. They wade through snowmelt. They forget their own name when it hits the fly. The fish of the high country. The one told to fishing mates about, without telling them exactly where it was found. The secrecy is part of the allure. The effort is significant. The reward is visual. The stream is cold. The char holds in the current, red spots glowing, blue halos bright. The fly drifts past. The char rises. The line goes tight. The angler forgets their name. The moment is suspended. The connection is immediate. The struggle is brief. The release is respectful. The memory persists. That is the point. The experience defines the value. The location remains secret. The fish continues. No one told it otherwise.