Otago
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The Clutha/Mata-Au drains Lakes Wānaka and Hāwea and is New Zealand's largest river by catchment and by volume. Its best known trout water is the first 50 km below Lake Wānaka, from the outlet past Albert Town and Luggate to the head of Lake Dunstan, a nationally important fishery for wild browns and rainbows. Deans Bank, the fly-only reach just below the outlet, was once thought to hold more trout per square metre than any water in New Zealand. Expect numbers before size: fish of 0.2 to 1.8 kg (0.5 to 4 lb) are common, in a mix of ages, with the odd bigger fish from the braids. Outside Deans Bank the main river is open all year, so it is a winter option when most Otago rivers are closed.
It is a huge, fast river, and the middle of it is no use to you. Fish the edges, the side braids, the backwaters and the slow water behind boulders. The outlet reach carries only Lake Wānaka water and holds steady. Below Albert Town the Hāwea and the Cardrona come in, and Contact Energy's Hāwea Dam changes its release quickly by day and night, so the river below can rise or drop without rain. Read it at ORC's Clutha at Below Cardrona Confluence site: under about 300 m³/s it fishes best, 300 to 350 m³/s still gives some fishing, and above about 350 m³/s it is too high to fish from the bank. Early summer brings the caddis hatches, when Deans Bank has an evening rise and anglers fish dry flies into the dark. When brown beetles are about, a Coch-y-bondhu or a Humpy works. In winter, streamers fished through the side braids find browns and rainbows of 0.5 to 2.3 kg (1 to 5 lb). Below Luggate, where bank access thins out, anglers drift from the Luggate ramp to Bendigo and cast streamers to the banks.
Below Lake Dunstan the river is a chain of dams. The Clyde Dam, finished in 1993, holds Lake Dunstan, and the Roxburgh Dam, built in the 1950s, holds Lake Roxburgh. Before Roxburgh, salmon ran all the way to Lakes Wānaka and Hāwea, and the salmon in those lakes now are landlocked. From Clyde to Alexandra the river runs fast and silty, with small browns, willow grub feeders under the trees in summer and spawning fish below the dam in winter. Below Roxburgh Dam, sea-run salmon gather in the pools from late January into autumn. The 80 km below that is willow-lined and hard to fish, and the lower river from Clydevale to Balclutha, with the Matau branch below it, is the water for sea-run browns and salmon. The rules change by reach, so read the regulations below before you fish. Didymo is in the Clutha, so check, clean and dry your gear before you move to another river.
| Species | Abundance | Best Season | Size |
|---|---|---|---|
| Brown Trout | Primary | Nov-Apr, all year on the main river | 25-50 cm, a few bigger |
| Rainbow Trout | Primary | Nov-Apr, all year on the main river | 25-50 cm, a few bigger |
| Sea Run Brown Trout | Seasonal | Sep-Oct, Jan-Mar | 55-65 cm |
| Chinook Salmon | Seasonal | Jan-Apr | 55-80 cm |
No recent fishing reports for Clutha River
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