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Ohau Channel Trout Fishing

The Ohau Channel links Lake Rotorua and Lake Rotoiti and provides excellent fishing for the large numbers of trout that migrate between the two lakes.

 

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Fish type Both rainbow and brown trout are found in the Ohau Channel.
Situation

The Ohau Channel is an outlet for Lake Rotorua that meanders from Lake Rotorua over flat, open farmland for approximately 2 km before it enters Lake Rotoiti. 

In August 2007 Environment Bay of Plenty started building a wall structure in Lake Rotoiti designed to stop water flowing from Lake Rotorua into the main body of Lake Rotoiti via the Ohau Channel.

The Environment Bay Of Plenty website has information about the building of the Ohau channel diversion wall.

Maps

Access map
Access map with topography

LINZ topographic map: (260 Map Series, 1:50,000)
U15 Ngongotaha

F&G pamphlet Rotorua Lakes access pamphlet >>>
Description

As there are limited spawning opportunities in Lake Rotoiti, trout move through the channel during the late autumn and winter months to take advantage of the spawning streams that feed into Lake Rotorua.

During spring (October and November) trout flock to the channel to chase the large number of migrating smelt that enter the channel to spawn, and the abundant food source means they grow to trophy sizes.

The most popular places to fish this waterway are at either end: where the channel enters over a weir from Lake Rotorua; or where it spills into Lake Rotoiti at the delta.

Opening day

October 1, opening day, at the Ohau Channel is a big occasion. of the year. At least 50 anglers arrive and claim their spot hours before the 5am official opening time. Fish and Game records show they will catch half a fish an hour each, at an average weight of 3kg a fish.

Fish numbers and size

When the trout emerge into Lake Rotoiti on the spawning run they are generally in prime condition, and so the channel can hold large numbers of prime condition rainbow and brown trout. Trophy trout of 4.5kg (10lb) are caught every year, usually browns. An 8.6kg (18lb) was caught durign the 2005-2006 season and a 9kg brown was landed in 2003.

Access

There is easy access to the channel as it enters from Lake Rotorua and good access to the delta area as it spills out to Lake Rotoiti.

The central section is less fished as it flows over private farmland; permission to fish this section is generally given readily.

During the buiding of the Ohau channel diversion wall, the:

  • Rotoiti Delta boat ramp near the Ohau Channel will be closed 
  • Okere Arm access lane has been removed
  • Okere Arm is restricted to 5 knots from the 5 knot/200 metre buoys to the south of Namaste Point
    (For maps and more details see Ohau channel diversion at the Environment Bay Of Plenty website.)

See the Lake Rotorua access map.

Methods This is fly fishing-only water. To get the fly down requires a fast sinking line, especially at the very popular weir where the channel begins.
Recommended tackle

Fast-sinking lines that can get lures down deep are preferred by the summer fisherman who can have success with a floating line and nymphs, especially during the spawning runs. A weight 6 or 7 rod is ideal.

Smelt flies work well in the channel day and night, on fast-sinking lines cast on heavy rods (at least no.8). It is essential that the tackle is heavy enough for the line to reach the bottom as soon as possible after it hits the water: for example, an Airflo DI7 high-density line which sinks at almost 18cm a second.

Recommended lures

Nymphs: Use a large, weighted dark nymph such as Hare and Copper or a Rough Nymph in size 12 to 14 or egg patterns such as a Globug or Muppit when trout are migrating through the channel during spawning runs.

Dry flies: This waterway is not highly regarded for dry fly fishing

Wet flies / Streamers: Use smelt patterns such as Grey Ghost, Doll fly, yellow and green Rabbit and Jack Spratt during the day, and dark patterns such as Fuzzy Wuzzy, Scotch Poacher or lumo flies (such as Black Marabou Lumo) during the night.

Regulations (1)
Applicable to Ohau Channel within the landmarks at either end.
Region Eastern region regulations
Season 1 Oct-30 Jun
Methods Fly fishing only.
No boats are permitted to anchor in the Ohau Channel.
Bag limit Trout: 8
Brown trout: 2
Size limit (cm) 350mm minimum

 

Marama Resort

Marama Resort

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