• Brief History of the Origins of Poronui Trout

    The Wye RiverA lot of confusion exists over the establishment of trout in the North Island of New Zealand, especially brown trout. What we do know is that several attempts were made to bring trout here from the UK, most of which failed. However, it appears the first successful shipment was the second generation of ova stripped from the English Chalk streams, the Itchen and the Wye.

    Itchen RiverThe ova was packed on top of moss and then surrounded by huge blocks of ice for shipment to hatcheries in Tasmania. As stated earlier, several attempts were made before finally a shipment, with about 30% of the ova surviving, was landed. These eggs were hatched out and then raised to maturity at which point they were subsequently stripped of their ova and this was fertilised and transported to New Zealand to the Wellington Acclimatisation Society’s hatchery in Masterton. This hatchery is still in existence today and is used to raise rainbow trout as a project for the local intermediate school.

    Liberations into the Taharua

    Brown trout at PoronuiExact details on where the liberations were made from here are sketchy, but it appears the first liberations into our district would have been in the late 1870s, and records only ever note one release of trout into the Taharua in about 1878. This was said to have taken place at the very top of the stream, most likely in the vicinity of the first bridge that crosses it on Taharua Road.
    Because there are no records of other fish ever being released into the Taharua, it is a commonly held belief that the trout stocks contained within it are possibly the purest genetic strain of the chalk stream trout left in the world. The English streams have been overstocked and re-stocked for years and today the trout within are little more than a domestic strain gone wild. I personally often wonder if the distinct colouration of the Taharua fish lends itself to the environment (lots of light coloured sandy bottoms producing silvery trout) or the genetics. Certainly if you look at photographs of the old English fish they look a LOT like Taharua fish.

    Liberations into the Mohaka

    Brown trout at PoronuiThe Mohaka fish have a more diverse history. No doubt the first Mohaka liberation would have been at the same time as the Taharua, given that the transportation routes are obviously the same, but subsquently countless liberations have been made from various sources and importations, and it would be virtually impossible to trace the gentic background of the fish given the size of the river and its catchments. Also as tagged trout have been caught in the Mohaka that were from other river systems, even internal genetic displacement could have had some effect, though with the range and amount of spawning habitat throughout the system, it is unlikely anything could effect the stocks as they are now.

    Dispelling the Myths

    One myth that should be displaced here was popularised by Kiwi mythology. When people talk about ‘German Browns’ in relation to New Zealand they are talking nonsense. There is no such thing here. The name German Brown is an American one, and no stocks of Browns were ever brought here from the North American continent. The Americans coined the phrase and to this day many people in the US believe their brown trout came from Germany. The reality is that their stocks, initially, came from the UK – Ireland in fact. The term ‘German Brown’ originated because the person who imported them, Mr Maher, was German.. the fish never were.

    The other phrase you will commonly hear is “Loch Leven” brown. This is also a myth. It is usually used in realtion to the golden-sided orange spotted brown trout. Certainly some ova was brought to New Zealand from Loch Leven, however, nothing indicates any of it ever made it into the Taharua. By the time Loch Leven trout were introduced to this country the established stock were such that it is doubtful any of them could have had any great effect on the genetic makeup of the future stocks. After the passage of over 120 years, it is even less likely now. Studies have shown that in most cases the coloration of brown trout is habitat dependant and if you take fish from the same redd and expose them to different environments they both colour different. A trout in the Kaipo sitting on top of brown rocks is going to be darke and heavily spotted. A fish sitting on a pumice bar in the Kaipo may be silvery. It basically has nothing to do with genetics.

    So forget the terms ‘German Brown’ and ‘Lock Leven brown’ – there is no such thing.

    The rest of the rivers fit the same category as the Mohaka and with so many liberations it is impossible to trace the exact origins of the fish, but there are a couple of myths you can dispel. No Rainbows came form the ‘Russian River’ either as far as it is recorded. They actually came from the McLeod and Sonoma Creek. But in reality so many introductions came after this that it’s a pretty mixed up mess. I would just say that we know they came from California. And a lot were steelhead.

    The main book I refer to for this information is ‘Gamekeepers of the Nation’ by Robert McDowell. The Lodge has a copy that I have in my possession. If anyone wants to look at it please let me know. What’s written above is from memory so I wouldn’t publish this as the last word on the subject, best the details be checked against the book.

    ©Clark Reid, 2004-05-24 but reproducible in any form suitable, even loo paper.

    About Clark Reid

    NB: Clark Reid is a fourth generation New Zealander and one of New Zealand's best known Fly-Tiers', so much so that Umpqua Feather Merchants retain him as one of their "Signature Fly-Tiers" and he has been their head of Product Development for New Zealand and Australia. He is the inventor of the famous "Clark's Cicada" which has been the number one selling New Zealand trout fly for several years.  Clark's conservation efforts have seen him in the role of secretary of the New Zealand Federation of Freshwater Anglers for two terms, Founder and Inaugural President of the Wellington Fly Fishers Club and Matamata Freshwater Anglers Club and a councillor on both the Wellington Fish & Game Council and the Eastern Fish & Game Council. He was recently awarded life membership of the Wellington Flyfishers Club.


     We were able to find this information about the rainbow trout from California from Bill Lynch, of the Sonoma News.

    "In 1883, The Auckland Acclimatisation Society made contact with a Mr A.V. La Motte, who operated the Lenni Fish Propagating Company in Sonoma Creek, near the mouth of Graham Creek, a tributary at the northern end of our watershed in Sonoma Valley, California.

    According to an article in the July 21, 1883 Sonoma Weekly Index: ".... Mr A.V. La Motte, Superintendent of the Lenni Fish Propagating Company, informs us that the Company sometime since shipped 30,000 trout eggs to Auckland, New Zealand, Acclimatisation Society, and have received a report from them that they arrived in better order than any prior lot they had received from other parties...."

    In 1983, a painting by a New Zealand artist commerating the 100th anniversary of the introduction of the Sonoma rainbow trout to New Zealand was given the U.S. Ambassador to New Zealand, Gordon Growne, a Californian, who in turn presented a reproduction of the painting to then California Governor George Deukmejian, who in turn gave it to the Sonoma  Valley Chamber of Commerce."

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