Archives For 30/11/1999

Lan Pham is a Freshwater Fish Ranger from DOC’s Coastal Otago Area Office, she writes about an exciting new project to spread the love of New Zealand’s freshwater fish species.

A Lowland longjaw galaxiid swimming in a stream.

A Lowland longjaw galaxiid – classified as critically endangered

For many our native freshwater fish species are most commonly encountered is in a whitebait fritter, but in Otago a new project aims to change the way local communities experience and relate to our unique freshwater species.

The Otago region is a biodiversity ‘hot-spot’ for a fascinating group of galaxiids—native freshwater fish, which unlike their whitebait counterparts, do not migrate to sea. Instead, these non-migratory galaxiids live out their lives in the stream or river where they hatched. Often these few remaining populations have passed under the radar of their human neighbours. However, as freshwater resources are coming under increasing pressure, the need to raise the profile of these galaxiids is of utmost importance, meaning the time for action and getting to know our galaxiids before we lose them for good is now!

Kids watching two DOC rangers electric fishing for galaxiid.

Electric fishing for the infamous Clutha flathead galaxiid in Boundary Creek

‘Growing Otago’s Galaxiid’s’ is an initiative that has sprung out of Otago’s Growth and Engagement Strategy. It’s a fresh start that aims to get local communities, irrigation groups and foresty companies excited and engaged with their local species, and to facilitate what measures/activities/events they want to drive to help conserve their galaxiid species.

The project is in its first month and there has already been some exciting successes. Several schools have signed up to partner with local fish-friendly landowners who are keen to host restoration sites on their properties. We had a fun visit to the Conservation Award-winning Waitahuna School and met their local galaxiids at Boundary creek and are working with Kids Conservation Club and City Forests on an exciting team project involving our nationally endangered Eldon’s galaxiid.

A DOC ranger shows attendees the creatures living in Oamaru Creek.

Discovering what fascinating creatures live in Oamaru creek!

Only time will tell whether we are on to a winning start with spreading galaxiid love throughout Otago. But we will sure be doing our darnedest to try new things, involve communities at every step of the process and let them take the reigns and run with the projects themselves into the future.

Our big vision is that communities will drive their own galaxiid conservation projects, landowners and forestry companies will actively protect galaxiids on their land and local businesses will support their local galaxiids through sponsorship. Our hope is that the galaxiid love we are seeding during this project is something that will continue to grow within communities, far beyond what DOC alone could ever hope to achieve!

A Clutha flathead.

A Clutha flathead

Brian Sheppard works for DOC at National Office in Wellington. He writes about his recent surprise at finding a giant kokopu living in the stream near his house in urban Wellington: 

When I lived in the UK, I enjoyed the occasional bowl of whitebait but I couldn’t believe my eyes when I moved to New Zealand and found that our whitebait are the size of small matches rather than large pencils. I have eaten them, and even enjoyed them in a guilty way. Why guilty? I am used to eating eggs, whether from chicken or fish, but am more comfortable with the prospect of allowing the offspring to grow a bit before I devour them.

New Zealand whitebait.

Our whitebait are the size of small matches.

Working in DOC, I follow the arguments about managing streams and their margins and, amongst other things, the impacts of riparian management on the breeding cycle of our native galaxiids, which, when harvested as babies, are our whitebait.

My interest took a new turn when I learned that a giant kokopu had set up home in our local stream in Wellington. I grabbed my camera and went on big game safari. When I saw this beautiful beast, which seems to be about 20 cm long, it was me rather than the fish that was hooked.

Giant kokopu discovered in a Wellington stream.

The beautiful beast

On a second visit, in brighter lighting conditions and from a better position, I was able to see it in its full splendour.  It is coloured like the night sly, framed with reddish fins. After some frantic reading, I understand that the name galaxiid refers to its patterning that it reminiscent of a galaxy. I also read that it feeds on small koura and any insects that happen to fall into the stream. When I saw the size of its mouth and its fierce array of teeth, I realise that it must be a monster for unsuspecting invertebrates.

I have no pretence about being a ‘fishologist’ but its swelling belly made me wonder if it is a mum-to-be.  Having shown the photos to others who are more familiar with these things, it seems to be likely, so the safaris will continue.

The giant kokopu appears to have a swelling belly.

A swelling belly, possibly more kokopu to come

I have lived in my house since the mid 1980s and been aware over the years of the great efforts that have been made in cleaning up the stream, reducing pollution, looking after its surrounding vegetation and protecting its banks from erosion. In this urban landscape, all of that hard work is paying off. ‘My’ giant kokopu has made its home under a gabion basket that reinforces the bank against erosion during the periods of intense flow that follow heavy rain.  With so much asphalt and so many storm water drains that feed the stream, the water flow can quickly change from a trickle to a raging torrent, the back to a trickle as the water flows into the harbour.  All of this, in some mysterious way, is an essential part of the life cycle of these beautiful fish, and it all happens in urban Wellington.

The stream where the giant kokopu was found.

Lots of work has gone in to cleaning up the stream

Is this really a mum-to-be?  Is there a dad-to-be on hand to fertilise the eggs?  Where will this happen, and will there be a happy ending?  What’s more, will I ever find out?  I think that a few more safaris are needed.

Giant kokopu in urban Wellington.

Is this really a mum-to-be?

by Anna McKnight, DOC Community Relations Ranger

The famous Trout Centre ‘fish outs’

The Tongariro National Trout Centre is world famous in the central North Island for its kid’s fish outs.

One on one time with volunteers crazy about fly fishing

Fishing for your first trout with a volunteer angler is a big part of local identity – you catch a trout at the children’s pond when you are young, and then grow up and go on to take your own children and grandchildren.

Kids fishing – an intergenerational affair

Tongariro Trout Centre Society president Rob Lester explains, “I think we are the luckiest volunteers when you see the delight on the children’s faces”.

There are seven fish outs a year that attract up to 200 children at a time and bring visitors in from out of town.

Local kids catch their first trout on kid’s fish out days

Tongariro Trout Centre Society

The Tongariro Trout Centre Society was incorporated in 2001 to develop, promote and expand the Tongariro National Trout Centre. In partnership with DOC and Genesis Energy, the Centre has become a place that not only promotes the Taupō Fishery, but is also a leading advocate for freshwater conservation.

Volunteers with Genesis Energy on sharing the river

History of the Tongariro Trout Centre

The land was originally gifted from the Downs family and in 1926 a trout hatchery was established. The site was chosen for the purity and temperature of the water from the Waihukahuka spring and stream—cool, clear and clean.

Blue Gold – interpreting the importance of freshwater

In 2003 the River Walk building was opened to help promote the Taupō Fishery.

The Taupō for Tomorrow education programme classroom was built in 2006 and named after the late kaumātua, Whakapumautanga Downs.

2011 saw the opening of the Genesis Energy Freshwater Aquarium where you can get an up-close and personal experience with many of our native species such as kōkopu and kōaro.

The visitor centre was also upgraded with interpretation that includes a 20 minute film and a series on freshwater conservation titled ‘Blue Gold’.

Whio/blue duck

Whio (blue duck) can now be seen from the grounds of the Tongariro Trout Centre due to a local collaborative effort on predator trapping. It has hosted Whio Family Day for the last three years.

More than a trout on the end of the line

It is exciting to see the Tongariro Trout Centre not only giving us the buzz of a trout on the end of our line, or even bringing us face to face with a kōkopu or whio for the first time, but leaving us with a deep understanding of the importance of clean freshwater for our future.

The children’s pond in action

Working together, in partnership with our volunteers, is fast tracking us towards our dreams and goals to preserve our freshwater for future generations.