Early settlers named the whitebait species 'Galaxid', after the galaxy, as they thought that the spots on their backs looked like stars in the night sky.


Whitebait catch consists primarily of the young of three species: inanga, koaro and banded kokopu; inanga is by far the most commonly caught species.


Giant kokopu, short-jawed kokopu and smelt are also occasionally present in the whitebait catch along with the young of many other fish such as eels, bullies and trout.


Most whitebait species spend part of their life cycle in fresh water and part in the sea.  However, some have adapted to being landlocked in lakes and no longer have to migrate to the sea to breed e.g. dwarf inanga.

 

In late winter and early spring whitebait migrate back up rivers and streams, finally settling and growing in bush covered streams and swamps. The start of the migration is thought to be influenced by river flows (i.e. shortly after floods) and phases of the moon.

 

Mature inanga adults migrate downstream to lower river sections and estuaries to spawn in grasses covered by water during spring tides. The eggs remain in the grass until the next spring tide covers them again when the young hatch and are carried out to sea. The spawning habits of other whitebait species are not well known.

 

The five galaxiid species are found in many different habitats from lowland swamps to rocky streams. Their presence appears to be closely tied to overhead cover and waterside vegetation.

 

Giant kokopu live in swampy and heavily vegetated streams, often in pools over a mud bottom. Short-jawed kokopu, banded kokopu and koaro prefer fast flowing rocky or boulder bottomed streams with forest cover. Inanga are less "fussy" but are generally found in lower catchment waters.

 

One of the major problems affecting the whitebait fishery is the destruction of habitat for egg laying or adult fish. As whitebait adults tend to live in natural swamps and bush covered streams it is in the best interest of whitebaiters to ensure that adequate areas of these habitats remain.

 

The Department of Conservation has been active in identifying whitebait spawning habitat and arranging for its protection. Protection has involved seeking the co-operation of landowners to have spawning areas fenced off from stock. The Department sees the protection of whitebait spawning habitat as playing a major role in enhancing the lasting viability of the fishery.

 

Another major problem is barriers that stop young fish from getting to adult habitat.

 

Please note that whitebait are native fish and the giant and short-jawed kokopu are under threat in many areas!

 

Your assistance in keeping the whitebait fishery healthy not only benefits you, but the health of New Zealand's natural living systems. Don't take more than you need.

 


 

 

 

 

Northland College Whitebait Connection Programme, 2013

Northland College is also the proud owner of a operational dairy farm and forestry block, which has been proudly utilised in the schools education programmes, where students receive practical experience in on farm activities, leading to NCEA standards. The school also had a strong history of involvement in the Lake Omapere restoration, annually taking students there for planting and water quality related activities including use of the SHMAK kit. Teachers also expressed a desire to intergrate education for sustainability concepts into this on farm learning.

The Whitebait Connection in class presentations were held in science or social studies lesson times with year 9 & 10 students, followed by a trip onto the Northland College Farm, and operational dairy farm with some outstanding freshwater habitat - including that of Northland Mudfish!

Northland College year 9 students checking water clarity of the Mangamutu Stream

Students investigated water quality, biodiversity and threats at the Mangamutu, Taikawhena and Tahone Streams with farm studies teacher Eric Alexander and WBC Coordinator Nicki Wakefield. The Royal Society of New Zealand's Primary Science Teacher Fellow, Eden Hakaraia also took part in field trips on the farm. Each stream had it's own characteristics that really showed the effects of the varying catchment land use types.

Mangamutu stream catches a mojority of the stormwater outflows from Kaikohe's streets, and accordingly plastic rubbish was a common sight along the stream.

Taikawhena Stream with golden coloured sediments comes from a source near Ngawha, and area of geothermal activity and mostly forestry and farm land use. Water was very clear, and occasionally smelt of sulfur. There were a large amount of Freshwater Crayfish/Koura found in this stream.

The Tahone travelled from a largely farm and residential catchment, and water clarity was much lower than the other two catchments, and water temperature higher, indicating a less forested catchment.

Selected year 12 students took part in a very special field trip to one of the fenced and largely undisturbed wetland to see a local endemic - the Northland Mudfish

The greatest highlight for WBC coordinator, Nicki Wakefield while working with Northland College was seeing students completely engaged with learning on field trips and participating in hands on learning opportunities. "Vocab such as catchment, biodiversity and stick caddis were completely new to these young adults at the beginning of the programme. But by the end students were describing their experience using these words, which can be a massive feat among teenagers".

Students of 10 Tahi checking water clarity of Tahone Stream

For more information on Northland College's WBC programme email their WBC coordinator Nicki Wakefield on nicki@whitebaitconnection.co.nz
 

 

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