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.

 


 

 

 

Huanui College Whitebait Connection 2011

Huanui College's year Year 10 Social Studies class were looking at 'Global Perspectives' in Term One, 2011.  Teacher, Kristen Sanderson, wanted the students to take part in the Whitebait connection programme as part of this focus so they could learn about their local freshwater environment and also consider how that compares with global freshwater environments.  Check out a picture of their catchment here.

They started by learning about freshwater environments and Whitebait in the class as well as being treated to a visit by American artist and educator, Stephanie Bowman, who was in New Zealand talking about her Longfin Eel project.  This really helped with getting a global persepctive!

Next we ventured out to the local stream by the school to see what we could find.  We found some Koura, macroinvertebrates and freshwater mussels - both are which are currenlty threatened so that was awesome to see! 

Next we went on a full day field trip to investigate the wider Horohora Catchment - following it all the way down to the estuary where it meets the sea.  We stopped at a river sampling site along the way and caught heaps of Longin Eel elvers - another threatened species living in the Horohora catchment!  After walking downstream via a bushtrack we discovered a huge waterfall that the Elvers must have just made thier way up - this gave us a whole new respect for these creatures!

All of this information was reported on by the students and they did research projects about Longfin Eels.  As part of their 'taking action for freshwater' project they decided that they would restore the wetland area by their school and were successful in gaining NRC funding for this project so fencing and planting is expected to happen in Term 3, 2011.  Awesome stuff Huanui College!!  Check out pictures of Huanui College's Whitebait Connection learning journey here.

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