Students were introduced to the whitebait programme through a Powerpoint presentation followed by a visit to a spawning site to identify habitat and water quality suitable for inanga spawning, which provided the basis for the students’ development of a action project for their local waterways.
Amy-Rose said the overall vision of this project is to actively involve schools, tangata whenua and community groups in stream and catchment restoration throughout New Zealand.
Galaxid speciesInanga (Galaxias maculatus) is the most common Galaxid species and is found here around lowland rivers, streams, lakes and swamps, in almost any fresh water that it can reach in its migration from the sea.
“While adult inanga are often seen, juvenile inanga are by far the most abundant species of the annual whitebait run, generally making up at least 85 percent of the entire catch," Amy-Rose said.
“Aside from bringing great culinary pleasure to many of us, Inanga are also an important source of food for many birds and fish, including an important part of the diet of freshwater eels.
“It is vital we are able to recognise Inanga spawning grounds and understand the critical role that these areas perform for healthy stream ecology and the whitebait fishery.”
She said through participating in the project, students become aware of this role and can identify spawning grounds and develop plans to protect or restore both spawning and adult inanga habitat.
Te Kura o Muriwai and Te Puna Reo o Puhi Kaiti have been focusing on the Pakowhai Stream at Muriwai, where they recognised the need for riparian planting to stabilise the stream banks and reduce sediment settling over the spawning area, which severely limits the survival of inanga eggs.
Fenced-off siteLandowners from Maraetaha have provided a fenced-off site on a farm the stream flows through for the schools to plant and maintain.
On Monday, July 3, more than 800 riparian plants were put in the ground. This effort came about thanks to donations of a variety of riparian plants from the Women’s Native Tree Project Trust, and targeted funding from the Mountains to Sea Conservation Trust (WBC programme) to buy further plants from The Native Garden nursery.
Treyci Maynard’s class from Gisborne Intermediate School also took part in the ground preparation and planting component of this project.
Sonrise Christian School have recognised that the spawning site on the Matokitoki Stream just below their school has also been adversely affected this year by high flows and deposited sediment.
This led them to identify planting the stream banks near the spawning site to prevent slumping, and reduce sediment entering the stream at the saltwater wedge where the inanga spawn.
