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Free Visit & Consultation
Grass carp may be the aquatic weed eating silver bullet you are looking for, however as every site is different there a number of factors that may need to be considered or addressed before a release can occur. We have experts regularly travelling the country to monitor sites and manage fisheries, meaning at any time someone may be closer to helping you than you think. By contacting us, we can arrange for a free site visit during these exercises.
If you have an immediate concern feel free to email us and attach some pictures of the problem and we will be happy to help. Things that will help us to help you are sending us pictures of the weeds or algae causing the problem, size and/or location of waterway (address or Google Maps Screenshot/GPS), what the site is used for, and how water both enters and exits your waterway. If you are happy to wait we can cover all of these factors in our discussion and tailor a specific plan to suit your site.
We are a one stop shop family business. We are able to look after the whole process – from growing the fish right through to delivering them to your waterway.
Many of our clients prefer an on-going aquatic weed management agreement to provide confidence; bearing any perceived risk of the introduction and providing contractual maintenance. The later often includes site mapping, drone surveys, flora and fauna biomass composition, monitoring the effectiveness of the fish, ensuring KPI’s are being met, and providing recommendations for better on-going practices and complimentary solutions. We encourage our customers to discuss this with us as it allows for the continual improvement that our waterways deserve.
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Pest Fish Management
New Zealand has a sparse and regionally diverse range of freshwater fish fauna with most of the native species belonging to just four families of fish. Unfortunately because of our sparse native fish fauna, a large number of undesirable species have been introduced. Koi carp, wild goldfish, and the brown bullhead catfish are nationally undesirable with other species such as Rudd, Tench, and Redfin Perch having different status’s across differing Regional Councils.
Koi feed like a vacuum cleaner stirring up the bottom, muddying the water (depleting oxygen levels) and destroying native plant and fish habitat. Koi consume a wide range of food, including insects, fish eggs, juvenile fish of other species and a diverse range of organic matter. Bullhead catfish (Ameiurus nebulosus) were mistakenly introduced as channel catfish into New Zealand in the 1870s. They are a robust fish with distinctive whisker-like barbels, sharp spines and grow to around 30cm in length. Unfortunately they stir up sediment and prey on any native fish or animal that they can fit in their mouths.
NZWR employs a wide range of techniques for removing pest fish. Most commonly pest fish removals are achieved through a combination of netting, traps, baiting and electric fishing machines. We have all the special permits, the experience, and equipment ready on hand. As trusted providers to many Councils and Biosecurity NZ we offer the development of a pest fish action plan to guarantee our commitment to health and safety, the conditions of our permit and procedures you should expect from anyone fishing in our waterways.
Contact us for a discussion and how we can tailor a specific plan for your site!
Fish Capture, Holding and/or Relocation
We provide a complete service for removing both the desirable and undesirable species from a range of waterways. NZWR is able to target certain species, hold or relocate them as per our clients instructions. It is a service we can readily provide as we have the special permits and contacts who approve relocation through MPI Fisheries Division.
The most common application of this for NZWR is during desilting works. This is where Councils, developers or land owners seek to remove the soil that gets washed into a site via the upstream water source, side embankments, organic matter from dying vegetation and leaf litter, waste from fish and wildfowl – requiring the fish to be removed before the works can begin.
Live Fish Transport
If you have commercial quantities of live fish that needs transportation or to be relocated for you we will be happy to arrange a transport solution for you.
We travel literally from Cape Reinga to the Bluff and have the ability to keep fish alive during long periods of domestic road transport.
HAVE A WATERWAY THAT NEEDS ATTENTION?
Organise a free site visit and quote with us