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Native Fish Logan City Council provides 6 FREE native fish to Logan residents each year. Other locally native fish which can be released into ponds and dams without a Fisheries permit are: • Agassiz’s glassfish or olive perchlet (Ambassis agassizii) • Australian smelt (Retropinna semoni) • Bug-eyed goby (Redigobius bikolanus) • Duboulay’s rainbowfish (Melanotaenia duboulayi) • Empire gudgeon (Hypseleotris compressa) • Firetail gudgeon (Hypseleotris galii) • Fly-specked hardyhead (Craterocephalus stercusmuscarum fulvus) • Ornate rainbowfish (Rhadinocentrus ornatus) • Pacific blue-eye (Pseudomugil signifier) • Purple-spotted gudgeon (Mogurnda adspersa) for Mosquito Control DO NOT release any fish into any creeks and waterways. You may need a Fisheries permit to introduce or relocate different types of fish into some areas. For more information contact: Department of Agriculture and Fisheries Phone: 13 25 23 Logan City Council Pest Management 213 Queens Road, Kingston Phone: 3412 5397 Email: [email protected] Web: www.logan.qld.gov.au Logan City Council’s Pest Management team provide Logan residents with native fish to help control mosquitoes on their property. These fish can be used to eat the mosquito larvae in ponds, dams and other permanent and semi-permanent water bodies. Why does Council want to control mosquito numbers? Mosquito control is carried out to prevent the spread of mosquito borne diseases such as Ross River virus, Dengue fever, Australian encephalitis, Barmah Forest virus and Zika virus. Animals can be susceptible to disease such as heartworm in dogs through transmission from an infected host. Mosquitoes can also be a significant pest, which can ruin or prevent outdoor activities in the warmer months of the year. Residents are required under the Public Health Act to prevent, control or eliminate mosquito breeding. How does Logan City Council’s Pest Management team control mosquito numbers? Chemical/Bacterial Control – Target specific and environmentally friendly pesticides are used in ponded water identified to have mosquito breeding. Biological Control – Use of an organism to limit and control another organism. Many species of fish and some insects eat mosquito larvae as a food source. Public Education – Residents are encouraged to take action and prevent breeding on their own properties. To find out how contact Council for a mosquito control for households brochure. Why do we use native fish? Native fish are already acclimatised to the local environment and conditions. Exotic fish can cause dramatic effects to an ecosystem and should not be used in ponds, pools and dams. Mosquitoes require water for egg laying and larval development, therefore backyard ponds and dams can be ideal. Native fish act as a biological control feeding on the larvae and effectively controlling mosquito numbers. What should you do with the new fish? • Before adding plants and fish, make sure equipment such as filters, fountains and waterfalls are in working order. • Have vegetation such as lillies, in the pond prior to releasing fish. Alternatively, grow your in-pond plants in containers, as this will make removal easier during routine maintenance. Plants can be purchased from a reputable nursery to ensure no prohibited pest plants are introduced. Allow at least a week for plants to settle before adding fish. • Take fish home immediately and keep them out of the sun, in a cool place until they are released. • When introducing fish, float the bag or container of fish in the pond to equalise the water temperature for about 10 minutes. • Add frequent small amounts of pond water to adjust the fish to other pond water conditions. • Do not feed your fish initially for 2 days. If there’s not enough mosquito larvae present in the water, then only feed them once a day with enough food as they can consume in 5-10 minutes. • Once released into the new environment, the fish should breed and increase in numbers providing no predation or competitive fish species are present in the water bodies. How can pond design prevent mosquito breeding? • • Design your pond or dam with a simple shape, ie. square, circle or triangle. Complex pond shapes increase the edge area where mosquitoes prefer to breed. The edges and bays should be steep and the pond and dam deep to make conditions more favourable for fish and predators that can feed on the larvae. • Good water quality will ensure biological controls are healthy and sustained. • Avoid emergent vegetation around the pond or dam such as grass or reeds. Emergent vegetation provides a safe haven for mosquito larvae.