NSW Aquaculture Peak Body The meeting to consider the formation of an aquaculture peak body for NSW took place at the NSW Fisheries Port Stephens Facility on Saturday the 25th June at 10.00 am. This is a crucial time for aquaculture in NSW. The aquaculture industry in NSW needs a “voice” to promote what is the sensible use of natural resources. Land based aquaculture is still in its infancy due to a lack of incentives , and the excess of “red tape”. Much of this is directly due to the public perception of aquaculture and what constitutes “sustainable industry”. The P.B. needs to urgently address these and other issues. There are already a lot of good people involved in the aquaculture industry in NSW.
We have developed a set of instructions to clean the recirculation system. Student tested the instructions today. Full Clean and Maintenance. · Turn off all Shut Off Valves from Tanks 1-5 · Pump will drain the sump storing additional water in all Tanks. *Be careful that Tanks do not overflow. · When water falls below the ‘Sump to Pump’ outlet turn pump off. Do not run pump dry. · Siphon fish faeces and excess food from the bottom of Tanks 1-5 to a bucket/s. Use this water to water Chrysanthemums (good nutrient value for plants). · Remove the Riser from Tank 1 (large Trout) and use the hose spray with town water to completely rinse and clean riser. * Be careful to not spill contents of Riser when taking it out of tank. Rub and remove any algae from the Riser. · Use the Riser from Tank 1 to replace the Riser in Tank 2 (small fingerling Silver Perch) so as not to allow fingerlings to enter drain pipe. * Be careful to not spill contents of Riser when taking it out of tank. · Use the hose spray with town water to completely rinse and clean riser. Replace Riser in Tank 1 · Remove the Riser from Tank 3, then Tank 4, then Tank 5 and use the hose spray with town water to completely rinse and clean risers. * Be careful to not spill contents of Riser when taking it out of Tank. Rub and remove any algae from the Riser. · Turn Off the Sump to Pump valve · Turn the handle on the filter to Close. This will prevent the filter water emptying from the Filter Basket. · Remove the screw lid from the Filter Basket and empty and wash the basket with hose spray and town water. Replace basket after checking ‘O’ ring. · Lay the pool filter hose across floor from Sump to outside roller door and down the side of the ARC. · Remove Sump Drain Cap and balance pool hose in mouse of Sump Drain. · Open the Sump Drain Valve and drain sump. · Use town water and hose spray to ensure all excess food, faeces etc. is removed from Sump through the pool hose. · Close Sump Drain Valve, replace cap. · Begin to fill Sump with Rainwater Tank Water- will take approx 15-20 mins. · Open all Tank Shut-Off Valves. This will return excess tank water to Sump. · Open Sump to Pump Valve · Turn handle on Filter to Backwash. When sump has at least 6 metal cage divisions start pump. · Watch filter bulb to determine when backwashed water turns clear. Approx 1 minute? · Turn Off pump · Turn handle on Filter to Rinse. Run for approx. 10 seconds. Turn pump off. · Turn handle to Filter. Turn pump on. You will need to turn pump off if sump runs dry. Continue filling Sump with Rainwater. · Water level in Sump should balance out to 4 metal cage divisions. · Do not leave until balance is achieved and sustained.
Wyong Councillors- Mr Bob Graham amd Mr Neil Rose visited the ARC today. They were so impressed with our school community development that they have promised to return with the all councillors in the near future.
Photos of Feeders used in USA Recirculation Systems taken by Mr Godwin during his recent trip.
Thanks to MPGFish of Mt Penang Gardens Kariong (Paul Kelly) for the donation of a new recirculation System. 2 * 1000l CIBA Tanks, Biofilter, Pump and plumbing. The system will be installed into the ARC and used in preparation for a Spring Spawn of Silver Perch.
Our first priority is to ensure the safety of all those that enter the ARC. Students, Staff and Visitors. We have: - fitted a Fire Extinguisher - fitted locks to the fridge and freezer and designated the fridge as a chemical store- no human food or drink - relocated a cupboard which will also be classified as a chemical store and secure store for equipment - placed signs to notify users of the ARC about the risk of electrocution, slipping, tripping etc. and safe practices that should be followed - all lessons in MS and MAT underpin OH&S issues, especially those that are unique to the water environments that we work and learn in/near.
* need to source appropriate ‘pool’ signs for resuscitation etc. to be mounted in the ARC. If you have any other ideas please leave a comment.
The Trout have increased considerably in their food consumption rate and size. We will need to look into a further purchase of similar food. The Silver Perch are also thriving with the ‘dust/crumble’ produced with the help of the coffee grinder. The Bass are feeding but are not showing the same enthusiasm for their feed.
Cleaned Risers Siphoned excess food and faeces from bottom of T1, T2, T3, T4, T5, A3 Backwashed Filter & Rinsed Swept Water Test including Ammonia & Nitrate Tidied Topped up Tanks 1-5 with rainwater, A2, A3 with T1 water Added 120gms salt to A2 (possible disease??) Added 250gms salt & 250 gms of Bicarb Soda to sump (T1-T5) Fed Fish
400 Silver Perch fingerlings to T2. Used 'coffee grinder' to produce powder/crumble for new fish. Fish on Agistment from Mt Penang Gardens- MPGFish. Purchased from UARAH Fisheries, Grong Grong NSW. Fish transported in cardboard boxes. Excellent service.
We are introducing Biofilter 'Socks' (plastic fruit and veg bags) to hold the filter medium/material. Up to 20 socks- 1m * 20cm will be filled with filter material and then inserted into our Biofilter. We will experiment with other medium including cleaned oyster shells.
Filter Backwash and rinse today. Replenished water with Tank water approx. >100l. Concerns over lack of rain to replenish rainwater tank.
Cleaned Risers Flushed T1, T2 Siphoned bottom of T3, T4, T5 Backwashed Filter Flushed and cleaned sump Hosed floor of ARC Swept Replaced 1/5 20% of water in A1, A2, A3, A4 Water Test Tidied Topped up Tanks 1-5 with rainwater Fed Fish
An industry relationship has been developed through the CCAF (Central Coast Aquaculture Foundation) between Mt Penang Parklands/Gardens and Wadalba Community School Aquaculture Research Centre (ARC).
The ARC will develop an Aquaculture Management Plan for the Gardens with the goal to supply the park with a range of species grown in the ARC to restock the dams/wetlands. An assessment will also be done to provide advice on improvements to the current Kariong facility to improve growth and survival of current and future aquaculture species.
Involvement will begin immediately with: 100 Bass (70 mm to 120 mm) from Mt Penang will be transported to the ARC facility on Monday afternoon 6/6/05.
20 Murray Cod (120 > 150 mm) from Mt Penang will be transported to the ARC facility on Monday afternoon 6/6/05.
400 Silver Perch fingerlings (50 > 80 mm) from Mt Penang will be transported to the ARC facility on Friday Morning 10/6/05.
These will be grown out and then returned to Kariong.
Grading and counting of Trout commenced. Trout will be graded into 3 sizes- small, medium and large. Grading is essential to enable all trout to grow to their potential. Trout currently in T1 & T2 will be graded into Small T3, Medium T4 and Large T5. Trout will then be returned to Large T1, Medium T2. Reduction of stress is vital- stress, physical damage and handling (mucus) could cause short term and medium term deather to fish.