Presentation on theme: "1.Georges River CatchmentGeorges River Catchment 2.Plankton StudiesPlankton Studies 3.Water Quality TestingWater Quality Testing 4.Environmental IssuesEnvironmental."— Presentation transcript:
1.Georges River CatchmentGeorges River Catchment 2.Plankton StudiesPlankton Studies 3.Water Quality TestingWater Quality Testing 4.Environmental IssuesEnvironmental Issues 5.Animal InvestigationAnimal Investigation 6.Fish DissectionFish Dissection 7.PicturesPictures 8.Ending CreditsEnding Credits Click on a slide, or otherwise wait until the next.
The Georges River Catchment is 196km 2. It is home to many different species of aquatic animals as well as Some of these species include: pelicans, crabs, prawns/shrimp, cormorants, bream, blackfish, oysters, shags, plankton and many others. birds.
Plankton is a tiny microscopic animal, and one species of it looks like this: The only way to view a plankton is under a microscope, like these people are. We watch the plankton and other species swim around in less than a drop of water! There are many species of plankton in the ocean. Plankton is used for science testing. To collect plankton, you need a very fine net, like this:
When we tested the water, we tested for Temperature, Phosphates, Dissolved Oxygen, Turbidity and acidity. MEASURMENTREADINGH/M/LCOMMENT DISSOLVED OXYGEN (ppm) 4ppmLOWVERY GOOD ACIDITY (pH)7MEDIUMPERFECT PHOSPATES (ppm) 0/1ppmLOWGOOD, WATER ISNT VERY ACIDIC TEMPERATURE (0˚) 16˚MEDIUMGOOD TEMPERATURE TURBIDITY (cm)60cmHIGHBAD. WATER IS MUDDY
ItemLikely SourcePollution Solution? Picture 1: Plastic Water bottles Shops Recycle when possible 2: Cigarette butts Smokers/ Shops Don’t smoke Fine people for littering. 3: Plastic Bags Shops Make enviro-bags (green bags) cheaper charge people for plastic bags.
Energy Producer Decomposer Consumer Sea- grass Fish Sun Bacteria, Marine Fungi Tail Walking Feet Hard Exoskeleton Nippers There are many different species of animals in the Georges River, and one of them is the Blue Swimmer Crab. The diagram to the right includes some of the features of the Blue Swimmer Crab. Below is a simple food chain of the Georges River.
When we cut open the fish, we started at the anal hole and cut up to its teeth or its mouth. We then cut down to the end of its tail, and pulled the fish open. Some guts (organs) that we found were: 1.The stomach 6. The bladder 2.The heart 7. The air bladder 3.The kidneys 8. The intestines 4.The egg sac 9. The liver 5.Gills 10. The lateral line When we dissected a fish we either dissected a bream (carnivore) or a blackfish (herbivore). Herbivore fish eat sea grasses and other sea plants. Carnivores eat other fish and molusces.