Indicators of Water Quality
Aim: To determine the water quality of Bennelong Pond
Method: Look in the collection trays to identify some of the organisms that live in Bennelong Pond
To support a variety of very sensitive bugs the water in Bennelong Pond would have to be very high quality.
Method: Look in the collection trays to identify some of the organisms that live in Bennelong Pond
To support a variety of very sensitive bugs the water in Bennelong Pond would have to be very high quality.
Very sensitive
Sensitive
Tolerant
Very tolerant
√ - Water Boatman
√ - Diving Beetle
√ - Dragon Nymph
√ - Water Treader
√ - Damselfly Nymph
√ - Freshwater Slater
Water Quality
On our excursion we were given an instruction to try and find as many organisms as possible in a tray filled with the water of Bennelong Pond. We only found tolerant and very tolerant bugs, yet our whole class found different bugs than we did. some of them ranging from very sensitive to very tolerant, this means that the water in Bennelong Pond must be in a good condition if it supports the very sensitive bugs and they remain to live there.
The Comparison of Bennelong Pond and the Mangrove Wetland.
Test
Water Temp.
Result
6.2°c
Comparison
7°c - Bennelong Pond is lower
Water pH
7pH
7pH - There is no change
Turbidity
60NTU
15NTU - Bennelong Pond has clearer water
Salinity
250ppk
30.7ppk - Bennelong Pond was more salty