On Friday 8th March two year 11 Biology classes from Keira High School spent a day exploring the mangroves at Minnamurra River.
They arrived via train and walked down to meet Jill and John at the boat ramp. The students were tasked with completing all their work on site, in order to submit their completed assessment task at the end of the day. Luckily they were all very studious and hard-working!
Marching soldier crabs
There was a very low tide at 1 pm which made it easy to explore the entire ecosystem. At the low tide, sea grasses were exposed and hundreds of soldier crabs were scuttling about - truly a sight to behold!
Students' fieldwork required students to identify and describe key plant and animal species of the mangroves and adjacent salt marsh ecosystems. Data was then collected using quadrats to compare and contrast the abundance of plant and animal species in the mangroves and salt marsh.
This data and analysis was used to formulate hypotheses to inspire further investigation of why do the mangroves occur within the intertidal zone. Hypotheses were tested using a belt transects along which biotic and abiotic factors were measured.
Students will need to go to the IEEC website to access background information, an electronic version of the workbook, excel spreadsheet for charting data, student work samples and an album of images about the mangroves.
Huge thank you and congratulations to Keira HS Year 11. We hope you enjoy the photos and should you have questions re your assessment task please post these on the blog and we will get back to you.
Well done to all the students from Keira High for completing their tasks and for surviving a hot and steamy day in the mangroves!