Science in Practice Students Investigate Esperance’s Marine Ecosystems
Our Year 11/12 Science in Practice students recently took their learning beyond the classroom and into the field as part of their “Investigating a Local Ecosystem” assessment task.
The excursion provided students with an opportunity to apply the scientific sampling techniques they have been learning throughout the term while investigating the biodiversity of Esperance’s unique coastal environment.
Students visited local jetties around Esperance where they worked in small groups to collect both biotic and abiotic data. Using a range of sampling methods, students identified and classified marine organisms, investigated feeding relationships, and measured environmental factors that influence species distribution within the ecosystem.
A highlight of the day was the deployment of a Baited Remote Underwater Video System (BRUVS) at the Esperance Jetty. The BRUVS allowed students to capture underwater footage of marine life without disturbing the environment. Students were excited to review the footage and identify the variety of fish and other organisms recorded, providing valuable evidence of local marine biodiversity.
The data collected during the excursion will be used to support each student’s investigation, where they will analyse patterns in species distribution and environmental conditions. Students will present their findings through a scientific report and group poster presentation.
Experiences such as these allow students to develop practical scientific skills while gaining a deeper appreciation of the ecosystems that make Esperance such a special place to live. It was fantastic to see students working collaboratively, applying scientific inquiry skills, and engaging with real-world environmental issues.
Mrs van den Heever
Science Teacher
Woody Lake Field Trips
The Year 11 ATAR Biology class spent a full day exploring the Woody Lake wetland system, gaining hands‑on experience with real environmental science fieldwork. Students began with bird observations, spotting large numbers of Eurasian coots, pelicans, and black swans, all key indicators of wetland health.
Walking the Kepwari Trail between lakes, the group followed strict dieback‑prevention protocols, thoroughly cleaning shoes and equipment with ethanol before entering sensitive areas. Along the trail, students practiced vegetation sampling using transects and quadrats, while identifying introduced and invasive species as well as different stages of post‑fire recovery across the landscape.
In the afternoon, students geared up in waders to investigate water quality. They collected samples to identify macroinvertebrates, measure turbidity, pH, nitrogen, and ammonia levels, to assess the overall health of the wetland ecosystem.
This excursion was a wonderful opportunity for students to enjoy nature and apply everything they have learnt this semester about the importance of biodiversity and conservation. We are very proud of our students for the respect and interest they show in our local ecosystems and their passion for supporting its health long term.
Ms Defrenne
Science Teacher
