1. Environmental Impact on Coral Reefs – Effects of sedimentation and freshwater influx on the Great Barrier Reef, including coral damage and seawater chemistry changes.

2. Dredging and Fish Stocks – Consequences of maintenance dredging on marine life, including habitat disruption and population decline.

3. Aeration in Aquaculture – Importance of aeration in aquaculture systems, differences between intensive and extensive farming, and efficiency of different aeration methods.

4. Salmon Farming Challenges – Factors affecting salmon survival in hatcheries and net cages, including water quality control, feed types, and temperature-induced mortality.

5. Seagrass Beds and Microplastics – Role of seagrass in marine ecosystems, economic significance, impact of microplastics, and their accumulation in marine food chains.

6. Conservation and Marine Ecology – Role of the IWC moratorium in whale conservation, comparison of reproductive investment in sharks and whales, and benefits of mangrove replanting to fisheries.