A fish species can maintain a population in the long term only where the average sea surface temperature is below 16.0 °C.
Scientists surveyed the fish at a southern coastal site and a northern coastal site.
| Year | Average temperature at southern site in °C | Number of fish at southern site | Average temperature at northern site in °C | Number of fish at northern site |
|---|---|---|---|---|
| 2000 | 14.8 | 96 | 11.9 | 4 |
| 2025 | 17.2 | 18 | 14.3 | 71 |
Using the information in the table, explain how global warming may have affected this fish species. Predict what may happen to biodiversity at the southern site if warming continues.
84 exam-style questions on AQA GCSE Biology 7.3 Biodiversity and the effect of human interaction on ecosystems, covering 7.3.1 Biodiversity, 7.3.2 Waste management, 7.3.3 Land use, 7.3.4 Deforestation, 7.3.5 Global warming, and 7.3.6 Maintaining biodiversity. Each one has a worked solution and a mark scheme showing where the marks go.