| Country | Hong Kong | Ecosystem | Southern China |
| Locality | Sharp Island | Depth | 6.4 m |
| Introduced | Year Intro. | ||
| Life Stage | adult | unsexed | |
| Quantitative | 2 | Unit | numbers/m^2 |
| Semi Quantitative | <100 | Unit | numbers/m^2 |
| Qualitative | rare | ||
| Year | 2020 - 2020 | Period | 2001-present |
| Date | 2020-06-01 00:00:00 - 2020-07-31 00:00:00 | Record Type | field sample |
| Record Type | field sample | ||
| Seasonal | yes | Method | random sampling |
| Remarks | Coordinates: 22°22.0576'N, 114°17.2252'E; wet season sampling. Using a van Veen grab sampler, five sediment samples were obtained at each site. Samples were then sieved, rinsed, and the collected amphioxus were indentified, measured, and counted in the laboratory. | ||