| Country | Hong Kong | Ecosystem | Southern China |
| Locality | Pak Lap Wan | Depth | 15 m |
| Introduced | Year Intro. | ||
| Life Stage | adult | unsexed | |
| Quantitative | 78 | Unit | numbers/m^2 |
| Semi Quantitative | <100 | Unit | numbers/m^2 |
| Qualitative | rare | ||
| Year | 2019 - 2020 | Period | 2001-present |
| Date | 2019-12-01 00:00:00 - 2020-01-31 00:00:00 | Record Type | field sample |
| Record Type | field sample | ||
| Seasonal | yes | Method | random sampling |
| Remarks | Coordinates: 22°20.6090'N, 114°21.84'E; dry 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. | ||