aquatic life survey; underwater biological observation
Refers to systematic observation or survey of aquatic organisms, often in scientific, educational, or environmental contexts.
We conducted an aquatic life survey as part of the environmental study.
The children enjoyed observing underwater life in the river.
Broader term for underwater observation, not limited to living organisms.
General biological survey, not necessarily underwater.
Compound of 水中 (underwater), 生物 (living things), and 観察 (observation).