What device serves as a framework for many water collection bottles allowing oceanographers to collect waterfront different depths?

The device commonly used for water collection in oceanography is called a "CTD rosette," which stands for Conductivity, Temperature, and Depth. This framework supports multiple water collection bottles, known as Niskin bottles, which can be triggered at various depths to sample water. The CTD rosette gathers data on the physical and chemical properties of seawater, assisting researchers in studying ocean conditions and ecosystems. It allows for precise and efficient collection of water samples from different depths in the ocean.