What is one of the main uses of acoustic telemetry in oceanography?

Acoustic telemetry plays a crucial role in studying marine animal movements, making this the main use of the technology in oceanography. By utilizing sound waves to transmit data, researchers can track the position and behavior of various marine species over time. This method allows for the collection of real-time information about migration patterns, habitat preferences, and interactions among species, which are essential for understanding ecosystems and informing conservation efforts.

The technology involves the attachment of small acoustic tags to marine animals. These tags emit sound signals that can be detected by underwater receivers placed at strategic locations in the ocean. This process provides researchers with valuable insights into how animals navigate through their environments, respond to changes in their habitats, and utilize different parts of the ocean for feeding, breeding, and shelter.

In contrast, other options such as measuring ocean temperature, recording ocean salinity levels, or storing data for future research involve different techniques or technologies not specific to acoustic telemetry. Measuring temperature and salinity typically relies on sensors and instruments designed for physical oceanography rather than tracking animal movements. Storing data is a crucial aspect of research, but it does not relate directly to the primary function of acoustic telemetry.