An investigative feature in an environmental science review examines modern maritime ecology in the Macaronesian archipelago:
In the deep maritime corridors separating Tenerife and Gran Canaria, commercial maritime traffic has long posed an acute threat to resident cetacean populations, particularly deep-diving sperm whales. In response to recurring collisions, oceanographers and software engineers have deployed an innovative passive acoustic monitoring array comprising autonomous hydrophone buoys equipped with machine-learning algorithms. These submerged sensors capture ambient soundscapes in real time, filtering out propeller cavitation to isolate the distinct echolocation clicks of cetaceans up to twenty kilometers away. When whales are detected near shipping lanes, the system automatically transmits telemetry coordinates to maritime traffic control centers, which promptly issue speed reduction advisories to approaching cargo vessels and high-speed ferries. Preliminary evaluations indicate a seventy percent decrease in close-quarter encounters during the network's pilot semester. Beyond immediate collision mitigation, the accumulated audio data provides invaluable empirical records regarding seasonal migration dynamics and anthropogenic noise pollution, establishing a replicable framework for marine conservation in congested global waterways.
Which of the following statements best expresses the primary main idea of the journalistic report?
- AAutonomous hydrophone buoys filter propeller cavitation to detect whale clicks up to twenty kilometers away.
- An automated passive acoustic network mitigates vessel collisions with whales while offering a broader model for marine conservation.Answer
- CThe mandatory rerouting of all commercial shipping lanes has permanently eliminated cetacean mortality across the archipelago.
- DCommercial shipping companies have actively resisted speed reduction advisories due to economic losses.