The vast majority of species in the ocean—by one estimate, more than 90 percent—have yet to be classified.

(...) scientists are discovering an average of 2,000 new marine species each year.

I've personally heard this type of gear gets lost frequently and malfunctions obviously render it unrecoverable, but maybe more funding will increase its reliability.

The study: Lunar rhythms and their carry-over effects may shape environmental sex determination in a coral reef fish

Published: 07 August 2024

Researchers have prototyped sensor-packed robot bugs that mimic biological digestive systems to meet energy needs, employ a Janus interface for a steady supply of nutrients and move on the water's surface like a water strider.

Called the Ocean of Things – and similar in essence to the multitude of sensor-packed smart devices that collect info across the Internet of Things – the project page states that sensor data would be uploaded to government-owned cloud storage for analysis, and that the OoT would support military missions while also being open to research bodies and commercial concerns.

The paper

The study analyses the water temperature of the Baltic Sea during the warm period 1993-2023 (May-August). The results show that the Lithuanian part of the Baltic Sea has experienced marine heatwaves almost every year. It is also observed that heatwaves in recent years last much longer than at the beginning of the study period.

The study