You know between the pressure tolerances of dolphins and those delicate "whisker" drones that stood in for sturdier but narratively uninteresting towed sonar arrays, the seaQuest probably had a shallower operating depth limit than modern military subs
While SeaQuest DSV is “what if the Enterprise-D was a submarine”, the 2000s Battlestar Galactica is “what if Star Trek: TNG was based on an aircraft carrier”