When the LD SB80 episode mentioned Matt and Kimolu were infected on an away mission, it reignited some thoughts/questions about how the lives of Cetacean officers in an era of Trek where whales are beginning to become more common as crew members.

Here's the discussion that I think can be had within current canon: I can't help but notice what seems to be a difference in the quality of life between Gillian on Voyager-A and Matt and Kimolu on the Cerritos.

Sure, Matt and Kimolu don't have as flashy or futuristic-looking of an aquarium, but in addition to having each other, the pool-like design of their accommodations allows them easy interaction (a.k.a parties) with the crew. I feel like there's much more opportunity for them to have a fulfilling social life on the Cerritos.

In comparison, Gillian feels very enclosed and isolated from the rest of Voyager; there's always glass between here and the crew (as humpbacks sometimes need to surface, I image there's probably an area with some air in the aquarium), and people are shown having to wear full suits to be in the same space as her. In addition, there's no other whale with her. In fact, we don't really see a staff of officers in Cetacean ops - just Rok. It seems like a very lonely existence.

Of course, a lot of these seeming inequalities can be attributed to circumstance rather than neglect on Starfleet's part. For one, Gillian, canonically a humpback, is more than triple the size of Matt or Kimolu, belugas, so it's much harder to design any space at all for her on a starship, let alone one that gives her the freedom to safely interact with crew.

As for being the only humpback on Voyager, this is probably because there just aren't that many - her species was only repopulated less than a century ago during the whale probe incident.

Now, here's some more difficult-to-answer questions:

• How often do whales go on away missions?
• What precautions do they have to take on away missions?
• Do these missions come up organically, or is there some sort of quota?
• How does their shore leave work?
• What is the Academy like for whales? Is there an aquatic division? Do they sometimes have co-ed events with land-based cadets?
• Honestly, what is the life of a civilian Federation whale like? Do they have mobility accommodations should they e.g want to go see Vulcan or something? Do they live like 21st century whales, or are there LCARS panels in the ocean?

These questions definitely can't be answered with current lore, but I guess we can imagine and/or extrapolate from how Starfleet has accommodated other non-humanoid officers.