2023. Art and a brief explanation on what these things are.
Salmonlings, in my setting, are descendents of groups of salmon that got infected with the Liquid Human Crystals back in the day. They're related to the normal Salmonid, and stick by them for protection, but have notable differences related to being more humanoid (biological, less suicidal tactics than the normal salmonid, etc).
Their main benefit to Salmon Society is having opposable thumbs (they make great engineers!) and being good for doing trade with the Octarians. In fact, their main weapon of choice is the Octo Shot.
They don't like to get into fights like normal Salmonid, but when they do engage in battle, they tend to do stealth and trickery tactics. They've taken to wearing discarded Slop Suits and acting like coworkers, and then attacking cephs while their guard's down. This has resulted in rumours that the spawning grounds are haunted.
Since they can more easily speak ceph language, they also take to the radio to send out "This way" or "Help" calls to lure workers to dangerous areas.
My main two Salmonling OCs are Skye, an amnesiac who ended up in Splatsville and works in a hole-in-the-wall type restaurant, and Brine, a "ghost" attacker who ends up getting captured by Grizz Co.