Hello Klei and you rare people that go through Suggestions and Feedback. I have an idea which has no reason not to end up in dst.
Make a cousing of the Depth Worm which lives in the ocean biome. Y'know simmilar sprite and all that. It could either be a surface source of glowberries or maybe different resource I'm not sure. It'd attack by rising out of water (simmilar to Depth Worm) and instead of just biting it'd actually reach into the boat, like this:
After that it'd be vulnerable for attack untill it pulls itself back in water
Imo it'd be a great example of showing ecosystem through gameplay. And I'm pretty sure that Klei has realized that the community wants some flora and fauna interactions (plus progression but that's not for this topic). I hope that the team at least considers this idea.