A crude map has been added to the OP. Could everyone please bold their actions and write the name of their species before posting the action? This makes stuff way easier for me.
Trapleon: Your species slowly but steadily expands their territory.
Unspent evolution points: 1
Ironside Krill: Your species has succesfully evolved the capability to create dense groups for a short time! Large creatures that feed on your species benefit from this, for they can easily devour more krill in one bite.
Clumping behaviour: 1/1
Unspent evolution points: 0
Inanti: This tactic is incredibly succesfull, and your species have claimed a large part of the western caverns as extra territory
Unspent evolution points: 1
Runt: The Runt keep reproducing, and slowly spread to the western part of the eastern reefs.
Unspent evolution points: 1
Quitions: Your tactic is not very beneficial, but doesn't hurt the Quitions either. Some of the Quitions have drifted into the white coral reefs, where they can easily eat unsuspecting creatures that have never seen them. Your territory expands into the southwestern reefs.
Unspent evolution points: 1
Carvicts:(I flipped a coin for this and the outcome was the toxin excretion) Your species has begun to use venom to kill the Mard growing on their spikes. This works really well, but the Carvicts have to eat more venomous creatures. This appears to be no problem, as there are plenty of venomous creatures surrounding the hydrothermal vents. The central hydrothermal vents become part of your territory.
Toxin Excretion On Spikes: 1/1
Unspent evolution points: 0
Garooda: Without the pressure from the depths and heat from the hydrothermal vents, it is hard for the Garooda to survive outside of the trench. They still tried, and managed to kill a great, cuttlefish-like creature with two heads and a row of sharp spikes on its back. Two of the smaller Garooda died due to internal bleeding, caused by the immense difference in pressure.
Unspent evolution points: 1
Seadain: You have succesfully evolved sharp, burrowing teeth. The larger creatures that arrived with the ironside krill are an easy source of food, but sometimes they tend to swim out of the trench, killing all of the Seadain because of the pressure difference.
Sharp Burrowing Teeth: 1/1
Unspent evolution points: 0
Baac-Dreh: A few creatures of your species have recently arrived in the Eden Trench, following the Ironside Krill. Your current territory are the Northern Caverns and Reefs.
Wingeds: Your species has been present in the Eden trench for hundreds of years, but their territory is limited to the Eastern and Southern Caverns, the only caverns with air-pockets large enough to support significant populations.