Serina vs Kaimere: How well would the Spikerays, Calacarnas, and their close relatives and distant ancestors do?

Hello! For a crossover, I want to see how well Serina's fauna does in Tales of Kaimere!

The animals are harvested into the Known World of Kaimere by the Watcher of Serina, by the way.

These Snarks include:

-Bowel-Lord Gutsucker

-Kelpcrawler

-King Trawler

-Screaming Whistleworm

-Sandgrabber

-Weedy Calacarna

-Tyrant Calacarna

-Kraviathan

-Ogre Calacarna

-Swallowtail Spikeray

-Shaggy Spikeray

-Spiny Spikeray

-Creeping Spikeray

-Jumbo Flapray

-Shimmershiner

-Celestial Shimmershiner

-Urchin-Bellied Maceback