"Whitefish and Lampreys" is the 27th chapter of Junior Officers.
The Octonauts visit the Mackenzie River to save a school of lake whitefish from parasitic sea lampreys.
This is Sarabi's first mission.
Tropes:
- An Ice Person: Deborah mentions an Intergalactic Imogen character who has ice powers.
- Gray-and-Grey Morality: Sarabi, who is on the heroic side, considers killing one of the lampreys, but decides against it because their decision to feed on the nearby fish, while harmful, is out of necessity for survival and not malice.
