Alaska's Cold Water Killer is the fourth episode of the seventh season of River Monsters.
Episode Description[]
For years fishermen have been vanishing in Alaska's remote & unforgiving wilderness - their deaths unseen, their bodies never found. For detective Jeremy Wade, a recent fatal incident sends him on a search for possible suspects.
Summary[]
The episode starts out with Jeremy Wade investigating a report of a boat found drifting in an Alaskan estuary with no sign of its crew. He decides to start his investigation in the river, since that is the territory he is most familiar with. The largest river predator, the King Salmon, has killed fishermen in rapids on rare instances, but, it couldn't possibly take a person off of a boat.
Jeremy then investigates possible oceanic predators. He looks into the possibility of the Salmon Shark, a relative of the Great White. However, swimming with them proves that they are not aggressive toward humans, leading him to draw a blank there too.
Apparently, this report is not an isolated instance, but rather, several people have gone missing in similar circumstances. Jeremy hears a report of a potential culprit, the Pacific Halibut.
Pacific Halibut are not particularly dangerous to people in the water, but are extremely aggressive when taken into boats. They can thrash hard enough to break bones. Jeremy then catches a live halibut and taking it onto his boat. While he manages to calm it down by rubbing its lateral line, the ferocity it displayed before this was enough to confirm to him that it was the culprit.
Animals Featured[]
Locations Featured[]
- Alaska
Trivia[]
- The first episode to feature the suspect caught in salt-water.
- The first episode to fully investigate the Salmon Shark. The Salmon Shark was dismissed early on in the second season episode, Alaskan Horror.