Are thrown tridents considered ammunition or no?

We're playing Tomb of Annihilation (my first time, no spoilers please) so we're keeping careful track of things usually hand-waved: rations, water, ammunition.  Our barbarian threw a trident at maximum range (60') and, after the battle, the question was raised as to whether a trident used in such fashion is considered Ammunition and therefore subject to the "you can spend 1 minute to recover half the ammunition" rule.  What is your position, and is that based on either RAW or RAI (please indicate which)?

Thanks so much!

Weapons and ammunition are separate things in D&D rules. A thrown weapon isn't ammunition.

There aren't any specific rules about the recovery of thrown weapons. In my experience the assumption is always that they can be recovered unless something exceptional has happened that prevents the weapon from being reached.

Pretty much that, unless you like miss on the edge of a cliff, are in a chase so you can't pick it up etc if can be recovered. How picky the table is with you needing to say, I go and collect my thrown daggers or whatever seems to vary.