https://www.persee.fr/doc/befeo_0336-1519_1938_num_38_1_4722

This link is in French but we can read that Indonesians used a blowgun for fishing.
With a blowgun, hook and float are launched. Number 5.
When the fish bites, the hook separates from the float. Number 4.
In page 215 : the text
And in page 254.c : 2 drawings, number 4 and 5.

The text speaks of hollow wood without specifying the nature of the wood.
According to the text, the blowgun is bamboo or copper.

Yes, modern version with a reel.

In the texte, it's a gaffe (a hook).
With the same technic, blowgun and gaffe, they hunted also mule like the video.

I hope I'm clear.