A horror movie featuring a mermaid with a blow hole

There’s scene where a grumpy old fisherman lures a creature close to his boat and then bludgeons it death. The creature looks like a woman but has a blowhole in the front of its throat.

Any idea when you saw this movie?

...in his dreams? LOL!!! That's a new one to me!!

I have seen this movie. Give me a minute.

EDIT: Hmm. Could have sworn it was Mermaid Down, but apparently not.

Mermaid Chronicles Part 1: She Creature (2001) ?

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Ulises 2018

I swear someone asked about this movie here before.

Thanks everyone