Glossary

Vermiculation

Answer in brief

Worm-like, wavy light markings on a darker background.

In practice

The marbled back of a brook trout is the classic example.

Where it comes up

The linked entry shows the term in use on a real identification problem, and how CatchVault handles that step.

Questions & answers

What is a vermiculation on a fish?

Worm-like, wavy light markings on a darker background. The marbled back of a brook trout is the classic example.

Sources for this entry

FishBase: Scientific database of fish species, names, ranges and morphology.

Practical guidance is original editorial writing. App details come from the developer’s published descriptions, checked 9 November 2026.

Continue this reading path

Trout identification Glossary CatchVault as a fish identifier

How the related websites connect

This reference is published alongside CatchVault. Species profiles live on the CatchVault website, and sister references cover fishing apps in general and fishing regulations.

Cite this entry

Best Fish Identifier App. “Vermiculation.” Content reviewed 9 November 2026.

https://bestfishidentifierapp.com/glossary/vermiculation/