Aetherial brings 41 pages for exploring aerospace collections, reading reviews, joining newsletters, and finding support in one clear digital experience.

The Journal · Species Guides

Species Guides

Field-by-field identification guides to every trout and salmonid you'll meet — range, spawning behavior, and the species that grow a kype.

Published Articles

Latest Species Guides

SPECIES GUIDE

Which Fish Grow a Kype? A Species-by-Species Guide

Not every salmonid grows a kype. A species-by-species guide to the hooked jaw in brown trout, brook char, bull trout, rainbows and Pacific salmon.

Read Article

The Language of the Chase

What Is a Kype? The Hooked Jaw That Defines a Wild Fish

A kype is the hooked lower jaw that male trout, char, and salmon develop during spawning season. Learn what it is, why it matters, and how it inspired Kype Fishing.