The four things an angler controls

Most of conservation is somebody else's job

Barriers, hatcheries, renovation, helicopters. None of that is yours.

Four things are, and they are all decided in the ten minutes around a fish.

1. Whether the water is too warm to be fishing it

This is the one anglers most often lack, and New Mexico publishes no guidance on it at all. The full 2026–2027 rules booklet contains no temperature threshold, no thermometer mention and no degree figure anywhere in fifty-two pages.

So the numbers below come from other states' wildlife agencies, and they are labeled as such.

Colorado has imposed voluntary closures and states it may impose mandatory ones above about 71°F.

Water is coldest between dawn and mid-morning. On a warm day, fish early and stop at midday.

2. How you handle the fish you are putting back

Steps 1 through 8 are the Department's own published Catch and Release Tips, from p. 21 of the rules booklet. They are the agency's words.

1. Land the fish quickly and don't play it to exhaustion.
2. Use a landing net whenever possible.
3. Keep the fish in the water.
4. Do not squeeze or grab any part of the fish. Wet your hands first if you must handle the fish.
5. Gently remove the hook.
6. If the hook is swallowed deeply, cut the leader.
7. Let a tired fish recover. Hold it by the tail in the water, supported from below, until it swims away.
8. Never toss or throw a fish back into the water.

The law does not require the following. We are asking you to. Pinch your barbs. Keep air exposure to a few seconds; if the fish is out of the water, hold your own breath, and when you want to breathe, so does the fish. Never lift a fish by the jaw or hold it vertically. Wet everything the fish touches, including the rock you are kneeling on.

The reason to do any of this is not that it would be wrong not to. It is that a fish released well is a fish somebody might catch again in a few years, bigger, after it has spawned a few times. Not certainly. Maybe. That is the whole deal.

3. Where you put your feet in the fall

Brown trout spawn in the fall in New Mexico, beginning around early October. Brook trout spawn later, from late October into December, over upwelling groundwater.

New Mexico protects none of it. No closed season, no redd protection, no gear restriction triggered by the spawn. The word "redd" does not appear once in the rules booklet.

Which means an angler in October can legally stand on a redd, and whether that happens is entirely a personal decision.

A redd looks like a patch of gravel cleaner and lighter than everything around it, usually at the tail of a pool or the head of a riffle, often with a slight pit at the upstream end and a raised mound behind it. They run from about a square foot to several yards. Once you have seen one you cannot stop seeing them.

Leaving fish on the beds alone is barely a sacrifice. The fish holding below the redds, feeding on drifting eggs, are the better fish and the better fishing anyway.

4. What you keep, and where

In a specific named set of conservation waters, the state has removed the bag limit on rainbow, brown and brook trout to protect natives. In those waters, keeping nonnative fish is the conservation-correct act.

Nothing requires it. The invitation is not an obligation, and in other Special Trout Waters the rule reverses entirely to catch-and-release including nonnatives.

Read the designation for the reach you are standing on. On some New Mexico rivers an angler passes through three legal regimes and two tackle rules in a short walk.