NMDGF Fisheries Management 

The Fisheries Management Division is responsible for the management of New Mexico’s aquatic resources.  We have a very dedicated staff that is in the field year round managing both sport and native fish species.  Their efforts improve fishing and ensure the long term sustainability of several aquatic species. Below are a few ongoing management and research projects conducted by the Fisheries Management Division.

Fisheries Management Plan

2015 Statewide Fisheries Management Plan - New Mexico Department of Game and Fish

Approved by the New Mexico State Game Commission on June 17, 2022.

pdf
- NM-Fisheries-Management-Plan-2016-SCG-Approved

Eagle Nest Lake Fisheries Management

Click gallery below to see larger images with a description.

Rainbow trout are a highly valued sportfish in New Mexico. Based on recent surveys, 67% of anglers feel rainbow trout are the most important fish in Eagle Nest Lake. Therefore, biologists, anglers, and the local community are very concerned for the future of the rainbow trout fishery following the illegal introduction of predatory northern pike to Eagle Nest Lake in the mid-2000’s. The New Mexico Department of Game and Fish (NMDGF) has conducted a research project with the goal of learning effective strategies for continuing to manage rainbow trout in Eagle Nest Lake in spite of the unlawfully introduced northern pike. Department biologists have found that fingerling (about 3 inches long) rainbow trout no longer survive to a catchable (about 9 inches long) size at Eagle Nest Lake. As a result, fisheries staff have changed the stocking strategy from fingerlings to catchable sized rainbow trout and plan to stock most fish in the spring. NMDGF hosted a public meeting on April 13, 2022, to discuss Eagle Nest Lake fisheries history, management and research. Below is a link to this presentation.

Tiger Muskie Management

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New Mexico Game and Fish biologists setting gill nets during a tiger muskie population survey.
New Mexico Game and Fish biologist measuring a tiger muskie during a population survey.
Large tiger muskie captured during a population survey at Quemado Lake - (New Mexico Game and Fish).
Weighing tiger muskie during a population survey - (New Mexico Game and Fish).
Tubing a tiger muskie to extract stomach contents for a diet study - (New Mexico Game and Fish).

The New Mexico Department of Game and Fish uses tiger muskies to control undesirable fish species in Bluewater and Quemado reservoirs. Tiger muskies are extremely piscivorous (fish eating) and have significantly decreased populations of unwanted goldfish and white suckers in each reservoir. Tiger muskies also have provided a unique and popular fishing opportunity. Department fisheries biologists conduct tiger muskie surveys twice a year to monitor population levels, fish condition, diet, and stocking success to ensure successful long-term management of tiger muskies in New Mexico. Click here for more about fishing for tiger muskies.

Fish Habitat Improvement Projects

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Carlos Vigil with big rainbow caught in improved habitat reach
Large boulder deflector protecting unstable bank
Inspecting a new gravel point bar
Gradient control structure
One of several new parking access areas
Historic channel reopened to increase habitat
Improved channel sinuosity and function
Contractor constructing gravel point bar and low flow channel
Habitat rocks and new flood plain area ready for cottonwood tree planting
Large boulder deflector structure and habitat rocks
Contractor channel shaping
Reconstructed riffle

River Habitat: Rio Chama at Abiquiu Dam
As part of the Department’s effort to improve fish habitat throughout the state the Rio Chama project was completed spring 2020. The Department worked with multiple partners to complete the project including the United States Army Corps of Engineers, Bureau of Land Management, New Mexico State Land Office, Santa Fe National Forest, Trout Unlimited, and the National Fish and Wildlife Foundation. The project improved fish habitat and riparian health along two miles of the Rio Chama directly downstream of Abiquiu Dam. The project focused on improvements for resident trout species such as brown trout and rainbow trout and native fish species such as Rio Grande chub and Rio Grande sucker. Several techniques were used including building a low flow channel to increase habitat connectivity and winter habitat, installing several large boulder structures to increase habitat complexity and protect vulnerable stream banks, creating new flood plain areas and planting with native riparian vegetation, and adding several parking areas and road improvements to increase angler and hunter access. The project was designed by Riverbend Engineering LLC and built by WCA Construction LLC.

Click gallery below to see larger images with a description.

Bill Evans Lake habitat structure map.jpg
Barge deploying canopies.
BASS club volunteers building pyramids.
Frey and Ryder making brush pile.
Green loading tree ring on Mako.
Log pile on shore.
Mako hauling tree rings.
Matt and Eric with log on whaler.
Three pisces pyramids loaded on barge.
Adam and Dan building fortresses.
Building catfish boxes.
Cinderblocks being delivered.
Marc cutting opening for catfish boxes.
Securing weights to fortress.

Reservoir Habitat Project: Bill Evans
The Department has begun to improve fish habitat in small reservoirs. The purpose of these projects is to improve the food web and recruitment of crucial forage and numerous sportfish species. The first habitat project improvement project took place on Bill Evans Lake, in the Southwest Region of the state, 18 miles west of Silver City. Department biologists worked with local volunteer anglers to improve fish habitat at Bill Evans Lake. This project involved building or purchasing habitat for numerous fish species and installing them in key areas of the lake. Logs, floating shade cover, large juniper tree branches and various structures made out of wood pallets were sunk in Bill Evans Lake in order to provide needed cover and spawning areas for both crucial forage and sportfish species. Largemouth bass, channel catfish, rainbow trout and bluegill will have more success at spawning and growing to adulthood, leading to higher abundances of larger fish. Locations of these habitat structures are shown on the map in the photo gallery. Honey Hole Canopy, Pisces Pyramid and Sunken Log structures are great places to fish for adult species using them as cover. Other habitat improvement projects will take place in reservoirs throughout the state.

Monitoring Fish Populations

Click gallery below to see larger images with a description.

New Mexico Game and Fish biologists conducting a electrofishing survey with the Carson National Forest on the Red River.
Evening bass survey on Ute Lake - (New Mexico Game and Fish).
Huge brown trout captured during a population survey at Navajo Reservoir - (New Mexico Game and Fish).
Large walleye captured during a population survey at Santa Rosa Lake - (New Mexico Game and Fish).
New Mexico Game and Fish conducting a population survey with the Carson National Forest during a snow storm.
Population survey being conducted on Eagle Nest Lake - (New Mexico Game and Fish).
Walleye scale projected to age fish similar to tree rings - (New Mexico Game and Fish).
New Mexico Game and Fish biologist measuring a large channel catfish.
Nice sized bluegill captured during a population survey - (New Mexico Game and Fish).
Large headwater chub captured during a population survey in the Gila watershed - (New Mexico Game and Fish).
Setting a gill net to survey a timberline lake in the Pecos Wilderness - (New Mexico Game and Fish).
Nice sized largemouth bass captured during a population survey at Bill Evans Lake - (New Mexico Game and Fish).
New Mexico Game and Fish biologists scanning a walleye for an identification tag during a mark-recapture study.
New Mexico Game and Fish biologists electrofishing a small mountain stream for Rio Grande cutthroat trout.
New Mexico Game and Fish department staff conducting a fall gill net survey on the Maxwell Lakes.
Adult Rio Grande chub captured during a population survey on the Pecos River - (New Mexico Game and Fish).
Ear bone called a otolith used to age walleye - (New Mexico Game and Fish).
New Mexico Game and Fish department staff conducting a population survey on the Gila River.
New Mexico Game and Fish biologist reading water quality measurements on a mountain stream.

Department staff spend a significant portion of their time monitoring fish populations throughout New Mexico. Survey methods, times of year and locations vary highly and can include:

● night time electrofishing for largemouth bass in the spring
● dragging a seine in the lower Pecos River for small-bodied fishes
● floating down the San Juan River with an electrofishing raft for Colorado pikeminnow.

Biologists collect several pieces of information such as population numbers, species composition, fish size distribution, fish condition, and age. Monitoring populations allows biologists to evaluate fishing regulations, stocking strategies, recovery efforts, and attaining management objectives. Population monitoring is a corner stone to fisheries management.

Angler Surveys

Angler with nice sized smallmouth bass from Conchas Lake - (New Mexico Game and Fish).

Angler with nice sized smallmouth bass from Conchas Lake

Monitoring New Mexico anglers is just as important as monitoring fish populations. This information allows the Department to understand where anglers are fishing, how many fish they are catching/harvesting, how satisfied they are with their fishing experience, and what fish species they prefer to catch. Biologists use several methods to collect angler data including: telephone surveys, internet surveys, and personal interviews with anglers while fishing. Angler surveys also help identify any potential issues and trends and ultimately help manage the fish populations to meet angler needs.

Wild Fish Egg Collection-“Spawning”

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New Mexico Game and Fish department staff collecting eggs from Rio Grande cutthroat trout.
New Mexico Game and Fish department staff spawning kokanee salmon on the trap at Heron Reservoir.
Thousands of kokanee salmon in trap ready to be spawned - (New Mexico Game and Fish).
New Mexico Game and Fish department staff gently squeezing eggs from a female kokanee salmon.
New Mexico Game and Fish biologist measuring the volume of eggs collected from a female Rio Grande cutthroat trout.
New Mexico Game and Fish biologist stirs in bentonite mud to prevents walleye eggs from sticking together.
Walleye eggs ready to hatch - (New Mexico Game and Fish).
Kokanee salmon eggs freshly fertilized at Heron Reservoir - (New Mexico Game and Fish).
Walleye captured in gill net to collect eggs at Conchas Lake - (New Mexico Game and Fish).
New Mexico Game and Fish department staff carefully placing walleye eggs into hardening box.
New Mexico Game and Fish department staff gently squeezing eggs from a large female walleye.

Department staff spawns wild fish from various populations throughout New Mexico annually. Some fish species such as walleye and kokanee salmon have very low reproductive success in the state. So, sustaining their populations and angling opportunity depends on egg collection and restocking with young fish. Spawns are conducted on other fish species such as Rio Grande cutthroat trout to capture genetics from relic populations into hatchery broodstock to be used for native fish restoration efforts. The spawning process is similar for all species which includes:

● collecting adult male and female fish during the appropriate spawning season (commonly spring and fall)
● gently squeezing eggs from the female and fertilizing with milt from the male
● hatching the fertilized eggs at the hatchery
● raising the fish to the desired size
● restocking the fish into the wild.

Catfish Stocking Evaluation by Mark and Recapture

Channel catfish being marked by freeze branding - (New Mexico Game and Fish).
Channel catfish immediately after freeze branding - (New Mexico Game and Fish).
New Mexico Game and Fish - Fisheries Management Division crew fin clipping and freeze branding catfish.
New Mexico Game and Fish biologist setting baited hoop nets to recapture marked channel catfish.
Channel catfish several months after freeze branding - (New Mexico Game and Fish).
ANew Mexico Game and Fish biologist using the liquid nitrogen apparatus to freeze brand catfish.
Series of baited hoop nets used to recaptured marked channel catfish - (New Mexico Game and Fish).

The Rock Lake State Fishery Hatchery successfully raises thousands of channel catfish annually. Most of the catfish are stocked as juveniles into several lakes statewide. Stocking success can vary highly and Department biologists have initiated a long-term stocking evaluation to determine appropriate stocking rates and sizes. Biologists have developed a marking method that involves freeze-branding juvenile channel catfish. The brand will allow biologists to determine stocking success and growth of a particular year class after the fish are recaptured during population monitoring surveys. The goal of this study is to increase catfish fishing opportunities for New Mexico’s anglers.

San Juan River Management

Overlook view of the San Juan River tailwater fishery - (New Mexico Game and Fish).
New Mexico Game and Fish biologists trudging through the mud to conduct a seining survey.
Razorback sucker captured during an electrofishing survey in the San Juan - (New Mexico Game and Fish).
Adult roundtail chub capture during an electrofishing survey on the lower San Juan River - (New Mexico Game and Fish).
Colorado pikeminnow captured during an electrofishing survey in the San Juan - (New Mexico Game and Fish).

The San Juan River is a unique and vital resource to New Mexico. The tailwater section below Navajo Dam provides world-class trout fishing that contributes millions of dollars to the state’s economy each year. The lower reaches provide habitat for federally listed fish species such as bonytail, razorback sucker, and the Colorado pikeminnow. Conservation of both these fisheries is paramount and Department staff spend a considerable amount of time monitoring, stocking, and enhancing habitat to ensuring the long-term persistence of this resource.

Colorado River Endangered Fish Reports (link)

Navajo Reservoir Operations Enviromental Impact Statement (link)

Golden Algae Monitoring and Mitigation

Floating island planted with aquatic plants to filter water and reduce nutrients to control golden algae.
Fish kill caused by golden algae bloom along the lower Pecos River near Carlsbad, NM - (New Mexico Game and Fish).
Golden algae bloom in southeast NM, notice the dark “tea stained” color change.
During a golden algae bloom water becomes dark tea-stained color.

Golden algae is a single cell microscopic organism that thrives in salty high nutrient water. It typically blooms during the winter months and produces fish toxins that can cause massive fish kills. Golden algae was first detected in New Mexico in 1988 along the lower Pecos River. Since that time it has caused several fish kills near Roswell and Carlsbad. The Department has worked cooperatively with New Mexico BASS Nation and Roswell schools on a golden algae mitigation research project. The project is investigating the use of aquatic plants to improve water quality so golden algae can be controlled. Biologists also monitor lakes and ponds for golden algae to determine if a water is suitable for fish stocking.

Conservation Agreements and Recovery Plans

 

Sport Fish and Wildlife Restoration helps support Fisheres Management at New Mexico Game & FishSport Fish Restoration Act
A 10-percent federal excise tax on your purchase of fishing equipment and motor boat fuel helps states individually promote sport fisheries. This includes acquiring easements or leases for public fishing, funding hatchery and stocking programs, supporting aquatic education programs, and improving boating facilities for anglers.