River Intelligence / Conservation

Upper Au Sable River Intelligence

Conservation

Practical stewardship decisions before, during, and after fishing.

Practical stewardship

Use each clue to make a responsible field decision.

Temperature

Measure temperature and respond to the reading

Warm water increases stress. Measure at the water you plan to fish, use current river-specific guidance, and choose another activity when stress risk is elevated.

Thermal refuges

Give concentrated fish space

Cold-water refuge areas can become critical survival zones during warm periods.

Spawning

Recognize spawning beds and give them space

Spawning beds, often called redds, appear as disturbed gravel. Give spawning fish room and walk around these areas.

Invasive species

Clean, drain, dry

Prevent moving organisms between rivers through boots, waders, nets, boats, and gear.

Materials

Use non-lead weight

Use effective alternatives and retrieve lost line, tippet, and indicators whenever practical.

Access

Respect property and crowding

Know boundaries, park responsibly, communicate with other anglers, and leave the site better than you found it.

Choose the responsible next step

Change the plan when the river, fish, or access needs more care.

  • Choose a different activity when water-temperature stress risk is elevated.
  • Stay out of water that is unsafe at the current level or speed.
  • Give fish space when they are concentrated in a cold-water refuge or spawning area.
  • Pause fishing when handling, crowding, or access conditions prevent responsible care.
  • Try hiking, scouting, casting practice, photography, or local conservation work.

Public access

Core stewardship content remains available without purchase.

River & Ridge may unlock deeper river-specific decision support with the Trout Confidence System, but safety, regulations, fish care, and stewardship information should not be withheld from anglers who need it.

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