Solved A type of fish lay their eggs in freshwater streams.

The US has spent more than $2B on a plan to save salmon. The fish are vanishing anyway. - OPB

Spawning Fish and Fish Eggs in the Aquarium - A Guide for Beginners

Freshwater Biodiversity

When do fish lay eggs? - Quora

Best fish to stock in your dam - Water Quality Solutions

What type of fish lay egg-shaped objects in water? How do these fish obtain food when there are no seeds available in the water? - Quora

Frontiers Living on the edge: Reservoirs facilitate enhanced interactions among generalist and rheophilic fish species in tributaries

The Weird & Wonderful Whiptail Catfish

Spawn (biology) - Wikipedia

Sustainable freshwater fishkeeping: Insights from aquarist Rachel O'Leary

Animal Magnetism: How Salmon Find Their Way Back Home : The Salt : NPR