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Idaho Fish and Game

Releasing a largemouth bass into the Chain Lakes

New Fish and Game study underway on largemouth bass in Coeur d’Alene’s Chain Lakes

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The new study aims to improve Fish and Game’s understanding of largemouth bass in the Chain Lakes

Idaho Fish and Game has launched a new study to better understand largemouth bass populations in the eight Chain Lakes connected to Coeur d’Alene Lake. The project was developed through ongoing conversations and collaboration with local bass anglers and bass fishing groups.

Currently, Fish and Game manages each of the Chain Lakes as an independent fishery, with lake-specific harvest regulations for largemouth bass and other species. This study seeks to determine whether that long-standing management approach aligns with how bass actually use the system. 

“If bass movements among the lakes are occurring, this study will help us better understand how that could impact management options moving forward,” said Mike Thomas, Regional Fisheries Biologist for the Panhandle Region.

The study involves capturing largemouth bass, recording their length and weight, surgically implanting tracking transmitters, releasing the fish in the lake where they were caught and monitoring their movements over the next year. 

Measuring the length of a largemouth bass from the Chain Lakes
Largemouth bass from the Chain Lakes

“I hope that 15–20 years from now these fisheries are still producing amazing largemouth bass for everyone to enjoy, and this study will help us strive for that,” Thomas added.

Located at the southern end of Coeur d’Alene Lake along the Coeur d’Alene River near the town of Harrison, the Chain Lakes provide excellent fishing opportunities for a variety of warmwater species. The system is especially well-known for producing trophy-sized largemouth bass.

For more information or questions about the study, please contact the Panhandle Regional office.

You can also follow the Panhandle Region Facebook page to get regular news and updates.