Fish Survey Data

This page provides anglers and other users access fish survey data collected by Iowa Department of Natural Resources (DNR) fisheries staff during electroshocking and netting surveys on lakes, rivers and streams. Information available includes survey summaries from individual lakes and rivers, fish species length across lakes, and fish length and weight data, which can downloaded. Additional data and summaries will be available in the future.

Fish survey data was removed from the DNR webpage in 2018, while a new data management system was acquired to capture and store fisheries data. The new data management system will be updated with new fish survey data faster than with the previous system.


Tip: Click the arrow in the lower right corner to view the Fish Survey Data tool in full-screen mode.