North Dakota Game and Fish Department Studies Aquatic Invertebrates for Biodiversity and Conservation
BISMARCK, N.D. – The North Dakota Game and Fish Department (NDGF) is actively surveying the state’s rivers, streams, lakes, reservoirs, and wetlands to analyze the often-overlooked aquatic invertebrate population. Conservation Biologist Aaron Larsen explains that aquatic invertebrates, which lack a backbone and thrive in aquatic environments, play a crucial role in maintaining ecosystem balance.
The primary aim of these surveys is twofold: to gather essential data on aquatic invertebrates for the State Wildlife Action Plan and to utilize these organisms as indicators of water quality. Larsen emphasizes the importance of understanding these species, some of which may require conservation efforts due to their declining numbers.
To collect data, biologists employ various methods, including setting out artificial substrates and using active collection techniques like D frame nets. During a recent survey at the Heart River near Mandan, biologists uncovered typical species such as dragonfly larvae, mayfly larvae, caddisflies, and stoneflies, reflecting the diverse aquatic life present in different habitats.
Biologists systematically sample various habitats, including riffles, pools, and areas with overhanging vegetation, ensuring a comprehensive representation of the organisms residing in these ecosystems. "Biodiversity across North Dakota’s landscape is essential for conservation efforts," noted Larsen, reinforcing the significant role that aquatic invertebrates play in the food chain.
This vital research will aid the NDGF’s incorporation of key aquatic invertebrate species into the State Wildlife Action Plan, set to be finalized in summer 2025, highlighting the department’s commitment to fostering biodiversity in North Dakota’s natural habitats.
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