Influence of culverts on small stream fish communities in Northwestern Ontario / by Eric K. Berglund.
Berglund, Eric K.
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"Stream crossings may alter fish habitat and fragment lotic environments, which could alter fish movement in stream reaches and lead to changes in fish community structure and population dynamics at the local and riverscape level. The potential for point source disturbance impacts by culverts may be analogous to confluences and the hierarchal spatial arrangement of tributary junctions, which are known locations of increased biodiversity. There is currently limited information on habitat fragmentation and the cumulative effects that culverts might have at the local and landscape level on fish communities in northwestern Ontario.