OTN researchers examine the spatial and temporal distribution of Atlantic sturgeon in Minas Passage, N.S.


During the summers of 2010-2014, OTN researchers tagged 132 Atlantic sturgeon from endangered and threatened populations in the USA and Canada in Minas Passage using acoustic transmitters to examine spatial and seasonal distribution of animals in the area. Due to the slow swimming speeds of Atlantic sturgeon, researchers are concerned that the fish may have difficulty avoiding large turbines in fast water flow.

The tracking data collected over the four year period show that sturgeon were using the southern portion of the passage much more than the northern portion.

These findings are important in understanding sturgeon migration patterns and spatial overlap with hydrokinetic turbines, which are only planned for the northern part of Minas Passage.

The Ocean Tracking Network continues to support research to enable assessment and mitigation of possible effects of tidal turbine impacts on Atlantic sturgeon and other marine species.

Read more on the findings here: Atlantic Sturgeon Spatial and Temporal Distribution in Minas Passage, Nova Scotia, Canada, a Region of Future Tidal Energy Extraction



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