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4 June 2021 First Observation of Movement Rates and Repeated Migration in a Western Atlantic Torpedo (Tetronarce occidentalis) in the Northwest Atlantic Ocean
Keith J. Dunton, Kelsey Sparta, Michael G. Frisk, Christopher M. Martinez, Oliver N. Shipley
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Abstract

Tetronarce occidentalis (Western Atlantic Torpedo) is a demersal to semi-pelagic batoid, distributed broadly from Nova Scotia to Venezuela, for which data is limited throughout its range. A single individual was captured in the New York Bight and opportunistically tracked through nearshore waters for 2 years using passive acoustic telemetry. The individual showed rapid extensive movements (>250 km) and exhibited continuous use of coastal New York and New Jersey waters during late spring in 2012 and 2013. Observed movements were consistent with captures from fisheries-independent trawl surveys. These observations illustrate that the waters of the Mid-Atlantic Bight may offer important seasonal habitat for Atlantic torpedo rays, providing a preliminary assessment of local movement dynamics.

Keith J. Dunton, Kelsey Sparta, Michael G. Frisk, Christopher M. Martinez, and Oliver N. Shipley "First Observation of Movement Rates and Repeated Migration in a Western Atlantic Torpedo (Tetronarce occidentalis) in the Northwest Atlantic Ocean," Northeastern Naturalist 28(2), N7-N14, (4 June 2021). https://doi.org/10.1656/045.028.0210
Published: 4 June 2021
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