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Use of acoustic telemetry to identify spawning river and spawning migration patterns of American Shad in the Albemarle Sound, North Carolina
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2021
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Source: North Am. J. Fish. Manage., 41: 242-251.
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Journal Title:North American Journal of Fisheries Management
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Description:American Shad Alosa sapidissima is an economically, culturally, and ecologically important anadromous species, which undertakes a significant spawning migration, swimming from the ocean into areas far upstream in coastal rivers to reproduce. The species has a large range in the western Atlantic, occurring from Nova Scotia to Florida. However, because American Shad generally return to natal rivers to spawn, each major river likely has its own spawning stock. Fish entering the Albemarle Sound, North Carolina, to spawn primarily ascend one of two rivers at the far western end of the estuary; the Roanoke River or the Chowan River. Determining the current primary spawning river for American shad in the Albemarle Sound would help inform research efforts and resource management decisions to improve stocks. American Shad were captured in Albemarle Sound, tagged with sonic transmitters, and tracked using an array of acoustic receivers. Of 62 fish which made detectable migrations during six study years, 55 ascended the Chowan River, while only 5 ascended the Roanoke River, and 2 entered other rivers. These telemetry results suggest the Chowan River and its tributaries are the major spawning rivers for American Shad in Albemarle Sound.
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Source:North Am. J. Fish. Manage., 41: 242-251.
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Rights Information:Accepted Manuscript
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