Abstract
Striped Bass, Morone saxatilis (Walbaum, 1792), is an anadromous fish species that supports fisheries throughout North America and is native to the North American Atlantic Coast. Due to long coastal migrations that span multiple jurisdictions, a detailed understanding of population genomics is required to untangle demographic patterns, understand local adaptation, and characterize population movements. This study used 1,256 single nucleotide polymorphism (SNP) loci to investigate genetic structure of 477 Striped Bass sampled from 15 locations spanning the North American Atlantic coast from the Gulf of St. Lawrence, Canada, to the Cape Fear River, United States. We found striking differences in neutral divergence among Canadian sites, which were isolated from each other and US populations, compared with US populations that were much less isolated. Our SNP dataset was able to assign 99% of Striped Bass back to six reporting groups, a 39% improvement over previous genetic markers. Using this method, we found (a) evidence of admixture within Saint John River, indicating that migrants from the United States and from Shubenacadie River occasionally spawn in the Saint John River; (b) Striped Bass collected in the Mira River, Cape Breton, Canada, were found to be of both Miramichi River and US origin; (c) juveniles in the newly restored Kennebec River population had small and nonsignificant differences from the Hudson River; and (d) tributaries within the Chesapeake Bay showed a mixture of homogeny and small differences among each other. This study introduces new hypotheses about the dynamic zoogeography of Striped Bass at its northern range and has important implications for the local and international management of this species.
| Original language | English |
|---|---|
| Pages (from-to) | 1468-1486 |
| Number of pages | 19 |
| Journal | Evolutionary Applications |
| Volume | 13 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jul 1 2020 |
Funding
We would like to thank Louis Bernatchez for the opportunity to contribute to this special issue (Box 1 ). We would like to acknowledge Paul Bentzen, who provided tissue samples from Miramichi River Striped Bass in Bras d'Or Lake. We would like to thank Dr. Michael Dadswell for spearheading an initial project to investigate Striped Bass in Cape Breton. We would also like to thank Scott Young and his late father Keith Young for their generous donation of time and knowledge in assisting us to capture and sample Striped Bass in the Saint John River, New Brunswick. We would like to thank the Striped Bass Research Team for coordinating sampling from the Shubenacadie River, as well as the local anglers who provided many of the samples from this river. We thank Beth Versak (Maryland Department of Natural Resources) for coordinating sampling from the Chesapeake Bay, as well as Andy Kahnle (NYSDEC Bureau of Marine Resources, Hudson River Fisheries Unit) and Matt Fisher (Delaware DNREC Division of Fish and Wildlife) for coordinating sampling from the Hudson River. For coordinating the collection of Kennebec River juveniles, we would like to thank Gail Wippelhauser and Jason Bartlett, from the Maine Department of Marine Resources. We would like to thank Jeremy McCargo, as well as the North Carolina Division of Marine Fisheries and Jeff Evans and Kevin Dockendorf (North Carolina Wildlife Resources Commission) for collection of Roanoke River and Cape Fear River samples. Striped Bass is a priority species of the United States Department of Agriculture (USDA) National Research Support Project 8 (NRSP‐8, ; USDA 0018889), and B.J.R. is the Co‐Coordinator of the . Génome Québec Innovation Centre provided sequencing services, and funding was provided by NSERC, the Canadian Rivers Institute, Canada Research Chair, New Brunswick Innovation Foundation, the Canada Foundation for Innovation, the Massachusetts Division of Marine Fisheries, the North Carolina Division of Marine Fisheries, and the Foundation for Food and Agriculture Research (New Innovator Award). National Animal Genome Project National Program for Genetic Improvement and Selective Breeding for the Hybrid Striped Bass Industry We would like to thank Louis Bernatchez for the opportunity to contribute to this special issue (Box 1). We would like to acknowledge Paul Bentzen, who provided tissue samples from Miramichi River Striped Bass in Bras d'Or Lake. We would like to thank Dr. Michael Dadswell for spearheading an initial project to investigate Striped Bass in Cape Breton. We would also like to thank Scott Young and his late father Keith Young for their generous donation of time and knowledge in assisting us to capture and sample Striped Bass in the Saint John River, New Brunswick. We would like to thank the Striped Bass Research Team for coordinating sampling from the Shubenacadie River, as well as the local anglers who provided many of the samples from this river. We thank Beth Versak (Maryland Department of Natural Resources) for coordinating sampling from the Chesapeake Bay, as well as Andy Kahnle (NYSDEC Bureau of Marine Resources, Hudson River Fisheries Unit) and Matt Fisher (Delaware DNREC Division of Fish and Wildlife) for coordinating sampling from the Hudson River. For coordinating the collection of Kennebec River juveniles, we would like to thank Gail Wippelhauser and Jason Bartlett, from the Maine Department of Marine Resources. We would like to thank Jeremy McCargo, as well as the North Carolina Division of Marine Fisheries and Jeff Evans and Kevin Dockendorf (North Carolina Wildlife Resources Commission) for collection of Roanoke River and Cape Fear River samples. Striped Bass is a priority species of the United States Department of Agriculture (USDA) National Research Support Project 8 (NRSP-8, National Animal Genome Project; USDA 0018889), and B.J.R. is the Co-Coordinator of the National Program for Genetic Improvement and Selective Breeding for the Hybrid Striped Bass Industry. G?nome Qu?bec Innovation Centre provided sequencing services, and funding was provided by NSERC, the Canadian Rivers Institute, Canada Research Chair, New Brunswick Innovation Foundation, the Canada Foundation for Innovation, the Massachusetts Division of Marine Fisheries, the North Carolina Division of Marine Fisheries, and the Foundation for Food and Agriculture Research (New Innovator Award).
| Funders | Funder number |
|---|---|
| Massachusetts Division of Marine Fisheries | |
| North Carolina Wildlife Resources Commission | |
| USDA 0018889, NRSP-8 | |
| Canada Foundation for Innovation | |
Keywords
- aquatic ecology
- candidate gene identification
- ecology
- population genetics
- population genomics
