Data from: Fine-scale temperature associated genetic structure between inshore and offshore populations of sea scallop (Placopecten magellanicus) ...

• Main Authors: Lehnert, Sarah J., DiBacco, Claudio, Van Wyngaarden, Mallory, Jeffery, Nicholas W., Lowen, J. Ben, Sylvester, Emma V. A., Wringe, Brendan F., Stanley, Ryan R. E., Hamilton, Lorraine C., Bradbury, Ian R.
• Format: Dataset
• Language: English
• Published: Dryad 2018
• Subjects: Placopecten magellanicus; Environmental variation; marine population genetics; Single nucleotide polymorphisms; latitudinal genetic cline; Canada; Northwest Atlantic
• Online Access: https://dx.doi.org/10.5061/dryad.59g2911; https://datadryad.org/stash/dataset/doi:10.5061/dryad.59g2911

In the northwest Atlantic Ocean, sea scallop (Placopecten magellanicus) have been characterized by a latitudinal genetic cline with a breakpoint between northern and southern genetic clusters occurring at ~45°N along eastern Nova Scotia, Canada. Using 96 diagnostic single nucleotide polymorphisms (SNPs) capable of discriminating between northern and southern clusters, we examined fine-scale genetic structure of scallops among 27 sample locations, spanning the largest geographic range evaluated in this species to date (~37-51°N). Here, we confirmed previous observations of northern and southern groups, but we show that the boundary between northern and southern clusters is not a discrete latitudinal break. Instead, at latitudes near the previously described boundary, we found unexpected patterns of fine-scale genetic structure occurring between inshore and offshore sites. Scallops from offshore sites, including St. Pierre Bank and the eastern Scotian Shelf, clustered with southern stocks, whereas inshore ... : Scallop_all2012-2016_genopop-27popsGenepop file with all scallops (adults and juveniles)Scallop Environmental dataEnvironmental data for 27 scallop locations with latitude, longitude and corresponding cartesian coordinates. Data includes averaged annual maximum and minimum and seasonally averaged temperature and salinity from the sea surface (SST, SSS) and bottom (BT, BS) for all scallop sites between 2011 and 2015.Scallop_Environmental_Data.csv ...