IEDA
Project Information
Collaborative Research: Genetic connectivity and biogeographic patterns of Antarctic benthic invertebrates
Start Date:
2011-08-15
End Date:
2015-07-31
Description/Abstract
The research will explore the genetics, diversity, and biogeography of Antarctic marine benthic invertebrates, seeking to overturn the widely accepted suggestion that benthic fauna do not constitute a large, panmictic population. The investigators will sample adults and larvae from undersampled regions of West Antarctica that, combined with existing samples, will provide significant coverage of the western hemisphere of the Southern Ocean. The objectives are: 1) To assess the degree of genetic connectivity (or isolation) of benthic invertebrate species in the Western Antarctic using high-resolution genetic markers. 2) To begin exploring planktonic larvae spatial and bathymetric distributions for benthic shelf invertebrates in the Bellinghausen, Amundsen and Ross Seas. 3) To continue to develop a Marine Antarctic Genetic Inventory (MAGI) that relates larval and adult forms via DNA barcoding. Broader impacts include traditional forms of training (postdocs, graduate studentships, undergraduate research experiences) and lectures to K-12 groups.
Personnel
Person Role
Halanych, Kenneth Investigator
Funding
Antarctic Organisms and Ecosystems Award # 1043745
AMD - DIF Record(s)
Deployment
Deployment Type
NBP1210 ship expedition
Data Management Plan
None in the Database
Datasets
Repository Title (link) Status
R2R Expedition Data exist
Publications
  1. Learman, D. R., Henson, M. W., Thrash, J. C., Temperton, B., Brannock, P. M., Santos, S. R., … Halanych, K. M. (2016). Biogeochemical and Microbial Variation across 5500 km of Antarctic Surface Sediment Implicates Organic Matter as a Driver of Benthic Community Structure. Frontiers in Microbiology, 7. (doi:10.3389/fmicb.2016.00284)
  2. Havird, J. C., Mitchell, R. T., Henry, R. P., & Santos, S. R. (2016). Salinity-induced changes in gene expression from anterior and posterior gills of Callinectes sapidus (Crustacea: Portunidae) with implications for crustacean ecological genomics. Comparative Biochemistry and Physiology Part D: Genomics and Proteomics, 19, 34–44. (doi:10.1016/j.cbd.2016.06.002)
  3. Santagata, S., Ade, V., Mahon, A. R., Wisocki, P. A., & Halanych, K. M. (2018). Compositional Differences in the Habitat-Forming Bryozoan Communities of the Antarctic Shelf. Frontiers in Ecology and Evolution, 6. (doi:10.3389/fevo.2018.00116)
  4. Galaska, M. P., Sands, C. J., Santos, S. R., Mahon, A. R., & Halanych, K. M. (2016). Geographic structure in the Southern Ocean circumpolar brittle starOphionotus victoriae(Ophiuridae) revealed from mtDNA and single-nucleotide polymorphism data. Ecology and Evolution, 7(2), 475–485. (doi:10.1002/ece3.2617)