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BLOCK LAB | WHITE SHARKS

Stanford University | Hopkins Marine Station

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The Block Lab track white sharks by employing cutting-edge telemetry and tagging techniques. Researchers in the lab attach electronic tags to the sharks, which provides real-time data on their movements, behaviors, and their diving behaviors. This allows for continuous monitoring as the sharks travel through the coastal waters. In parallel, the lab uses oceanographic instruments to gather information on environmental variables like temperature and ocean currents. Photo identification of sharks along with acoustic tagging provides the basis for mark recapture models that enable censusing the local population. Environmental DNA and genomics are being used to better understand the evolutionary relationships of the sharks and their presence in local waters.  By combining these datasets, the researchers can build a comprehensive picture of how white sharks interact with their environment, offering valuable insights into their migratory behavior and habitat use. 

Learn more about the research being done by the Block Lab here

Research Publications

Ferretti, F., Shea, B. D., Gambardella, C., Jenrette, J. F., Moro, S., Echwikhi, K., Schallert, R. J., Gallagher, A. J., Block, B. A., & Chapple, T. K. (2024). On the tracks of white sharks in the Mediterranean Sea. Frontiers in Marine Science, 11, 1425511. https://doi.org/10.3389/fmars.2024.1425511

McCauley, D. J., Andrzejaczek, S., Block, B. A., Cavanaugh, K. C., Cubaynes, H. C., Hazen, E. L., Hu, C., Kroodsma, D., Li, J., & Young, H. S. (2024). Improving ocean management using insights from space. Annual Review of Marine Science. https://doi.org/10.1146/annurev-marine-050823-120619

Pagniello, C. M. L. S., Castleton, M. R., Carlisle, A. B., et al. (2024). Novel CTD tag establishes shark fins as ocean observing platforms. Scientific Reports, 14, 13837. https://doi.org/10.1038/s41598-024-63543-5

Santos, B. S., Hazen, E. L., Welch, H., et al. (2024). Beyond boundaries: governance considerations for climate-driven habitat shifts of highly migratory marine species across jurisdictions. npj Ocean Sustainability, 3, 22. https://doi.org/10.1038/s44183-024-00059-5

Jewell, O. J. D., Chapple, T. K., Jorgensen, S. J., Kanive, P., Moxley, J. H., Tweedley, J. R., Anderson, S., Block, B. A., & Gleiss, A. C. (2024). Diverse habitats shape the movement ecology of a top marine predator, the white shark Carcharodon carcharias. Ecosphere, 15, e4825. https://doi.org/10.1002/ecs2.4825

Welch, H., Savoca, M. S., Brodie, S., et al. (2023). Impacts of marine heatwaves on top predator distributions are variable but predictable. Nature Communications, 14, 5188. https://doi.org/10.1038/s41467-023-40849-y

Kanive, P. E., Rotella, J. J., Chapple, T. K., Anderson, S. D., Hoyos-Padilla, M., Klimley, A. P., Galván-Magaña, F., Andrzejaczek, S., Block, B. A., & Jorgensen, S. J. (2023). Connectivity between white shark populations off Central California, USA and Guadalupe Island, Mexico. Frontiers in Marine Science, 10. https://doi.org/10.3389/fmars.2023.1210969

Andrzejaczek, S., Lucas, T. C. D., Goodman, M. C., Hussey, N. E., Armstrong, A. J., Carlisle, A., Coffey, D. M., Gleiss, A. C., Huveneers, C., Jacoby, D. M. P., Meekan, M. G., Mourier, J., Peel, L. R., Abrantes, K., Afonso, A. S., Ajemian, M. J., Anderson, B. N., Anderson, S. D., Araujo, G., Armstrong, A. O., et al. (2022). Diving into the vertical dimension of elasmobranch movement ecology. Science Advances, 8, eabo1754. https://www.science.org/doi/10.1126/sciadv.abo1754

Andrzejaczek, S., Chapple, T. K., Jorgensen, S. J., Anderson, S. D., Castleton, M., Kanive, P. E., White, T. D., & Block, B. A. (2022a). Multi-decadal high-resolution data reveal the cryptic vertical movement patterns of a large marine predator along the Californian coast. Frontiers in Marine Science, 9. https://doi.org/10.3389/fmars.2022.835576

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