| Citation | Malick, M.J., Hunsicker, M., Haltuch, M.A., Parker-Stetter, S.L., Marshall, K.N., Pohl, J., Berger, A.M., Siedlecki, S., Gauthier, S., and Hermann, A. 2024. Spatially-varying effects of the California Undercurrent on Pacific hake distribution. Canadian Journal of Fisheries and Aquatic Sciences 81(2): 154¿165. doi:10.1139/cjfas-2023-0202. (10.1139/cjfas-2023-0202) |
| Title | Spatially varying effects of the California Undercurrent on Pacific hake distribution |
| Publication Year | 2024 |
| Volume | 81 |
| Pages | 154-165 |
| Keywords | transport, nonstationary, pacific hake, california undercurrent, ocean currents |
| Abstract | In the California Current Ecosystem, the California Undercurrent (CU) is the predominate subsurface current that transports nutrient rich water from southern California poleward. The spatial complexity provided by the CU has been hypothesized to impact the distribution of Pacific hake either via aggregating prey resources or assisting northward migration. In this study, we used a large data set of spatially explicit in situ observations of Pacific hake and the CU (36.5¿48.3°N) to estimate relationships between northward undercurrent velocity and hake distribution and determine if these relationships vary across space or life-history stage. We found that both hake occurrence and density had strong spatially complex relationships with the CU. In areas north of 44°N (central Oregon), the CU effect tended to be spatially consistent and opposite for occurrence (negative) and density (positive), indicating that hake may aggregate in areas of high northward velocity in this region. In areas s |
| Official Citation | Malick, M.J., Hunsicker, M., Haltuch, M.A., Parker-Stetter, S.L., Marshall, K.N., Pohl, J., Berger, A.M., Siedlecki, S., Gauthier, S., and Hermann, A. 2024. Spatially-varying effects of the California Undercurrent on Pacific hake distribution. Canadian Journal of Fisheries and Aquatic Sciences 81(2): 154¿165. doi:10.1139/cjfas-2023-0202. |
| Links | (10.1139/cjfas-2023-0202) |