The role of water mass advection in staging of the Southern Ocean Salpa thompsoni populations
| Type | Article | ||||||||||||
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| Date | 2023-05 | ||||||||||||
| Language | English | ||||||||||||
| Author(s) | Henschke Natasha1, Espinasse Boris2, Stock Charles A.3, Liu Xiao3, Barrier Nicolas4, Pakhomov Evgeny A.1, 5 | ||||||||||||
| Affiliation(s) | 1 : Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC, Canada 2 : Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Tromsø, Norway 3 : Geophysical Fluid Dynamics Laboratory, NOAA, 201 Forrestal Road, Princeton, NJ, 08540, USA 4 : MARBEC, University of Montpellier, CNRS, Ifremer, IRD, Sète, France 5 : Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, BC, Canada |
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| Source | Scientific Reports (2045-2322) (Springer Science and Business Media LLC), 2023-05 , Vol. 13 , N. 1 , P. 7088 (8p.) | ||||||||||||
| DOI | 10.1038/s41598-023-34231-7 | ||||||||||||
| WOS© Times Cited | 1 | ||||||||||||
| Abstract | Salpa thompsoni is an important grazer in the Southern Ocean. Their abundance in the western Antarctic Peninsula is highly variable, varying by up to 5000-fold inter-annually. Here, we use a particle-tracking model to simulate the potential dispersal of salp populations from a source location in the Antarctic Circumpolar Current (ACC) to the Palmer Long Term Ecological Research (PAL LTER) study area. Tracking simulations are run from 1998 to 2015, and compared against both a stationary salp population model simulated at the PAL LTER study area and observations from the PAL LTER program. The tracking simulation was able to recreate closely the long-term trend and the higher abundances at the slope stations. The higher abundances observed at slope stations are likely due to the advection of salp populations from a source location in the ACC, highlighting the significant role of water mass circulation in the distribution and abundance of Southern Ocean salp populations. |
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