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The role of water mass advection in staging of the Southern Ocean Salpa thompsoni populations
Henschke, N.; Espinasse, B.; Stock, C.A.; Liu, X.; Barrier, N.; Pakhomov, E.A. (2023). The role of water mass advection in staging of the Southern Ocean Salpa thompsoni populations. NPG Scientific Reports 13(1): 7088. https://dx.doi.org/10.1038/s41598-023-34231-7
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Salpa thompsoni Foxton, 1961 [WoRMS]
    Marien/Kust
Auteurs  Top 
  • Henschke, N.
  • Espinasse, B.
  • Stock, C.A.
  • Liu, X.
  • Barrier, N.
  • Pakhomov, E.A.
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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