RT Journal Article
T1 Phytoplankton size changes and diversity loss in the southwestern Mediterranean Sea.
A1 Ramirez-Romero, Eduardo
A1 Molinero, Juan Carlos
A1 Sommer, Ulrich
A1 Salhi, Noussaiba
A1 Kéfi-Daly Yahia, Ons
A1 Daly Yahia, Mohamed Néjib
K1 Plancton marino
K1 Biodiversidad marina
K1 Mares y océanos - Temperatura
K1 Mediterráneo - Efectos del calentamiento global
AB Structural changes in plankton primary producers have large implications for food web dynamics, energy fluxes and the vertical export of biogenic particulate carbon. Here we examine phytoplankton data spanning the period 1993–2008 from the Bay of Tunis, southwestern Mediterranean Sea, in relation to long term hydroclimate variability. We show a conspicuous shift in the structure of the phytoplankton community characterized by an increase of small-sized species and diversity loss, revealing a dominance of smaller blooming diatoms and cyanobacteria. Such changes were concurrent with marked modifications in hydroclimatic patterns experienced in the Bay of Tunis consisting of a shift towards enhanced winter precipitation together with rising temperatures. This novel study shows an overall rise in the proportion of small phytoplankton cells and a decreasing trend in phytoplankton diversity in the southern Mediterranean area. These findings warn of a potential decline of trophic efficiency and lesser food web stability resulting from mean size reduction and the diversity loss.
PB Elsevier
YR 2020
FD 2020-01-03
LK https://hdl.handle.net/10630/38189
UL https://hdl.handle.net/10630/38189
LA eng
NO Eduardo Ramírez-Romero, Juan Carlos Molinero, Ulrich Sommer, Noussaiba Salhi, Ons Kéfi - Daly Yahia, Mohamed Néjib Daly Yahia, Phytoplankton size changes and diversity loss in the southwestern Mediterranean Sea in relation to long-term hydrographic variability, Estuarine, Coastal and Shelf Science, Volume 235, 2020, 106574, ISSN 0272-7714, https://doi.org/10.1016/j.ecss.2019.106574. (https://www.sciencedirect.com/science/article/pii/S0272771419306341)
NO https://openpolicyfinder.jisc.ac.uk/id/publication/16896
NO OCEAN-CERTAIN (FP7-ENV-2013-6.1-1; no: 603773)
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 21 ene 2026