Sources of persistent organic pollutants and their physiological effects on opportunistic urban gulls
Por:
Nos, D, Montalvo, T, Cortés-Francisco, N, Figuerola, J, Aymí, R, Giménez, J, Solé, M, Navarro, J
Publicada:
5 mar 2024
Ahead of Print:
1 dic 2023
Resumen:
Urbanization is associated with drastic shifts in biodiversity. While some species thrive in urban areas, the impact of inhabiting these human-altered environments on organism physiology remains understudied. We investigated how exposure to polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) affects the physiology of yellow-legged gulls (Larus michahellis) inhabiting a densely populated, industrialized city. We analyzed blood samples from 50 gulls (20 immatures and 30 adults) and assessed 27 physiological parameters and biomarkers related to xenobiotic protection, health, and feeding habits in these same individuals. We also tracked the movements of 25 gulls (15 immatures and 10 adults) to identify potential sources of persistent organic pollutants (POPs). Both adult and immature gulls primarily inhabited urban areas, followed by marine habitats. Immature gulls spent more time in freshwater, landfills, and agricultural areas. Bioaccumulated sigma PCB (median = 92.7 ng g-1 ww, 1.86-592) and sigma PBDE (median = 1.44 ng g-1 ww, 0.022-9.58) showed no significant differences between age and sex groups. Notably, immature males exhibited the highest correlations with POP concentrations, particularly with the activity of carboxylesterases (CEs), suggesting a higher sensitivity than adults. These findings highlight the potential of plasmatic CEs in immature yellow-legged gulls as effective tracers of POPs exposure and effects, offering insights into the anthropogenic impacts on urban biodiversity.
Filiaciones:
Nos, D:
CSIC, Inst Ciencies Mar ICM, Passeig Maritim Barceloneta 37-49, Barcelona 08003, Spain
Montalvo, T:
Agencia Salut Publ Barcelona, Pl Lesseps 1, Barcelona 08023, Spain
CIBER Epidemiol & Salud Publ CIBERESP, Madrid, Spain
Inst Invest Biomed Sant Pau IIB St Pau, Barcelona, Spain
Cortés-Francisco, N:
Agencia Salut Publ Barcelona, Pl Lesseps 1, Barcelona 08023, Spain
CIBER Epidemiol & Salud Publ CIBERESP, Madrid, Spain
Figuerola, J:
Estn Biol Donana CSIC, Estac Biol Donana, Ave Americo Vespucio 26, Seville 41092, Spain
CIBER Epidemiol & Salud Publ CIBERESP, Madrid, Spain
Aymí, R:
Museu Ciencies Nat Barcelona, Inst Catala Ornitol, Pl Leonardo da Vinci 4-5, Barcelona 08019, Spain
Giménez, J:
CSIC, Inst Ciencies Mar ICM, Passeig Maritim Barceloneta 37-49, Barcelona 08003, Spain
Solé, M:
CSIC, Inst Ciencies Mar ICM, Passeig Maritim Barceloneta 37-49, Barcelona 08003, Spain
Navarro, J:
CSIC, Inst Ciencies Mar ICM, Passeig Maritim Barceloneta 37-49, Barcelona 08003, Spain
hybrid, All Open Access; Hybrid Gold Open Access
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