The role of Ulva spp. as a temporary nutrient sink in a coastal lagoon with oyster cultivation and upwelling influence
Bahía San Quintín is a coastal lagoon with large Ulva biomass and upwelling influence. Previous observations suggest that Ulva has increased recently as a result of oyster cultivation. To evaluate the possible role of Ulva as a temporary nutrient sink, biomass and tissue C, N, and P were determined seasonally. Maximum biomass was present during spring and early summer (1,413-1,160 t (dry)) covering about 400 ha. However, the biomass decreased to 35 t (dry) by winter. The mean annual percentage of Ulva C, N, and P was 28%, 2%, and 0.14%, respectively. This study shows that Ulva can store up to 28 t of N and 2 t of P in Bahía San Quintín during spring-summer. Ulva may be displacing the seagrass Zostera marina subtidal beds. A partial removal of the seaweed would reduce the risk of eutrophication and the displacement of eelgrass beds.
Main Authors: | Zertuche González, José A., Camacho Ibar, Victor F. autor/a, Pacheco Ruiz, Isaí autor/a, Cabello Pasini, Alejandro autor/a, Galindo Bect, Luis Arnulfo autor/a, Guzmán Calderón, José M. autor/a, Macias Carranza, Víctor autor/a, Espinoza Ávalos, Julio Doctor 1952-2018 autor/a 2042 |
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Format: | Texto biblioteca |
Language: | eng |
Subjects: | Ulva, Algas marinas, Biomasa vegetal, Cultivo de ostras, Lagunas costeras, |
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