Título
Maintenance of Coastal Surface Blooms by Surface Temperature Stratification and Wind Drift
Autor
MARY CARMEN RUIZ DE LA TORRE
Colaborador
HELMUT MASKE RUBACH
JOSE LUIS OCHOA DE LA TORRE (Colaborador)
CESAR OCTAVIO ALMEDA JAUREGUI (Colaborador)
Nivel de Acceso
Acceso Abierto
Identificador alterno
doi: https://doi.org/10.1371/journal.pone.0058958
Materias
chlorophyll, algal bloom, article, cell count, cell density, coastal waters, controlled study, dinoflagellate, Lingulodinium polyedrum, meteorological phenomena, Mexico, near surface temperature stratification, nonhuman, nutrient concentration, popul - (SCOPUS) CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA - (CTI) CIENCIAS DE LA TIERRA Y DEL ESPACIO - (CTI) OCEANOGRAFÍA - (CTI) OCEANOGRAFÍA - (CTI)
Resumen o descripción
Algae blooms are an increasingly recurrent phenomenon of potentially socio-economic impact in coastal waters globally and in the coastal upwelling region off northern Baja California, Mexico. In coastal upwelling areas the diurnal wind pattern is directed towards the coast during the day. We regularly found positive Near Surface Temperature Stratification (NSTS), the resulting density stratification is expected to reduce the frictional coupling of the surface layer from deeper waters and allow for its more efficient wind transport. We propose that the net transport of the top layer of approximately 2.7 kilometers per day towards the coast helps maintain surface blooms of slow growing dinoflagellate such as Lingulodinium polyedrum. We measured: near surface stratification with a free-rising CTD profiler, trajectories of drifter buoys with attached thermographs, wind speed and direction, velocity profiles via an Acoustic Doppler Current Profiler, Chlorophyll and cell concentration from water samples and vertical migration using sediment traps. The ADCP and drifter data agree and show noticeable current shear within the first meters of the surface where temperature stratification and high cell densities of L. polyedrum were found during the day. Drifters with 1m depth drogue moved towards the shore, whereas drifters at 3 and 5 m depth showed trajectories parallel or away from shore. A small part of the surface population migrated down to the sea floor during night thus reducing horizontal dispersion. The persistent transport of the surface bloom population towards shore should help maintain the bloom in favorable environmental conditions with high nutrients, but also increasing the potential socioeconomic impact of the blooms. The coast wise transport is not limited to blooms but includes all dissolved and particulate constituents in surface waters. © 2013 Ruiz-de la Torre et al.
Editor
Inés Álvarez, University of Vigo, Spain
Fecha de publicación
2013
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Fuente
PLoS ONE, Vol.8, No.4, Pags. 1-10
Idioma
Inglés
Sugerencia de citación
Ruiz-de la Torre MC, Maske H, Ochoa J, Almeda-Jauregui CO (2013) Maintenance of Coastal Surface Blooms by Surface Temperature Stratification and Wind Drift. PLoS ONE 8(4): e58958. https://doi.org/10.1371/journal.pone.0058958
Repositorio Orígen
Repositorio Institucional CICESE
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