Application and sensitivity testing of a eutrophication assessment method on coastal systems in the United States and European Union

Effects of nutrient enrichment in the nation's estuaries: A decade of change

“…The National Estuarine Eutrophication Assessment method and modifications, called Assessment of Estuarine Trophic Status (hereafter called NEEA) have been well described in Bricker et al (1999Bricker et al ( , 2003Bricker et al ( , 2007, Ferreira et al (2007) and Scavia and Bricker (2006). A comparison of this approach with that of other assessment methods can be found in Bricker et al (2006) and Xiao et al (2007).…”

“…In the Gulf of Mexico region, high loads corresponded with high agricultural activity and the Mississippi River outflow. Analysis of loads was performed using a model that compares nutrient loads from the watershed to loads from the ocean in order to identify whether the loading source is primarily the watershed and is related to human activities, or is from ocean inputs (Bricker et al, 2003;Ferreira et al, 2007). Nutrient loads are derived mainly from the watershed in more than 75% of systems.…”

“…The load component is estimated as the ratio of nitrogen coming from the land (i.e. human-related) to that coming from the ocean (Bricker et al, 2003;Ferreira et al, 2007). The load rating also provides insight into load management since loads that are primarily oceanic in origin will not be easily controlled.…”

PHYMED: Un sistema de indicadores ecológicos para la Directiva Marco del Agua basado en la composición de la comunidad fitoplanctónica

“…Se ha de tener en cuenta que los síntomas naturales de los procesos de eutrofización pueden variar mucho entre las diferentes tipologías de las masas de aguas (Ferreira, 2007). Por tanto, la tipología deber estar basada en características físicas más que en métricos (como la clorofila a) puesto que sistemas pertenecientes a la misma tipología exhibirán un rango de síntomas de eutrofización dependiendo del uso humano (Ferreira, 2007).…”

“…Por tanto, la tipología deber estar basada en características físicas más que en métricos (como la clorofila a) puesto que sistemas pertenecientes a la misma tipología exhibirán un rango de síntomas de eutrofización dependiendo del uso humano (Ferreira, 2007).…”