Description

Assessment of the ecological quality of coastal water bodies in Réunion as part of the monitoring programme of the Water Framework Directive (2000/60/EC) for transparency. Map(s) from the Atlas DCE Reunion Basin. Transparency measurements shall be carried out sub-surface in coastal water bodies and surface-to-bottom (inf 3m) in reef-type coastal water bodies. The management plan is monitored every year on the basis of two campaigns per sampled period: Southern winter (July/August), warm season (November/December), mid-cyclonic season (February/March). The transparency indicator is defined by the 90 percentile, which corresponds to the value such that 90% of the observed values are lower than it. It is compared to the reference value corresponding to the type of the water body, which makes it possible to compare the value to the quality grid and classify the water body against this element as very good, good, medium, poor or bad. Map 2013: Assessment based on data acquired up to the end of 2012 and validated as part of the 2013 state of play update. Map 2016: State of the WFD Atlas in 2016: assessment based on data acquired up to the end of 2015 Map 2019: State of the DCE Atlas in January 2019: assessment based on data acquired over the period 2011-2016 The most recent assessment of the state of this element is presented in the DCE Réunion atlas.

Resources

Name	Format	Description	Link
	0		https://www.data.gouv.fr/fr/datasets/r/e4580d4a-53ab-44a1-a2b4-38746b2223f5
	0		https://www.data.gouv.fr/fr/datasets/r/70dddea4-6020-4831-a9cd-13bf5f2100ed
	0		https://www.data.gouv.fr/fr/datasets/r/3a4896ed-5a4c-4df2-a3b6-77700a70383c
	0		https://www.data.gouv.fr/fr/datasets/r/019ca926-79f3-4cbf-af28-3fc47e3281bb

WFD – Reunion Basin – Ecological status – Physico-chemical status – Transparency

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