Personal tools

Notifications
Get notifications on new reports and products. Frequency: 3-4 emails / month.
Subscriptions
Sign up to receive our reports (print and/or electronic) and quarterly e-newsletter.
Follow us
Twitter icon Twitter
Facebook icon Facebook
YouTube icon YouTube channel
RSS logo RSS Feeds
More

Write to us Write to us

For the public:


For media and journalists:

Contact EEA staff
Contact the web team
FAQ

Call us Call us

Reception:

Phone: (+45) 33 36 71 00
Fax: (+45) 33 36 71 99


next
previous
items

Skip to content. | Skip to navigation

Sound and independent information
on the environment

You are here: Home / News / Algal bloom in coastal waters

Algal bloom in coastal waters

The hot weather affecting much of Europe is encouraging the formation of coloured 'blooms' of algae in several coastal areas, which can make bathing unpleasant and pose a range of problems for coastal ecosystems.

More on algal blooms in particular and the problem of eutrophication in general in the EEA report: Eutrophication in Europe's coastal waters .


Excessive growth of plankton algae increases the amount of organic matter settling to the bottom. Harmful algal blooms may cause discoloration of the water, foam formation, oxygen depletion, death of benthic fauna and wild or caged fish, or shellfish poisoning of humans. Increased growth and dominance of fast growing filamentous macroalgae in shallow sheltered areas is yet another effect of nutrient overload which will change the coastal ecosystem, increase the risk of local oxygen depletion and reduce biodiversity and nurseries for fish.

More on algal blooms in particular and on eutrophication in general in the EEA report Eutrophication in Europe's coastal waters. The structure of the report generally follows the DPSIR assessment framework, where D = driving forces, P = pressures, S = state, I = impacts and R = responses. The DPSIR framework for marine eutrophication is illustrated in Figure 1. Driving forces and source apportionment are not main topics and are only briefly mentioned in this report, which concentrates on pressures, state, impacts and responses.

Figure1.gif

Other reports from EEA on algal blooms and eutrophication:

Indicator:


Other sources for information on algal bloom

Several institutions in Europe are involved in the monitoring and assessment of eutrophication using satellite images and can supply more detailed information on specific areas.

Modis.jpeg Figure 2: Satellite image on algal bloom in Danish and German waters
Source: DMI, image enhanced by PhD. Peter Viskum Jørgensen, DMI.
Note: The image is made by the Aqua-satellites MODIS-instrument (Moderate-Resolution Imaging Spectroradiometer) on Thursday 7 August 2003 at 14:00. The algae are visible as the white and green colored strings in the water.

Links:

Read more

Geographical coverage

[+] Show Map

Document Actions

Comments

Sign up now!
Get notifications on new reports and products. Currently we have 33097 subscribers. Frequency: 3-4 emails / month.
Notifications archive
Follow us
 
 
 
 
 
Archive
Upcoming Events
Quick Event EnviroInfo Oldenburg, Germany 10 Sep 2014 - 12 Sep 2014 — Carl von Ossietzky Universität Oldenburg K.d.ö.R., Ammerländer Heerstraße 114-118, 26129 Oldenburg, Deutschland
Quick Event EnviroInfo Oldenburg, Germany 10 Sep 2014 - 12 Sep 2014 — Carl von Ossietzky Universität Oldenburg K.d.ö.R., Ammerländer Heerstraße 114-118, 26129 Oldenburg, Deutschland
Quick Event 17th International River Symposium 15 Sep 2014 - 18 Sep 2014 — Australian Capital Territory, Australia
Quick Event 8th European Conference on Pesticides and Related Organic Micropollutants in the Environment &14th Symposium on Chemistry and Fate of Modern Pesticides 18 Sep 2014 - 21 Sep 2014 — Epirus, Greece
Quick Event 29th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2014) 22 Sep 2014 - 26 Sep 2014 — Europaplein, 1078 GZ Amsterdam, Niederlande
Upcoming events…
European Environment Agency (EEA)
Kongens Nytorv 6
1050 Copenhagen K
Denmark
Phone: +45 3336 7100