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Concerned HAB Species in the NOWPAP region


Cochlodinium polykrikoides has caused the most serious damage to the fisheries in Japan and Korea in recent years. For example, in 1999 approximately US$ 7 million worth of fishery damage was recorded in Imari Bay, Kyushu, Japan. Even greater economic losses were recorded in Korea in 1995 and 2003, worth approximately US$ 19 million, respectively.
So, CEARAC/WG3 developed Cochlodinium Homepage and made Cochlodinium Pamphlet in order to provide basic information of this species for stakeholders.

Satellite Remote Sensing

Remote sensing can provide data and information on chlorophyll-a concentration, suspended solids (SS), colored dissolved organic matter (CDOM), primary productivity of phytoplankton, red tides and sea surface temperature (SST) fields. It can also help to analyze the mechanisms of eutrophication and red tides for predicting blooms and providing data on the adaptation and mitigation of eutrophication.

CEARAC/WG4 has implemented activities of development of new marine environmental monitoring tools by remote sensing and published Integrated Report on Ocean Remote Sensing for the NOWPAP Region. The objectives of this report are to provide and to share information on the status of Ocean RS in the NOWPAP region

In the NOWPAP region, various satellite images and information are provided through following websites,


Eutrophication is a phenomenon of aquatic ecosystem enrichment due to increased nutrient loading. Eutrophication is often caused by human activities such as additional input of fertilizers from agriculture farming, food for aquaculture, untreated and/or treated sewage as well as industrial wastewater inputs. Eutrophication causes the deterioration of the coastal environment and typically leads to the formation of harmful algal blooms which may subsequently induce fish kill, further ecosystem damage and, at times, are directly of indirectly associated with human health problems. Eutrophication degrades the water quality by accelerating organic matter growth and decomposition as well as decreasing the light availability in the coastal waters.

CEARAC/WG4 published Eutrophication Monitoring Guidelines by Remote Sensing for the NOWPAP Region in order to form a basis of common methods for evaluation and use of satellite data, to promote the use of remote sensing as a marine environmental monitoring tool and to coordinate implementation of an integrated marine environmental monitoring programme in the NOWPAP region.

CEARAC surrently started joint activity between WG3 and WG4. This activity aims to develop useful procedures for assessment of eutrophication status (nutrient enrichment, HAB occurrence, and other direct and indirect effects from nutrient enrichment) by using remote sensing techniques that can be shared among the NOWPAP member states. CEARAC made draft procedures that's objectives are to enable each NOWPAP member state to assess the status and impacts of eutrophication in their respective sea area, by using data/information obtained through existing monitoring activities. The assessment results could hopefully then be utilized by each NOWPAP member state for consideration and development of monitoring systems and countermeasures against eutrophication.