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Harmful Algal Blooms (HABs)

Harmful Algal Bloom (HAB) is a serious marine environmental problem in which rapid growth of toxin-producing phytoplankton leads to massive death of cultured fish and natural marine resources, resulting in devastating damage to fishery.

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Eutrophication

Eutrophication is a phenomenon of abnormal increase of phytoplankton and degradation of water quality caused by excessive input of nutrient loads (nitrogen and phosphorus). Eutrophication may lead to red tide occurrences and hypoxia (oxygen depletion) in the sea.

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Marine Biodiversity

The NOWPAP region is one of the most diverse marine areas in the world, with many different environments, creating a rich ecosystem that is home to many different organisms.

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Marine Litter

Much of plastic products including plastic bottles we use in our daily lives are often going into the ocean, and this is becoming a serious problem in many parts of the world.

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Remote sensing of the marine enviroment

Satellite remote sensing is a very efficient observation technology which allows to obtain information of a wide area at one time.

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Environmental DNA (eDNA)

eDNA is a new method to analyze water and/or soils of habitats of target species to estimate their existence. Since this approach does not require to collect sample organisms, its usefulness and applicability to conservation of biological diversity is highly expected.

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2024.07.30 2023.11.01

Latest satellite images

Chlorphyll-a concentration in the NOWPAP region
Chlorophyll-a is a green pigment contained in pytoplankton, and it can be monitored from ocean color sensor. It is used as a proxy for phytoplankton abandance in the water. Image shows monthly composite of the previous month.