| The euphotic zone is the layer closer to the surface that receives enough light for photosynthesis to occur. |
| All plankton, kelp forests and seagrass beds are found in the euphotic zone. |
| This composite sample will then represent all levels of the lake water in the euphotic zone. |
| The euphotic zone extends from the surface down to the maximum depth at which photosynthetic plants can grow. |
| The illuminated region above it is called the photic zone, within which are distinguished the euphotic and disphotic zones. |
| Therefore the physical nutrient supply in the euphotic zone is a measure of the impact of the physical mechanisms on the primary production. |
