How do different types of glaciers generally influence phytoplankton?

A typical glacier on land will have runoff then bring material from land (sediments and nutrients) into the fjord. Sometimes a lot of sediment inibits light but if there is not to much sediment it can be beneficial for phytoplankton. Close to glacier euphotic zone is not deep because of sediment. Glaciers going directly into sea: Makes more phytoplankton production often. There is always exchange of water into the fjord. Then the water rises to the surface and makes upwelling at the glacier front. To close to the glacier is light to little but further away from the glacier is a lot of primary production.