Now putrescent waves were choked with massive blooms of algae.

The combination of sunlight and stagnant, nutrient rich, heated water caused massive blooms of blue-green algae.

But most are pointing to the massive blooms themselves as the likely source of the odors in the absence of any man-made chemical spills along the coast.

By 1986 massive blooms of cyanobacteria began occurring, as well as dense populations of roach, a fish that benefited from the pollution's mineral nutrients.

It is also helpful as it outcompetes algae for nutrients in the water, thereby preventing massive algal blooms.

By the end of the 20th century, there was notable success, as massive algal blooms vanished and recreational fishing and boating rebounded.

This hypothesis has been tested on more than 10 different occasions and in all cases, massive blooms resulted.

Cell densities are usually negligible, but favourable conditions can result in massive blooms also known as red tides.

First came massive algal blooms.

A large section of the ocean is without marine life because of massive algal blooms caused by the high nutrients in the water.