Phytoplankton is not a reason to panic
Rapid “water bloom” in the Taganrog Bay of the Azov sea, following the spring floods, shows the level of productivity of the waters and provides a food base for fish, experts say Azniirkh.
This year, residents of the Rostov region disturbed massive “algal blooms” in the Taganrog Bay. In fact, the active growth of phytoplankton is not a reason for fear, but only an indicator of the level of the biological productivity of this area, said Fishnews in the press service of the Azov fisheries research Institute.
It is the phytoplankton is the first step for the formation of fish stocks, because it serves as food for small invertebrates (zooplankton), which in turn feeds on juveniles of catadromous fishes (pike perch, bream, roach) or Miloserdiye (sprat, anchovy).
For phytoplankton growth requires nutrients brought to the sea with river runoff. In 2018 for the first twenty years were marked by increased spring runoff don in four to five times more the usual amount.
Studies have shown that in July the concentration of photosynthetic pigment in the cells of microalgae – the main indicator of productivity – on the waters of the Eastern, freshened part of Gulf of Taganrog increased several times compared to shallow 2017 At the same level of production of organic matter by phytoplankton has increased by 61%, which is directly related to the freshening of the waters of the Gulf due to flooding.
According to scientists, “flowering waters” of the sea of Azov is the most important factor in the formation of organic matter and in the future, the food chain provides a food base for fish. Therefore, flooding is a necessary condition for a successful status of water bodies and high fish stocks not only to don, but in the Taganrog Bay and the Azov sea.
According to the materials: fishnews.ru