Научно-издательский центрDOI: 10.38006/00187-838-4.2024.112.113
М. В. Иванов - Санкт-Петербургский государственный университет, Санкт-Петербург;
А. С. Демчук - Санкт-Петербургский государственный университет, Санкт-Петербург;
Н. Е. Зеленская - Санкт-Петербургский государственный университет, Санкт-Петербург;
Т. С. Иванова - Санкт-Петербургский государственный университет, Санкт-Петербург;
Н. В. Полякова - Санкт-Петербургский государственный университет, Санкт-Петербург;
П. В. Головин - Санкт-Петербургский государственный университет, Санкт-Петербург;
Д. Л. Лайус - Санкт-Петербургский государственный университет, Санкт-Петербург;
The goal of the work is to investigate the role of threespine stickleback Gasterosteus aculeatus in the transfer of substances and energy between the open sea and coastal communities in the White Sea. Five main coastal biotopes habitats in the White Sea were described and their role in spawning of stickleback was evaluated. Almost all sticklebacks (1.9 billion) spawn in the western part of the sea. Approaching the inshore zone to spawn, stickleback brings a significant amount of substance and energy – 6200 tons in fish bodies and 800 tons in eggs. Coastal predators utiliz only 1–2% of this due to their low numbers. The stickleback itself consumes 90–95% of the spawned eggs mainly by destroying nests. Since the stickleback eats mostly its own eggs, it put a low pressure on the coastal prey organisms. The main mortality of stickleback occurs after spawning in the open sea.