Modelling the hydroclimatic effects on the Coregonus migratorius seasonal spawning migration in the Selenga-Baikal hydrological system

Авторы: Vsevolod Moreydo, Tatiana Millionshchikova, Sergey Chalov
Журнал: Proceedings of the International Association of Hydrological Sciences
Том: 381
Год издания: 2019
Первая страница: 113
Последняя страница: 119
DOI: 10.5194/piahs-381-113-2019
Аннотация: Regional climate change affects the flow conditions in river basins which can impact the health of aquatic ecosystems. Potential impacts of future climate scenarios on Coregonus migratorius spawning migration in the Selenga River were assessed. A regional process-based hydrological model was used to reproduce the historical trends in the annual flow and assess its future changes under several climate change scenarios. Annual flow projections were used to identify preferential river reaches for spawning activity of the Arctic cisco (Coregonus migratorius), based on the significant negative correlation of spawning activity with the Selenga River streamflow. The applied methodology shows that the projected decline in runoff of 10 % to 25 % in XXI century may result in shifting of the spawning locations further upstream of the Ulan-Ude city, a local “pollution hotspot”.
Добавил в систему: Чалов Сергей Романович

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