Recent changes of water level in Lake Khanka and their consequences for its fisheries resources
Interannual variation of the water level in Lake Khanka is considered on satellite altimetry data; its extreme rising in recent years is noted, with the maximum in 2016. Using a simple balance model, contribution of the main components of its water balance to the modern rise is determined, as precip...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Russian |
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Transactions of the Pacific Research Institute of Fisheries and Oceanography
2020-12-01
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| Series: | Известия ТИНРО |
| Subjects: | |
| Online Access: | https://izvestiya.tinro-center.ru/jour/article/view/597 |
| _version_ | 1797759347704463360 |
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| author | Y. I. Zuenko M. E. Shapovalov A. S. Kurnosova |
| author_facet | Y. I. Zuenko M. E. Shapovalov A. S. Kurnosova |
| author_sort | Y. I. Zuenko |
| collection | DOAJ |
| description | Interannual variation of the water level in Lake Khanka is considered on satellite altimetry data; its extreme rising in recent years is noted, with the maximum in 2016. Using a simple balance model, contribution of the main components of its water balance to the modern rise is determined, as precipitation in its basin, evaporation, and water discharge through the Sungacha River. Growth of summer precipitation is defined as the main reason of the level rising. However, the water income to the lake does not correlate with the precipitation volume since 2010 that confirms the hypothesis about artificial influence on the water balance of Lake Khanka by its connection with the Mulin River (China) and worsening of the outflow through the Sungacha. As the result, the lake got additionally about 1.3 km3 in 2014–2015 that promoted the level rise to the highest mark. But before and after this period, the water inflow was lower than its expected values, obviously because of its redistribution. Positive influence of the anomalous water level growth on total abundance of commercial fish species is shown. The high level is favorable for reproduction of phytophilic species (Cyprinus rubrofuscus), whereas abundance of pelagophilic species (Chanodichthys erythropterus) declines. |
| first_indexed | 2024-03-12T18:43:07Z |
| format | Article |
| id | doaj.art-ca92c1f8747d46348be40d806e31ac2c |
| institution | Directory Open Access Journal |
| issn | 1606-9919 2658-5510 |
| language | Russian |
| last_indexed | 2024-03-12T18:43:07Z |
| publishDate | 2020-12-01 |
| publisher | Transactions of the Pacific Research Institute of Fisheries and Oceanography |
| record_format | Article |
| series | Известия ТИНРО |
| spelling | doaj.art-ca92c1f8747d46348be40d806e31ac2c2023-08-02T07:48:45ZrusTransactions of the Pacific Research Institute of Fisheries and OceanographyИзвестия ТИНРО1606-99192658-55102020-12-01200493595010.26428/1606-9919-2020-200-935-950552Recent changes of water level in Lake Khanka and their consequences for its fisheries resourcesY. I. Zuenko0M. E. Shapovalov1A. S. Kurnosova2Тихоокеанский филиал ВНИРО (ТИНРО)Тихоокеанский филиал ВНИРО (ТИНРО)Тихоокеанский филиал ВНИРО (ТИНРО)Interannual variation of the water level in Lake Khanka is considered on satellite altimetry data; its extreme rising in recent years is noted, with the maximum in 2016. Using a simple balance model, contribution of the main components of its water balance to the modern rise is determined, as precipitation in its basin, evaporation, and water discharge through the Sungacha River. Growth of summer precipitation is defined as the main reason of the level rising. However, the water income to the lake does not correlate with the precipitation volume since 2010 that confirms the hypothesis about artificial influence on the water balance of Lake Khanka by its connection with the Mulin River (China) and worsening of the outflow through the Sungacha. As the result, the lake got additionally about 1.3 km3 in 2014–2015 that promoted the level rise to the highest mark. But before and after this period, the water inflow was lower than its expected values, obviously because of its redistribution. Positive influence of the anomalous water level growth on total abundance of commercial fish species is shown. The high level is favorable for reproduction of phytophilic species (Cyprinus rubrofuscus), whereas abundance of pelagophilic species (Chanodichthys erythropterus) declines.https://izvestiya.tinro-center.ru/jour/article/view/597уровень озераводный балансбалансовая модельозеро ханкаамурский сазанверхогляд |
| spellingShingle | Y. I. Zuenko M. E. Shapovalov A. S. Kurnosova Recent changes of water level in Lake Khanka and their consequences for its fisheries resources Известия ТИНРО уровень озера водный баланс балансовая модель озеро ханка амурский сазан верхогляд |
| title | Recent changes of water level in Lake Khanka and their consequences for its fisheries resources |
| title_full | Recent changes of water level in Lake Khanka and their consequences for its fisheries resources |
| title_fullStr | Recent changes of water level in Lake Khanka and their consequences for its fisheries resources |
| title_full_unstemmed | Recent changes of water level in Lake Khanka and their consequences for its fisheries resources |
| title_short | Recent changes of water level in Lake Khanka and their consequences for its fisheries resources |
| title_sort | recent changes of water level in lake khanka and their consequences for its fisheries resources |
| topic | уровень озера водный баланс балансовая модель озеро ханка амурский сазан верхогляд |
| url | https://izvestiya.tinro-center.ru/jour/article/view/597 |
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