Past and Current Changes in the Largest Lake of the World: The Caspian Sea

Leroy, Suzanne A G; Lahijani, Hamid; Crétaux, Jean-François; Аладин, Н. В.; Плотников, И. С.

doi:10.1007/978-3-030-42254-7_3

Cited by 24 publications

(33 citation statements)

References 90 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(2016a) on a long‐term scale. Increased water vapour was probably transported from the North Atlantic, the Mediterranean, Black and Caspian Seas to mid‐latitude areas during the interstadials (Arpe et al ., 2011; Bar‐Matthews et al ., 2011; Chen et al ., 2019; Leroy et al ., 2014, 2020). This likely resulted in higher lake levels and increased vegetation density in most parts of arid central Asia (Jiang et al ., 2011; Fan et al ., 2014; Wei et al ., 2015).…”

Section: Discussionmentioning

confidence: 99%

Late Pleistocene hydroclimatic variabilities in arid north‐west China: geochemical evidence from Balikun Lake, eastern Tienshan, China

Zhao

Zhou

et al. 2021

J Quaternary Science

View full text Add to dashboard Cite

Reconstructing the environmental and hydrological response to millennial‐scale fluctuations of climate‐sensitive areas of mid‐latitudes is crucial to understanding the Late Pleistocene climate in terrestrial inland regions. We use sedimentological and geochemical proxies (e.g. lithology, gain size, loss‐on‐ignition, soluble salts, X‐ray fluorescence elements) from Balikun Lake in the eastern Tienshan Mountains, to elucidate variations in sedimentation, water chemistry and watershed weathering intensity of the Late Pleistocene interval (~20−60 ka). The record documents high‐frequency oscillations and alternating hydrological patterns on (multi‐) millennial timescales. Balikun Lake changes from nearly fresh to brackish and finally to hypersaline conditions during MIS3. The warm and wet climate during the early MIS3 facilitated regional vegetation and bioproductivity. Halite sedimentation took place from the middle to late MIS3, indicating a gradual drying trend. This reduced the lake area and vegetation cover, as well as weakened the chemical weathering rates of the watershed. These new interpretations challenge the idea of climate amelioration with the highest lake level and wettest conditions prevailing in the arid areas of north‐west China during the late MIS3, indicating a possible westerlies‐dominated Late Pleistocene climate in these areas. The evolution of the palaeohydrological regime and climate change in the Balikun Basin correlated well with the millennial‐scale high‐latitude Atlantic climate superimposed on the Northern Hemisphere summer insolation.

show abstract

Section: Discussionmentioning

confidence: 99%

Late Pleistocene hydroclimatic variabilities in arid north‐west China: geochemical evidence from Balikun Lake, eastern Tienshan, China

Zhao

Zhou

et al. 2021

J Quaternary Science

View full text Add to dashboard Cite

show abstract

“…Climate‐induced changes in the hydrological budget of the CS are the main cause of such CSL fluctuations. A total of 80–90% of the water budget of the CS catchment is provided by the Volga River (Leroy et al ., 2020; Rodionov, 1994). The recent CSL values are based on satellite observation (Cazenave et al ., 1997; USDA1, 2017) while the values from before 1993 are from tide gauge observations collected from multiple sources (Arpe et al ., 2000; Golitsyn et al ., 1995).…”

Section: Settingmentioning

confidence: 99%

“…The Caspian Sea (CS) has no connection to the ocean and therefore the Caspian Sea level (CSL) varies with a change of its water balance that is related to global atmospheric circulation. In the Quaternary, the CSL has fluctuated by several hundreds of meters, with changes by several tens of metres in the Holocene (Leroy et al ., 2020; Naderi‐Beni et al ., 2013).…”

Section: Introductionmentioning

confidence: 99%

Wind variability over the Caspian Sea, its impact on Caspian seawater level and link with ENSO

Arpe

Molavi-Arabshahi

Leroy

2020

Intl Journal of Climatology

View full text Add to dashboard Cite

Newly available time series of 10‐m winds over last 60 years in the South Caspian Sea (CS) region show a remarkable shift in wind speed in 1995, that is also the year of maximum elevation of the Caspian Sea level (CSL). Our aim is to find the mechanisms linking these two features. This change is not only seen in the wind observations along the Southern CS coast, but also in the European Centre for Medium‐Range Weather Forecasts (ECMWF) reanalysis covering the Southern CS, leading there to an increase of evaporation after 1995. Due to wind increase, evaporation increases but does not lead to enhanced precipitation over the CS catchment area, the water seems to be lost to the east of the drainage basin for the water budget of the CS after 1995. This stopped the CSL rise and caused its post‐1995 fall. The connection between the wind speed and the trend of the CSL can also be seen for the 1977 low stand. Before 1977, the CSL was slightly dropping with relatively strong wind, then the wind speed fell and the CSL started to rise. The change of the wind seems to be induced by a teleconnection from El Niño‐Southern oscillation (ENSO). It is shown that ENSO impact is much stronger than that of North Atlantic oscillation (NAO), not only for the change of the CSL, but also for several key components of the CS water budget, like the Volga river discharge and wind speed. The wind speed is induced by ENSO, which is demonstrated by a shift of the jet stream over the CS area. This could be an explanative link between ENSO and CSL variability, but still needs further understanding. The NAO has a similar impact but to a lesser degree. When NAO and ENSO are working in the same direction, the CSL change is enhanced like from 1990 to 1995.

show abstract

“…Among sturgeon species, beluga has the best meat quality and is the most expensive one (Montazeri Parchikolaei et al, 2021). Farmers usually farm this species in the Caspian Sea, a polluted water resource with heavy metals (Ali Azadi et al, 2018; Leroy et al, 2020) and freshwater.…”

Section: Introductionmentioning

confidence: 99%

“…Farmers usually farm this species in the Caspian Sea, a polluted water resource with heavy metals (Ali Azadi et al, 2018;Leroy et al, 2020) and freshwater.…”

mentioning

confidence: 99%

EDTA detoxifies heavy metals on exposed beluga ( Huso huso ) with pollution stress: Growth performance, immunohaematology, blood biochemistry and antioxidant activity

Falahatgar

Javadian

Soleymani

et al. 2021

Aquaculture Research

View full text Add to dashboard Cite

Ethylenediaminetetraacetic acid (EDTA) is one of the most popular chelating agents. This study was conducted to investigate the effect of EDTA on the growth and health physiology of beluga (38.47 ± 0.58 g) before and after heavy metal stress (HMS). Five experimental diets, including control, 0.5EDTA, 1EDTA, 1.5EDTA and 2EDTA, were formulated to feed fish for eight weeks. The results showed that fish was fed with dietary 1.5EDTA (108.37 g) had a higher weight gain as compared with control (p < 0.05). Blood performance in the control group after HMS decreased but not in fish fed supplemented diets with EDTA. EDTA reduced uric acid and creatinine levels in beluga. Fish fed dietary 1.5EDTA had a higher value of blood performance (55.17), glucose (50.3 mg/dl), superoxide dismutase (SOD U/ml) (75.8) and glutathione peroxidase (234.0 U/ml) after HMS as compared with the control. Additionally, lower values of uric acid (3.05 mg/dl), creatinine (0.27 mg/dl) and AST (61.47 U/ml) after HMS in the 1.5EDTA group were observed (p < 0.05). Correlation analysis revealed a strong positive correlation between EDTA level and protein efficiency, lipid efficiency, and blood performance and a strong negative correlation with some parameters after stress, including SOD, glucose, uric acid, creatinine and aspartate transaminase (p < 0.01). In conclusion, feeding fish with the 1.5EDTA diet improved growth and detoxified heavy metals.

show abstract

Past and Current Changes in the Largest Lake of the World: The Caspian Sea

Cited by 24 publications

References 90 publications

Late Pleistocene hydroclimatic variabilities in arid north‐west China: geochemical evidence from Balikun Lake, eastern Tienshan, China

Late Pleistocene hydroclimatic variabilities in arid north‐west China: geochemical evidence from Balikun Lake, eastern Tienshan, China

Wind variability over the Caspian Sea, its impact on Caspian seawater level and link with ENSO

EDTA detoxifies heavy metals on exposed beluga ( Huso huso ) with pollution stress: Growth performance, immunohaematology, blood biochemistry and antioxidant activity

Contact Info

Product

Resources

About