Dietary Fatty Acid Transfer in Pelagic Food Webs Across Trophic and Climatic Differences of Chinese Lakes DOI
Yinzhe Zhang, Kai Feng, Dan Song

et al.

Published: Jan. 1, 2023

In eutrophic lake ecosystems, cyanobacteria typically lead to unbalanced phytoplankton community structure and low dietary quality for consumers at higher trophic levels. However, it still remains poorly understood how zooplankton manage respond seasonal spatial differences in gradients temperature factors retain highly required nutrients from phytoplankton. this field study, we investigated seston different size classes of temperate subtropical large lakes conditions China. We used fatty acids (FA) as investigate eutrophication affects the FA composition various classes. This study revealed a curvilinear relationship between total phosphorus (TP) polyunsaturated (PUFA) contents edible (‘seston’) across 3 seasons 2 climatic areas. The PUFA content increased until mesotrophic (TP: 11-20 μg L-1), after which provision respective declined. Seston FA, rather than condition or water temperature, primarily predicted changes while predictive power decreased with size. Despite increasing conditions, consistently their per unit biomass. results indicate that nutritional value was highest lakes, selectively retention body and/or were able convert endogenously meet size-specific demands, independent location time (season) measured (from oligo- eutrophic).

Language: Английский

Effect of Groundwater-Lake Interaction on Water and Salinity Balance for Lakes in Arid Regions DOI
Jie Chen, Ibrahim A. Ishag, Jonghee Yang

et al.

Springer hydrogeology, Journal Year: 2025, Volume and Issue: unknown, P. 97 - 113

Published: Jan. 1, 2025

Language: Английский

Citations

0
Trends in remote sensing of water quality parameters in inland water bodies: a systematic review DOI Creative Commons

Sinesipho Ngamile,

Sabelo Madonsela, Mahlatse Kganyago

et al.

Frontiers in Environmental Science, Journal Year: 2025, Volume and Issue: 13

Published: March 3, 2025

Monitoring water quality is crucial for sustainable management and meeting the United Nations Sustainable Development Goals. Urbanisation, agricultural practices, industrial activities, population growth increase presence of biological, chemical physical properties in bodies. Traditional monitoring methods (laboratory situ measurements) are limited spatially, temporarily costly. Satellite remote sensing has been shown to provide a systematic, cost-effective, near-real-time alternative. This paper analysed 142 peer-reviewed articles published between 2002 2024 from Web Science Scopus databases. The final included review were achieved through PRISMA flowchart. revealed that low-resolution sensors with long-term records, such as MODIS, commonly applied study large lakes. In contrast, Landsat-8 Sentinel-2 both lakes dams. These contain necessary spectral regions quality, where it was 500–600 nm region critical chlorophyll assessment, while 640–670 used turbidity. Secchi disk depth total suspended solids assessed using 860–1040 1570–1650 nm. Water research also focused on countries China, India, Brazil, South Africa, an emphasis optically active parameters. There is, however, non-optically parameters, nitrogen, phosphorus, temperature, especially small inland Therefore, there need more these areas, direct indirect parameter estimation integration machine learning algorithms.

Language: Английский

Citations

0
Distribution Characteristics and Driving Mechanisms of Organic Matter in Sediment of Lakes in China: A Review DOI Open Access
Chun Zhao,

Fuyuan Ran,

Sihong Liu

et al.

Water, Journal Year: 2025, Volume and Issue: 17(9), P. 1294 - 1294

Published: April 26, 2025

Sediment is a core part of lake ecosystems, and its organic matter (OM) content key indicator ecological health regional carbon cycling. OM provides nutrients for phytoplankton algae in water, thereby influencing the degree eutrophication. However, excessively high may trigger water eutrophication, alter sediment’s physical chemical properties, ultimately threaten stability ecosystems. This study innovatively selected Poyang Lake, Taihu Qinghai Hulun Lake from China’s four major geographical regions to systematically investigate sediments’ content, sources, distribution characteristics at different times. The results showed that sediments lakes varied significantly was influenced by multiple factors, such as watershed characteristics, eutrophication levels, human activities, climate change. characterized levels agricultural activities urbanization within their basins, exhibit significant fluctuations with total (TOC) ranging 0.35% 2.9% 0.7% 2.4%, respectively. In contrast, natural conditions policies, show relatively stable TOC 1.3% 2.75% 1.25% 3.58%, By analyzing combining methods carbon, nitrogen isotopes, C/N ratios, it possible effectively assess lakes, provide critical data support pollution control, play role cycle management.

Language: Английский

Citations

0
The first survey of legacy and emerging per- and polyfluoroalkyl substances (PFAS) in Hulun Lake, China: Occurrence, sources, and environmental impacts DOI Creative Commons
Jie Li, Xinlei Li,

Yi Zhu

et al.

Emerging contaminants, Journal Year: 2024, Volume and Issue: 11(1), P. 100431 - 100431

Published: Nov. 6, 2024

Language: Английский

Citations

3
Remote Sensing Estimation of CDOM and DOC with the Environmental Implications for Lake Khanka DOI Creative Commons

Sining Qiang,

Kaishan Song, Yingxin Shang

et al.

Remote Sensing, Journal Year: 2023, Volume and Issue: 15(24), P. 5707 - 5707

Published: Dec. 13, 2023

Chromophoric dissolved organic matter (CDOM) is a significant contributor to the biogeochemical cycle and energy dynamics within aquatic ecosystems. Hence, implementation of systematic comprehensive monitoring governance framework for CDOM in inland waters holds importance. This study conducted retrieval Lake Khanka. Specifically, we use GBDT (R2 = 0.84) algorithm which performed best retrieving levels an empirical relationship based on situ data between carbon (DOC) indicate distribution DOC indirectly. The performance CDOM-DOC scheme was reasonably good, achieving R2 value 0.69. algorithms were utilized analysis Sentinel-3 datasets from period 2016 2020 potential factors that contributed sources DOM also analyzed with humification index (HIX). (HIX chemical oxygen demand (COD)) indicated remote sensing application water quality management. An our findings suggests Great Khanka superior Small Moreover, diverse exhibits pattern where concentrations are generally higher along shoreline compared center lake. Efficient measures should be promptly implemented safeguard resources international boundary lakes such as systems including distribution, sources, management would essential resource protection government

Language: Английский

Citations

9
Assessing the effectiveness of Ecological Conservation Red Line for mitigating anthropogenic habitat degradation in river corridors DOI Creative Commons
Yangyang Gu,

Naifeng Lin,

Bingshuai Cao

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110742 - 110742

Published: Aug. 10, 2023

The ecological conservation red line (ECRL) framework plays an increasingly important role in biodiversity practices China. Following the implementation of ECRL, it is essential to systematically assess effectiveness this national policy mitigating negative impacts human disturbances on habitat quality at landscape and regional levels. Combined with remote sensing ground survey data, Integrated Valuation Ecosystem Services Trade-off (InVEST) model was used evaluate impact six major anthropogenic activities, built-up land, roads, mining crop water pollution, grazing, degradation two grassland river corridors (Kherlen River corridor Wuerxun corridor) Northeastern Then, different management scenarios assessed based ECRL framework. Our findings indicated that over 80% attributed grazing followed by pollution. Built-up land played minor roles causing degradation. Comparing scenario no scenario, Kherlen reduced 17.86%, improved 11.11%. Similarly, corridor, compared priority 69.23%, 2.38% scenario. Moreover, optimized including prohibition, enclosure, restoration habitats, further both corridors, resulting a 12.70% improvement for 3.57% corridor. work provides quantitative optimizing measures ECRL.

Language: Английский

Citations

8
Leveraging Bayesian network to reveal the importance of water level in a shallow lake ecosystem: A study based on Paleo-diatom and fish community DOI
Yuqi Huang, Yu Li, Ying Guo

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 930, P. 172341 - 172341

Published: April 18, 2024

Language: Английский

Citations

2
Recognizing the variation of DNA-P during and after the algal bloom in lake Hulun DOI

Wanchang Ding,

Guoxi Wang,

Haoyu Ren

et al.

Chemosphere, Journal Year: 2023, Volume and Issue: 343, P. 140293 - 140293

Published: Sept. 25, 2023

Language: Английский

Citations

4
Untangling the coupling effect of water quality and quantity on lake algal blooms in Lake Hulun from a dual perspective of remote sensing and sediment cores DOI
Hao Zhang, Yu Li, Bo Yao

et al.

Journal of Hydrology, Journal Year: 2024, Volume and Issue: unknown, P. 132141 - 132141

Published: Oct. 1, 2024

Language: Английский

Citations

1
Monitoring of Optically Active Constituents (OACs) in the Southern Caspian Sea: Concurrent Match-up Between In-Situ and Satellite Observations DOI Open Access
Mehdi Gholamalifard, Bonyad Ahmadi, Maryam Naghdi

et al.

Ecologica Montenegrina, Journal Year: 2024, Volume and Issue: 76, P. 168 - 186

Published: Dec. 12, 2024

Field sampling for this research was conducted in the Southern Caspian Sea with careful planning to ensure broad spatial coverage and high-quality data collection. Sampling stations along each transect were spaced 4 km apart, adjacent transects separated by 10 km. Six cruises summer of 2011 under varying environmental conditions provided a representative dataset marine ecosystem. Key bio-optical components, including Colored Dissolved Organic Matter (CDOM) absorption, Chlorophyll-a concentration (Chl-a), turbidity, analyzed. CTD sensors (Idronaut OCEAN SEVEN 316) used measure physico-chemical parameters such as salinity, temperature, dissolved oxygen, while surface water samples collected laboratory analysis. CDOM absorption measured using PERKIN ELMER Lambda 25 spectrophotometer, fitted an exponential function calculate like spectral slope (S) aCDOM(375). In situ Chl-a measurements taken Seapoint Chlorophyll Fluorometer, turbidity assessed Turbidity Meter. Higher values aCDOM(375) (ranging from 0.38–3.52 m⁻¹) observed at nearshore stations, indicating significant freshwater influence. Linear regression analysis showed weak inverse relationship between salinity (r = -0.08; R² 0.007), suggesting minimal impact on variability. The match-up revealed that organic matter products tended underestimate values, chlorophyll overestimated satellite data. lowest mean absolute error found (0.84). variability components highlights influence inputs processes. correlation suggests other factors, terrestrial biological activity, may affect variations region.

Language: Английский

Citations

1