Article
Limnology
Adem Sezai Bozaoglu, Kemal Pala
Summary: This study investigates the selectivity of multifilament trammel nets in pearl mullet fishing in Lake Van. The results suggest that using a 24 mm mesh size in the nets yields the best catch performance.
INTERNATIONAL JOURNAL OF LIMNOLOGY
(2023)
Article
Ecology
Kai-jing Xin, Huang-yu Bao, Rong-hua Liang, Xiao-jia Tang, Na Guan, Yun Cao
Summary: This study investigated the effects of water level changes on the growth and physiology of Arundo donax var. versicolor. The results showed that under rising water level conditions, the morphological characteristics and chlorophyll content initially increased and then decreased. Moderate stress can promote the growth of A. donax var. versicolor, but excessive stress can lead to leaf yellowing, root shrinkage, and even death.
JOURNAL OF FRESHWATER ECOLOGY
(2023)
Article
Limnology
Daniel Ottmann, Tom J. Langbehn, Patricia Reglero, Diego Alvarez-Berastegui, Oyvind Fiksen
Summary: This study reveals the important impact of mesopelagic fish on the reproduction and offspring fitness of pelagic fish and suggests an evolutionary drive to synchronize spawning to the lunar cycle. The week before full moon is the most intensive spawning period for Atlantic bluefin tuna, consistent with predictions from a mechanistic model, which shows that spawning around full moon can significantly increase offspring fitness by reducing predation pressure from mesopelagic fish.
LIMNOLOGY AND OCEANOGRAPHY
(2023)
Article
Limnology
Nubia Franca da Silva Giehl, Marden Seabra Linares, Raphael Ligeiro, Nelson Silva Pinto, Marcos Callisto
Summary: This study evaluated the response of Nepomorpha diversity to habitat and ecological conditions and found that water quality and geomorphology were important factors determining assemblage diversity. Additionally, the study showed that Nepomorpha assemblages were sensitive to anthropogenic disturbances, suggesting their potential use as ecological indicators in biomonitoring studies.
Article
Ecology
Wenwen Xia, Xiaowen Lin, Xiaodong Wu, Xuguang Ge, Zhenni Gao, Zhenhua Sun, Rukeye Wushuer, Yeqing Liu
Summary: This study measured the contents of TN, TP, and OM in the sediment of the Dagang river, the largest inflowing river of Daye Lake, to assess sediment pollution. The results indicated severe pollution in the Dagang river with high levels of TN, TP, and OM. The source of dissolved OM was both exogenous and endogenous, and the correlation analysis suggested similar sources of nitrogen (N) and phosphorus (P). Targeted measures should be implemented to control nutrient input and reduce nutrient pollution, with a focus on OM pollution sources.
JOURNAL OF FRESHWATER ECOLOGY
(2023)
Article
Environmental Sciences
Sida Fu, Jie Li, Patrick Rioual, Jingkang Wang, Luo Wang
Summary: The grain-size distribution of lake sediments, which is closely related to the transport dynamics of clastic materials, is an important proxy for paleoclimate reconstruction. However, the presence of biogenic silica, especially diatom frustules, can bias the grain-size distribution of lake-sediment samples. This study evaluated the efficiency of removing diatoms using different concentrations and treatment durations of Na2CO3 solution, with and without sonication. The results show that a treatment with 2 mol L-1 Na2CO3 solution coupled with ultrasound vibrations for 4 h is the most effective method.
JOURNAL OF PALEOLIMNOLOGY
(2023)
Article
Limnology
Shao'e Sun, Zijie Mei, Zhongli Sha, Jing Wang, Nansheng Chen
Summary: This study reports the collection of a specimen belonging to the family Comatellinae from the Zhenbei Seamount in the South China Sea, which is identified as Palaeocomatella hiwia. It is the first record of P. hiwia from the China Sea and a detailed redescription is provided. Phylogenetic analyses based on genetic data indicate that P. hiwia is closely related to Aphanocomaster pulcher within the tribe Phanogeniini. The morphological features of P. hiwia also support its placement within the Phanogeniini tribe.
JOURNAL OF OCEANOLOGY AND LIMNOLOGY
(2023)
Article
Limnology
Jennifer Tolman, Dhwani Desai, Julie LaRoche
Summary: This study presents the construction, evaluation, and application of the OceansN CodeSet for the NanoString nCounter, which allows quantification of protein-coding genes involved in microbially mediated nitrogen cycle processes in the ocean. The OceansN CodeSet provides advantages in terms of reduced sample handling, elimination of amplification bias, minimal DNA sample requirements, and the ability to assess targets ranging from rare to abundant. When applied to North Atlantic environmental DNA samples, the OceansN CodeSet reveals temporal and spatial patterns in nitrogen assimilation, nitrification, and denitrification, as well as the abundance and distribution of nitrogen-fixing microorganisms.
LIMNOLOGY AND OCEANOGRAPHY-METHODS
(2023)
Article
Ecology
B. Reshma, B. Rahul, K. R. Sreenath, K. K. Joshi, George Grinson
Summary: This study analyzed the performance of Convolutional Neural Networks (CNN) in classifying underwater images at different taxonomic ranks. The results showed that deep learning techniques can accurately classify images to species and genus levels. The application of this technique can enhance data collection efficiency and quantity, facilitating the prediction and understanding of ecological responses to environmental changes.
Article
Environmental Sciences
C. A. T. Wilkins, K. M. Ruhland, A. M. Paterson, J. P. Smol
Summary: Cache Lake, located in Ontario, Canada, was subjected to a fertilizer experiment in 1946 and 1947, which had long-term effects on the lake's diatom communities. Despite returning to its original oligotrophic state, the lake's diatom composition never fully recovered from the experiment.
JOURNAL OF PALEOLIMNOLOGY
(2023)
Review
Environmental Sciences
Emmanuel Mignot, Nicolas Riviere, Benjamin Dewals
Summary: This article reviews the mathematical formulations of the depth-integrated advection-diffusion equation used for modeling scalar transport and mixing in shallow environmental flows. It also summarizes the main approaches developed to evaluate the diffusivity tensor in such models. The fragmentation of existing methodologies highlights a lack of scientific consensus, but promising approaches and possible paths for improvement are outlined.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Kristin B. Dobbin, Justin Mcbride, Gregory Pierce
Summary: Scholars and policy makers often advocate for drinking water system consolidation as a solution to address the challenges faced by small water systems and the inequalities in access to safe drinking water. However, our understanding of the actual occurrence and effects of consolidations is limited, and there are discrepancies between the theoretical claims and empirical findings. Additionally, the consolidation process seems to favor communities with more resources, highlighting the need for a deeper examination of the opportunities and limitations associated with consolidation.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Hu Liu, Chuandong Wu, Yang Yu, Wenzhi Zhao, Jintao Liu, Hailong Yu, Yanli Zhuang, Omer Yetemen
Summary: This study presents a novel model (SOFAR) to investigate the hydrological behavior of utility-scale solar farms (USFs) and explores their effects on soil erosion and hydrological connectivity. The results show that USFs significantly increase runoff and soil erosion rate, and hydrological connectivity is a critical indicator for sediment yield in USFs.
WATER RESOURCES RESEARCH
(2023)
Article
Limnology
Cheewarat Printrakoon, Boonsatien Boonsoong, Charinporn Homthong
Summary: This study investigated the habitat characteristics and population structure of R. parva in the Chao Phraya River, Thailand. The results showed that R. parva is a brackish species tolerant to low salinity and its distribution and density are regulated by salinity and water conductivity. The presence and abundance of R. parva are associated with the presence of two other species.
FUNDAMENTAL AND APPLIED LIMNOLOGY
(2023)
Article
Environmental Sciences
Haoqi Gai, Peijun Shi, Zhi Li
Summary: This study investigates the uncertainties in plant water source partitioning and recommends the best method using multiple tracers, xylem water deuterium bias correction methods, and mixing models. The results show that mixing models and tracers have the most influence on plant water source partitioning, while the deuterium bias correction method has negligible effect.
WATER RESOURCES RESEARCH
(2023)
Article
Engineering, Environmental
Senem Yazici Guvenc, Sinan Tunc
Summary: The aim of this study was to investigate the performance of advanced electrocoagulation (EC) process for the treatment of olive mill wastewater. Under optimum conditions, EC-PS and EC-PMS processes showed good efficiency in removing pollutants from the wastewater, but they were not sufficient to meet the discharge limits when used alone.
WATER ENVIRONMENT RESEARCH
(2023)
Article
Environmental Sciences
Yujie Zhuang, Xin Liu, Zengwei Yuan, Hu Sheng, Jianqi Gao
Summary: The estimation of water pollutant loads is crucial for water quality models and pollutant mitigation strategies. This study develops a process-based Water Pollutant Loads Tracking model and applies it to a rapidly urbanizing watershed in China. The results show that point sources and nonpoint runoffs are the main challenges for local water pollution control. The study's innovation lies in its high-resolution quantification of pollutant generation and tracing of the pathway from sources to recipient water bodies, demonstrating the model's effectiveness and broader applicability.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Hang Chen, Qifei Niu, Aida Mendieta, John Bradford, James McNamara
Summary: Hydrologic modeling is a useful approach for studying water partitioning in catchment systems. This study shows the importance of including subsurface heterogeneity in the modeling and proposes a method of incorporating geophysics-obtained subsurface structures. The results demonstrate that this geophysics-informed modeling approach fits field observations well and accurately quantifies key hydrologic fluxes in the catchment.
WATER RESOURCES RESEARCH
(2023)
Review
Limnology
Erin C. Seybold, Anna Bergstrom, C. Nathan Jones, Amy J. Burgin, Sam Zipper, Sarah E. Godsey, Walter K. Dodds, Margaret A. Zimmer, Margaret Shanafield, Thibault Datry, Raphael D. Mazor, Mathis L. Messager, Julian D. Olden, Adam Ward, Songyan Yu, Kendra E. Kaiser, Arial Shogren, Richard H. Walker
LIMNOLOGY AND OCEANOGRAPHY LETTERS
(2023)
Article
Environmental Sciences
L. R. Lokin, J. J. Warmink, S. J. M. H. Hulscher
Summary: River dunes, dynamic bedforms in the river bed, can limit navigable depths and increase bed roughness. Predicting the navigable depth and planning maintenance dredging can be done with a numerical dune development model. Different sediment transport models were used to study the effect on dune shape and propagation. The models were able to simulate dune propagation, with shear stress-based models reshaping the dunes. The models reproduced observed dune celerity and realistic dune shapes for low and median discharges.
WATER RESOURCES RESEARCH
(2023)
