Article
Biodiversity Conservation
Qing Chen, Jian Zhao, Qiang Gao, HaiXia Liu, XueMei Han
Summary: A new assessment method for lake eutrophication, the Trophic State Footprint Index (TFI), is proposed based on lake-specific and segmented data, which provides a concise and accurate way to evaluate the trophic status of each lake. This method has been proven effective in Dianchi Lake of China and is simpler and easier to conduct than traditional methods.
ECOLOGICAL INDICATORS
(2021)
Article
Water Resources
Alex Saturday, Thomas J. Lyimo, John Machiwa, Siajali Pamba
Summary: The study assessed the variations in the trophic state condition of Lake Bunyonyi over a period of one year. The results showed that the lake was eutrophic in both dry and wet seasons, possibly due to nutrients inflow from farmlands. The study recommends the development of guidelines for trophic status monitoring of the lake.
APPLIED WATER SCIENCE
(2023)
Article
Biodiversity Conservation
Andrzej S. Rybak
Summary: Mass occurrences of green algae Ulva in the form of algal blooms are often associated with high concentrations of biogens in water. River ecosystems in Europe are monitored based on aquatic plants, with Ulva macroalgae populations considered good indicators for eutrophic waters. U. pilifera has been shown to be a suitable bioindicator for eutrophic waters, particularly in ponds.
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Sciences
John K. Pearman, Susanna A. Wood, Marcus J. Vandergoes, Javier Atalah, Sean Waters, Janet Adamson, Georgia Thomson-Laing, Lucy Thompson, Jamie D. Howarth, David P. Hamilton, Xavier Pochon, Laura Biessy, Katie A. Brasell, Jenny Dahl, Riki Ellison, Sean J. Fitzsimons, Henry Gard, Tania Gerrard, Rose Gregersen, McKayla Holloway, Xun Li, David J. Kelly, Reece Martin, Kiely McFarlane, Nicholas P. McKay, Adelaine Moody, Chris M. Moy, Sebastian Naeher, Rewi Newnham, Russleigh Parai, Mailys Picard, Jonathan Puddick, Andrew B. H. Rees, Lizette Reyes, Marc Schallenberg, Claire Shepherd, Julia Short, Kevin S. Simon, Konstanze Steiner, Charlotte Sunde, Marianna Terezow, John Tibby
Summary: Efficient monitoring methods for lakes are necessary for proactive protection and management. Using bacterial communities in lake surface sediments provides a rapid and cost-effective way to assess trophic states.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Ivo Pinto, Sandra Nogueira, Sara Rodrigues, Nuno Formigo, Sara C. C. Antunes
Summary: This study revealed the importance of zooplankton as a bioindicator for assessing water quality in reservoirs. The current monitoring criteria are insufficient for a comprehensive evaluation of ecological status. By analyzing the zooplankton community, it is possible to accurately determine the water quality and different metrics provide valuable information for assessing water quality status.
Article
Environmental Sciences
Ranu Jajo Laishram, Gyanendra Yumnam, Wazir Alam
Summary: This study assesses the ecohydrogeochemical status of Loktak Lake, the largest freshwater lake in Northeastern India, based on water quality parameters, hydrogeochemistry, water quality indices (WQI), and trophic state index (TSI). The study findings indicate that the lake water exceeds the permissible limits set by the WHO and BIS for parameters such as pH, turbidity, dissolved oxygen, biological oxygen demand, iron, fluoride, and coliform concentrations. The water hardness is generally soft, but some samples are moderately hard. The WQI values show variations and indicate poor to good water quality, suitable for agricultural use. The TSI assessment reveals oligotrophic and mesotrophic conditions during different seasons.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Multidisciplinary Sciences
Luis J. Gilarranz, Anita Narwani, Daniel Odermatt, Rosi Siber, Vasilis Dakos
Summary: Lakes are important indicators of global change, and understanding their stability and dynamics is crucial for studying ecosystem changes. In this study, we conducted a global assessment of regime shifts and stability in lakes, finding that some lakes exhibit tipping points and instability, which are influenced by population density and economic development.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Environmental Sciences
Roohollah Noori, Elmira Ansari, Yong-Wook Jeong, Saber Aradpour, Mohsen Maghrebi, Majid Hosseinzadeh, Sayed M. Bateni
Summary: The study found that the Sabalan dam reservoir in northwest Iran is facing eutrophication issues primarily due to phosphorus and nitrogen enrichment. The reservoir is classified as hypereutrophic, with nutrient levels showing significant variations throughout the year. Water residence time plays a crucial role in controlling eutrophication in the reservoir, with longer residence times contributing to nutrient accumulation.
Article
Environmental Sciences
Konstantinos Stefanidis, George Varlas, George Papaioannou, Anastasios Papadopoulos, Elias Dimitriou
Summary: This study utilized data from Copernicus Lake Water products, Hydrological Predictions for the Environment (HYPE), and ERA5-Land data repositories to create a large longitudinal dataset for 22 European lakes. The analysis revealed seasonal variations in water turbidity and trophic state index (TSI), and identified the influence of environmental factors on these parameters.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Analytical
Gehan Mohamed El Zokm, Mona Mohamed Ismail, Abeer Abd El Mohsen El-Sayed, Essam Khamis El-Shorbagi, Mohamed Attia Sheradah
Summary: This study investigated the mobility of carbohydrates, proteins, and phenol in Lake Mariout and found that the lake is experiencing ecological risks due to organic pollution and wastewater discharge.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Environmental Sciences
Baisakhi Chakraborty, Sambhunath Roy, Amit Bera, Partha Pratim Adhikary, Biswajit Bera, Debashish Sengupta, Gouri Sankar Bhunia, Pravat Kumar Shit
Summary: The sudden lockdown has had a significant impact on the water quality of the Damodar River, with noticeable differences in water quality indicators between the lockdown and pre-lockdown periods. Nutrient supplies in the river have decreased during the lockdown, leading to improvements in the eutrophic condition of certain stretches.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Chung-Chi Chen, Jih-Terng Wang, Chih-Yen Huang, Hung-Yen Hsieh, Kwee Siong Tew, Pei-Jie Meng
Summary: Algal blooms have had significant global impacts on marine ecosystems, aquaculture, recreational activities, and human health. Therefore, there is an urgent need for indices to evaluate seawater nutritional status for predicting algal blooms. This study developed a real-time trophic state index (RTSI) using a long-term water quality monitoring dataset from Dapeng Bay, Southern Taiwan. The RTSI, which is simple and does not require complicated measurements, showed sensitivity to changes in seawater quality and can aid managers in monitoring and managing algal blooms.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Vitoria Rovel da Silveira, Marlon Heitor Kunst Valentini, Gabriel Borges dos Santos, Willian Cezar Nadaleti, Bruno Muller Vieira
Summary: The Mirim Lagoon and the Sao Goncalo Channel are affected by agricultural activities and untreated effluent discharge, causing deterioration of water resources. However, most sampling points showed good water quality and trophic state indices.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Engineering, Chemical
Beyhan Tas
Summary: Lake Gokgol, located in Ordu, Turkey, is a small lake with a tectonic origin. The lake has poor acidic character, low dissolved oxygen content, and high mineral concentration. During the summer months, Cyanobacteria and Bacillariophyta are the dominant phytoplankton species in the lake.
DESALINATION AND WATER TREATMENT
(2021)
Article
Environmental Sciences
Hagar M. M. Mohamed, Magdy T. T. Khalil, Ahmed M. M. El-Zeiny, Nehad Khalifa, Sameh B. El Kafrawy, Wiam W. M. Emam
Summary: A multidisciplinary approach was used to evaluate the trophic state and potential productivity of Qaroun Lake. The results showed that the lake is in a hypereutrophic state with high potential productivity. The study recommends the use of the TMI model to monitor changes in the lake's productivity.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Biochemical Research Methods
Riza Akgul, Fusun Akgul, Inci Tuney Kizilkaya
Summary: Members of the Scenedesmaceae family have the most widely used microalgae species in algal biotechnology studies due to their fast growth rate, high nutritional content, and lipid accumulation under nutrient-limiting conditions. The growth and biochemical composition of Desmodesmus communis in response to different phosphorus concentrations were investigated. The study found that fatty acid and amino acid compositions changed according to phosphorus concentration, with PUFAs concentrations higher than SFAs and MUFAs.
PREPARATIVE BIOCHEMISTRY & BIOTECHNOLOGY
(2021)
Article
Fisheries
Fethi Bengil, Sinan Mavruk, Zafer Kizilkaya, Elizabeth G. T. Bengil, Vahit Alan, Inci Tuney Kizilkaya
Summary: This study compared the performance of satellite and model-based seawater temperature data for different temporal composites and depths, finding that modeling datasets provided more reliable results for in-situ conditions in coastal regions than satellite datasets. Monthly datasets were found to be more effective in providing descriptive values for long-term studies.
TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2021)
Article
Biology
Alperen Ertas, Bulent Yorulmaz, Atakan Sukatar
Summary: This study aimed to determine the water quality of Balaban Stream and compare the performance of different indices. By using biotic and diversity indices based on benthic macroinvertebrates, the water quality of Balaban Stream was found to be unpolluted-slightly polluted. The BMWP-O, BMWP-S, BMWP-H, ASPT-O, ASPT-H, and ASPT-C indices were found to be more suitable for determining the water quality of Balaban Stream compared to the SI, FBI, and BBI indices.
Article
Environmental Sciences
Md Refat Jahan Rakib, Alperen Ertas, Tony R. Walker, Michael J. Rule, Mayeen Uddin Khandaker, Abubakr M. Idris
Summary: Macro-sized marine litter was collected, characterized, and enumerated along the Cox's Bazar Coast in Bangladesh. The most abundant litter items were plastic polythene bags, and the cleanliness of beaches was evaluated using the clean-coast index. The study revealed that marine litter pollution poses a potential threat to coastal and marine environments.
MARINE POLLUTION BULLETIN
(2022)
Article
Genetics & Heredity
Riza Akgul, Hande Morgil, Inci Tuney Kizilkaya, Ehsan Sarayloo, Gul Cevahir, Fusun Akgul, Ibrahim Halil Kavakli
Summary: In this study, the production of fatty acids in Neochloris aquatica under different nitrate concentrations and growth phases was characterized at the transcriptomics and biochemical levels. The results showed that N. aquatica primarily produced saturated fatty acids under limiting nitrate concentrations, suitable for biodiesel production, and produced polyunsaturated fatty acids under excess nitrate concentrations, which have nutritional value as food supplements. RNA-seq analysis identified genes and pathways affected by nitrate concentrations during the three growth phases. Genes involved in saturated fatty acid production were upregulated under limiting nitrogen conditions, while genes responsible for polyunsaturated fatty acid production were upregulated under excess nitrogen conditions. Additionally, more differentially expressed genes were observed during the logarithmic growth phase, and a relatively steady trend was observed during the transition from the logarithmic phase to the stationary phase under limiting and excess nitrogen conditions. These findings provide insights into the developmentally important genes and biological processes involved in biomass and lipid production in different growth phases of N. aquatica.
FUNCTIONAL & INTEGRATIVE GENOMICS
(2022)
Article
Plant Sciences
Pilar Diaz-Tapia, Inci Tuney-Kizilkaya, Ergun Taskin
Summary: Species discovery is enhanced by the use of molecular tools and exploration of understudied habitats. Recent surveys in Bafa Lake, Turkey, led to the discovery of two new species: Lophosiphonia obscura and P. sukatarii sp. nov. The distribution of P. sukatarii sp. nov. is likely wide, as it was also found in algal turfs on the Canary Islands.
Article
Biodiversity Conservation
Alperen Ertas, Victor Vasques Ribeiro, Italo Braga Castro, Ferah Sayim
Summary: The Aegean Sea is highly contaminated by marine litter, with plastic being the most abundant material. The Turkish Aegean Region, specifically cakalburnu Lagoon coast, is affected by mixed packaging, domestic waste, and fisheries activities. The abundance of marine litter varies with seasons, and the beach cleanliness is consistently classified as dirty.
JOURNAL OF COASTAL CONSERVATION
(2022)
Article
Environmental Sciences
Amalia Grau, Antonio Villalba, Jose I. Navas, Beatriz Hansjosten, Jose M. Valencia, Jose R. Garcia-March, Patricia Prado, Guillermo Follana-Berna, Titouan Morage, Maite Vazquez-Luis, Elvira alvarez, Pantelis Katharios, Christina Pavloudi, Elisabet Nebot-Colomer, Jose Tena-Medialdea, Monserrat Lopez-Sanmartin, Claire Peyran, Hrvoje Cizmek, Georgia Sarafidou, Yiannis Issaris, Inci Tueney-Kizilkaya, Salud Deudero, Serge Planes, Gaetano Catanese
Summary: This study investigates the role of various pathogens in the mass mortality event (MME) of the fan mussel Pinna nobilis in the Mediterranean Sea. The researchers found that infection by Haplosporidium pinnae played a major role in the onset and spread of the MME, while infection with mycobacteria was independent of the MME and associated with host size. Gram (-) bacteria were not associated with the MME.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biodiversity Conservation
Joaquim Garrabou, Daniel Gomez-Gras, Alba Medrano, Carlo Cerrano, Massimo Ponti, Robert Schlegel, Nathaniel Bensoussan, Eva Turicchia, Maria Sini, Vasilis Gerovasileiou, Nuria Teixido, Alice Mirasole, Laura Tamburello, Emma Cebrian, Gil Rilov, Jean-Baptiste Ledoux, Jamila Ben Souissi, Faten Khamassi, Raouia Ghanem, Mouloud Benabdi, Samir Grimes, Oscar Ocana, Hocein Bazairi, Bernat Hereu, Cristina Linares, Diego Kurt Kersting, Graciel la Rovira, Julia Ortega, David Casals, Marta Pages-Escola, Nuria Margarit, Pol Capdevila, Jana Verdura, Alfonso Ramos, Andres Izquierdo, Carmen Barbera, Esther Rubio-Portillo, Irene Anton, Paula Lopez-Sendino, David Diaz, Maite Vazquez-Luis, Carlos Duarte, Nuria Marba, Eneko Aspillaga, Free Espinosa, Daniele Grech, Ivan Guala, Ernesto Azzurro, Simone Farina, Maria Cristina Gambi, Giovanni Chimienti, Monica Montefalcone, Annalisa Azzola, Torcuato Pulido Mantas, Simonetta Fraschetti, Giulia Ceccherelli, Silvija Kipson, Tatjana Bakran-Petricioli, Donat Petricioli, Carlos Jimenez, Stelios Katsanevakis, Inci Tuney Kizilkaya, Zafer Kizilkaya, Stephane Sartoretto, Rouanet Elodie, Sandrine Ruitton, Steeve Comeau, Jean-Pierre Gattuso, Jean-Georges Harmelin
Summary: This study reveals that the Mediterranean Sea has experienced exceptional thermal conditions, leading to five consecutive years of mass mortality events of marine organisms. The occurrence of these events is significantly related to the heat exposure from marine heatwaves observed at the surface and depths. The Mediterranean Sea is facing an unprecedented threat to its ecosystem's health and functioning due to the accelerated ecological impacts of marine heatwaves.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Ecology
Alperen Ertas, Merve Yasarturk, Bulent Yorulmaz, Ferah Sayim
Summary: Benthic macroinvertebrates can provide an integrated picture of environmental changes and assess the health of freshwaters. In Ilke Stream, 33 taxa were identified. 92% of the total variance among water quality parameters is accounted for by nine main components.
CONTEMPORARY PROBLEMS OF ECOLOGY
(2022)
Article
Plant Sciences
Dilek Unal, Rafig Gurbanov, Gulcin Sevim, Gizem Samgane, Gokay Varis, Fadime Ozdemir-Kocak, Inci Tuney-Kizilkaya
Summary: This study investigated the use of brown alga extract from Stypopodium schimperi as a biofertilizer. Algae are important bio-stimulants that can enhance plant growth and development. The study also analyzed the composition and phenolic content of S. schimperi and its effects on seed germination and plant growth.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Biology
Alperen Ertas, Selda Ozturk, Merve Yasarturk, Bulent Yorulmaz
Summary: Conserving freshwater resources in West Anatolia requires the use of biomonitoring tools to assess the ecological status of surface water bodies that are under threat from human pollution. This study focused on determining the water quality of Demirci Stream through the use of biotic indices. A total of seven sampling stations were chosen for this seasonal study. The Asterics software was used to calculate biotic and diversity index scores, while Redundancy Analysis (RDA) was utilized to reveal the relationship between macrobenthic orders and physicochemical variables. The results showed that sampling points 1, 2, 3, and 4 had good water quality, while sampling points 5, 6, and 7 were polluted. The SI, BMWP, ASPT, and BBI indices were found to be more suitable for assessing the water quality of Demirci Stream compared to the FBI index.
Article
Biodiversity Conservation
Inci Tuney-Kizilkaya, Elizabeth Grace Tunka Bengil
Summary: Morphological identification alone might not accurately distinguish between the critically endangered S. squatina and S. aculeata species of sharks and rays. This study compared morphological and molecular techniques for species identification, and found that both techniques should be used to ensure accurate taxonomical identification of shark species, especially the endangered ones.
JOURNAL OF WILDLIFE AND BIODIVERSITY
(2022)
Article
Agriculture, Multidisciplinary
Dilek Unal, Gulcin Sevim, Gokay Varis, Inci Tuney-Kizilkaya, Bengu Turkyilmaz Unal, Munir Ozturk
Summary: This study found that H. filicina extract can improve the tolerance of tomatoes to lead stress, reduce root growth inhibition, and protect plants from the toxic effects of metal accumulation in cells.
CROP & PASTURE SCIENCE
(2022)
Article
Marine & Freshwater Biology
Alperen Ertas, Tugba Boz, Inci Tuney Kizilkaya
Summary: The study aimed to identify the benthic macroinvertebrate fauna and physicochemical characteristics of Balaban Lake in Menderes, Izmir. A total of 25 taxa were classified, with the 2nd and 3rd stations being the most similar, followed by the 1st and 4th stations. Strong positive correlations were found between certain physicochemical factors and specific taxa, while a strong negative correlation was observed with another taxon. This is the first study on the benthic fauna of Balaban Lake, with all taxa recorded for the first time.
AQUATIC SCIENCES AND ENGINEERING
(2021)
