Article
Automation & Control Systems
Hoosang Lee, Daehyeon Jeong, Hongje Yu, Jeha Ryu
Summary: Fisheries are crucial for protein supply in the economy. Using autonomous underwater vehicles (AUVs) to detect damaged fishnets offers an efficient and safe solution in turbid underwater environments. This study proposes an AUV pose control strategy based on image mean gradient feature and a convolutional neural network (CNN) combined with a controller, enabling clear net images acquisition and damage inspection in turbid water.
INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS
(2022)
Article
Environmental Sciences
Yue Han, Tarek N. Aziz, Dario Del Giudice, Nathan S. Hall, Daniel R. Obenour
Summary: Nutrient reductions are more critical than changes in mixing or background turbidity in controlling cyanobacteria in shallow eutrophic freshwater systems. Both models explain around 60% of the variability in chlorophyll-a, but the mechanistic model is more robust and provides a more comprehensive assessment of algal drivers.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Yong Luo, Lintao Huang, Xinming Lei, Xiaolei Yu, Chengyue Liu, Lei Jiang, Youfang Sun, Meng Cheng, Jianfeng Gan, Yuyang Zhang, Guowei Zhou, Sheng Liu, Jiansheng Lian, Hui Huang
Summary: Recent research suggests that underwater light availability plays a crucial role in the growth and distribution of reef-building corals exposed to elevated suspended solids. This study investigated the variations in light availability, coral assemblages, and suspended solids concentrations and composition on the Luhuitou fringing reef in Sanya, China. The results showed that light availability is related to the distribution and growth of different coral species, and that the organic fraction of suspended solids plays a significant role in light attenuation.
MARINE ENVIRONMENTAL RESEARCH
(2022)
Article
Multidisciplinary Sciences
Raluca Ioana Bancila, Florina Stanescu, Rodica Plaiasu, Ioana Nae, Diana Szekely, Sabina E. Vlad, Dan Cogalniceanu
Summary: The experiment demonstrated that fire salamander larvae exhibit adaptability to limited food supply and absence of light, allowing successful development and maintenance of metamorphic size, indicating that phenotypic plasticity plays a critical role in overcoming altered environmental conditions.
Article
Agricultural Economics & Policy
Marie L. Spiker, Joel Welling, Daniel Hertenstein, Suvankar Mishra, Krishna Mishra, Kristen M. Hurley, Roni A. Neff, Jess Fanzo, Bruce Y. Lee
Summary: The study assessed the impact of increased production of certain vegetables on vegetable supply chains in Odisha, India. The results showed that the increase in production did not significantly improve vegetable availability for consumers, and in some cases, it worsened demand fulfillment. Increasing vegetable production also led to disproportionately high rates of postharvest loss, with the majority of losses occurring during wholesale-to-wholesale trade.
Article
Marine & Freshwater Biology
Natalie Travaglione, Richard Evans, Molly Moustaka, Michael Cuttler, Damian P. Thomson, James Tweedley, Shaun Wilson
Summary: This study assessed the variation in heterotrophy of three coral genera (Acropora spp., Porites spp., and Platygyra spp.) among different turbidity levels in the Dampier Archipelago, Western Australia. The results showed that heterotrophy increased in all three coral genera in highly turbid environments. Porites spp. preferred heterotrophy across all turbidity levels, while Platygyra spp. and Acropora spp. showed lower heterotrophy in sites with lower turbidity. This suggests that some scleractinian corals can adjust their feeding strategies based on turbidity levels.
Article
Environmental Sciences
Lei Chen, Mingpeng Wang, Yujie Feng, Xiaoyu Xu, Xiaobo Luo, Zhaojie Zhang
Summary: Xanthomonas, a common plant pathogen found in biocontaminated bioreactors, was found to exhibit characteristics such as reduction of metal Fe (III) and decolorization of methyl orange in vitro. This microorganism was able to generate bioelectricity and had two extracellular electron transfer pathways, with the indirect transfer method being dominant and faster than direct transfer. The study highlights a novel anaerobic mechanism for Xanthomonas survival during wastewater treatment and suggests potential strategies for preventing its growth.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Horticulture
Laszlo Sipos, Laszlo Balazs, Geza Szekely, Andras Jung, Szilvia Sarosi, Peter Radacsi, Laszlo Csambalik
Summary: Basil is a popular crop worldwide with high profitability, and studies have shown that light plays a crucial role in its growth and quality, with energy-efficient LED light sources being recommended. Promising specialized research is expected to lead to wider application of high-tech production systems for basil in the future.
SCIENTIA HORTICULTURAE
(2021)
Article
Forestry
Ieva Bebre, Hannes Riebl, Peter Annighoefer
Summary: Light availability is crucial for seedling growth, with taller individuals having a competitive advantage. The experiment showed that seedlings allocated more growth to height with increasing light availability, and mixtures of functionally dissimilar species are likely to produce higher biomass.
Article
Cell Biology
Shaobo Ruan, Nina Erwin, Mei He
Summary: Using phototherapy-based light induction, cellular production of dendritic cell derived extracellular vesicles (DEVs) can be significantly enhanced while maintaining good quality and immune function. Light-promoted DEVs possess excellent immune function and biocompatibility, making them ideal therapeutic platforms.
JOURNAL OF EXTRACELLULAR VESICLES
(2022)
Article
Environmental Sciences
Sicheng Xiong, Xuesong Cao, Hao Fang, Huiyuan Guo, Baoshan Xing
Summary: This study demonstrated that EPS from Chlorella pyrenoidosa can readily reduce Ag+ to AgNPs, with visible light accelerating the photoreduction process. The presence of chloride ions (Cl-) shortened the duration of photoreduction.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agronomy
Hitoshi Moro, Ho-Dong Park, Takashi Kunito
Summary: In soils with different phosphorus availability, barley roots primarily absorbed inorganic phosphorus when phosphorus availability was high, while they hydrolyzed organic phosphorus (primarily phytate-like P) to meet phosphorus demand when availability was low.
Article
Environmental Sciences
Robyn E. Jones, Richard K. F. Unsworth, Jon Hawes, Ross A. Griffin
Summary: The study found that using underwater cameras equipped with CLOCs can effectively assess marine benthic biodiversity in turbid environments by enhancing image quality, seabed visibility, and habitat identification. Additionally, the use of CLOCs can reduce sampling effort and increase taxonomic richness, improving the overall quality of data collected for informed management decisions.
AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
(2021)
Article
Plant Sciences
Shuang-Guo Zhu, Zheng-Guo Cheng, Hai-Hong Yin, Rui Zhou, Yu-Miao Yang, Jing Wang, Hao Zhu, Wei Wang, Bao-Zhong Wang, Wen-Bo Li, Hong-Yan Tao, You-Cai Xiong
Summary: The tradeoff between facilitation and competition in a maize-grass pea intercropping system was found to be driven by rhizospheric interactions, and the intensity and type of interaction varied depending on resource availability. Positive plant-plant interactions were observed under all environmental conditions, with higher total yield and biomass net effect. Maize growth was consistently facilitated, while the facilitation of grass pea yield and biomass shifted with different stressors, such as low soil P and moisture conditions.
Article
Limnology
Joanne E. Hopkins, Matthew R. Palmer, Alex J. Poulton, Anna E. Hickman, Jonathan Sharples
Summary: The article examines the balance of physical and biological processes governing phytoplankton growth rates and biomass accumulation during the winter-spring transition, with a focus on the depth variability of the actively mixing surface layer as the leading control factor. This emphasizes the importance of accurate turbulent mixing parameterizations in coupled hydrodynamic-ecosystem models.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Fisheries
Lenka Kajgrova, Petr Blabolil, Borek Drozd, Koushik Roy, Jan Regenda, Michal Sorf, Jaroslav Vrba
Summary: This study revealed the negative ecological and production impacts of the invasive omnivorous fish species topmouth gudgeon on eutrophic fishponds in South Bohemia, Czechia. It suggests that eradicating undesirable fish is an effective tool in restoring fishpond ecosystems and improving their ecological status.
Article
Ecology
Klara Rehakova, Katerina Capkova, Jan Altman, Martin Dancak, L'ubos Majesky, Jiri Dolezal
Summary: Soil phototrophic microbes are crucial for ecosystem functions, with diversity and abundance influenced by soil chemistry and vegetation cover. Higher diversity and biovolume are found in treeless savanna and afroalpine vegetation, while lower values are observed in mid-elevation tropical forests. The findings highlight the importance of ecological filters in shaping phototrophic microbial communities in tropical soils.
Article
Microbiology
Karel Simek, Indranil Mukherjee, Jiri Nedoma, Caio Cesar Pires Paula, Jitka Jezberova, Dagmara Sirova, Jaroslav Vrba
Summary: The study found that aplastidic cryptophytes and ciliates are major protistan bacterivores in hypertrophic freshwater lakes, with HNF contributing more to total protist-induced bacterial mortality rates. During summer phytoplankton blooms, Kinetoplastea also play an important role in consuming bacteria.
ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Limnology
Jana Petruzelova, Jindriska Bojkova, Jan Sychra, Vanda Sorfova, Vendula Polaskova, Jaroslav Vrba
Summary: This study examines the species composition and richness of littoral macroinvertebrates in acidified montane standing waters and highlights the complex effects of acidification and local environmental conditions on these communities. The presence of fish stock and local habitat characteristics were found to significantly impact the abundance and diversity of macroinvertebrates in acidified waterbodies.
JOURNAL OF LIMNOLOGY
(2022)
Article
Marine & Freshwater Biology
Selma de Donnova, Jana Petruzelova, Katerina Kintrova, Vanda Sorfova, Vendula Polaskova, Michal Straka, Jaroslav Vrba, Jindriska Bojkova
Summary: This study documents the short-term macroinvertebrate colonisation in a near-natural environment after stream restoration. The restored streams were rapidly colonised and reached reference levels in terms of species richness and composition. The distance from upstream colonisation source and restoration method had little effect on recovery.
Article
Limnology
Jan Fott, Linda Nedbalova, Marek Brabec, Radka Kozakova, Klara Rehakova, Josef Hejzlar, Michal Sorf, Jaroslav Vrba
Summary: This study investigates the seasonal succession of plankton communities in freshwater temperate lakes during the winter season. The results show that in warm monomictic lakes, there is a significant increase in phytoplankton chlorophyll a concentrations after the winter solstice and it continues throughout the total circulation and/or unstable inverse stratification period. Solar radiation and water temperature have positive effects on chlorophyll a concentrations, while water age has a negative effect. On the other hand, zooplankton density and ice cover effects are not significant.
Article
Environmental Sciences
Anna Pavlovna Ivanova, Jaroslav Vrba, Jan Potuzak, Jan Regenda, Otakar Strunecky
Summary: Fishponds with small water volume, high fish abundance, and wide range of nutrient concentrations serve as suitable models for ecological studies. The composition of phytoplankton is primarily driven by the limitation of mineral nitrogen, resulting in cyanobacterial dominance.
Article
Green & Sustainable Science & Technology
Koushik Roy, Jaroslav Vrba, Lenka Kajgrova, Jan Mraz
Summary: The present work aimed to understand the nutrient enrichment and eutrophication caused by carp farming in temperate shallow-lake ecosystems. The study found that different feeding characteristics and metabolic activities of carp had significant effects on environmental nutrient loading. However, balanced diet and managing the satiety of carp could reduce environmental nutrient loading and prolong the clear-water phase.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Ecology
Martina Ctvrtlikova, Jiri Kopacek, Jiri Nedoma, Petr Znachor, Petr Hekera, Jaroslav Vrba
Summary: In this paper, the unrecognized reproduction strategies of quillworts were studied to address long-term environmental stresses caused by atmospheric acidification. The study provides insights into the survival mechanisms of quillworts and their importance in the recovery of freshwater ecosystems.
ECOLOGY AND EVOLUTION
(2023)
Article
Ecology
Vojtech Kolar, Katerina Francova, Jaroslav Vrba, Stanislav Grill, David S. Boukal
Summary: This study investigates the changes in littoral areas of fishponds in the Czech Republic between 1950 and 2019. The results show that protected fishponds initially had larger littoral areas, but both protected and unprotected fishponds experienced significant decreases in littoral areas, especially during the second half of the 20th century. The study suggests that legal protection did not prevent the loss of littoral areas and calls for effective measures to protect and recover these important habitats.
ECOLOGICAL ENGINEERING
(2023)
Article
Marine & Freshwater Biology
Jaroslav Vrba, Michal Sorf, Jiri Nedoma, Zdenka Benedova, Lenka Kroepfelova, Jana Sulcova, Blanka Tesarova, Martin Musil, Libor Pechar, Jan Potuzak, Jan Regenda, Karel Simek, Klara Rehakova
Summary: We studied the impact of high fish stock and top-down control on plankton structure and seasonal dynamics in nine fishponds. The fishponds were managed conventionally with supplemental feeding. The results showed that the fishstock had a strong influence on the microbial food web and led to a reduction in control by crustacean zooplankton. The trophic structure severely restricted the link between herbivorous zooplankton and fish during the vegetation season.
Article
Environmental Sciences
Jana Petruzelova, Jindriska Bojkova, Jan Sychra, Selma de Donnova, Jaroslav Vrba, Vendula Polaskova, Linda Seifert, Vanda Sorfova, Jiri Kopacek
Summary: Chemical reversal has led to the recovery of macroinvertebrates in European freshwaters, but biological recovery is often delayed. A study in the Bohemian Forest showed the accelerated recovery of macroinvertebrate species richness and abundance over two decades. The recovery was influenced by water chemistry, habitat properties, and fish colonization, resulting in changes in community composition. However, recovering lakes still lack certain acid-sensitive and specialized herbivore species.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Limnology
Katerina Francova, Lukas Vesely, Jaroslav Vrba, Jindrich Duras
Summary: This study demonstrates the positive impact of jute mattings on the growth control of native and invasive macrophytes in shallow clear-water ponds. The results indicate that both jute densities tested were effective, permeable, and remained intact for one year. The study highlights the significant interaction among species, jute density, and date in terms of abundance and length of Elodea and Myriophyllum fragments.
INTERNATIONAL JOURNAL OF LIMNOLOGY
(2022)
Article
Limnology
Jana Petruzelova, Jindriska Bojkova, Jan Sychra, Vanda Sorfova, Vendula Polaskova, Jaroslav Vrba
Summary: Littoral macroinvertebrates in acidified waterbodies are influenced by the interaction of acidification and local environmental conditions, with factors such as water chemistry, littoral characteristics, and fish stock playing significant roles. The composition and richness of these macroinvertebrates are diverse due to the heterogeneity of local habitat properties, although acid-tolerant species dominate. The structure of littoral fauna in acidic waterbodies is complex, with local factors contributing to acid-stressed assemblages with high variability.
JOURNAL OF LIMNOLOGY
(2022)
