Article
Green & Sustainable Science & Technology
Qiang Xu, Xiang Peng, Halun Guo, Yang Che, Zhi Dou, Zhipeng Xing, Jun Hou, David Styles, Hui Gao, Hongcheng Zhang
Summary: Rice-crayfish coculture produces more nutrition per hectare compared to rice monoculture and crayfish monoculture, but has a larger environmental footprint. By increasing productivity per hectare and improving fertilizer and feed use efficiency, the environmental burdens of rice-crayfish coculture could be further reduced.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2022)
Article
Environmental Sciences
Jun Hou, Xiaolong Wang, Qiang Xu, Yuxian Cao, Dingyue Zhang, Jianqiang Zhu
Summary: Integrated rice-crayfish systems, specifically rice-crayfish rotation and coculture modes, have been found to increase rice yield, nutrient use efficiency, and economic returns compared to rice monoculture. However, these systems also lead to higher environmental impacts and a decrease in renewable resources. The study highlights the importance of technical training for farmers to optimize fertilizer use and food yield in order to enhance sustainability in food production.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Agricultural Engineering
Jose Naranjo-Paramo, Luis R. Martinez-Cordova, Mayra Vargas-Mendieta, Humberto Villarreal
Summary: The study found that redclaw crayfish can be successfully cultured in zero-water exchange conditions using a combination of aeration techniques, with 12 hours of aeration per day being the most effective method. This approach significantly reduces production costs by optimizing electricity use for water pumping and aeration.
AQUACULTURAL ENGINEERING
(2022)
Article
Food Science & Technology
Hui Gao, Xiang Peng, Linxiu Dai, Jingyong Li, Qian Yang, Zhi Dou, Qiang Xu
Summary: Previous studies mainly focused on cadmium contamination in traditional rice fields, with little research on rice-crayfish coculture. In this study, a cadmium-contaminated rice-crayfish coculture system was established, and the results showed that the cadmium concentration in both rice and crayfish increased as the soil cadmium concentration increased. The jointing and heading stages of rice were found to be critical periods for cadmium enrichment in aboveground tissues. Additionally, the soil's total cadmium concentration and water cadmium concentration were positively correlated with cadmium content in various tissues of rice and various organs of crayfish.
Article
Biochemistry & Molecular Biology
Hao Wang, Ping-Ping Liu, Zhe Wei, Xian-Wei Wang
Summary: In the arthropod gut, the Imd/Relish pathway maintains the expression of antimicrobial peptides, while pathogenic bacteria induce extracellular microbicidal ROS production through the Duox2 system. This study reveals that PcEiger, a TNF ortholog, bridges the Imd/Relish pathway and the Duox2/ROS system in Procambarus clarkii. PcEiger expression is induced by commensal bacteria or the Imd/Relish pathway and regulates Duox2 expression and ROS production through the transcription factor Atf2. PcEiger also mediates the regulation of the Duox2/ROS system by commensal bacteria and the Imd/Relish pathway.
Review
Agronomy
Yang Jiang, Cougui Cao
Summary: The CRISP model in China has not only made China the world's largest crayfish producer, but has also positively impacted green high-quality rice production.
AGRONOMY FOR SUSTAINABLE DEVELOPMENT
(2021)
Article
Fisheries
Xin Ren, Guohui Peng, Bo Peng, Yunfei Tan, Xufeng Bai
Summary: In this study, disease resistance genes in crayfish were explored using transcriptome analysis, and favoured haplotypes were identified through pathogen-challenge experiments. A novel disease resistance gene, R, was identified, and favoured haplotype combinations for ALF, R, and crustin2 were obtained. The study provides a molecular breeding strategy to enhance crayfish disease resistance and improve its production.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Fisheries
Yong Zhou, Matthew Tom Harrison, Ke Liu, Li Xiao, Jie Zhu, Min Wang, Haoxuan Li, Guoxin Yao, Jie Liu, Bo Zhu, Zhangyong Liu
Summary: Transformation of food systems is necessary for feeding the growing global population. The rice-crayfish integrative system (RCIS) allows for the production of multiple types of food on the same land area and has gained popularity in Asian countries. However, there is limited information regarding the distribution of crayfish in paddy fields, which is crucial for effective management. This study conducted a 2-year field experiment and found that crayfish distribution in RCIS is influenced by water depth and field topography, with the highest densities observed in gullies near the short ridge of rectangular farmland.
Article
Energy & Fuels
Richard A. Newby, Dale L. Keairns, Robert W. Stevens
Summary: The objective of this study was to estimate the cost of commercial production of oxygen carriers (OCs) for large-scale application in the chemical looping combustion (CLC) power generation industry. Two production facility scenarios were considered, and two OC production techniques were addressed. The estimated OC product costs can be used to guide development and determine the maximum OC makeup rate for achieving a designated cost-of-electricity (COE) reduction goal.
Article
Geosciences, Multidisciplinary
Ayat Al Assi, Rubayet Bin Mostafiz, Carol J. Friedland, Robert V. Rohli, Arash Taghinezhad, Md Adilur Rahim
Summary: After Hurricanes Katrina and Rita in 2005, the State of Louisiana implemented the Road Home Program to help homeowners elevate damaged homes using federal funds. This study evaluates the cost-effectiveness of the program in Jefferson Parish, Louisiana, by analyzing flood risk reduction and benefit-cost ratios. The findings suggest that elevating homes by 3 feet or to the base flood elevation reduces median annual loss by 98% and generates a positive benefit-cost ratio. These results enhance understanding of federal elevation mitigation investments and optimal heights for elevation.
Article
Green & Sustainable Science & Technology
Amelie Michalke, Sandra Ko Koehler, Lukas Messmann, Andrea Thorenz, Axel Tuma, Tobias Gaugler
Summary: Agriculture, as one of the world's largest polluters, is misled by consumers who demand unsustainable and inadequately priced food products. Shifting demand towards sustainable dietary choices can lead to a sustainable transition of agri-food networks. This study combines environmental assessments and monetary impacts to evaluate the economic environmental damage caused by different food products.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Ecology
Shams M. Galib, Jingrui Sun, Darren R. Grocke, Martyn C. Lucas
Summary: This study conducted an experimental research on the effects of non-native crayfish on stream ecosystems and found that even at low densities, non-native crayfish can significantly alter multiple components of stream ecosystems. It emphasizes the need to minimize the spread of non-native crayfish within and between streams.
FRESHWATER BIOLOGY
(2022)
Article
Chemistry, Physical
Reuben Joseph Soja, Muhammad Bello Gusau, Usman Ismaila, Nuraddeen Nasiru Garba
Summary: This study aims to estimate the cost of nuclear hydrogen production and compare the results with similar studies using the HEEP program. Six existing light water reactors were used to evaluate the levelized cost of nuclear hydrogen production, and the results showed that different reactor technologies and production methods impact the final price of hydrogen.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Computer Science, Artificial Intelligence
Heming Jia, Honghua Rao, Changsheng Wen, Seyedali Mirjalili
Summary: This paper proposes a meta heuristic optimization algorithm called Crayfish Optimization Algorithm (COA), which simulates crayfish's summer resort behavior, competition behavior, and foraging behavior. The COA balances exploration and exploitation by dividing these behaviors into three stages: summer resort stage, competition stage, and foraging stage. The temperature regulates the exploration and exploitation processes in COA, resulting in higher randomness and global optimization effect. The experimental results show that COA can achieve a good optimization effect by balancing exploration and exploitation.
ARTIFICIAL INTELLIGENCE REVIEW
(2023)
Article
Environmental Sciences
Songjie He, Kanchan Maiti, Neha Ghaisas, Kiran Upreti, Victor H. Rivera-Monroy
Summary: This study investigates methane fluxes in the Mississippi River Delta Plain and finds that all wetland habitats are net sources of atmospheric methane throughout the year, with the highest fluxes occurring at 20 degrees Celsius. The recently formed delta system (Wax Lake Delta, WLD) has higher methane flux rates compared to Barataria-Lake Cataouatche (BLC), suggesting that soil organic matter may not be the sole determining factor in methane flux. Further research is needed to expand the understanding of methane fluxes in different wetland habitats.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
