Article
Microbiology
Haipeng Guo, Xuezhi Fu, Jikun He, Ruoyu Wang, Mengchen Yan, Jing Wang, Pengsheng Dong, Lei Huang, Demin Zhang
Summary: This study reveals the important role of gut bacterial community induced by a biofloc system (BFS) in protecting shrimp from bacterial pathogens. The study also provides a micro-ecological regulation strategy to improve aquatic animal diseases.
Article
Fisheries
Huiyu Shen, Xuechen Zhang, Dong Qian, Jiong Chen, Jinbo Xiong
Summary: The gut microbiota plays a crucial role in host health and fitness, and dysbiosis can lead to host disease. However, the effect of interkingdom infection, such as eukaryotic Enterocytozoon hepatopenaei (EHP), on the gut bacterial community remains unclear. This study found that EHP infection in shrimp resulted in decreased digestion activities but increased immune activities. EHP infection directly altered the gut bacterial community and enzyme activities, which in turn affected shrimp growth traits. In addition, EHP infection led to an unstable gut microbiota, making the shrimp more susceptible to bacterial pathogens and hindering their growth.
Article
Biology
Brandon H. Schlomann, Raghuveer Parthasarathy
Summary: By studying the formation of three-dimensional bacterial clusters experimentally and theoretically, it was found that the distribution of gut bacterial cluster sizes follows a power law decay, with the decay trend of larger clusters being strain-dependent.
Article
Microbiology
Wujie Xu, Guoliang Wen, Haochang Su, Yu Xu, Xiaojuan Hu, Yucheng Cao
Summary: This study investigated the effects of different input C/N ratios on the bacterial community of water biofloc and shrimp gut in a commercial BFT system. The results showed that the manipulation of input C/N ratio could affect the bacterial community and nitrogen dynamics in the system.
Article
Multidisciplinary Sciences
Anna S. Weiss, Lisa S. Niedermeier, Alexandra von Strempel, Anna G. Burrichter, Diana Ring, Chen Meng, Karin Kleigrewe, Chiara Lincetto, Johannes Huebner, Baerbel Stecher
Summary: By characterizing a synthetic gut bacterial community, the authors challenge the concept of universal keystone species in the gastrointestinal ecosystem, revealing a context dependency of keystone functions and bacterial interaction networks.
NATURE COMMUNICATIONS
(2023)
Article
Agricultural Engineering
Felix Gyawu Addo, Songhe Zhang, Benjamin Manirakiza, Okugbe Ebiotubo Ohore, Yuan Shudong
Summary: This study found that biofloc technology using straw substrates can stimulate shrimp growth, with the 40 μm treatment having the best removal rates for ammonium and nitrite nitrogen. Salinity was identified as a significant factor closely related to the microbial community in biofloc.
BIORESOURCE TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Kazuki Nagashima, Aishan Zhao, Katayoon Atabakhsh, Minwoo Bae, Jamie E. Blum, Allison Weakley, Sunit Jain, Xiandong Meng, Alice G. Cheng, Min Wang, Steven Higginbottom, Alex Dimas, Pallavi Murugkar, Elizabeth S. Sattely, James J. Moon, Emily P. Balskus, Michael A. Fischbach
Summary: Certain bacterial strains from the microbiome induce a potent T cell response, and many T cells in the gut repertoire recognize multiple bacterial strains. 13 T cell clones show a one-to-many TCR-to-strain relationship, recognizing 18 Firmicutes strains.
Article
Fisheries
Mariel Gullian-Klanian, Mercedes Quintanilla-Mena, Carlos Puch Hau
Summary: High-throughput sequencing was used to study bacterial diversity in a Biofloc aquaculture system and its effect on digestive enzyme activity in Nile tilapia. The study found that the biofloc group had higher bacterial diversity and a different composition compared to the control group. Certain bacterial genera correlated significantly with enzyme activity. The biofloc microbiota provided enzymes that improved digestion and nutrient assimilation in the fish.
Article
Microbiology
Olga V. Karnachuk, Inna A. Panova, Vasilii L. Panov, Olga P. Ikkert, Vitaly V. Kadnikov, Igor I. Rusanov, Marat R. Avakyan, Lubov B. Glukhova, Anastasia P. Lukina, Anatolii V. Rakitin, Shahjahon Begmatov, Alexey V. Beletsky, Nikolai V. Pimenov, Nikolai V. Ravin
Summary: This study aims to investigate the diversity and activity of sulfate-reducing bacteria (SRB) in the camel gut. It reveals the presence of an abundant SRB community in the feces of Bactrian camels through 16S rRNA gene profiling, SRR measurement, and targeted cultivation. The findings shed light on the activity of SRB in the camel gut.
Article
Fisheries
Mohamed M. Said, Omaima M. Ahmed
Summary: This study compared the effects of sugarcane molasses and wheat flour as carbohydrate sources on biofloc technology. It was found that the molasses treatment had significant advantages in shrimp growth performance and bacterial quality, while the wheat flour treatment showed better survival rate and biomass.
AQUACULTURE NUTRITION
(2022)
Article
Ecology
Yale Deng, Klaudyna Borewicz, Joost van Loo, Marko Zabala Olabarrieta, Fotini Kokou, Detmer Sipkema, Marc C. J. Verdegem
Summary: The study revealed that in-situ produced biofloc significantly increased the prokaryotic diversity in tilapia gut, while dietary supplementation of processed biofloc only changed the relative abundance of minor prokaryotic taxa. The growth-promoting effect was only detected in the in-situ biofloc treatment, while dietary supplementation of processed biofloc had no effect on fish growth performance.
Article
Biodiversity Conservation
Lin Zhu, Xuan Che, Xingguo Liu, Huang Liu, Yiming Li, Jie Wang, Guofeng Cheng, Jun Chen, Rong Tang, Xiaolong Chen, Xin Chen
Summary: In this study, a group of large-scale biofloc shrimp culturing facilities were designed, and the bioflocs were domesticated by continuously reducing the ratio of carbon to feed. The results showed that with the progress of reducing carbon input, the bacterial diversity of the biofloc system increased significantly. The domestication formed a relatively stable micro-ecosystem, resulting in a high survival rate and unit yield of shrimp.
Article
Fisheries
Felix Gyawu Addo, Songhe Zhang, Benjamin Manirakiza, Yu Ma, Shudong Yuan, Salah Alden Alklaf, Shaozhuang Guo, Godwin Abakari
Summary: In this study, a 30-day culture trial was conducted to investigate the effects of brown sugar addition on nutrient removal, feed conversion ratio, growth performance, and microbial community in a rice straw-based biofloc shrimp system. The results showed that the addition of brown sugar significantly reduced ammonium and nitrite nitrogen concentrations and improved nutrient removal rates. Furthermore, the addition of brown sugar also resulted in lower feed conversion ratio and higher shrimp survival rates. The dominant microbial phyla identified in all treatments played a crucial role in nutrient cycling and promoting water quality.
Article
Microbiology
Cuncheng Liu, Huaiying Yao, Cunwen Wang
Summary: This study demonstrates an effective method for the treatment of antibiotic bacterial residue using black soldier fly larvae, which can degrade oxytetracycline and serve as a bioremediation tool. However, it also reveals the presence of abundant antibiotic resistance genes in the larval gut, highlighting the need for further attention in environmental health risk assessments.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Ecology
Alan Emanuel Silva Cerqueira, Tobin J. Hammer, Nancy A. Moran, Weyder Cristiano Santana, Maria Catarina Megumi Kasuya, Cynthia Canedo da Silva
Summary: A study on Brazilian stingless bees revealed that they lack common bacterial symbionts Snodgrassella and Gilliamella found in other social corbiculate bees, instead harboring more environmental bacteria and bee-specific Starmerella yeasts. This indicates ecological shifts or acquisition of new symbionts as functional replacements in the stingless bees.
Article
Fisheries
Hunter S. Bailey, Ashley N. Fincannon, Lee A. Fuiman
Summary: This study investigated the transfer of fatty acids from broodstock diets to eggs and the time needed for the eggs to equilibrate to the diet in Southern flounder. The findings indicate that different diet treatments significantly affect the fatty acid composition of eggs, and it takes 8-16 weeks for the eggs to adapt to changes in the adult diet. These results are important for improving broodstock diets and feeding protocols in stock-enhancement programs.
Article
Fisheries
Yu Liu, Mingtao Lei, Hector Victor, Yan Wang
Summary: This study confirms the feasibility of replacing raw fish diet with a formulated diet in commercial farming of large yellow croaker, which can increase fish survival and yield, and reduce feed cost and body lipid deposition.
Article
Fisheries
Xiaoyan Zhang, Lize San, Yucong Yang, Yuehong Tao, Jiangong Ren, Yufeng Liu, Zhongwei He, Jiashuo Di, Ziteng Pei, Guixing Wang, Jilun Hou
Summary: Gynogenesis is an effective technique for establishing homogeneous lines and confirming potential chromosomal mechanisms of sex determination in fish. This study successfully induced gynogenetic families in Thamnaconus modestus and established a complete method for gynogenesis induction.
Article
Fisheries
Julieta C. Martinelli, Megan Considine, Helen R. Casendino, Carolyn M. Tarpey, Isadora Jimenez-Hidalgo, Jacqueline L. Padilla-Gamino, Teri L. King, Lorenz Hauser, Steven Rumrill, Chelsea L. Wood
Summary: Shell-boring polychaetes have caused significant damage to mariculture operations worldwide, particularly in the US Pacific region. This study provides a comprehensive dataset on the prevalence, species distribution, and environmental associations of these parasites, highlighting the impact of season, culturing methods, and environmental factors on infestation.
Article
Fisheries
Juan Gao, Xueshan Li, Kangle Lu, Kai Song, Jian Zhang, Ling Wang, Chunxiao Zhang
Summary: This study investigated the effects of dietary protein levels on growth performance, antioxidant capacity, digestive enzyme activity, and metamorphosis rate of bullfrog tadpoles. The optimal dietary protein level for bullfrog tadpoles was estimated to be 42.49%-46.50% of the diet.
Article
Fisheries
Qiang Li, Lijun Duan, Dongsheng Jin, Yuxin Chen, Yirong Lou, Qianjin Zhou, Zhongjie Xu, Fangjie Chen, Hongxian Chen, Guizong Xu, Maocang Yan, Guanjun Yang, Jianfei Lu, Yanjun Zhang, Jiong Chen
Summary: This study developed a centrifugal microfluidic chip with on-chip RPA to detect five pathogenic microorganisms. The chip enabled the parallel analysis of six genetic markers from a single sample and allowed for the highly automated detection of multiple samples. Compared with PCR and DNA sequencing, the on-chip RPA assay showed high sensitivity and specificity for detecting multiple pathogens in shrimp aquaculture.
Article
Fisheries
Xingchen Huo, Pengxu Wang, Fengxia Zhao, Qian Liu, Qingqing Tian, Lingjie Tang, Maolin Lv, Zhaohui Wei, Chunrong Yang, Jianguo Su
Summary: Bacterial diseases in aquaculture ponds have negative effects on sustainable development. The use of composite I20 biotherapy has been shown to effectively treat bacterial diseases in bullfrog ponds, providing a new strategy for controlling bacterial diseases in aquaculture.
Article
Fisheries
Peng Yin, Takaya Saito, Per Gunnar Fjelldal, Bjorn Tharandur Bjornsson, Sofie Charlotte Remo, Sandeep Sharma, Rolf Erik Olsen, Kristin Hamre
Summary: This study aims to investigate the effect of seasonal changes in temperature and photoperiod on the redox metabolism of Atlantic salmon at the molecular level. The research findings suggest that the changing photoperiod and temperature influenced the redox metabolism of Atlantic salmon, highlighting the importance of oxidative status in the ecological implications.
Article
Fisheries
Nicholas Oppong Mensah, Jeffery Kofi Asare, Emmanuel Tetteh-Doku Mensah, Ernest Christlieb Amrago, Frank Osei Tutu, Anthony Donkor
Summary: This study investigates aquaculture farmers' preference for climate-smart aquaculture insurance products, the challenges they face, and their preferred insurance coverage. The results show that farmers prefer Climate-Induced Aquaculture Stock Mortality Insurance and the most significant constraint is the delay in claim settlement.
Article
Fisheries
Qiu-Ping Chai, Pei Wu, Wei-Dan Jiang, Yang Liu, Hong-Mei Ren, Xiao-Wan Jin, Lin Feng, Xiao-Qiu Zhou
Summary: The study found that appropriate levels of potassium diformate (KDF) can enhance the immune defense and mediate the inflammatory process in fish, possibly through the regulation of T cell differentiation via JAK-STAT and NF-kappa B signaling pathways.
Article
Fisheries
Tian Zhu, Haomin Jia, Haopeng Zhang, Yujing Xiao, Cui Han, Jiaxin Yang
Summary: Chicken manure has significant effects on the cultivation of Chlorella and rotifers. The optimal amount of chicken manure extract for continuous cultivation is 10 mLL-1. Chicken manure can promote the growth of Chlorella and improve the fatty acid composition, indirectly enhancing the growth condition and fatty acid content of rotifers.
Article
Fisheries
Zheng Luo, Yang Yu, Zhenning Bao, Fuhua Li
Summary: This study analyzed the heritability and genetic correlation of two growth traits in Pacific white shrimp and evaluated the genomic prediction using different genomic selection models. The results showed that the NeuralNet model had the highest prediction accuracy and better prospects for predicting shrimp growth traits.
Article
Fisheries
Alberto Ruiz, Ignasi Sanahuja, Karl B. Andree, Dolors Furones, Paul G. Holhorea, Josep A. Calduch-Giner, Jose J. Pastor, Marc Vinas, Jaume Perez-Sanchez, Sofia Morais, Enric Gisbert
Summary: Supplementing diets with a combination of spice oleoresins can reduce lipid accumulation and inflammation in farmed fish. The combination of spice oleoresins also has an immunomodulatory effect on the fish's intestinal immune system, potentially offering anti-inflammatory benefits.
Article
Fisheries
Beibei Zhao, Renhui Mei, Le Li, Di Hu, Lei Li
Summary: This study reveals that JfCXCL8_L1a and JfCXCL8_L1b have different immune pathways, and JfCXCL8_L1b plays a significant role in enhancing the adaptive immunity of T cell-dependent antigen.
Article
Fisheries
Yuhang Liu, Danying Cao, Nan Wu, Xuyang Zhao, Qingsong Zhu, Lian Su, Fatima Altaf, Qianqian Zhang, Haokun Liu, Yongming Li, Bruno Hamish Unger, Yingyin Cheng, Wanting Zhang, Aihua Li, Yaping Wang, Xiao-Qin Xia
Summary: Based on previous research, sinomenine has been found to protect mucosal immunity in farmed fish species by preventing intestinal pathological changes and regulating gene expression related to inflammation. It also enhances immune homeostasis and controls the growth of pathogenic bacteria.