Article
Microbiology
Cecilia Power, Shannon Evenden, Kirsten Rough, Claire Webber, Maree Widdicombe, Barbara F. Nowak, Nathan J. Bott
Summary: This study compared the effects of treatment, company, and ranching year on blood fluke infections in ranched Southern Bluefin Tuna, finding that PZQ treatment is highly effective against Cardicola forsteri infection. Results indicate a lower prevalence and intensity of Cardicola spp. infection in 2019 compared to 2018, potentially due to continuous years of treatment reducing parasite load. qPCR showed higher sensitivity for diagnosing C. forsteri in the heart.
Article
Multidisciplinary Sciences
Cecilia Power, Melissa Carabott, Maree Widdicombe, Lachlan Coff, Kirsten Rough, Barbara Nowak, Nathan J. Bott
Summary: This study investigates the epidemiology of Cardicola spp. infection in ranched Southern Bluefin Tuna in Australia and finds that the therapeutic application of praziquantel is highly effective in controlling the infection. However, the intensity of infection does not increase as the ranching duration increases.
Article
Multidisciplinary Sciences
Lachlan Coff, Andrew J. Guy, Bronwyn E. Campbell, Barbara F. Nowak, Paul A. Ramsland, Nathan J. Bott
Summary: Genomic sequencing and assembly of the pathogen Cardicola forsteri were performed, revealing a high-quality contig-level assembly. The genome consists of a large portion of repetitive elements and coding regions, with the identification of numerous hypothetical polypeptides.
Article
Parasitology
Lachlan Coff, Jodie L. Abrahams, Simon Collett, Cecilia Power, Barbara F. Nowak, Daniel Kolarich, Nathan J. Bott, Paul A. Ramsland
Summary: Infections by blood flukes are a significant health issue for the aquaculture industry in Japan and Australia. This study characterized the glycans of Cardicola forsteri using histochemistry and mass spectrometry techniques. The findings provide insights into the glycomic profile of a marine platyhelminth and have implications for research on other trematodes.
INTERNATIONAL JOURNAL FOR PARASITOLOGY
(2022)
Article
Chemistry, Applied
Niki Milatou, Helen Miliou, Manos Dassenakis, Persefoni Megalofonou
Summary: This study examines the relationship between the biochemical composition (protein and lipid) and metal concentrations (Hg, Fe, Zn, Cu) in reared Atlantic bluefin tuna. The results reveal a positive relationship between Hg concentrations and protein content, and a negative relationship between Hg concentrations and lipid content. In contrast, Zn concentrations show a positive correlation with biochemical components. The study suggests that the accumulation of certain metals can be influenced by the biochemical composition of the tuna, and highlights the potential health risk of Hg for consumers.
Article
Mycology
Alejandro Lopez-Verdejo, Francisco E. Montero, Fernando de la Gandara, Miguel A. Gallego, Aurelio Ortega, Juan Antonio Raga, Jose F. Palacios-Abella
Summary: A new microsporidian species, Glugea thunni, has been reported in farmed Atlantic bluefin tunas from the Spanish Mediterranean. This pathogen causes severe pathology in the visceral cavity of the fish, posing a significant risk to bluefin tuna aquaculture.
Article
Environmental Sciences
Jonah L. Yick, Toby Travers
Summary: Plastic ingestion by pelagic predatory fish, especially in Australian waters, is a growing concern. This study reports on cases of macroplastic and megaplastic ingestion by southern bluefin tuna, contributing to the limited information on the effects of plastic pollution on commercially important pelagic fish in Australia.
MARINE POLLUTION BULLETIN
(2022)
Article
Genetics & Heredity
Xiaomeng Zhao, Yu Huang, Chao Bian, Xinxin You, Xinhui Zhang, Jieming Chen, Min Wang, Cancan Hu, Yun Xu, Junmin Xu, Qiong Shi
Summary: This study sequenced and assembled the genome of the economically important Southern bluefin tuna. The researchers found that this fast-swimming fish has more hemoglobin genes and a mutated beta-hemoglobin compared to slower-moving fishes. These findings suggest that the high copy numbers of hemoglobin genes and the adjusted function of beta-hemoglobin may support the fast-swimming activity of tunas.
FRONTIERS IN GENETICS
(2022)
Article
Multidisciplinary Sciences
Elan J. Portner, Owyn Snodgrass, Heidi Dewar
Summary: This study examines the foraging ecology of Pacific bluefin tuna in the California Current System. They found that the tuna's diet and foraging behavior varied over time, depending on the availability of prey. The study also highlights the importance of understanding the foraging ecology of this species for predicting its responses to changes in resource availability and its impact on fisheries.
Article
Fisheries
Takao Hayashida, Kentaro Higuchi, Kazuharu Nomura, Junpei Konishi, Yukinori Shimada, Kogen Okita, Toshinori Takashi, Yukinori Kazeto, Koichiro Gen
Summary: This study investigated the optimal cold-shock conditions for inducing triploidy in Pacific bluefin tuna, finding that starting the treatment 5 minutes after fertilization at 5 degrees C for 15 minutes resulted in high triploidization rates. This method could potentially help address the issue of muscle fat content reduction during sexual maturation in aquaculture-produced Thunnus orientalis.
Article
Environmental Sciences
Rebecca Whitlock, Robert J. Schallert, Michael J. W. Stokesbury, Michael Castleton, Barbara A. Block
Summary: Understanding the productivity of marine fish and wildlife populations is crucial for their sustainable management. This study evaluates the potential of acoustic telemetry as a long-term monitoring tool to estimate rates of natural mortality and finds that the use of satellite tags can improve the accuracy and precision of the monitoring process.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Physiology
Takashi Kitagawa, Takaaki K. Abe, Keitaro Kubo, Ko Fujioka, Hiromu Fukuda, Yosuke Tanaka
Summary: This study aimed to clarify the development of the ability of Pacific bluefin tuna (PBT) to maintain a high body temperature. The research found that PBT can maintain higher body temperatures as they grow and their ability to maintain a high body temperature is independent of the surrounding ambient temperature when the fish reach a certain size. The study also revealed the changes in whole-body heat-transfer coefficient and heat-production rate during growth.
FRONTIERS IN PHYSIOLOGY
(2022)
Review
Oceanography
Taketoshi Kodama, Atsushi Tawa, Taiki Ishihara, Yosuke Tanaka
Summary: Bullet tuna and Pacific bluefin tuna larvae coexist in the Sea of Japan, but the former has unique ecological characteristics that allow for their coexistence despite competition with the latter.
PROGRESS IN OCEANOGRAPHY
(2022)
Article
Food Science & Technology
Ying Bu, Menglin Han, Guizhi Tan, Wenhui Zhu, Xuepeng Li, Jianrong Li
Summary: This study investigated the quality characteristics of southern bluefin tuna during refrigerated storage at 4 degrees C, finding that lipid and protein oxidation aggravated with storage time, leading to browning. The model constructed using partial least squares showed that thiobarbituric acid reactive substance content was significantly correlated with color stability.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Fisheries
Hiroshi Ashida, Tamaki Shimose, Yumi Okochi, Yosuke Tanaka, Sho Tanaka
Summary: This study investigated the reproductive traits of Pacific bluefin tuna in the Nansei Islands and waters off southwestern Honshu Island. The results showed that the distribution of spawning fish was influenced by sea surface temperatures, with a peak in late June. Mature female fish were widely distributed in the study area. The spawning fraction increased over time, and batch fecundity was positively affected by fork length and days since the start of the season.
FISHERIES RESEARCH
(2022)
Article
Microbiology
Barbara F. Nowak, Mai Dang, Claire Webber, Lukas Neumann, Andrew Bridle, Roberto Bermudez, Daryl Evans
Summary: The study found that Southern Bluefin Tuna showed the same pattern in changes in the surface area of MMCs, but blood fluke infection varied significantly between different cohorts and individual fish within the same cohort. Cardicola forsteri had a higher prevalence than Cardicola orientalis. This research contributes to our understanding of blood fluke infections in Southern Bluefin Tuna and their interactions with MMCs.
Article
Fisheries
Shokoofeh Shamsi, Scott Day, Xiaocheng Zhu, Matthew McLellan, Diane P. Barton, Mai Dang, Barbara F. Nowak
Summary: This study investigated the occurrence of parasites in undesirable fish species on Australian Murray cod farms, revealing that some fish carry multiple parasites with potential harm. The results provide important insights into the potential risks to Murray cod populations in farm systems and other fish in natural water resources where Murray cod are released.
Article
Fisheries
Andrew R. Bridle, Thomas Hill, Aaron Smith, Philip Crosbie, Barbara F. Nowak
Summary: Research has found that concentrations as low as 0.1/L of N. perurans can cause AGD, compared to the higher concentrations previously used in studies. It is suggested that concentrations of N. perurans measured on salmon farms should be used for future experimental challenges.
JOURNAL OF FISH DISEASES
(2021)
Review
Microbiology
Jemma Hudson, Barbara F. Nowak
Summary: Research into management solutions for AGD presents challenges due to varied infection methods, pathogen sources, infectious doses, and environmental conditions, making comparisons between studies difficult.
Article
Parasitology
Lachlan Coff, Jodie L. Abrahams, Simon Collett, Cecilia Power, Barbara F. Nowak, Daniel Kolarich, Nathan J. Bott, Paul A. Ramsland
Summary: Infections by blood flukes are a significant health issue for the aquaculture industry in Japan and Australia. This study characterized the glycans of Cardicola forsteri using histochemistry and mass spectrometry techniques. The findings provide insights into the glycomic profile of a marine platyhelminth and have implications for research on other trematodes.
INTERNATIONAL JOURNAL FOR PARASITOLOGY
(2022)
Article
Fisheries
A. K. Farmery, K. Alexander, K. Anderson, J. L. Blanchard, C. G. Carter, K. Evans, M. Fischer, A. Fleming, S. Frusher, E. A. Fulton, B. Haas, C. K. MacLeod, L. Murray, K. L. Nash, G. T. Pecl, Y. Rousseau, R. Trebilco, I. E. van Putten, S. Mauli, L. Dutra, D. Greeno, J. Kaltavara, R. Watson, B. Nowak
Summary: Seafood plays a significant role in promoting healthy and sustainable diets, as well as addressing hunger and malnutrition. The supply and consumption of seafood are affected by various factors and need to be examined holistically to align with the 2030 Sustainable Development Goals.
REVIEWS IN FISH BIOLOGY AND FISHERIES
(2022)
Article
Fisheries
Petra R. Quezada-Rodriguez, Richard S. Taylor, Francisca Samsing, Megan Rigby, Andrew T. Wood, Barbara F. Nowak, James W. Wynne
Summary: This study examines the effects of Chloramine-T (Cl-T) treatment on the gill health indicators of freshwater farmed Atlantic salmon. The results show that Cl-T treatment alters the microbiome composition and morphology of the gills.
Article
Microbiology
Cecilia Power, Shannon Evenden, Kirsten Rough, Claire Webber, Maree Widdicombe, Barbara F. Nowak, Nathan J. Bott
Summary: This study compared the effects of treatment, company, and ranching year on blood fluke infections in ranched Southern Bluefin Tuna, finding that PZQ treatment is highly effective against Cardicola forsteri infection. Results indicate a lower prevalence and intensity of Cardicola spp. infection in 2019 compared to 2018, potentially due to continuous years of treatment reducing parasite load. qPCR showed higher sensitivity for diagnosing C. forsteri in the heart.
Article
Parasitology
Luke J. Norbury, Sho Shirakashi, Cecilia Power, Barbara F. Nowak, Nathan J. Bott
Summary: This review article discusses the current use of the anthelmintic praziquantel (PZQ) in the aquaculture industry and its efficacy against various flatworm parasites in fish. It evaluates the routes of PZQ administration, as well as issues regarding palatability, pharmacokinetics, and toxicity in fish. The impacts of PZQ on non-target species, environmental effects, and the development of drug resistance are also discussed.
INTERNATIONAL JOURNAL FOR PARASITOLOGY-DRUGS AND DRUG RESISTANCE
(2022)
Article
Multidisciplinary Sciences
Lachlan Coff, Andrew J. Guy, Bronwyn E. Campbell, Barbara F. Nowak, Paul A. Ramsland, Nathan J. Bott
Summary: Genomic sequencing and assembly of the pathogen Cardicola forsteri were performed, revealing a high-quality contig-level assembly. The genome consists of a large portion of repetitive elements and coding regions, with the identification of numerous hypothetical polypeptides.
Article
Biology
Tim Young, Olivier Laroche, Seumas P. Walker, Matthew R. Miller, Paula Casanovas, Konstanze Steiner, Noah Esmaeili, Ruixiang Zhao, John P. Bowman, Richard Wilson, Andrew Bridle, Chris G. Carter, Barbara F. Nowak, Andrea C. Alfaro, Jane E. Symonds
Summary: Fish aquaculture is a rapidly expanding global industry that seeks to meet the growing demand for marine protein sources. Enhancing feed efficiency in farmed fish is crucial for cost reduction and improving sustainability. By using a systems-based approach, this study establishes multiple layers of omics data and clinical variables to predict feed efficiency and associated traits in a fish model, ultimately identifying key variables and highlighting the importance of proteomic and metabolomic data.
Article
Biotechnology & Applied Microbiology
Thanh Trung Tran, Nathan J. Bott, Rebecca van Gelderen, Nam Trung Nguyen, Phuong Minh Thi Chu, Ha Hoang Chu
Summary: Nitrogen compounds, especially ammonia, are produced in aquaculture systems. In this study, two strains of Pseudomonas bacteria isolated from shrimp pond water were analyzed to understand their genetic characteristics and metabolic pathways related to ammonia reduction. The analysis showed that these strains belong to Pseudomonas putida and share a common ancestor with 33 genomes. Three genes, carbamate kinase (arcC), glutamine synthetase (Glul), and aminomethyltransferase (amt), were found to be involved in three metabolic pathways, potentially playing important roles in ammonia reduction and bacterial growth via ammonia assimilation.
FERMENTATION-BASEL
(2022)
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.
