Article
Biochemistry & Molecular Biology
Marina Machado, Diogo Peixoto, Paulo Santos, Ana Ricardo, Ines Duarte, Ines Carvalho, Claudia Aragao, Rita Azeredo, Benjamin Costas
Summary: This study aimed to investigate the effects of dietary tryptophan supplementation on the immune condition of European seabass during stressful rearing conditions and their response to bacterial pathogens. The results showed that stress did not compromise the health indicators of seabass, but exacerbated the inflammatory response. Tryptophan had minimal effects on immune indicators but improved the inflammatory response against bacterial pathogens during stressful conditions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biology
Eric H. Ignatz, Fabio S. Zanuzzo, Rebeccah M. Sandrelli, Kathy A. Clow, Matthew L. Rise, A. Kurt Gamperl
Summary: The study concluded that the stress response characteristics of Atlantic salmon at low temperatures do not accurately predict their survival and stress response at high temperatures. Interestingly, the salmon showed increased feed intake at temperatures up to 22 degrees C, contrary to previous findings. The results also suggest that the thermal tolerance of this population of salmon is high, questioning the relevance of CTMax in real-world temperature changes.
JOURNAL OF THERMAL BIOLOGY
(2021)
Article
Environmental Sciences
Ana S. Gomes, Fabian Zimmermann, Ernst M. Hevroy, Marcus A. L. Soyland, Tom J. Hansen, Tom Ole Nilsen, Ivar Ronnestad
Summary: Precision feeding aims to provide optimal growth and performance for farmed animals while minimizing feed waste. This study examined the relationship between meals, feed deprivation time, and the feed consumed by Atlantic salmon post smolts. The results showed that the time between meals and the size of the previous meal significantly affected the feed intake in the following meal, suggesting the possibility of optimizing meal size.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Ophelie Gervais, Carolina Penaloza, Remi Gratacap, Athina Papadopoulou, Mariana Beltran, Neil C. Henderson, Ross D. Houston, Musa A. Hassan, Diego Robledo
Summary: In this study, single-cell RNA sequencing was used to provide a high-dimensional insight into the transcriptional landscape of Atlantic salmon cells during early Infectious Salmon Anaemia Virus (ISAV) infection. The results showed a clear anti-viral response in infected cells, characterized by the upregulation of IFNA2 or IRF2. Additionally, uninfected bystander cells exhibited transcriptional differences, suggesting paracrine signaling from infected cells. This study identified potential key genes involved in the host-virus interaction, which can be targeted in future functional studies to enhance the resistance of Atlantic salmon to ISAV.
Article
Fisheries
Jingwen Ding, Bengt Finstad, Lars Christian Gansel, Ann-Kristin Tveten, Steffen Hageselle Blindheim, Yanran Cao
Summary: This study evaluated the use of fecal corticoid metabolites (FCM) as stress indicators in farmed Atlantic salmon. The results showed that FCM levels correlated well with plasma cortisol levels during long-term stress. Standard sampling procedures and good experimental designs are necessary for reliable FCM measurements.
Article
Fisheries
Melissa M. Rocker, Michael J. Lewis, Thomas S. Mock, David S. Francis, Federica Bellagamba, Vittorio M. Moretti, Gerry P. Quinn, Richard P. Smullen, Giovanni M. Turchini
Summary: The study found high variability in the chemical composition of POM, with D-glutamic acid and D-aspartic acid being effective indicators of protein digestibility in Atlantic salmon. Production variables such as rendering temperature and raw material freshness significantly impacted D-amino acids and biogenic amines.
Article
Fisheries
Emile Vadboncoeur, Charlotte Nelson, Kathy A. Clow, Rebeccah M. Sandrelli, Colin J. Brauner, Andrew K. Swanson, A. Kurt Gamperl
Summary: With climate change, winter storms are expected to increase in both frequency and intensity, leading to rapid declines in water temperatures at sea-cages. In this study, Atlantic salmon were acclimated to 3 degrees C and exposed to a 'cold shock' of 0 degrees C for either 4 or 24 hours. A moderate stress response was observed, but there were no mortalities within 120 hours of the 'cold shock', suggesting that rapid declines in seawater temperature alone are unlikely to be the cause of winter-related mortalities at salmon cage-sites in Iceland and Canada.
Article
Fisheries
Erik Hoglund, Ole Folkedal, Johan Aerts, Malthe Hvas, Oyvind overli, Anders-Mangor Jensen, Marco A. Vindas, Jonatan Nilsson, Tore Kristiansen
Summary: Water supply is limited in salmon hatcheries, so reduced water flow and oxygenation are used. However, reduced water exchange can lead to CO2 accumulation, causing hypercapnia and negative impacts on fish welfare. This study found that chronic hypercapnia affects stress coping mechanisms and growth in Atlantic salmon, highlighting the importance of physiological measures when assessing welfare in high CO2 systems.
Article
Agricultural Engineering
J. B. Ulvund, S. Engebretsen, J. A. Alfredsen, T. Kristensen, H. A. Urke, P. A. Jansen
Summary: This study investigated behavioral patterns of Atlantic salmon exposed to artificial underwater lights using acoustic telemetry data and wavelet analysis. The results demonstrated the utility of wavelet analysis as a timely surveillance tool when investigating behavioral patterns in fish, particularly the individual response of farmed salmon to artificial lighting in an industrial setting. The swimming depth patterns of Atlantic salmon changed after the introduction of underwater lights, showing the potential impact of artificial lighting on fish behavior.
AQUACULTURAL ENGINEERING
(2021)
Article
Biotechnology & Applied Microbiology
Carolina P. Moraleda, Diego Robledo, Alejandro P. Gutierrez, Jorge del-Pozo, Jose M. Yanez, Ross D. Houston
Summary: The resistance to SRS is a polygenic trait, and this study has identified relevant genes and pathways that are likely to play a role in mediating genetic resistance through genome-wide association analysis and RNA-sequencing.
Article
Biotechnology & Applied Microbiology
Ophelie Gervais, Athina Papadopoulou, Remi Gratacap, Borghild Hillestad, Alan E. Tinch, Samuel A. M. Martin, Ross D. Houston, Diego Robledo
Summary: This study investigates the transcriptomic responses of ISAV-infected salmon with contrasting levels of resistance, revealing that the responses to ISAV are organ-specific with a strong immune response observed in the head kidney. Other biological processes such as ubiquitination and ribosomal processing also play a role during early infection.
Article
Fisheries
Emile Vadboncoeur, Charlotte Nelson, Jennifer R. Hall, Kathy A. Clow, Rebeccah M. Sandrelli, Colin J. Brauner, Andrew K. Swanson, A. Kurt Gamperl
Summary: Atlantic salmon reared in sea-cages in cold temperatures experience decreased growth performance, osmoregulatory disturbance, liver dysfunction, stress, opportunistic infections, and increased mortality. In this laboratory experiment, Atlantic salmon post-smolts were exposed to a gradual decline in temperature, resulting in reduced growth and appetite, disruption of osmoregulation, increased expression of stress-related genes, and symptoms of liver dysfunction. At the lowest temperature, mortalities were observed, often associated with snout ulceration/erosion and fin rot.
Article
Endocrinology & Metabolism
Floriana Lai, Muhammad R. Royan, Ana S. Gomes, Marit Espe, Anders Aksnes, Birgitta Norberg, Virginie Gelebart, Ivar Ronnestad
Summary: The study identified four crf1 genes in Atlantic salmon, distributed widely in the brain, especially in post-smolt stage. Results showed that mRNA abundance of crf1 paralogs was dependent on stress exposure regime, with different responses in various brain regions.
GENERAL AND COMPARATIVE ENDOCRINOLOGY
(2021)
Article
Engineering, Marine
Bibbi Maria Kallay Hjelle, Albert Kjartan Dagbjartarson Imsland, Pablo Vigo Balseiro, Sigurd Olav Handeland
Summary: The AcuLice system, which uses a composite acoustic sound image, has been shown to effectively reduce the number of salmon lice on Atlantic salmon without causing additional stress to the fish.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Fisheries
Francisco Furtado, Mette W. Breiland, David Strand, Gerrit Timmerhaus, Danilo Carletto, Lars-Flemming Pedersen, Fernando Afonso, Carlo C. Lazado
Summary: The study investigated the involvement of oxidative stress in amoebic gill disease in Atlantic salmon and evaluated the response of molecular biomarkers to the chemotherapeutic peracetic acid. Results showed that the disease did not cause systemic oxidative stress, but the expression of oxidative stress biomarkers changed when affected fish were exposed to the chemotherapeutic. The gills and olfactory organ demonstrated distinct patterns of gene expression in AGD-infected-PAA-treated fish.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Psychology, Biological
Erik Hoglund, Maria Moltesen, Maria Filipa Castanheira, Per-Ove Thornqvist, Patricia I. M. Silva, Oyvind Overli, Catarina Martins, Svante Winberg
PHYSIOLOGY & BEHAVIOR
(2020)
Article
Engineering, Environmental
Laura E. Vossen, Daniel Cerveny, Marcus Osterkrans, Per-Ove Thornqvist, Fredrik Jutfelt, Jerker Fick, Tomas Brodin, Svante Winberg
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Review
Biochemical Research Methods
Lior Bikovski, Lianne Robinson, Asa Konradsson-Geuken, Klas Kullander, Thomas Viereckel, Svante Winberg, Erika Roman, Michael Tsoory
JOURNAL OF NEUROSCIENCE METHODS
(2020)
Article
Environmental Sciences
Laura E. Vossen, Daniel Cerveny, Oly Sen Sarma, Per-Ove Thornqvist, Fredrik Jutfelt, Jerker Fick, Tomas Brodin, Svante Winberg
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Veterinary Sciences
Gudrun S. Boge, Karolina Engdahl, Annika Bergstrom, Ulf Emanuelson, Jeanette Hanson, Odd Hoglund, Elena R. Moldal, Eystein Skjerve, Randi Krontveit
PREVENTIVE VETERINARY MEDICINE
(2020)
Article
Behavioral Sciences
Murilo S. de Abreu, Caio Maximino, Sonia C. Cardoso, Cristiana Marques, Ana F. N. Pimentel, Elona Mece, Svante Winberg, Leonardo J. G. Barcellos, Marta C. Soares
HORMONES AND BEHAVIOR
(2020)
Article
Fisheries
Ragnar Thorarinsson, Jeffrey C. Wolf, Makoto Inami, Lisa Phillips, Ginny Jones, Alicia M. Macdonald, Jose F. Rodriguez, Hilde Sindre, Eystein Skjerve, Espen Rimstad, Oystein Evensen
Summary: The DNA vaccine group showed significantly higher SAV3 neutralizing antibody titers after the immunization period, lower SAV3 viremia levels at 19 days post-challenge, reduced transmission of SAV3 to naive fish, higher weight gain, and reduced prevalence/severity of SAV-induced morphological changes in target organs. Additionally, the DNA vaccine group had significantly higher post-challenge survival compared to the Saline group.
FISH & SHELLFISH IMMUNOLOGY
(2021)
Article
Agriculture, Dairy & Animal Science
J. F. Johnsen, I. H. Holmoy, C. M. Mejdell, K. Ellingsen-Dalskau, O. Osteras, A. Dosen, E. Skjerve, A. Nodtvedt
Summary: The study aimed to investigate the associations between management factors, compliance with legislation, and calf mortality rates. The results showed that a lack of water access was associated with higher calf mortality rates, and herds with registered calf disease events had a higher mortality rate ratio.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Food Science & Technology
Gunvor Elise Nagel Gravning, Ole-Johan Rotterud, Solfrid Bjorkoy, Merete Forseth, Eystein Skjerve, Ann-Katrin Llarena, Astrid Lian, Gro S. Johannessen, Sigrun J. Hauge
Summary: This study evaluated four different sampling methods for quantification of bacterial contamination of broiler carcasses and found that the whole-carcass rinse sampling method provided the best reflection of the extent of carcass contamination.
Article
Biochemistry & Molecular Biology
Tobias Backstroem, Per-Ove Thoernqvist, Svante Winberg
Summary: Research shows that in agonistic interactions, dominant rainbow trout exhibit higher aggression and feeding levels, while subordinate fish show upregulation of AVT receptors, CRF mRNA, and cortisol levels.
FISH PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Neurosciences
Anish Behere, Per-Ove Thornqvist, Svante Winberg, Martin Ingelsson, Joakim Bergstrom, Sara Ekmark-Lewen
Summary: The study revealed an abundance of previously undetected α-syn oligomers in the midbrain of young A30P transgenic mice, while phosphorylated and proteinase k-resistant α-syn species were observed to a larger extent in aged mice. Although no loss of dopaminergic neurons was detected in A30P transgenic mice, dysregulation in the monoaminergic system was recorded in older mice.
JOURNAL OF NEUROSCIENCE RESEARCH
(2021)
Review
Biology
Svante Winberg, Lynne Sneddon
Summary: Dominance-based social hierarchies significantly influence the behavior, physiology, and development of teleost fishes. Fights for social dominance are influenced by heritable factors and previous social experience, with individuals displaying a proactive coping style having an advantage. Agonistic behavior is controlled by the brain's social decision-making network and its monoaminergic systems.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Alejandra Godino-Gimeno, Per-Ove Thornqvist, Mauro Chivite, Jesus M. Miguez, Svante Winberg, Jose Miguel Cerda-Reverter
Summary: In the past decade, the zebrafish has become an important model organism for studying behavior, neurological disorders, and metabolic diseases. This study used the zebrafish model to investigate how obesity induced by overfeeding affects emotional and cognitive processes. The results showed that obesity impaired short-term memory in zebrafish, but had no effect on anxiety-like behavior.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Multidisciplinary Sciences
Johanna Axling, Laura E. Vossen, Erik Peterson, Svante Winberg
Summary: Atlantic salmon (Salmo salar) in aquaculture farms often display aggressive behavior, causing damage and stress. This study aimed to develop a method to accurately assess and predict individual aggression in Baltic salmon (Salmo salar L.) reared in hatcheries. By conducting open field and mirror image stimulation tests, we found that aggression correlated with certain behavioral traits and that the mirror test was effective for profiling aggression in large-scale studies.
Article
Fisheries
Johanna Axling, Hampus Jakobsson, Natalia Frymus, Per-Ove Thornqvist, Erik Petersson, Svante Winberg
Summary: Zebrafish, as an important model organism in behavioural neuroscience, show significant behavioural differences among different strains. In this study, it was found that wild larvae had longer total distance moved and higher variance compared to AB larvae, indicating a more active and diverse behavioural phenotype. Additionally, the brain expression of drd2b, a dopamine receptor, was significantly higher in wild larvae than in AB larvae at 30 dpf.
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.