Article
Behavioral Sciences
P. Tatemoto, G. Valenca-Silva, Mariana R. Queiroz, Donald M. Broom
Summary: Research has shown that keeping animals in barren environments for long periods can lead to poor welfare, while maintaining them in enriched environments helps improve their emotional states and welfare.
Article
Environmental Sciences
Shaoying Xing, Ping Li, Shuwen He, Zhihan Cao, Xu Wang, Xuqian Cao, Bin Liu, Chengzhuang Chen, Hong You, Zhi-Hua Li
Summary: This study investigated the effects of TPT exposure on osmoregulation and energy metabolism in gill under different salinity. The results showed that TPT exposure caused changes in gill tissue morphology and affected the expression of related genes. Furthermore, TPT exposure at different salinity levels also influenced the activities of Na+- K+-ATPase, Ca2+-Mg2+-ATPase, succinate dehydrogenase, and lactate dehydrogenase in the fish.
MARINE ENVIRONMENTAL RESEARCH
(2022)
Article
Veterinary Sciences
Caroline Marques Maia, Nina Pacheco Capelini Alves, Patricia Tatemoto
Summary: The study found that there is a high variation in individual preference responses for shelter colors among Nile tilapia, with red shelters clearly being avoided. However, a definitive preference conclusion could not be reached. It is recommended to avoid using red shelters for rearing Nile tilapia and individual variability should be taken into consideration whenever possible.
JOURNAL OF APPLIED ANIMAL WELFARE SCIENCE
(2021)
Article
Biology
Luisa M. Vera, Gonzalo de Alba, Silvere Santos, Tim M. Szewczyk, Simon A. Mackenzie, Francisco J. Sanchez-Vazquez, Sonia Rey Planellas
Summary: This study characterizes the daily rhythms of thermal preference in zebrafish and tilapia. Both species display consistent daily rhythms of thermal preference with higher temperatures chosen during the second half of the light phase and lower temperatures at the end of the dark phase. Interestingly, only tilapia show a consistent preference for higher temperatures when moved to an experimental tank.
JOURNAL OF THERMAL BIOLOGY
(2023)
Article
Biodiversity Conservation
Naor S. Fialho, Wagner C. Valenti, Fernanda S. David, Elisa M. Godoy, Danilo C. Proenca, Rodrigo Roubach, Guilherme Wolff Bueno
Summary: This study evaluated the environmental sustainability of Nile tilapia net-cage farms of different sizes using environmental sustainability indicators and benchmarks. Results showed that environmental sustainability is independent of farm size, with factors like feed composition, management techniques, and water temperature being more critical. The use of benchmarking tools can provide reference values for each environmental sustainability indicator, allowing improvements to reach desirable states.
ECOLOGICAL INDICATORS
(2021)
Article
Fisheries
Filipe Chagas Teodozio de Araujo, Ricardo Pereira Ribeiro, Eric Costa Campos, Humberto Todesco, Karla Miky Tsujii, Lais Santana Celestino Mantovani, Rodrigo Feuerharmel Ribeiro, Jonathan Coimbra Carvalho, Jaisa Casetta, Nelson Mauricio Lopera-Barrero, Eliane Gasparino, Carlos Antonio Lopes de Oliveira
Summary: This study investigated the use of blood glucose as a selection criterion to enhance the adaptation of fish to the farming environment. The study found that blood glucose has sufficient genetic variability and is positively correlated with live weight, making it a suitable indicator for selecting fish. Additionally, the fish with high Estimated Breeding Value (EBV) for blood glucose demonstrated better adaptation to handling stress.
Article
Biology
Olof Leimar, Sasha R. X. Dall, Alasdair I. Houston, John M. McNamara
Summary: Interactions in social groups can promote behavioral specialization, and individuals achieve specialization by learning to choose specific actions. Specialization develops more rapidly when there are few neighbors in a network and when learning rates are high. Frequency-dependent competition for resources is the main driver of specialization.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Agriculture, Dairy & Animal Science
Bruno Camargo-dos-Santos, Clarissa Lerois Carlos, Joao Favero-Neto, Nina Pacheco Capelini Alves, Bruno Bastos Goncalves, Percilia Cardoso Giaquinto
Summary: Aquaculture is the fastest-growing production segment, requiring clear guidelines on fish rearing, stunning and slaughter for animal welfare. Validating dorsal fin erection as a painless indicator of sensibility in Nile tilapia is effective and practical in large-scale production systems. However, the presence of an erect dorsal fin alone does not ensure fish insensibility, necessitating the use of other visual sensibility indicators.
Article
Agriculture, Dairy & Animal Science
Samanta Seganfreddo, Diletta Fornasiero, Marta De Santis, Franco Mutinelli, Simona Normando, Laura Contalbrigo
Summary: Animal welfare science is facing the challenge of quantifying animal emotions. This study focused on donkeys and aimed to identify indicators of positive or negative emotions using non-invasive parameters. The results showed differences in behavior and heart rate variability between rewarding and frustrating situations. Although the sample size was small, this preliminary investigation suggests promising outcomes for further research on emotional states in donkeys.
Article
Agriculture, Dairy & Animal Science
Sarah Talbot, Rafael Freire, Skye Wassens
Summary: This study aimed to investigate the personality structure of domestic ferrets using owner-reported traits. Four key personality dimensions were identified, with male ferrets being rated as more sociable, and female ferrets as more attentive and neurotic. Additionally, extraversion generally decreases with age. These findings can inform discussions on the evolutionary significance of animal personality and improve welfare management by catering to individual needs.
Article
Multidisciplinary Sciences
Gergely Horvath, Laszlo Zsolt Garamszegi, Gabor Herczeg
Summary: The predictability of behavior is an important component of an individual's behavioral strategy, and it is correlated with behavioral type, but the direction of the correlation can vary.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Article
Marine & Freshwater Biology
Carlos A. Gracida-Juarez, Christos C. Ioannou, Martin J. Genner
Summary: Invasive African Nile tilapia has a significant impact on the biodiversity of freshwater systems, with indications of competitive effects on native species. This study in Mexico found that Nile tilapia is more active and aggressive than the native Mayan cichlid and that the latter's behavior is strongly influenced by the former. The Nile tilapia's broad environmental tolerance gives it an advantage over native species, which may contribute to its invasive success in a changing world.
Article
Fisheries
Nesreen A. Mohamed, Michel F. Saad, Mustafa Shukry, Abeer M. S. El-Keredy, Omaima Nasif, Hien Van Doan, Mahmoud A. O. Dawood
Summary: The study showed that high salinity stress significantly affects the physiological parameters and hormone concentrations of Nile tilapia, leading to tissue damage.
AQUACULTURE REPORTS
(2021)
Article
Fisheries
Gonzalo de Alba, Francesca Conti, Jorge Sanchez, Laura Michelle Godoy, Francisco Javier Sanchez-Vazquez, Jose Fernando Lopez-Olmeda, Luisa Maria Vera
Summary: This study investigated the effect of light and feeding regimes on the daily rhythm of thermal preference in Nile tilapia. The results showed that regardless of the feeding/fasting protocol, a daily rhythm of temperature preference was observed, with higher temperatures chosen at dusk and cooler temperatures chosen at dawn. The study also found that fish exhibited a stress-induced hyperthermia response when placed in a thermal gradient environment for the first time. Feeding time and mode also influenced the thermal preference of the fish.
Article
Environmental Sciences
Abdallah Tageldein Mansour, Amany M. Diab, Riad H. Khalil, Elsayed A. Eldessouki, Nasser El-Sabbagh, Salma I. Elsamannoudy, Nehal A. Younis
Summary: The use of sweet basil extracts can significantly improve the growth performance and immune-antioxidant status of Nile tilapia.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Sonia Rey, Xingkun Jin, Borge Damsgard, Marie-Laure Begout, Simon Mackenzie
Summary: The study investigated the transferability of personality-specific mRNA transcripts across distantly-related fish species and the conservation of a proactive transcriptome signature across three different species. Results showed that differential mRNA transcript abundance in the brain appears to be partially conserved across species relative to personality type, suggesting functional conservation of cross-species molecular signatures related to proactive behavior.
Article
Biotechnology & Applied Microbiology
B. Reis, L. Ramos-Pinto, J. A. Martos-Sitcha, M. Machado, R. Azeredo, S. Fernandez-Boo, S. Engrola, C. Unamunzaga, J. Calduch-Giner, L. E. C. Conceicao, T. Silva, J. Dias, B. Costas, J. Perez-Sanchez
Summary: This study evaluated the effects of incorporating Phaeodactylum tricornutum in fish feed on fish health and performance. Results indicate that the BC diet may have a potential stimulatory effect on enhancing immune response.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Review
Fisheries
Michelle Orietta Barreto, Sonia Rey Planellas, Yifei Yang, Clive Phillips, Kris Descovich
Summary: This review presents the latest developments in fish welfare assessments, focusing on different monitoring methods and the challenges of practical application in the aquaculture industry. Newer and more refined alternatives to traditional methods show promise for future research aimed at increasing precision, automation, and practical applicability.
REVIEWS IN AQUACULTURE
(2022)
Review
Fisheries
Carlos Garcia de Leaniz, Carolina Gutierrez Rabadan, Sara I. Barrento, Rebecca Stringwell, Paul N. Howes, Ben A. Whittaker, Jessica F. Minett, Robert G. Smith, Craig L. Pooley, Ben J. Overland, Leigh Biddiscombe, Richard Lloyd, Sofia Consuegra, Jake K. Maddocks, Paul T. J. Deacon, Ben T. Jennings, Sonia Rey Planellas, Amanda Deakin, Amber I. Moore, Daniel. Phillips, Guillermo Bardera, Maria F. Castanheira, Maria Scolamacchia, Nancy Clarke, Ollie Parker, John Avizienius, Malcolm Johnstone, Michalis Pavlidis
Summary: Through a Delphi approach, our study provides 16 practical solutions for improving lumpfish welfare, emphasizing the importance of indicators such as fin erosion and body damage. Additionally, significant differences between Atlantic salmon and lumpfish in behavior, habitat preferences, and nutritional needs were identified.
REVIEWS IN AQUACULTURE
(2022)
Article
Veterinary Sciences
Susan Jarvis, Maureen A. Ellis, James F. Turnbull, Sonia Rey Planellas, Francoise Wemelsfelder
Summary: There is a growing consensus that fish are sentient beings capable of experiencing pain and suffering, leading to the challenge of assessing the welfare of farmed fish. This study explores the use of Qualitative Behavioral Assessment (QBA) as a potential tool for monitoring the welfare of farmed salmon. The results show promise in using QBA to efficiently assess the welfare of juvenile salmon under farmed conditions.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Article
Fisheries
A. Roque, N. Gras, S. Rey-Planellas, E. Fatsini, J. Pallisera, N. Duncan, I Munoz, A. Velarde, M. D. Hernandez
Summary: The study evaluated the welfare of Gilthead seabream stunned by two different gas mixtures, showing that using gas stunning before immersion in ice slurry is more humane than directly killing in ice slurry. The fish started to lose consciousness when they lost balance and sank to the bottom of the tank, with no differences found in meat quality among the treatments.
Review
Fisheries
Bernat Morro, Keith Davidson, Thomas P. Adams, Lynne Falconer, Max Holloway, Andrew Dale, Dmitry Aleynik, Philipp R. Thies, Faryal Khalid, Jon Hardwick, Helen Smith, Philip A. Gillibrand, Sonia Rey-Planellas
Summary: In recent years, offshore aquaculture has gained momentum with the production of marine fish species being relocated offshore. This review revisits past predictions and expectations with a focus on oceanographic features, fish diseases, and operational challenges. Understanding the physical capabilities of farmed fish species, studying potential site oceanography, and developing an economic plan are key to successful offshore aquaculture.
REVIEWS IN AQUACULTURE
(2022)
Article
Biochemistry & Molecular Biology
Denise Schrama, Audia Raposo de Magalhaes, Marco Cerqueira, Raquel Carrilho, Ana Paula Farinha, Ana M. Rosa da Costa, Amparo Goncalves, Annette Kuehn, Dominique Revets, Sebastien Planchon, Sofia Engrola, Pedro M. Rodrigues
Summary: The study aimed to modulate beta-parvalbumin expression and allergenicity in farmed European seabass by supplementing fish diets with creatine and EDTA. While results showed no decrease in allergenicity with creatine or EDTA supplementation, alterations in muscle and liver metabolic profiles were observed.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS
(2022)
Article
Fisheries
A. I. G. Raposo, F. Soares, L. E. C. Conceicao, L. M. P. Valente, T. S. Silva
Summary: Mathematical models can be used to estimate the body composition of fish without sacrificing animals. In this study, Nile tilapia body composition data were collected from 138 scientific publications, and predictive models were developed using different combinations of models and calibration methods. The results showed that model predictions are influenced by the type of model, calibration method, and amount of calibration data available. The best predictive models for Nile tilapia body composition were the allometric model and a robust hybrid model, both calibrated assuming multiplicative error.
Article
Biochemistry & Molecular Biology
Claudia Raposo de Magalhaes, Ana Paula Farinha, Gavin Blackburn, Phillip D. Whitfield, Raquel Carrilho, Denise Schrama, Marco Cerqueira, Pedro M. Rodrigues
Summary: The study of molecular mechanisms of stress appraisal in farmed fish is crucial for sustainable aquaculture. Stress exposure can lead to adaptation or metabolic shutdown with irreversible damage on fish performance, welfare, and survival. Multiomics analysis of stress proteome and metabolome in Sparus aurata revealed disturbed pathways in the liver, the central organ of stress response. Functional analysis identified key regulatory components and signaling pathways modulated under different stress conditions, providing insights into metabolic reprogramming and potential stress markers for fish welfare research.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agriculture, Dairy & Animal Science
Denise Schrama, Claudia Raposo de Magalhaes, Marco Cerqueira, Raquel Carrilho, Dominique Revets, Annette Kuehn, Sofia Engrola, Pedro M. Rodrigues
Summary: This study focused on the characterization of parvalbumin in gilthead seabream and European seabass. It found that parvalbumins from both species are susceptible to digestion and processing techniques. These findings contribute to further research on fish allergenicity.
Article
Biology
Luisa M. Vera, Gonzalo de Alba, Silvere Santos, Tim M. Szewczyk, Simon A. Mackenzie, Francisco J. Sanchez-Vazquez, Sonia Rey Planellas
Summary: This study characterizes the daily rhythms of thermal preference in zebrafish and tilapia. Both species display consistent daily rhythms of thermal preference with higher temperatures chosen during the second half of the light phase and lower temperatures at the end of the dark phase. Interestingly, only tilapia show a consistent preference for higher temperatures when moved to an experimental tank.
JOURNAL OF THERMAL BIOLOGY
(2023)
Article
Engineering, Marine
Filipe M. R. C. Soares, Ana M. D. Nobre, Andreia I. G. Raposo, Rodrigo C. P. Mendes, Sofia A. D. Engrola, Paulo J. A. P. Rema, Luis E. C. Conceicao, Tome S. Silva
Summary: This manuscript introduces the FEEDNETICS model, a detailed mechanistic nutrient-based model for fish farming. The model consists of a fish model, simulating fish growth and nutrient utilization at the individual level, and a farm model, upscaling the information to the population level. The model was calibrated and validated for five commercially relevant farmed fish species, and showed consistent results with a mean absolute percentage error between 11.7 and 13.8%. Several use cases were presented to demonstrate the tool's potential in experimental trial design, interpretation, and evaluating nutritional and environmental effects at the farm level. FEEDNETICS contributes to more efficient fish farming by transforming data into useful information.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Agriculture, Multidisciplinary
Jessica A. Jimenez-Rivera, Anais Boglino, Joel F. Linares-Cordova, Neil J. Duncan, Maria L. Ruiz-Gomez, Sonia Rey-Planellas, Zohar Ibarra-Zatarain
Summary: This study aimed to describe the common behavior of grey mullet under rearing conditions. It found that grey mullet is a species with constant locomotion associated with feeding and showed reduced movement during dark periods. The study also observed that grey mullet is a non-aggressive fish species and has a high predisposition for adaptation to captivity. The behavioral frequencies of grey mullet juveniles were similar among the different tanks, except for bottom feeding. These findings are important for optimizing rearing techniques and welfare in the aquaculture industry.
SPANISH JOURNAL OF AGRICULTURAL RESEARCH
(2022)
Article
Agriculture, Dairy & Animal Science
Fearghal O'Donncha, Caitlin L. Stockwell, Sonia Rey Planellas, Giulia Micallef, Paulito Palmes, Chris Webb, Ramon Filgueira, Jon Grant
Summary: Aquaculture has rapidly expanded to supply more than half of fish for human consumption, leading to the development of Precision Aquaculture concept for data-driven management of fish production. This study analyzes environmental and fish behavior datasets collected at salmon farms in Norway, Scotland, and Canada, demonstrating the importance of variables like temperature and wind conditions in driving fish motion.
FRONTIERS IN ANIMAL SCIENCE
(2021)