Article
Fisheries
Heidi Moe Fore, Trine Thorvaldsen
Summary: The study investigates escape incidents from Norwegian fish farms between 2010 and 2018, finding that most incidents are caused by technological factors, with net hole breakage being the most common cause of escape. These incidents may also have underlying human and organizational factors contributing to the escapes.
Article
Food Science & Technology
Xiao-Yu Ma, Zhu-Long Shao, Xiao-Ping Yu, Zheng-Liang Wang
Summary: A precise method for identifying and quantifying adulterated Atlantic salmon with rainbow trout based on droplet digital PCR (ddPCR) testing was developed. This method exhibited high levels of accuracy, stability, sensitivity, and practicability, suitable for applications in the routine surveillance and quality assurance of salmon products.
Article
Fisheries
Brian P. Morrison, Kathryn S. Peiman
Summary: This passage tells the history of Lake Ontario Atlantic salmon cultivation and challenges the narrative of the perceived benefits of hatchery efforts. It suggests that these efforts actually contributed negatively to the decline of the species in Lake Ontario.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2022)
Article
Biology
Marco Rozas-Serri, Rodolfo Correa, Romina Walker-Vergara, Darling Conuecar, Soraya Barrientos, Camila Leiva, Ricardo Ildefonso, Carolina Senn, Andrea Pena
Summary: This study provides integrated reference intervals for 44 blood biomarkers for different age groups of intensively farmed Atlantic salmon, coho salmon, and rainbow trout in Chile. The variability of blood biomarkers depends on species, age range, and their interactions, highlighting the importance of improving health and welfare management for farmed fish.
Article
Environmental Sciences
Alexander J. Gatch, Stacy L. Furgal, Dimitry Gorsky, J. Ellen Marsden, Zy F. Biesinger, Brian F. Lantry
Summary: This study used acoustic telemetry to track and estimate post-stocking mortality of one-year-old hatchery-reared lake trout in Lake Ontario. The results showed that mortality increased over time, with the majority of lake trout leaving the stocking location within two months and entering deep water when the water temperature at the stocking site became unfavorable. Additionally, lake trout exhibited large movements within the first hour post-release, with differences in movement distance between day and night.
JOURNAL OF GREAT LAKES RESEARCH
(2022)
Article
Fisheries
Betty San Martin, Marcela Fresno, Aldo Maddaleno, Jose Miguel Burgos, Arturo Anadon, Sebastian Zavala, Lisette Lapierre, Ekaterina Pokrant, Javiera Cornejo
Summary: This research aimed to estimate the withdrawal time for oxytetracycline in rainbow trout and Atlantic salmon after intraperitoneal administration. The study found that most samples met the market standards with a maximum residue limit of 200 μg/kg, but not with a limit of 10 μg/kg, and withdrawal times varied depending on the standard and species.
Article
Fisheries
Thomas W. K. Fraser, Hilde Leroy, Tom J. Hansen, Jon Egil Skjaeraasen, Valentina Tronci, Cindy P. Pedrosa, Per Gunnar Fjelldal, Tom Ole Nilsen
Summary: The study indicates that triploid Atlantic salmon and hybrid strains show enhanced growth performance compared to diploid salmon in an aquaculture setting, making them more suitable for commercial breeding.
Article
Veterinary Sciences
Aurelien Delaval, Martine Roysted Solas, Helge Skoglund, Anne Gro Vea Salvanes
Summary: Sagittal otoliths in hatchery-reared juvenile Atlantic salmon can be affected by vaterite, which may impair hearing and balance. However, structural tank enrichment did not directly affect vaterite formation. After release into the wild, salmon fry with vaterite otoliths were less likely to be eaten by predators and more likely to be recaptured in the river.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Article
Fisheries
Turid Synnove Aas, Torbjorn Asgard, Trine Ytrestoyl
Summary: This study investigated the composition and nutrient content of Atlantic salmon and rainbow trout produced in Norway in 2020, showing variations in these factors among different geographic locations and seasons.
AQUACULTURE REPORTS
(2022)
Article
Fisheries
Gerrit Timmerhaus, Carlo C. Lazado, Nikko Alvin R. Cabillon, Britt Kristin Megard Reiten, Lill-Heidi Johansen
Summary: Research on the effects of different water velocities on the growth, muscle development, and welfare of post-smolts revealed that the optimal water velocity for long-term rearing of salmon post-smolts in RAS is likely slightly above 1 body length per second.
Article
Behavioral Sciences
M. G. Anderson, A. M. Campbell, D. D. Kuhn, S. A. Smith, L. Jacobs
Summary: Environmental conditions, such as complexity and stocking density, have an impact on animal emotion and affective state. This study investigated the effects of environmental complexity and stocking density on the affective state of rainbow trout. The results showed that fish housed in high-density tanks entered all chambers faster and exhibited more optimism for receiving a feed reward compared to fish in low-density tanks. Tank complexity did not affect the test outcomes.
Article
Fisheries
Christine E. Verhille, Anthony P. Farrell
Summary: This study compares the swimming endurance and survival rate of diploid and triploid trout, finding that triploid trout have lower swimming endurance, leading to lower survival rates in high temperature environments. This empirical study provides support for the connection between fish locomotion performance and fitness.
Article
Multidisciplinary Sciences
Pablo Caceres, Agustin Barria, Kris A. Christensen, Liane N. Bassini, Katharina Correa, Baltasar Garcia, Jean P. Lhorente, Jose M. Yanez
Summary: This study identified genomic regions associated with sea lice resistance in Atlantic salmon and rainbow trout through single-step Genome-Wide Association studies. Genes related to immune response, cytoskeleton function, and cell migration were found in important genomic regions for both species. Some genes were also involved in differences in inflammation response between resistant and susceptible fish of both species.
SCIENTIFIC REPORTS
(2021)
Article
Fisheries
A. J. Nash, K. W. Vollset, E. M. Hanssen, S. Berhe, A. G. Salvanes, T. E. Isaksen, B. T. Barlaup, R. J. Lennox
Summary: This study tracked the depth use of 22 Atlantic salmon smolts and 21 brown trout in a basin of Lake Evanger, Norway, and found that both species tended to distribute relatively shallow in the lake and exhibited overlapping vertical distribution. Despite the behavior of the salmon smolts aligning with the risk allocation hypothesis, a significant number of tagged smolts fell victim to predation.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2022)
Article
Fisheries
Jeong-Hyeon Cho, Jinho Bae, In Joon Hwang
Summary: The present study investigated the effects of black soldier fly pre-pupae meal on the growth performance and health status of rainbow trout. The results suggest that black soldier fly meal can be a beneficial feed ingredient for juvenile rainbow trout, but high stocking densities can negatively influence growth and immune responses.
AQUACULTURE REPORTS
(2022)
