Article
Multidisciplinary Sciences
Tormod Haraldstad, Torbjorn Forseth, Esben M. Olsen, Thrond O. Haugen, Erik Hoglund
Summary: This study provides empirical support for the sequential imprinting hypothesis in Atlantic salmon, suggesting that the migration route during the smolt stage can have a significant impact on the subsequent spawning migration. These findings emphasize the importance of ensuring the successful return of adult salmon to their natal spawning grounds.
SCIENTIFIC REPORTS
(2022)
Article
Ecology
Hannele M. Honkanen, Danielle L. Orrell, Matthew Newton, Simon McKelvey, Alastair Stephen, R. Alistair Duguid, Colin E. Adams
Summary: The study found that the success rate of Atlantic salmon migration through standing waters is generally low, possibly due to a lack of navigational cues. The impact of impounded lakes on Atlantic salmon migration is not significantly different from that of naturally draining lakes, and may depend more on factors such as lake basin shape, exit route, and navigational cues available to the fish.
ECOLOGICAL ENGINEERING
(2021)
Article
Ecology
Ross W. Finlay, Russell Poole, Ger Rogan, Eileen Dillane, Deirdre Cotter, Thomas E. Reed
Summary: Migratory species face different parasite communities in different environments, but little is known about the ecophysiological effects of parasites on migratory performance. Research found that natural infection intensities of Pomphorhynchus tereticollis were not associated with reduced osmoregulatory performance or blood glucose levels in hosts, indicating that this parasite does not significantly affect physiological indicators of salmonid smolts.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2021)
Article
Biodiversity Conservation
Knut Wiik Vollset, Robert J. Lennox, Anders Lamberg, Oystein Skaala, Anne Dagrun Sandvik, Harald Saegrov, Eli Kvingedal, Torstein Kristensen, Arne Johan Jensen, Tormod Haraldstad, Bjorn Torgeir Barlaup, Ola Ugedal
Summary: Accurate predictions about the timing of Atlantic salmon smolt migration between freshwater and marine environments are crucial for effective management. This study used data from 41 rivers in Norway to develop a predictive model, finding that air temperature and counting method significantly influenced the timing of smolt emigration. The model suggested that previous national estimates underestimated migration timing in southern populations.
DIVERSITY AND DISTRIBUTIONS
(2021)
Article
Chemistry, Physical
Walter F. Schmidt, Fu Chen, C. Leigh Broadhurst, Jianwei Qin, Michael A. Crawford, Moon S. Kim
Summary: Polyunsaturated fatty acids, such as DHA, DPA, and EPA, have similar structures but differ in their biological activities and utilization in mammalian tissues. Among them, DHA plays a unique role in certain tissues and cannot be substituted by other fatty acids. Research shows that the conformational changes in DHA may be affected by structural analogs.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Fisheries
Robert J. Lennox, Elisabeth Stoger, Lotte S. Dahlmo, Turid Helle, Tore Wiers, Erlend M. Hanssen, Knut Wiik Vollset
Summary: Tagging salmon smolts with passive integrated transponder (PIT) tags has been a common method to monitor phenology. However, the validity of tagging has been questioned. This study found that smolts with longer length migrated earlier, but the tag types did not affect the timing of migration. Tagging treatment did not have an effect on smolts' growth.
JOURNAL OF FISH BIOLOGY
(2022)
Article
Fisheries
B. Hart, R. Schurr, N. Narendranath, A. Kuehnle, S. M. Colombo
Summary: The study demonstrates that whole cell Schizochytrium sp. (Sc) offers a highly digestible (98%) source of PUFAs and protein, without the need for oil extraction or cell disruption.
Article
Fisheries
J. L. A. Jensen, J. F. Strom, A. Nikolopoulos, R. Primicerio, J. Skarohamar, B. J. Atencio, J. E. T. Strand, P. A. Bjorn, T. Bohn
Summary: This study investigated the migratory behavior of Atlantic salmon post-smolts in a high-latitude Norwegian fjord. The majority of post-smolts migrated unidirectionally out of the fjord at relatively high speeds, with progression rates increasing with distance from the river. While post-smolts showed an affinity for lower salinities in the inner fjord, their exit from the fjord system in the outer part was influenced by higher surface salinities and lower temperatures. The findings indicate that macro-habitat selection of post-smolts is influenced by environmental factors, although micro-habitat level relationships were not confirmed.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
A. J. Bowden, M. B. Adams, S. J. Andrewartha, N. G. Elliott, P. B. Frappell, T. D. Clark
Summary: The study found that as amoebic gill disease progresses, the basal energy requirements of Atlantic salmon increase, aerobic scope decreases, and hypoxia tolerance weakens.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY
(2022)
Article
Environmental Sciences
Sebastien Erpicum, Vasileios Kitsikoudis, Pierre Archambeau, Benjamin Dewals, Michel Pirotton
Summary: The construction of dams and weirs disrupt fish migration and threaten aquatic biodiversity. Fish passages aim to restore river connectivity, but designing effective fish passages is challenging. This study investigated how the characteristics of a trash rack at the entrance of a fish passage affect fish behavior and the passage's effectiveness. The results showed that a trash rack acts as an obstacle to fish passing through the downstream passage, and it should be avoided if possible.
Article
Fisheries
Ross S. Glover, Alastair Stephen
Summary: Trap-and-transport is commonly used for migratory fish to bypass river obstructions. The study conducted on the River Conon in Scotland found that the survival rate of Atlantic salmon smolts released at night using the novel automatic release cage (ARC) was over 40% higher than those released during daylight. This suggests that ARCs can be a cost-effective and reliable method for fishery managers to improve smolt survival.
JOURNAL OF FISH BIOLOGY
(2023)
Article
Chemistry, Applied
Amalie Moxness Reksten, Quang Tri Ho, Ole Jakob Nostbakken, Maria Wik Markhus, Marian Kjellevold, Annbjorg Bokevoll, Rita Hannisdal, Livar Froyland, Lise Madsen, Lisbeth Dahl
Summary: The changes in the feed of farmed Atlantic salmon have affected the nutritional value of the fish, with a decrease of over 60% in the contents of EPA and DHA. However, farmed Atlantic salmon still remains an important source of EPA, DHA, protein, selenium, vitamin B-12, and vitamin D-3.
Article
Fisheries
Kyla Meagan Zatti, Monica Juarez Ceballos, Victoria Valdenegro Vega, Vegard Denstadli
Summary: The global goal of developing sustainable aquafeed has faced challenges in sourcing raw materials, particularly the limited availability of fish oil. However, commercial algal alternatives have emerged as a potential solution. A study was conducted to evaluate the full replacement of fish oil with algae oil in Atlantic salmon feed and the results showed that it effectively reduced the levels of contaminants in the fish fillet without compromising its growth performance, health, and final product quality. This study highlights the importance of using algal alternatives in aquafeed to improve both food safety and sustainability.
Article
Fisheries
Morten Omholt Alver, Martin Fore, Jo Arve Alfredsen
Summary: The research team developed a mathematical model based on the advection-diffusion equation to predict dissolved oxygen levels in fish sea cages. The model was tested in a large production unit and performed well, but may require more detailed information on fish behavior and current conditions within the cages to improve accuracy.
Article
Ecology
Olivia M. Simmons, Stephen D. Gregory, Phillipa K. Gillingham, William D. Riley, Luke J. Scott, J. Robert Britton
Summary: This study investigated the impacts of various biological and environmental factors on the migration timing of individual Atlantic salmon smolts. It found that warmer winters, daily changes in water temperature and discharge, as well as the location and size of the smolts influenced their migration timing. The results highlight the importance of considering a wide range of variables in understanding and predicting the phenology of smolt migrations.
FRESHWATER BIOLOGY
(2021)
Article
Fisheries
Narissa Bax, Camilla Novaglio, Kimberley H. Maxwell, Koen Meyers, Joy McCann, Sarah Jennings, Stewart Frusher, Elizabeth A. Fulton, Melissa Nursey-Bray, Mibu Fischer, Kelli Anderson, Cayne Layton, Gholam Reza Emad, Karen A. Alexander, Yannick Rousseau, Zau Lunn, Chris G. Carter
Summary: This study discusses human reliance on coastal resources, challenges stemming from technological advancements, and the need for sustainable development. It suggests collaboration among multidisciplinary teams and the use of case studies to identify pathways towards sustainable marine utilization.
REVIEWS IN FISH BIOLOGY AND FISHERIES
(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
Marco Foddai, Chris G. Carter, Pollyanna E. Hilder, Harley Gurr, Nicole Ruff
Summary: This study found that rearing temperature and dietary energy did not have significant effects on cardiac morphology of large Tasmanian Atlantic salmon, with most fish having fat around the heart and a tendency towards a rounded ventricle and a more obtuse angle of the bulbus arteriosus.
JOURNAL OF FISH DISEASES
(2022)
Review
Fisheries
Bruno C. Araujo, Jane E. Symonds, Brett D. Glencross, Chris G. Carter, Seumas P. Walker, Matthew R. Miller
Summary: This article compares the nutritional requirements of Chinook salmon and other farmed salmonids, explores the nutritional status and literature related to Chinook salmon, and highlights the main gaps in the literature.
NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH
(2023)
Review
Microbiology
Camila Espejo, Amanda L. Patchett, Richard Wilson, A. Bruce Lyons, Gregory M. Woods
Summary: Devil Facial Tumour Disease (DFTD) is a new infectious disease that has improved diagnostic techniques through the generation of disease-specific knowledge. Research has identified the cancerous characteristics and molecular mechanisms of this disease, leading to the development of various diagnostic methods for early detection and diagnosis.
Article
Evolutionary Biology
Ambrocio Melvin A. Matias, Iva Popovic, Joshua A. Thia, Ira R. Cooke, Gergely Torda, Vimoksalehi Lukoschek, Line K. Bay, Sun W. Kim, Cynthia Riginos
Summary: Genomic studies have revealed extensive hidden diversity in reef-building corals, which is highly underestimated in terms of evolutionary and ecological relevance. Additionally, symbiotic algae within coral host species can provide adaptive responses to environmental stress and may contribute to coral genetic variation. This study examines the genetic variation of Acropora tenuis coral host and its associated symbiotic algae across the Great Barrier Reef. The results demonstrate three distinct genetic clusters of coral hosts, associated with latitude and inshore-offshore reef position, while symbiotic algae diversity is influenced by reef location relative to shore.
EVOLUTIONARY APPLICATIONS
(2023)
Article
Fisheries
Noah Esmaeili, Chris G. Carter, Richard Wilson, Seumas P. Walker, Matthew R. Miller, Andrew R. Bridle, Tim Young, Andrea C. Alfaro, Olivier Laroche, Jane E. Symonds
Summary: In this study, a multi-omics approach was used to investigate the molecular basis of feed efficiency (FE) in Chinook salmon. The results showed that protein synthesis was enriched in the liver and white muscle tissues of the efficient group, while pathways associated with protein degradation and glucose metabolism were affected in the inefficient group. Metabolite data revealed enrichment in pyruvate metabolism in the efficient group's liver, and phenylalanine, tyrosine, and tryptophan metabolism in the efficient group's plasma. Glutathione metabolism and valine, leucine, and isoleucine metabolism were the top enriched pathways in the inefficient group's plasma and muscle samples.
Article
Microbiology
Ruixiang Zhao, Jane E. Symonds, Seumas P. Walker, Konstanze Steiner, Chris G. Carter, John P. Bowman, Barbara F. Nowak
Summary: This study investigated the change of gut and water microbiota in freshwater recirculating aquaculture systems (RAS) for 7 months in Chinook salmon (Oncorhynchus tshawytscha) and evaluated the influence of fish health and growth performance on gut microbial communities. The results showed that gut microbial diversity increased significantly with fish growth, and the dominant gut microbiota shifted from Firmicutes to Proteobacteria, while Proteobacteria constantly dominated the water microbiota. Photobacterium sp. was identified as the core gut microbiota for freshwater farmed Chinook salmon. The study also found a possible link between dysbiosis and gut microbiota in Chinook salmon.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Fisheries
Leteisha A. Prescott, Jane E. Symonds, Seumas P. Walker, Matthew R. Miller, Jayson M. Semmens, Chris G. Carter
Summary: Exercise training is important in salmon hatcheries for enhancing production-related traits. Moderate flow regimes can improve swimming and metabolic performance in Chinook salmon, including those with spinal curvature. Exercise regimes also lead to morphological changes in muscle fibers, gill, and skin. This study highlights the benefits of exercise training in hatchery settings and provides insights into nutrient utilization in salmon farming.
Article
Fisheries
Marco Foddai, Chris G. Carter, Kelli Anderson, Nicole Ruff, Shuangyao Wang, Andrew T. Wood, Jayson M. Semmens
Summary: The development of pathophysiological cardiac alterations in farmed salmonids is a recurring and widespread welfare issue. The etiology is still unclear, but factors such as rearing temperature, selective breeding programs, and feeding strategies could induce cardiac remodelling. This maladaptive remodelling could impair cardiac function, leading to premature mortality and production losses.
Article
Fisheries
Alexandra S. Johne, Chris G. Carter, Simon Wotherspoon, Scott Hadley, Jane E. Symonds, Seumas P. Walker, Julia L. Blanchard
Summary: Fed aquaculture is a rapidly growing industry that plays a significant role in the global food production. This study focuses on individual variability in growth performance of king salmon fed different rations and suggests that using an integral projection model (IPM) framework could enhance the understanding of size-dependent processes in aquaculture.
JOURNAL OF FISH BIOLOGY
(2023)
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
Fisheries
Katarzyna Kropielnicka-Kruk, Quinn P. Fitzgibbon, Mohamed B. Codabaccus, Andrew J. Trotter, Chris G. Carter, Gregory G. Smith
Summary: This study examined the relationship between feeding efficiency and feed waste in juvenile spiny lobsters, and found that feed waste increased with increasing pellet size, but there was no difference in total feed waste across different pellet sizes. The study also found that feed attractiveness decreased with increasing pellet size, suggesting a counteractive interaction between pellet size and feed attractiveness.
Article
Biochemistry & Molecular Biology
Sadegh Balotf, Richard Wilson, Robert S. Tegg, David S. Nichols, Calum R. Wilson
Summary: This review provides an overview of the application of shotgun proteomics based on mass spectrometry (MS) in studying plant-pathogen interactions. Proteomics can reveal the mechanisms involved in plant-pathogen interactions by quantitatively measuring the dynamic changes of proteins, biological pathways, and post-translational modifications. The review summarizes the essential steps for shotgun proteomic studies of plants, pathogens, and plant-pathogen interactions, including methods for protein digestion, identification, separation, and quantification. Additionally, it discusses how protein post-translational modifications may participate in the interaction between a pathogen and its host plant.
