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Coates A, Robinson NA, Dempster T, Johnsen I, Phillips BL. Evolutionary predictions for a parasite metapopulation: Modelling salmon louse resistance to pest controls in aquaculture. Evol Appl 2023; 16:1982-1998. [PMID: 38143899 PMCID: PMC10739098 DOI: 10.1111/eva.13618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 10/20/2023] [Accepted: 11/02/2023] [Indexed: 12/26/2023] Open
Abstract
Pests often evolve resistance to pest controls used in agriculture and aquaculture. The rate of pest adaptation is influenced by the type of control, the selective pressure it imposes, and the gene flow between farms. By understanding how these factors influence evolution at the metapopulation level, pest management strategies that prevent resistance from evolving can be developed. We developed a model for the metapopulation and evolutionary dynamics of the salmon louse (Lepeophtheirus salmonis), which is a major parasite affecting salmon aquaculture. Different management scenarios were simulated across a network of salmon farms covering half of Norway, and their effects on louse epidemiology and evolution were investigated. We compared louse controls that differed in how they were deployed through time (discrete vs. continuous), how they impacted the louse life cycle, and in their overall efficacy. We adjusted the strength of selection imposed by treatments, the dominance effect of the resistant allele, and the geographic location at which resistance originated. Continuously acting strategies (e.g., louse-resistant salmon) were generally more effective than discrete strategies at controlling lice, especially when they increased louse mortality during early developmental stages. However, effective strategies also risked imposing frequent and/or strong selection on lice, thus driving rapid adaptation. Resistant alleles were more likely to be lost through genetic drift when they were recessive, had a low-fitness advantage, or originated in low-farm-density areas. The north-flowing current along the Norwegian coastline dispersed resistant genes from south to north, and limited gene flow in the opposite direction. We demonstrate how evolutionary models can produce quantitative predictions over large spatial and temporal scales and for a range of pest control scenarios. Quantitative outputs can be translated into practical management decisions applied at a regional level to minimise the risk of resistance developing.
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Affiliation(s)
- Andrew Coates
- Sustainable Aquaculture Laboratory – Temperate and Tropical (SALTT), Queenscliff Marine Science CentreDeakin UniversityBurwoodVictoriaAustralia
| | - Nicholas A. Robinson
- Sustainable Aquaculture Laboratory – Temperate and Tropical (SALTT), Queenscliff Marine Science CentreDeakin UniversityBurwoodVictoriaAustralia
- Breeding and Genetics, NofimaÅsNorway
| | - Tim Dempster
- Sustainable Aquaculture Laboratory – Temperate and Tropical (SALTT), Queenscliff Marine Science CentreDeakin UniversityBurwoodVictoriaAustralia
| | | | - Ben L. Phillips
- School of Molecular and Life SciencesCurtin UniversityBentleyWestern AustraliaAustralia
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2
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Gislefoss E, Abdelrahim Gamil AA, Øvergård AC, Evensen Ø. Identification and characterization of two salmon louse heme peroxidases and their potential as vaccine antigens. iScience 2023; 26:107991. [PMID: 37854698 PMCID: PMC10579435 DOI: 10.1016/j.isci.2023.107991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 07/09/2023] [Accepted: 09/16/2023] [Indexed: 10/20/2023] Open
Abstract
Salmon louse, Lepeophtheirus salmonis, represents major challenge for salmon farming. Current treatments impose welfare issues and are costly, whereas prophylactic measures are unavailable. Two salmon louse heme peroxidases (LsPxtl-1 and LsPxtl-2) were tested for their importance for parasite development and as potential vaccine candidates. LsPxtl-1 possesses two heme peroxidase domains and is expressed in ovaries and gut, whereas LsPxtl-2 encodes one domain and contains N-terminal signal peptide and an Eph receptor ligand-binding domain. LsPxtl-1, but not LsPxtl-2, knockdown in nauplius II stage caused poor swimming and death, indicating its importance for parasite development. Immunizations using single DNA plasmid injection encoding the peroxidases or heterologous prime (DNA) and boost (recombinant LsPxtl-2 protein) gave non-significant reduction in lice numbers. Single injection gave low specific antibody levels compared with the prime-boost. The findings suggest LsPxtl-1 is important for parasite development but formulations and vaccination modalities used did not significantly reduce lice infestation.
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Affiliation(s)
- Elisabeth Gislefoss
- Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Ås, Norway
- Sea Lice Research Center, University of Bergen, Bergen, Norway
| | - Amr Ahmed Abdelrahim Gamil
- Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Ås, Norway
- Sea Lice Research Center, University of Bergen, Bergen, Norway
| | - Aina-Cathrine Øvergård
- Department of Biological Sciences, University of Bergen, Bergen, Norway
- Sea Lice Research Center, University of Bergen, Bergen, Norway
| | - Øystein Evensen
- Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Ås, Norway
- Sea Lice Research Center, University of Bergen, Bergen, Norway
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3
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Lennox RJ, Barrett LT, Nilsen CI, Berhe S, Barlaup BT, Vollset KW. Moving cleaner fish from the wild into fish farms: A zero-sum game? Ecol Modell 2022. [DOI: 10.1016/j.ecolmodel.2022.110149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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4
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Hamoutene D, Oldford V, Donnet S. Drug and pesticide usage for sea lice treatment in salmon aquaculture sites in a Canadian province from 2016 to 2019. Sci Rep 2022; 12:4475. [PMID: 35296749 PMCID: PMC8927096 DOI: 10.1038/s41598-022-08538-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 03/08/2022] [Indexed: 12/04/2022] Open
Abstract
We used 4 years of publicly available data (2016–2019) on chemical usage at salmon sites with information on production, stocking, locations and environmental conditions to explore patterns of anti-sea lice treatments in a Canadian province. Results show that sequential chemical treatments are prevalent, emamectin benzoate (EMB) with azamethiphos being the most used combination with a decrease in ivermectin usage. Relatively high rates of usage of EMB per fish biomass may point to potential lice resistance patterns with information needed on mechanisms and local populations. Lower or no chemical usage at some sites indicate less sea lice infestations likely influenced by localized site conditions (coves), and a lessened need for medication due to the usage of cleaner fish and possibly other non-chemical methods (not documented in this report). The year/climate influenced chemical input only in sites with higher treatment levels likely due to effects on sea lice growth and reproduction. Observed differences between years are warmer surface temperature in the fall, a higher freshwater input in spring, and stronger wind conditions for 2017 and 2018 with more medication usage for these two years. The lack of significant effect of site distances calculated in zones of influence based on 24 h potential connectivity patterns highlight the need to refine the resolution of hydrodynamic processes.
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Affiliation(s)
- Dounia Hamoutene
- Saint Andrews Biological Station, Fisheries and Oceans Canada, 125 Marine Science Drive, St. Andrews, NB, E5B 0E4, Canada.
| | - Vanessa Oldford
- Northwest Atlantic Fisheries Center, Fisheries and Oceans Canada, P.O. Box 5667, St. John's, NL, A1C 5X1, Canada
| | - Sebastien Donnet
- Northwest Atlantic Fisheries Center, Fisheries and Oceans Canada, P.O. Box 5667, St. John's, NL, A1C 5X1, Canada
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Kim DY, Shinde SK, Kadam AA, Saratale RG, Saratale GD, Kumar M, Syed A, Bahkali AH, Ghodake GS. Advantage of Species Diversification to Facilitate Sustainable Development of Aquaculture Sector. Biology (Basel) 2022; 11:368. [PMID: 35336742 DOI: 10.3390/biology11030368] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/13/2022] [Accepted: 02/24/2022] [Indexed: 12/11/2022]
Abstract
Simple Summary The aquaculture sector must be well-founded to undergo robust growth and sustainable development in the years ahead. Species diversity must reflect species compatibility and complementarity to manage the complexity in polyculture systems. There is a need for the implementation of innovative strategies that facilitate sustainable aquaculture development, enhance profitability, improve resilience, and support conservation and environmental protection. An aquaculture development scenario must look beyond the economic profitability and strategize aquatic food production systems to attain food and nutrition security and benefits for all stakeholders. Abstract Intensified agrochemical-based monoculture systems worldwide are under adoption to meet the challenge of human population growth and the ever-growing global demand for food. However, this path has been opposed and criticized because it involves overexploitation of land, monoculture of few species, excessive input of agrochemicals, and adverse impacts on human health and the environment. The wide diversity among polyculture systems practiced across the globe has created confusion over the priority of a single strategy towards sustainable aquaculture development and safer products. Herein, we highlight the significance of polyculture and integrated aquaculture practices in conveying the successful transition of the aquaculture industry towards sustainable development. So far, the established thought is that the precise selection of aquatic species and a focus on compatible and complementary species combinations are supposed to facilitate rapid progress in food production with more profitability and sustainability. Therefore, the advantages of species diversification are discussed from an ecological perspective to enforce aquaculture expansion. This account asserts that a diverse range of aquaculture practices can promote synergies among farmed species, enhance system resilience, enable conservation, decrease ecological footprints, and provide social benefits such as diversified income and local food security.
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Chakraborty S, Woldemariam NT, Visnovska T, Rise ML, Boyce D, Santander J, Andreassen R. Characterization of miRNAs in Embryonic, Larval, and Adult Lumpfish Provides a Reference miRNAome for Cyclopterus lumpus. Biology 2022; 11:biology11010130. [PMID: 35053128 PMCID: PMC8773022 DOI: 10.3390/biology11010130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/05/2022] [Accepted: 01/07/2022] [Indexed: 12/28/2022]
Abstract
Simple Summary Lumpfish (Cyclopterus lumpus) is an emergent aquaculture species, and its miRNA repertoire is still unknown. miRNAs are critical post-transcriptional modulators of teleost gene expression. Therefore, a lumpfish reference miRNAome was characterized by small RNA sequencing and miRDeep analysis of samples from different organs and developmental stages. The resulting miRNAome, an essential reference for future expression analyses, consists of 443 unique mature miRNAs from 391 conserved and eight novel miRNA genes. Enrichment of specific miRNAs in particular organs and developmental stages indicates that some conserved lumpfish miRNAs regulate organ and developmental stage-specific functions reported in other teleosts. Abstract MicroRNAs (miRNAs) are endogenous small RNA molecules involved in the post-transcriptional regulation of protein expression by binding to the mRNA of target genes. They are key regulators in teleost development, maintenance of tissue-specific functions, and immune responses. Lumpfish (Cyclopterus lumpus) is becoming an emergent aquaculture species as it has been utilized as a cleaner fish to biocontrol sea lice (e.g., Lepeophtheirus salmonis) infestation in the Atlantic Salmon (Salmo salar) aquaculture. The lumpfish miRNAs repertoire is unknown. This study identified and characterized miRNA encoding genes in lumpfish from three developmental stages (adult, embryos, and larvae). A total of 16 samples from six different adult lumpfish organs (spleen, liver, head kidney, brain, muscle, and gill), embryos, and larvae were individually small RNA sequenced. Altogether, 391 conserved miRNA precursor sequences (discovered in the majority of teleost fish species reported in miRbase), eight novel miRNA precursor sequences (so far only discovered in lumpfish), and 443 unique mature miRNAs were identified. Transcriptomics analysis suggested organ-specific and age-specific expression of miRNAs (e.g., miR-122-1-5p specific of the liver). Most of the miRNAs found in lumpfish are conserved in teleost and higher vertebrates, suggesting an essential and common role across teleost and higher vertebrates. This study is the first miRNA characterization of lumpfish that provides the reference miRNAome for future functional studies.
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Affiliation(s)
- Setu Chakraborty
- Marine Microbial Pathogenesis and Vaccinology Laboratory, Department of Ocean Sciences, Memorial University of Newfoundland, 0 Marine Lab Rd, St. John’s, NL A1C 5S7, Canada;
| | - Nardos T. Woldemariam
- Department of Life Sciences and Health, Faculty of Health Sciences, OsloMet–Oslo Metropolitan University, Pilestredet 50, N-0130 Oslo, Norway;
| | - Tina Visnovska
- Bioinformatics Core Facility, Oslo University Hospital, 0372 Oslo, Norway;
| | - Matthew L. Rise
- Department of Ocean Sciences, Faculty of Sciences, Memorial University of Newfoundland, 0 Marine Lab Rd, St. John’s, NL A1C 5S7, Canada;
| | - Danny Boyce
- Dr. Joe Brown Aquatic Research Building (JBARB), Department of Ocean Sciences, Memorial University of Newfoundland, 0 Marine Lab Rd, St. John’s, NL A1C 5S7, Canada;
| | - Javier Santander
- Marine Microbial Pathogenesis and Vaccinology Laboratory, Department of Ocean Sciences, Memorial University of Newfoundland, 0 Marine Lab Rd, St. John’s, NL A1C 5S7, Canada;
- Correspondence: (J.S.); (R.A.)
| | - Rune Andreassen
- Department of Life Sciences and Health, Faculty of Health Sciences, OsloMet–Oslo Metropolitan University, Pilestredet 50, N-0130 Oslo, Norway;
- Correspondence: (J.S.); (R.A.)
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Rey S, Treasurer J, Pattillo C, McAdam BJ. Using model selection to choose a size-based condition index that is consistent with operational welfare indicators. J Fish Biol 2021; 99:782-795. [PMID: 33890676 DOI: 10.1111/jfb.14761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 03/30/2021] [Accepted: 04/19/2021] [Indexed: 06/12/2023]
Abstract
Quantitative and qualitative measures of fish health and welfare are essential for management of both wild capture and aquaculture species. These measures include morphometric body condition indices, energetic condition and aquaculture operational welfare indicators (OWIs). Measures vary in ease of measurement (and may require destructive sampling), and it is critical to know how well they correlate with fish health and welfare so appropriate management decisions can be based on them. Lumpfish (Cyclopterus lumpus) is a new farming species that needs nondestructive OWIs to be developed and validated. In this study, we developed a C. lumpus fin damage score. Four different body condition indexes based on individual weight relative to either length-weight relationships or relative to other fish in its local environment were tested (using model selection) as predictors of individual fin damage. Results showed severity of fin damage was predicted by small size relative to the other individuals in the tank or cage. Body condition based on length-weight relationship was not found to predict fin damage, indicating that using established indices from fisheries or from other species would not predict welfare risks from fin damage. Implications are that especially in hatchery conditions grading will improve the condition index, and is expected to mitigate fin damage, but that low weight at length was not of use in predicting fin damage. Model selection to choose between a suite of possible indices proved powerful and should be considered in other applications where an easily measured index is needed to correlate with other health measures.
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Affiliation(s)
- Sonia Rey
- Institute of Aquaculture, University of Stirling, Stirling, UK
| | | | | | - Bruce J McAdam
- Institute of Aquaculture, University of Stirling, Stirling, UK
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Eilertsen HC, Elvevoll E, Giæver IH, Svenning JB, Dalheim L, Svalheim RA, Vang B, Siikavuopio S, Dragøy R, Ingebrigtsen RA, Hansen E, Hustad A, Eilertsen KE. Inclusion of photoautotrophic cultivated diatom biomass in salmon feed can deter lice. PLoS One 2021; 16:e0255370. [PMID: 34324572 DOI: 10.1371/journal.pone.0255370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 07/14/2021] [Indexed: 12/02/2022] Open
Abstract
The aim of this study was to evaluate the potential of diatom (microalgae) biomass as a lice-reducing ingredient in salmon feed. The original hypothesis was based on the fact that polyunsaturated aldehydes (PUAs), e.g. 2-trans, 4-trans decadenial (A3) produced by diatoms can function as grazing deterrents and harm copepod development. Salmon lice (Lepeophtheirus salmonis) is a copepod, and we intended to test if inclusion of diatom biomass in the feed could reduce the infestation of lice on salmon. We performed experiments where salmon kept in tanks were offered four different diets, i.e. basic feed with diatoms, fish oil, Calanus sp. oil or rapeseed oil added. After a feeding period of 67 days a statistically representative group of fishes, tagged with diet group origin, were pooled in a 4000L tank and exposed to salmon lice copepodites whereafter lice infestation was enumerated. Salmon from all four diet groups had good growth with SGR values from 1.29 to 1.44% day-1 (increase from ca. 130 g to 350 g). At the termination of the experiment the number of lice on salmon offered diatom feed were statistically significantly lower than on salmon fed the other diets. Mean lice infestation values increased from diatom feed through Calanus and fish oil to standard feed with terrestrial plant ingredients. Analysis of the chemical composition of the different diets (fatty acids, amino acids) failed to explain the differences in lice infestation. The only notable result was that diatom and Calanus feed contained more FFA (free fatty acids) than feed with fish oil and the control feed. None of the potential deleterious targeted polyunsaturated aldehydes could be detected in skin samples of the salmon. What was exclusive for salmon that experienced reduced lice was diatom inclusion in the feed. This therefore still indicates the presence of some lice deterring ingredient, either in the feed, or an ingredient can have triggered production of an deterrent in the fish. An obvious follow up of this will be to perform experiments with different degrees of diatom inclusion in the feeds, i.e. dose response experiments combined with targeted PUA analyses, as well as to perform large scale experiments under natural conditions in aquaculture pens.
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9
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Hamre LA, Oldham T, Oppedal F, Nilsen F, Glover KA. The potential for cleaner fish-driven evolution in the salmon louse Lepeophtheirus salmonis: Genetic or environmental control of pigmentation? Ecol Evol 2021; 11:7865-7878. [PMID: 34188857 PMCID: PMC8216962 DOI: 10.1002/ece3.7618] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 04/08/2021] [Indexed: 11/25/2022] Open
Abstract
The parasitic salmon louse represents one of the biggest challenges to environmentally sustainable salmonid aquaculture across the globe. This species also displays a high evolutionary potential, as demonstrated by its rapid development of resistance to delousing chemicals. In response, farms now use a range of non-chemical delousing methods, including cleaner fish that eat lice from salmon. Anecdotal reports suggest that in regions where cleaner fish are extensively used on farms, lice have begun to appear less pigmented and therefore putatively less visible to cleaner fish. However, it remains an open question whether these observations reflect a plastic (environmental) or adaptive (genetic) response. To investigate this, we developed a pigment scoring system and conducted complimentary experiments which collectively demonstrate that, a) louse pigmentation is strongly influenced by environmental conditions, most likely light, and b) the presence of modest but significant differences in pigmentation between two strains of lice reared under identical conditions. Based on these data, we conclude that pigmentation in the salmon louse is strongly influenced by environmental conditions, yet there are also indications of underlying genetic control. Therefore, lice could display both plastic and adaptive responses to extensive cleaner fish usage where visual appearance is likely to influence survival of lice.
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Affiliation(s)
- Lars Are Hamre
- Department of Biological SciencesSea Lice Research CentreUniversity of BergenBergenNorway
| | | | | | - Frank Nilsen
- Department of Biological SciencesSea Lice Research CentreUniversity of BergenBergenNorway
- Institute of Marine ResearchBergenNorway
| | - Kevin Alan Glover
- Department of Biological SciencesSea Lice Research CentreUniversity of BergenBergenNorway
- Institute of Marine ResearchBergenNorway
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Whittaker BA, Maeda S, Boulding EG. Strike a pose: Does communication by a facultative cleaner fish, the cunner wrasse (Tautogolabrus adspersus), facilitate interaction with Atlantic salmon (Salmo salar)? Appl Anim Behav Sci 2021. [DOI: 10.1016/j.applanim.2021.105275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Gendron RL, Paradis H, Ahmad R, Kao K, Boyce D, Good WV, Kumar S, Vasquez I, Cao T, Hossain A, Chakraborty S, Valderrama K, Santander J. CD10 + Cells and IgM in Pathogen Response in Lumpfish ( Cyclopterus lumpus) Eye Tissues. Front Immunol 2020; 11:576897. [PMID: 33329544 PMCID: PMC7714965 DOI: 10.3389/fimmu.2020.576897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 10/22/2020] [Indexed: 11/30/2022] Open
Abstract
Lumpfish (Cyclopterus lumpus), a North Atlantic “cleaner“ fish, is utilized to biocontrol salmon louse (Lepeophtheirus salmonis) in Atlantic salmon (Salmo salar) farms. Lumpfish require excellent vision to scan for and eat louse on salmon skin. The lumpfish eye immune response to infectious diseases has not been explored. We examined the ocular response to a natural parasite infection in wild lumpfish and to an experimental bacterial infection in cultured lumpfish. Cysts associated with natural myxozoan infection in the ocular scleral cartilage of wild adult lumpfish harbored cells expressing cluster of differentiation 10 (CD10) and immunoglobulin M (IgM). Experimental Vibrio anguillarum infection, which led to exophthalmos and disorganization of the retinal tissues was associated with disruption of normal CD10 expression, CD10+ cellular infiltration and IgM expression. We further describe the lumpfish CD10 orthologue and characterize the lumpfish scleral skeleton in the context of myxozoan scleral cysts. We propose that lumpfish develop an intraocular response to pathogens, exemplified herein by myxozoan and V. anguillarum infection involving novel CD10+ cells and IgM+ cells to contain and mitigate damage to eye structures. This work is the first demonstration of CD10 and IgM expressing cells in a novel ocular immune system component in response to disease in a teleost.
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Affiliation(s)
- Robert L Gendron
- Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St. John's, NL, Canada
| | - Hélène Paradis
- Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St. John's, NL, Canada
| | - Raahyma Ahmad
- Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St. John's, NL, Canada
| | - Kenneth Kao
- Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St. John's, NL, Canada
| | - Danny Boyce
- Marine Microbial Pathogenesis and Vaccinology Lab, Department of Ocean Sciences, Memorial University, St. John's, NL, Canada
| | - William V Good
- Smith Kettlewell Eye Research Institute, San Francisco, CA, United States
| | - Surendra Kumar
- Marine Microbial Pathogenesis and Vaccinology Lab, Department of Ocean Sciences, Memorial University, St. John's, NL, Canada
| | - Ignacio Vasquez
- Marine Microbial Pathogenesis and Vaccinology Lab, Department of Ocean Sciences, Memorial University, St. John's, NL, Canada
| | - Trung Cao
- Marine Microbial Pathogenesis and Vaccinology Lab, Department of Ocean Sciences, Memorial University, St. John's, NL, Canada
| | - Ahmed Hossain
- Marine Microbial Pathogenesis and Vaccinology Lab, Department of Ocean Sciences, Memorial University, St. John's, NL, Canada
| | - Setu Chakraborty
- Marine Microbial Pathogenesis and Vaccinology Lab, Department of Ocean Sciences, Memorial University, St. John's, NL, Canada
| | - Katherinne Valderrama
- Marine Microbial Pathogenesis and Vaccinology Lab, Department of Ocean Sciences, Memorial University, St. John's, NL, Canada
| | - Javier Santander
- Marine Microbial Pathogenesis and Vaccinology Lab, Department of Ocean Sciences, Memorial University, St. John's, NL, Canada
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12
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Napier JA, Haslam RP, Olsen RE, Tocher DR, Betancor MB. Agriculture can help aquaculture become greener. Nat Food 2020; 1:680-683. [PMID: 37128041 DOI: 10.1038/s43016-020-00182-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 10/09/2020] [Indexed: 05/03/2023]
Abstract
Aquaculture, the farming of fish and seafood, is recognized as a highly efficient system for producing protein for human consumption. In contrast, many terrestrial animal protein production systems are inefficient, impacting land use and exacerbating climate change. Humankind needs to adopt a more plant-centric diet, the only exception being fish consumed as both a source of protein and essential dietary nutrients such as omega-3 fatty acids. Here we consider the implications of such a transition, and the challenges that aquaculture must overcome to increase productivity within planetary boundaries. We consider how agriculture, specifically crops, can provide solutions for aquaculture, especially the sectors that are dependent on marine ingredients. For example, agriculture can provide experience with managing monocultures and new technologies such as genetically modified crops tailored specifically for use in aquaculture. We propose that a closer connection between agriculture and aquaculture will create a resilient food system capable of meeting increasing dietary and nutritional demands without exhausting planetary resources.
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Affiliation(s)
| | | | - Rolf-Erik Olsen
- Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Douglas R Tocher
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, UK
| | - Mónica B Betancor
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, UK
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