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Belding LD, Thorstensen MJ, Quijada-Rodriguez AR, Bugg WS, Yoon GR, Loeppky AR, Allen GJP, Schoen AN, Earhart ML, Brandt C, Ali JL, Weihrauch D, Jeffries KM, Anderson WG. Integrated organismal responses induced by projected levels of CO 2 and temperature exposures in the early life stages of lake sturgeon. Mol Ecol 2024; 33:e17432. [PMID: 38887831 DOI: 10.1111/mec.17432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 05/26/2024] [Accepted: 05/31/2024] [Indexed: 06/20/2024]
Abstract
Atmospheric CO2 and temperature are rising concurrently, and may have profound impacts on the transcriptional, physiological and behavioural responses of aquatic organisms. Further, spring snowmelt may cause transient increases of pCO2 in many freshwater systems. We examined the behavioural, physiological and transcriptomic responses of an ancient fish, the lake sturgeon (Acipenser fulvescens) to projected levels of warming and pCO2 during its most vulnerable period of life, the first year. Specifically, larval fish were raised in either low (16°C) or high (22°C) temperature, and/or low (1000 μatm) or high (2500 μatm) pCO2 in a crossed experimental design over approximately 8 months. Following overwintering, lake sturgeon were exposed to a transient increase in pCO2 of 10,000 μatm, simulating a spring melt based on data in freshwater systems. Transcriptional analyses revealed potential connections to otolith formation and reduced growth in fish exposed to high pCO2 and temperature in combination. Network analyses of differential gene expression revealed different biological processes among the different treatments on the edges of transcriptional networks. Na+/K+-ATPase activity increased in fish not exposed to elevated pCO2 during development, and mRNA abundance of the β subunit was most strongly predictive of enzyme activity. Behavioural assays revealed a decrease in total activity following an acute CO2 exposure. These results demonstrate compensatory and compounding mechanisms of pCO2 and warming dependent on developmental conditions in lake sturgeon. Conserved elements of the cellular stress response across all organisms provide key information for how other freshwater organisms may respond to future climate change.
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Affiliation(s)
- Luke D Belding
- Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Matt J Thorstensen
- Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | - William S Bugg
- Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- Pacific Salmon Foundation, Vancouver, British Columbia, Canada
| | - Gwangseok R Yoon
- Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - Alison R Loeppky
- Ecology and Environmental Impact, WSP Canada Inc., Winnipeg, Manitoba, Canada
| | - Garrett J P Allen
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Alexandra N Schoen
- Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Biology, University of Winnipeg, Winnipeg, Manitoba, Canada
| | - Madison L Earhart
- Department of Zoology, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Jennifer L Ali
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Dirk Weihrauch
- Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Kenneth M Jeffries
- Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - W Gary Anderson
- Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
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Gan J, Zhang L, Wang Q, Xin Q, Xiong Y, Hu E, Lei Z, Wang H, Wang H. Phosphorylation improved the competitive U/V adsorption on chitosan-based adsorbent containing amidoxime for rapid uranium extraction from seawater. Int J Biol Macromol 2023; 238:124074. [PMID: 36934816 DOI: 10.1016/j.ijbiomac.2023.124074] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/09/2023] [Accepted: 03/14/2023] [Indexed: 03/21/2023]
Abstract
A novel chitosan-based porous composite adsorbent with multifunctional groups, such as phosphoric acid, amidoxime, and quaternary ammonium groups, was prepared to improve the adsorption rate and competitive uranium‑vanadium adsorption of amidoxime group adsorbents. The maximum uranium adsorption capacity of PACNC was 962.226 mg g-1 at 308 K and pH = 7. The maximum adsorption rate constant of PACNC for uranium was 2.83E-2 g mg-1 min-1, which is 2.38 times that of ACNC (1.19E-2 g mg-1 min-1). Moreover, the adsorption equilibrium time was shortened from 300 (ACNC) to 50 (PACNC) min. In simulated and real seawater, the Kd and adsorption capacity of PACNC for uranium were approximately 8 and 6.62 times those for vanadium, respectively. These results suggest that phosphorylation significantly improved the competitive adsorption of uranium‑vanadium and uranium adsorption rate. PACNC also exhibited good recycling performance and maintained stable adsorption capacity after five cycles. DFT calculations were used to analyze and calculate the possible co-complex structure of PACNC and uranium. The binding structure of phosphate and amidoxime is the most stable, and its synergistic effect effectively improves the competitive adsorption of uranium-vanadium of amidoxime. All the results demonstrated that PACNC has substantial application potential for uranium extraction from seawater.
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Affiliation(s)
- Jiali Gan
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Lieyu Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Qingliang Wang
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Qi Xin
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Ying Xiong
- Beijing Water Science and Technology Institute, Beijing 100048, China
| | - Eming Hu
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Zhiwu Lei
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Hongqing Wang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Hongqiang Wang
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China.
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Tigert LR, Porteus CS. Invited review - the effects of anthropogenic abiotic stressors on the sensory systems of fishes. Comp Biochem Physiol A Mol Integr Physiol 2023; 277:111366. [PMID: 36586568 DOI: 10.1016/j.cbpa.2022.111366] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/04/2022] [Accepted: 12/27/2022] [Indexed: 12/30/2022]
Abstract
Climate change is a growing global issue with many countries and institutions declaring a climate state of emergency. Excess CO2 from anthropogenic sources and changes in land use practices are contributing to many detrimental changes, including increased global temperatures, ocean acidification and hypoxic zones along coastal habitats. All senses are important for aquatic animals, as it is how they can perceive and respond to their environment. Some of these environmental challenges have been shown to impair their sensory systems, including the olfactory, visual, and auditory systems. While most of the research is focused on how ocean acidification affects olfaction, there is also evidence that it negatively affects vision and hearing. The effects that temperature and hypoxia have on the senses have also been investigated, but to a much lesser extent in comparison to ocean acidification. This review assembles the known information on how these anthropogenic challenges affect the sensory systems of fishes, but also highlights what gaps in knowledge remain with suggestions for immediate action. Olfaction, vision, otolith, pH, freshwater, seawater, marine, central nervous system, electrophysiology, mechanism.
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Affiliation(s)
- Liam R Tigert
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, ON M1C 1A4, Canada.
| | - Cosima S Porteus
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, ON M1C 1A4, Canada. https://twitter.com/cosimaporteus
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