1
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Leong RC, Bugnot AB, Ross PM, Erickson KR, Gibbs MC, Marzinelli EM, O'Connor WA, Parker LM, Poore AGB, Scanes E, Gribben PE. Recruitment of a threatened foundation oyster species varies with large and small spatial scales. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2024; 34:e2968. [PMID: 38562000 DOI: 10.1002/eap.2968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 09/20/2023] [Accepted: 10/28/2023] [Indexed: 04/04/2024]
Abstract
Understanding how habitat attributes (e.g., patch area and sizes, connectivity) control recruitment and how this is modified by processes operating at larger spatial scales is fundamental to understanding population sustainability and developing successful long-term restoration strategies for marine foundation species-including for globally threatened reef-forming oysters. In two experiments, we assessed the recruitment and energy reserves of oyster recruits onto remnant reefs of the oyster Saccostrea glomerata in estuaries spanning 550 km of coastline in southeastern Australia. In the first experiment, we determined whether recruitment of oysters to settlement plates in three estuaries was correlated with reef attributes within patches (distances to patch edges and surface elevation), whole-patch attributes (shape and size of patches), and landscape attributes (connectivity). We also determined whether environmental factors (e.g., sedimentation and water temperature) explained the differences among recruitment plates. We also tested whether differences in energy reserves of recruits could explain the differences between two of the estuaries (one high- and one low-sedimentation estuary). In the second experiment, across six estuaries (three with nominally high and three with nominally low sedimentation rates), we tested the hypothesis that, at the estuary scale, recruitment and survival were negatively correlated to sedimentation. Overall, total oyster recruitment varied mostly at the scale of estuaries rather than with reef attributes and was negatively correlated with sedimentation. Percentage recruit survival was, however, similar among estuaries, although energy reserves and condition of recruits were lower at a high- compared to a low-sediment estuary. Within each estuary, total oyster recruitment increased with patch area and decreased with increasing tidal height. Our results showed that differences among estuaries have the largest influence on oyster recruitment and recruit health and this may be explained by environmental processes operating at the same scale. While survival was high across all estuaries, growth and reproduction of oysters on remnant reefs may be affected by sublethal effects on the health of recruits in high-sediment estuaries. Thus, restoration programs should consider lethal and sublethal effects of whole-estuary environmental processes when selecting sites and include environmental mitigation actions to maximize recruitment success.
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Affiliation(s)
- Rick C Leong
- Centre for Marine Science and Innovation, University of New South Wales Sydney, Kensington, New South Wales, Australia
| | - Ana B Bugnot
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, New South Wales, Australia
- Sydney Institute of Marine Science, Mosman, New South Wales, Australia
- CSIRO Environment, Saint Lucia, Queensland, Australia
| | - Pauline M Ross
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, New South Wales, Australia
- Sydney Institute of Marine Science, Mosman, New South Wales, Australia
| | - Katherine R Erickson
- Centre for Marine Science and Innovation, University of New South Wales Sydney, Kensington, New South Wales, Australia
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, New South Wales, Australia
| | - Mitchell C Gibbs
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, New South Wales, Australia
| | - Ezequiel M Marzinelli
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, New South Wales, Australia
- Sydney Institute of Marine Science, Mosman, New South Wales, Australia
- Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore, Singapore
| | - Wayne A O'Connor
- New South Wales Department of Primary Industries, Port Stephens Fisheries Institute, Anna Bay, New South Wales, Australia
| | - Laura M Parker
- Centre for Marine Science and Innovation, University of New South Wales Sydney, Kensington, New South Wales, Australia
| | - Alistair G B Poore
- Centre for Marine Science and Innovation, University of New South Wales Sydney, Kensington, New South Wales, Australia
| | - Elliot Scanes
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, New South Wales, Australia
- Climate Change Cluster, University of Technology Sydney, Ultimo, New South Wales, Australia
| | - Paul E Gribben
- Centre for Marine Science and Innovation, University of New South Wales Sydney, Kensington, New South Wales, Australia
- Sydney Institute of Marine Science, Mosman, New South Wales, Australia
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2
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Luo X, Zhang X, Xu Y, Masanja F, Yang K, Liu Y, Zhao L. Behavioral responses of intertidal clams to compound extreme weather and climate events. MARINE POLLUTION BULLETIN 2024; 200:116112. [PMID: 38320442 DOI: 10.1016/j.marpolbul.2024.116112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/08/2024]
Abstract
Rapidly increasing concentration of carbon dioxide (CO2) in the atmosphere not only results in global warming, but also drives increasing seawater acidification. Infaunal bivalves play critical roles in benthic-pelagic coupling, but little is known about their behavioral responses to compound climate events. Here, we tested how heatwaves and acidification affected the behavior of Manila clams (Ruditapes philippinarum). Under acidified conditions, the clams remained capable of burrowing into sediments. Yet, when heatwaves attacked, significant decreases in burrowing ability occurred. Following two consecutive events of heatwaves, the clams exhibited rapid behavioral acclimation. The present study showed that the behavior of R. philippinarum is more sensitive to heatwaves than acidification. Given that the behavior can act as an early and sensitive indicator of the fitness of intertidal bivalves, whether, and to what extent, behavioral acclimation can persist under scenarios of intensifying heatwaves in the context of ocean acidification deserve further investigations.
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Affiliation(s)
- Xin Luo
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Xingzhi Zhang
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fisheries Sciences, Nanning, China
| | - Yang Xu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | | | - Ke Yang
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Yong Liu
- Pearl Research Institute, Guangdong Ocean University, Zhanjiang, China
| | - Liqiang Zhao
- Fisheries College, Guangdong Ocean University, Zhanjiang, China; Guangdong Science and Technology Innovation Center of Marine Invertebrate, Guangdong Ocean University, Zhanjiang, China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Guangdong Ocean University, Zhanjiang, China.
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3
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Acquafredda M, Guo X, Munroe D. Transcriptomic Response of the Atlantic Surfclam (Spisula solidissima) to Acute Heat Stress. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2024; 26:149-168. [PMID: 38240954 PMCID: PMC10869415 DOI: 10.1007/s10126-024-10285-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/04/2024] [Indexed: 02/16/2024]
Abstract
There is clear evidence that the oceans are warming due to anthropogenic climate change, and the northeastern coast of USA contains some of the fastest warming areas. This warming is projected to continue with serious biological and social ramifications for fisheries and aquaculture. One species particularly vulnerable to warming is the Atlantic surfclam (Spisula solidissima). The surfclam is a critically important species, linking marine food webs and supporting a productive, lucrative, and sustainable fishery. The surfclam is also emerging as an attractive candidate for aquaculture diversification, but the warming of shallow coastal farms threatens the expansion of surfclam aquaculture. Little is known about the adaptive potential of surfclams to cope with ocean warming. In this study, the surfclam transcriptome under heat stress was examined. Two groups of surfclams were subjected to heat stress to assess how artificial selection may alter gene expression. One group of clams had been selected for greater heat tolerance (HS) and the other was composed of random control clams (RC). After a 6-h exposure to 16 or 29 °C, gill transcriptome expression profiles of the four temperature/group combinations were determined by RNA sequencing and compared. When surfclams experienced heat stress, they exhibited upregulation of heat shock proteins (HSPs), inhibitors of apoptosis (IAPs), and other stress-response related genes. RC clams differentially expressed 1.7 times more genes than HS clams, yet HS clams had a stronger response of key stress response genes, including HSPs, IAPs, and genes involved with mitigating oxidative stress. The findings imply that the HS clams have a more effective response to heat stress after undergoing the initial selection event due to genetic differences created by the selection, epigenetic memory of the first heat shock, or both. This work provides insights into how surfclams adapt to heat stress and should inform future breeding programs that attempt to breed surfclam for greater heat tolerance, and ultimately bring greater resiliency to shellfish farms.
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Affiliation(s)
- Michael Acquafredda
- Haskin Shellfish Research Laboratory, Department of Marine and Coastal Sciences, Rutgers University, 6959 Miller Avenue, Port Norris, NJ, 08349, USA.
| | - Ximing Guo
- Haskin Shellfish Research Laboratory, Department of Marine and Coastal Sciences, Rutgers University, 6959 Miller Avenue, Port Norris, NJ, 08349, USA
| | - Daphne Munroe
- Haskin Shellfish Research Laboratory, Department of Marine and Coastal Sciences, Rutgers University, 6959 Miller Avenue, Port Norris, NJ, 08349, USA
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Tian Y, Li H, Zhang D, Wang C, Hao R, Ru X, Hu Q, Huang Y, Zhu C. Effect of marine heatwaves on juvenile greater amberjack (Seriola dumerili). MARINE ENVIRONMENTAL RESEARCH 2024; 193:106302. [PMID: 38113590 DOI: 10.1016/j.marenvres.2023.106302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/04/2023] [Accepted: 12/10/2023] [Indexed: 12/21/2023]
Abstract
Marine heatwaves (MHWs) have increased in frequency, intensity, and duration in recent years causing significant impacts on marine organisms and fisheries. This study explores the physiological changes of juvenile greater amberjacks (Seriola dumerili) that cope with MHWs. Results showed that physiological parameters were significantly affected by the intensity, duration of MHWs or interaction of two factors (P < 0.05). Repeated MHWs in which water temperatures were increased (24 °C to 28 °C and 32 °C) resulted in changes in enzyme activity levels (catalase (CAT), superoxide dismutase (SOD), and glutathione (GSH)), as well as the level of malondialdehyde (MDA) for antioxidant defense, immune function (acid phosphatase (ACP), alkaline phosphatase (ALP), and lysozyme (LYZ)), and energy metabolism (including triglycerides (TG), glucose (GLU), aspartate aminotransferase (GOT), alanine aminotransferase (ALT), lactate dehydrogenase (LDH), and succinate dehydrogenase (SDH)). The activities of enzymes, including those associated with antioxidant defense, immune function, and energy metabolism, changed significantly in relation to short-term MHWs, indicating a thermal stress response. When S. dumerili were exposed to repeated-MHWs, thermal stress responses increased at 28 °C (T28) and decreased at 32 °C (T32). These results exhibited the inability of S. dumerili to acclimate to severe thermal stress from MHWs. This study examined S. dumerili responses to MHWs and assessed the physiological adaptation of juvenile greater amberjacks to MHWs.
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Affiliation(s)
- Yali Tian
- Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China; Development and Research Center for Biological Marine Resources, Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, 524006, China
| | - Hang Li
- Development and Research Center for Biological Marine Resources, Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, 524006, China
| | - Dongying Zhang
- Development and Research Center for Biological Marine Resources, Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, 524006, China
| | - Chen Wang
- Development and Research Center for Biological Marine Resources, Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, 524006, China
| | - Ruijuan Hao
- Development and Research Center for Biological Marine Resources, Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, 524006, China.
| | - Xiaoying Ru
- Development and Research Center for Biological Marine Resources, Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, 524006, China
| | - Qin Hu
- Development and Research Center for Biological Marine Resources, Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, 524006, China
| | - Yang Huang
- Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China; Development and Research Center for Biological Marine Resources, Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, 524006, China; Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Ocean University, Zhanjiang, 524088, China; Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Zhanjiang, 524088, China
| | - Chunhua Zhu
- Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China; Development and Research Center for Biological Marine Resources, Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, 524006, China; Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Ocean University, Zhanjiang, 524088, China; Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Zhanjiang, 524088, China.
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5
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De Marco A, Baldassarro VA, Calzà L, Giardino L, Dondi F, Ferrari MG, Bignami G, Parma L, Bonaldo A. Prolonged heat waves reduce the condition index and alter the molecular parameters in the pacific oyster Crassostrea gigas. FISH & SHELLFISH IMMUNOLOGY 2023; 133:108518. [PMID: 36610607 DOI: 10.1016/j.fsi.2023.108518] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 12/28/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
The entire shellfish farming sector is negatively affected by heat waves. Predictive models show that while heat waves are not predicted to exceed 28 °C in the northern Adriatic Sea over the coming decades, their duration will increase to periods of up to 30 days. Knowledge regarding the effects of heat waves on bivalves at physiological and molecular level is still limited. This study attempted to simulate what will happen in the future in Pacific oysters exposed to prolonged heat waves, assessing morphometric and physiological indices, and investigating the expression level of a number of genes, including the chaperone heat shock proteins HSP70, HSP72 and HSP90, and the factor P53. A state of stress in the heat wave-exposed animals was found, with loss of body weight and energy resources: despite showing a higher clearance rate, these animals were unable to absorb the nutrients required to maintain homeostasis, as well as demonstrating an alteration in hemolymphatic AST activity, total calcium and magnesium concentration. mRNA levels of all examined genes increased in response to thermal stress, with long-term overexpression, activating cell stress defense mechanisms and modulating the cycle cell. The results of this study indicate that heat waves affect oyster welfare, with consequences for the productivity of the sector due to the lack of salable products.
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Affiliation(s)
- Antonina De Marco
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy.
| | - Vito Antonio Baldassarro
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Laura Calzà
- Health Science and Technologies Interdepartmental Center for Industrial Research (HST-ICIR), University of Bologna, Via Tolara di Sopra 41/E, 40064, Ozzano Emilia, Bologna, Italy
| | - Luciana Giardino
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Francesco Dondi
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Maria Giulia Ferrari
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Giorgia Bignami
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Luca Parma
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Alessio Bonaldo
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
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6
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Liu X, Peng Y, Xu Y, He G, Liang J, Masanja F, Yang K, Xu X, Deng Y, Zhao L. Responses of digestive metabolism to marine heatwaves in pearl oysters. MARINE POLLUTION BULLETIN 2023; 186:114395. [PMID: 36455501 DOI: 10.1016/j.marpolbul.2022.114395] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/16/2022] [Accepted: 11/19/2022] [Indexed: 06/17/2023]
Abstract
Marine heatwaves (MHWs) have increased in intensity and frequency in global oceans, causing deleterious effects on many marine organisms and ecosystems they support. Bivalves are among the most vulnerable taxonomic groups to intensifying MHWs, yet little is known about the underlying mechanisms. Here, we investigated the impact of MHWs on the digestive metabolism of pearl oysters (Pinctada maxima). Two moderate and severe scenarios of MHWs were performed by increasing seawater temperature respectively from 24 °C to 28 °C and 32 °C for 3 days. When subjected to MHWs and with increasing intensity, pearl oysters significantly enhanced their digestive enzymatic activities, such as lipase and amylase. LC-MS-based metabolomics revealed negative responses in the lipid metabolism (e.g., steroid biosynthesis, glycerophospholipid metabolism, and sphingolipid metabolism), the amino acid metabolism (e.g., glutamate, histidine, arginine, and proline), and the B-vitamins metabolism. These findings indicate that the digestive metabolism of marine bivalves can likely succumb to intensifying MHWs events.
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Affiliation(s)
- Xiaolong Liu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Yalan Peng
- Zhuhai Central Station of Marine Environmental Monitoring, Ministry of Natural Resources, Zhuhai, China.
| | - Yang Xu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Guixiang He
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Jian Liang
- Fisheries College, Guangdong Ocean University, Zhanjiang, China; Department of Fisheries, Tianjin Agricultural University, Tianjin, China
| | | | - Ke Yang
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Xin Xu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Yuewen Deng
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Liqiang Zhao
- Fisheries College, Guangdong Ocean University, Zhanjiang, China.
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7
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He G, Peng Y, Liu X, Liu Y, Liang J, Xu X, Yang K, Masanja F, Xu Y, Deng Y, Zhao L. Post-responses of intertidal bivalves to recurrent heatwaves. MARINE POLLUTION BULLETIN 2022; 184:114223. [PMID: 36240632 DOI: 10.1016/j.marpolbul.2022.114223] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/02/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Heatwaves are becoming hotter, longer and more frequent, threatening the survival of intertidal bivalves and devastating their ecosystems. Yet, substantially overlooked are heatwave-induced post-responses, which are important to assess cascading consequences. Here, we investigated responses of intertidal bivalves, Ruditapes philippinarum, to recurrent heatwaves. Physiological and gene expression analyses demonstrated that the mantle tissue of R. philippinarum did not sensitively respond to heatwaves, but revealed post-responses under recovery scenarios. Of 20 genes related to essential physiology and fitness, 18 were down-regulated during the 1st recovery period, but following repeated exposure, 13 genes were up-regulated, in line with significantly increased activities of energy-metabolizing enzymes, and antioxidant and nonspecific enzymes. The down-regulation of genes involved in biomineralization, nevertheless, was observed under recovery scenarios, implying the trade-off between essential physiological and fitness-related functions. These findings pave the way for understanding the physiological plasticity of marine bivalves in response to intensifying heatwaves.
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Affiliation(s)
- Guixiang He
- Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yalan Peng
- Zhuhai Central Station of Marine Environmental Monitoring, Ministry of Natural Resources, Zhuhai 519015, China.
| | - Xiaolong Liu
- Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yong Liu
- Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
| | - Jian Liang
- Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
| | - Xin Xu
- Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
| | - Ke Yang
- Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
| | | | - Yang Xu
- Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yuewen Deng
- Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
| | - Liqiang Zhao
- Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China.
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8
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He G, Zou J, Liu X, Liang F, Liang J, Yang K, Masanja F, Xu Y, Zheng Z, Deng Y, Zhao L. Assessing the impact of atmospheric heatwaves on intertidal clams. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 841:156744. [PMID: 35716751 DOI: 10.1016/j.scitotenv.2022.156744] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/13/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Heatwaves have become more frequent and intense in the last two decades, resulting in detrimental effects on marine bivalves and ecosystems they sustain. Intertidal clams inhabit the most physiologically challenging habitats in coastal areas and live already near their thermal tolerance limits. However, whether and to what extent atmospheric heatwaves affect intertidal bivalves remain poorly understood. Here, we investigated physiological responses of the Manila clam, Ruditapes philippinarum, to heatwaves at air temperature regimes of 40 °C and 50 °C occurring frequently and occasionally at the present day in the Beibu Gulf, South China Sea. With the increasing intensity of heatwaves and following only two days of aerial exposure, Manila clams suffered 100 % mortality at 50 °C, indicating that they succumb to near future heatwaves, although they survived under various scenarios of moderate heatwaves. The latter is couched in energetic terms across levels of biological organization. Specifically, Manila clams acutely exposed to heatwaves enhanced their standard metabolic rate to fuel essential physiological maintenance, such as increasing activities of SOD, CAT, MDA, and AKP, and expression of HSP70. These strategies occur likely at the expense of fitness-related functions, as best exemplified by significant depressions in activities of enzymes (NKA, CMA, and T-ATP) and expression levels of genes (PT, KHK, CA, CAS, TYR, TNF-BP, and OSER). When heatwaves occurred again, Manila clams can respond and acclimate to thermal stress by implementing a suite of more ATP-efficient and less energy-costly compensatory mechanisms at various levels of biological organization. It is consequently becoming imperative to uncover underlying mechanisms responsible for such positive response and rapid acclimation to recurrent heatwaves.
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Affiliation(s)
- Guixiang He
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Jie Zou
- Guangxi Institute of Oceanology Co., Ltd, Guangxi Academy of Sciences, Beihai, China
| | - Xiaolong Liu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Feilong Liang
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Jian Liang
- Fisheries College, Guangdong Ocean University, Zhanjiang, China; Department of Fisheries, Tianjin Agricultural University, Tianjin, China
| | - Ke Yang
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | | | - Yang Xu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Zhe Zheng
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Yuewen Deng
- Fisheries College, Guangdong Ocean University, Zhanjiang, China; Guangdong Provincial Laboratory of Marine Ecological Early Warning and Monitoring, Zhanjiang, China.
| | - Liqiang Zhao
- Fisheries College, Guangdong Ocean University, Zhanjiang, China.
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Boutet I, Lacroix C, Devin S, Tanguy A, Moraga D, Auffret M. Does the environmental history of mussels have an effect on the physiological response to additional stress under experimental conditions? THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:149925. [PMID: 34555605 DOI: 10.1016/j.scitotenv.2021.149925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/11/2021] [Accepted: 08/22/2021] [Indexed: 06/13/2023]
Abstract
Expected effects on marine biota of the ongoing elevation of water temperature and high latitudes is of major concern when considering the reliability of coastal ecosystem production. To compare the capacity of coastal organisms to cope with a temperature increase depending on their environmental history, responses of adult blue mussels (Mytilus spp.) taken from two sites differentially exposed to chemical pollution were investigated during an experimental exposure to a thermal stress. Immune parameters were notably altered by extreme warming and transcriptional changes for a broad selection of genes were associated to the temperature increase following a two-step response pattern. Site-specific responses suggested an influence of environmental history and support the possibility of a genetic basis in the physiological response. However no meaningful difference was detected between the response of hybrids and M galloprovincialis. This study brings new information about the capacity of mussels to cope with the ongoing elevation of water temperature in these coastal ecosystems.
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Affiliation(s)
- Isabelle Boutet
- Station Biologique de Roscoff, Laboratoire Adaptation et Diversité en Milieu Marin (UMR 7144 AD2M CNRS-Sorbonne Université), Place Georges Tessier, 29680 Roscoff, France
| | - Camille Lacroix
- Institut Universitaire Européen de la Mer, Laboratoire de Sciences de l'Environnement Marin (UMR 6539 LEMAR CNRS-UBO-IFREMER-IRD), Technopôle Brest-Iroise, 29280 Plouzané, France; CEDRE Conseil et Expertise en Pollutions Accidentelles des Eaux, 715 Rue Alain Colas, CS 41836, 29218 Brest Cedex 2, France
| | - Simon Devin
- Laboratoire Interdisciplinaire des Environnements Continentaux (UMR 7360 LIEC CNRS-Université de Lorraine), 8 rue du Général Delestraint, 57070 Metz. France
| | - Arnaud Tanguy
- Station Biologique de Roscoff, Laboratoire Adaptation et Diversité en Milieu Marin (UMR 7144 AD2M CNRS-Sorbonne Université), Place Georges Tessier, 29680 Roscoff, France
| | - Dario Moraga
- Institut Universitaire Européen de la Mer, Laboratoire de Sciences de l'Environnement Marin (UMR 6539 LEMAR CNRS-UBO-IFREMER-IRD), Technopôle Brest-Iroise, 29280 Plouzané, France
| | - Michel Auffret
- Institut Universitaire Européen de la Mer, Laboratoire de Sciences de l'Environnement Marin (UMR 6539 LEMAR CNRS-UBO-IFREMER-IRD), Technopôle Brest-Iroise, 29280 Plouzané, France.
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10
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Xu Y, Zhang Y, Liang J, He G, Liu X, Zheng Z, Le DQ, Deng Y, Zhao L. Impacts of marine heatwaves on pearl oysters are alleviated following repeated exposure. MARINE POLLUTION BULLETIN 2021; 173:112932. [PMID: 34534933 DOI: 10.1016/j.marpolbul.2021.112932] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/30/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
Marine heatwaves (MHWs) have occurred with increasing duration, frequency and intensity in the past decade in the South China Sea, posing serious threats to marine ecosystems and fisheries. However, the impact of MHWs on marine bivalves - one of the most ecologically and economically important fauna in coastal ecosystems - remains largely unknown. Here, we investigated physiological responses of the pearl oyster, Pinctada maxima inhabiting a newly identified climate change hotspot (Beibu Gulf, South China Sea) to short-lasting and repeatedly-occurring MHWs scenarios. Following 3-day exposure to short-lasting MHWs scenarios with water temperature rapidly arising from 24 °C to 28 °C, 32 °C and 36 °C, respectively, mortality rates of pearl oysters increased, and especially they suffered 100% mortality at 36 °C. Activities of enzymes including acid phosphatase (ACP), alkaline phosphatase (AKP), glutathione (GSH) and level of malondialdehyde (MDA) increased significantly with increasing intensity and duration of MHWs, indicating thermal stress responses. When exposed to repeatedly-occurring MHWs scenarios, mortality rates of pearl oysters increased slightly, and thermal stress responses were alleviated, as exemplified by significant decreases in ACP, AKP, GSH and MDA activities compared with those during short-lasting MHWs scenarios, demonstrating the potential of P. maxima to acclimate rapidly to MHWs. These findings advance our understanding of how marine bivalves respond to MHWs scenarios varying in duration, frequency, and intensity.
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Affiliation(s)
- Yang Xu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Yuehuan Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou 510301, China.
| | - Jian Liang
- Fisheries College, Guangdong Ocean University, Zhanjiang, China; Department of Fisheries, Tianjin Agricultural University, Tianjin, China
| | - Guixiang He
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Xiaolong Liu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Zhe Zheng
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Dung Quang Le
- Institute for Circular Economy Development, Vietnam National University, Ho Chi Minh City, Viet Nam
| | - Yuewen Deng
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Liqiang Zhao
- Fisheries College, Guangdong Ocean University, Zhanjiang, China.
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11
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Ewere EE, Rosic N, Bayer PE, Ngangbam A, Edwards D, Kelaher BP, Mamo LT, Benkendorff K. Marine heatwaves have minimal influence on the quality of adult Sydney rock oyster flesh. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 795:148846. [PMID: 34247068 DOI: 10.1016/j.scitotenv.2021.148846] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 06/15/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
Marine heatwaves (MHWs) are impacting marine biodiversity, including fisheries and aquaculture. However, it is largely unknown which species will be able to endure MHWs and at what price. Here, we applied elevated temperature (2 °C above ambient) and two different heatwave scenarios to adults of the economically important Sydney rock oyster (SRO, Saccostrea glomerata), and evaluated the impact on nutritional properties, gene expression profiles and immune health indicators. We found that elevated temperature (23 °C) and a variable heatwave (VHW) during winter caused some significant differences in the micronutrient and trace elements levels in oyster flesh. There was an increase of lead under VHW and a decrease in chromium, barium and aluminium under elevated temperature. Conversely, gene expression profiles and other physiological parameters, including flesh protein, fatty acid profiles and hemocyte numbers, were not affected by MHWs. These results indicate that adult SRO are reasonably resilient, and should continue to provide high-quality seafood, under near-future ocean warming and moderate heatwave scenarios.
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Affiliation(s)
- Endurance E Ewere
- Marine Ecology Research Centre, Faculty of Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia; Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, PMB 1154, Benin City, Nigeria
| | - Nedeljka Rosic
- Marine Ecology Research Centre, Faculty of Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia; Faculty of Health, Southern Cross University, Gold Coast, Qld 4225, Australia
| | - Philipp E Bayer
- School of Biological Sciences and Institute of Agriculture, University of Western Australia, Perth, Western Australia, Australia
| | - Ajit Ngangbam
- Marine Ecology Research Centre, Faculty of Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia
| | - David Edwards
- School of Biological Sciences and Institute of Agriculture, University of Western Australia, Perth, Western Australia, Australia
| | - Brendan P Kelaher
- Marine Ecology Research Centre, Faculty of Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia; National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW 2450, Australia
| | - Lea T Mamo
- National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW 2450, Australia
| | - Kirsten Benkendorff
- Marine Ecology Research Centre, Faculty of Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia; National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW 2450, Australia.
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12
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Georgoulis I, Feidantsis K, Giantsis IA, Kakale A, Bock C, Pörtner HO, Sokolova IM, Michaelidis B. Heat hardening enhances mitochondrial potential for respiration and oxidative defence capacity in the mantle of thermally stressed Mytilus galloprovincialis. Sci Rep 2021; 11:17098. [PMID: 34429490 PMCID: PMC8384858 DOI: 10.1038/s41598-021-96617-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 08/12/2021] [Indexed: 02/07/2023] Open
Abstract
Ectotherms are exposed to a range of environmental temperatures and may face extremes beyond their upper thermal limits. Such temperature extremes can stimulate aerobic metabolism toward its maximum, a decline in aerobic substrate oxidation, and a parallel increase of anaerobic metabolism, combined with ROS generation and oxidative stress. Under these stressful conditions, marine organisms recruit several defensive strategies for their maintenance and survival. However, thermal tolerance of ectothermic organisms may be increased after a brief exposure to sub-lethal temperatures, a process known as "hardening". In our study, we examined the ability of M. galloprovincialis to increase its thermal tolerance under the effect of elevated temperatures (24, 26 and 28 °C) through the "hardening" process. Our results demonstrate that this process can increase the heat tolerance and antioxidant defense of heat hardened mussels through more efficient ETS activity when exposed to temperatures beyond 24 °C, compared to non-hardened individuals. Enhanced cell protection is reflected in better adaptive strategies of heat hardened mussels, and thus decreased mortality. Although hardening seems a promising process for the maintenance of aquacultured populations under increased seasonal temperatures, further investigation of the molecular and cellular mechanisms regulating mussels' heat resistance is required.
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Affiliation(s)
- Ioannis Georgoulis
- grid.4793.90000000109457005Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Konstantinos Feidantsis
- grid.4793.90000000109457005Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Ioannis A. Giantsis
- grid.184212.c0000 0000 9364 8877Department of Animal Science, Faculty of Agricultural Sciences, University of Western Macedonia, 53100 Florina, Greece
| | - Asimina Kakale
- grid.4793.90000000109457005Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Christian Bock
- grid.10894.340000 0001 1033 7684Alfred-Wegener-Institut, Helmholtz-Center for Polar and Marine Research, Integrative Ecophysiology, Postfach 120161, 27515 Bremerhaven, Germany
| | - Hans O. Pörtner
- grid.10894.340000 0001 1033 7684Alfred-Wegener-Institut, Helmholtz-Center for Polar and Marine Research, Integrative Ecophysiology, Postfach 120161, 27515 Bremerhaven, Germany
| | - Inna M. Sokolova
- grid.10493.3f0000000121858338Department of Marine Biology, Institute for Biological Sciences, University of Rostock, A.-Einstein Str., 3, 18055 Rostock, Germany
| | - Basile Michaelidis
- grid.4793.90000000109457005Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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13
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Fernell M, Rivi V, Batabyal A, Lukowiak K. The temperature sensitivity of memory formation and persistence is altered by cold acclimation in a pond snail. J Exp Biol 2021; 224:269088. [PMID: 34105727 DOI: 10.1242/jeb.242513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 04/26/2021] [Indexed: 01/08/2023]
Abstract
There are reports on the inability of inbred, laboratory-reared Lymnaea stagnalis to perform feeding and aerial respiration in the cold. It has also been suggested that laboratory-bred snails have an inability to perform aerial respiration in winter months in the laboratory. Here, we used an inbred, laboratory-reared strain of Lymnaea (the S-strain) to demonstrate that the snails are capable of performing those behaviours in a cold (4°C) environment after a 2 day acclimation period. In addition, the inbred snails were able to perform aerial respiration during winter months at room temperature (20°C) in the laboratory. The persistence of long-term memory (LTM) was extended for at least 4 weeks by placing S-strain snails into a 4°C environment following training. Typically, the cold block (CB) procedure (1 h at 4°C) immediately after a training session blocks LTM formation in the S-strain but not in a freshly collected strain. Four weeks at 4°C transformed the S-strain phenotype into one resisting the CB procedure. Thus, with a 4 week cold spell snails gain a resistance to the CB procedure, and that would explain why freshly collected snails are resistant to the procedure. However, we found that F1 progeny of a freshly collected strain reared in the laboratory were resistant to the CB procedure. This suggests that an unknown selection resulted in the S-strain being susceptible to the CB procedure.
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Affiliation(s)
- Maria Fernell
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Veronica Rivi
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Anuradha Batabyal
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Ken Lukowiak
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
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14
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Scanes E, Parker LM, Seymour JR, Siboni N, King WL, Danckert NP, Wegner KM, Dove MC, O'Connor WA, Ross PM. Climate change alters the haemolymph microbiome of oysters. MARINE POLLUTION BULLETIN 2021; 164:111991. [PMID: 33485019 DOI: 10.1016/j.marpolbul.2021.111991] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 12/14/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
The wellbeing of marine organisms is connected to their microbiome. Oysters are a vital food source and provide ecological services, yet little is known about how climate change such as ocean acidification and warming will affect their microbiome. We exposed the Sydney rock oyster, Saccostrea glomerata, to orthogonal combinations of temperature (24, 28 °C) and pCO2 (400 and 1000 μatm) for eight weeks and used amplicon sequencing of the 16S rRNA (V3-V4) gene to characterise the bacterial community in haemolymph. Overall, elevated pCO2 and temperature interacted to alter the microbiome of oysters, with a clear partitioning of treatments in CAP ordinations. Elevated pCO2 was the strongest driver of species diversity and richness and elevated temperature also increased species richness. Climate change, both ocean acidification and warming, will alter the microbiome of S. glomerata which may increase the susceptibility of oysters to disease.
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Affiliation(s)
- Elliot Scanes
- The University of Sydney, School of Life and Environmental Sciences, Camperdown, New South Wales 2006, Australia.
| | - Laura M Parker
- The University of New South Wales, School of Biological, Earth and Environmental Sciences, Kensington, New South Wales 2052, Australia
| | - Justin R Seymour
- Climate Change Cluster, University of Technology Sydney, Ultimo, New South Wales 2007, Australia
| | - Nachshon Siboni
- Climate Change Cluster, University of Technology Sydney, Ultimo, New South Wales 2007, Australia
| | - William L King
- Climate Change Cluster, University of Technology Sydney, Ultimo, New South Wales 2007, Australia; Department of Plant Pathology and Environmental Microbiology, The Pennsylvania State University, University Park, PA 16802, USA
| | - Nathan P Danckert
- The University of Sydney, School of Life and Environmental Sciences, Camperdown, New South Wales 2006, Australia
| | - K Mathias Wegner
- Helmholtz Centre for Polar and Marine Research, Alfred Wegener Institute, Coastal Ecology, Wadden Sea Station, List, Sylt 25992, Germany
| | - Michael C Dove
- New South Wales Department of Primary Industries, Port Stephens Fisheries Institute, Taylors Beach, New South Wales 2316, Australia
| | - Wayne A O'Connor
- New South Wales Department of Primary Industries, Port Stephens Fisheries Institute, Taylors Beach, New South Wales 2316, Australia
| | - Pauline M Ross
- The University of Sydney, School of Life and Environmental Sciences, Camperdown, New South Wales 2006, Australia
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15
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Scanes E, Parker LM, O'Connor WA, Dove MC, Ross PM. Heatwaves alter survival of the Sydney rock oyster, Saccostrea glomerata. MARINE POLLUTION BULLETIN 2020; 158:111389. [PMID: 32568086 DOI: 10.1016/j.marpolbul.2020.111389] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 06/11/2023]
Abstract
Heatwaves are an increasing threat to organisms across the globe. Marine and atmospheric heatwaves are predicted to impact sessile intertidal marine organisms, especially when exposed at low tide and unable to seek refuge. The study aimed to determine whether a simulated atmospheric heatwave will alter the survival of selectively bred families of Sydney rock oysters (Saccostrea glomerata), and whether survival is dependent on morphological and physiological traits. The survival of S. glomerata families to a simulated atmospheric heatwave varied from 25 to 60% and was not correlated with morphology or physiology. Survival may depend on the presence of genotypes that translate into molecular defenses such as heat-shock proteins and inhibitor of apoptosis proteins that provide oysters with resilience. Understanding the responses among families of oysters to heatwaves is critical if we are to restore the ecological services of oyster reefs and sustain oyster aquaculture.
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Affiliation(s)
- Elliot Scanes
- The University of Sydney, School of Life and Environmental Sciences, Camperdown, New South Wales 2006, Australia; Sydney Institute of Marine Science, Mosman 2088, New South Wales, Australia.
| | - Laura M Parker
- The University of Sydney, School of Life and Environmental Sciences, Camperdown, New South Wales 2006, Australia; The University of New South Wales, School of Biological, Earth and Environmental Sciences, Kensington, New South Wales 2052, Australia
| | - Wayne A O'Connor
- New South Wales Department of Planning, Industry and Environment, Port Stephens Fisheries Institute, Taylors Beach, New South Wales 2316, Australia
| | - Michael C Dove
- New South Wales Department of Planning, Industry and Environment, Port Stephens Fisheries Institute, Taylors Beach, New South Wales 2316, Australia
| | - Pauline M Ross
- The University of Sydney, School of Life and Environmental Sciences, Camperdown, New South Wales 2006, Australia; Sydney Institute of Marine Science, Mosman 2088, New South Wales, Australia
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