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Fernández C, Poupin MJ, Lagos NA, Broitman BR, Lardies MA. Physiological resilience of intertidal chitons in a persistent upwelling coastal region. Sci Rep 2024; 14:21401. [PMID: 39271926 PMCID: PMC11399262 DOI: 10.1038/s41598-024-72488-8] [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: 05/30/2024] [Accepted: 09/09/2024] [Indexed: 09/15/2024] Open
Abstract
Current climate projections for mid-latitude regions globally indicate an intensification of wind-driven coastal upwelling due to warming conditions. The dynamics of mid-latitude coastal upwelling are marked by environmental variability across temporal scales, which affect key physiological processes in marine calcifying organisms and can impact their large-scale distribution patterns. In this context, marine invertebrates often exhibit phenotypic plasticity, enabling them to adapt to environmental change. In this study, we examined the physiological performance (i.e., metabolism, Thermal Performance Curves, and biomass and calcification rates) of individuals of the intertidal mollusk Chiton granosus, a chiton found from northern Peru to Cape Horn (5° to 55°S). Our spatial study design indicated a pattern of contrasting conditions among locations. The Talcaruca site, characterized by persistent upwelling and serving as a biogeographic break, exhibited lower pH and carbonate saturation states, along with higher pCO2, compared to the sites located to the north and south of this location (Huasco and Los Molles, respectively). In agreement with the spatial pattern in carbonate system parameters, long-term temperature records showed lower temperatures that changed faster over synoptic scales (1-15 days) at Talcaruca, in contrast to the more stable conditions at the sites outside the break. Physiological performance traits from individuals from the Talcaruca population exhibited higher values and more significant variability, along with significantly broader and greater warming tolerance than chitons from the Huasco and Los Molles populations. Moreover, marked changes in local abundance patterns over three years suggested population-level responses to the challenging environmental conditions at the biogeographic break. Thus, C. granosus from the Talcaruca upwelling zone represents a local population with wide tolerance ranges that may be capable of withstanding future upwelling intensification on the Southern Eastern Pacific coast and likely serving as a source of propagules for less adapted populations.
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Affiliation(s)
- Carolina Fernández
- Laboratorio de Bioingeniería, Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Santiago, Chile
| | - María Josefina Poupin
- Laboratorio de Bioingeniería, Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Santiago, Chile
- Center of Applied Ecology and Sustainability (CAPES), Santiago, Chile
- Millennium Nucleus for the Development of Super Adaptable Plants (MN-SAP), Santiago, Chile
| | - Nelson A Lagos
- Centro de Investigación E Innovación, Para El Cambio Climático (CiiCC), Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile
- Instituto Milenio de Socio-Ecología Costera (SECOS), Santiago, Chile
| | - Bernardo R Broitman
- Instituto Milenio de Socio-Ecología Costera (SECOS), Santiago, Chile
- Facultad de Artes Liberales, Universidad Adolfo Ibáñez, Santiago, Viña del Mar, Chile
| | - Marco Antonio Lardies
- Instituto Milenio de Socio-Ecología Costera (SECOS), Santiago, Chile.
- Facultad de Artes Liberales, Universidad Adolfo Ibáñez, Santiago, Viña del Mar, Chile.
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2
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Saavedra LM, Bastías M, Mendoza P, Lagos NA, García-Herrera C, Ponce V, Alvarez F, Llanos-Rivera A. Environmental correlates of oyster farming in an upwelling system: Implication upon growth, biomass production, shell strength and organic composition. MARINE ENVIRONMENTAL RESEARCH 2024; 198:106489. [PMID: 38640688 DOI: 10.1016/j.marenvres.2024.106489] [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: 11/23/2023] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/21/2024]
Abstract
Comprehending the potential effects of environmental variability on bivalves aquaculture becomes crucial for its sustainability under climate change scenarios, specially in the Humboldt Current System (HCS) where upwelling intensification leading to frequent hypoxia and acidification is expected. In a year-long study, Pacific oysters (Magallana gigas) were monitored at two depths (1.5m, 6.5m) in a bay affected by coastal upwelling. Surface waters exhibited warmer, well-oxygenated conditions and higher chlorophyll-a concentrations, while at depth greater hypoxia and acidification events occur, especially during upwelling. Surface cultured oysters exhibited 60 % larger size and 35% greater weight due to faster growth rate during the initial month of cultivation. The condition index (CI) increases in surface oysters after 10 months, whereas those at the bottom maintain a lower index. Food availability, temperature, and oxygen, correlates with higher growth rates, while pH associates with morphometric variables, indicating that larger oysters tend to develop under higher pH. Increased upwelling generally raises CI, but bottom oysters face stressful conditions such as hypoxia and acidification, resulting in lower performance. However, they acclimate by changing the organic composition of their shells and making them stronger. This study suggests that under intensified upwelling scenario, oysters would grow slowly, resulting in smaller sizes and lower performance, but the challenges may be confronted through complex compensation mechanisms among biomass production and maintenance of the shell structure and function. This poses a significant challenge for the sustainability of the aquaculture industry, emphasizing the need for adaptive strategies to mitigate the effects of climate change.
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Affiliation(s)
- Luisa M Saavedra
- Department of Aquatic Systems and EULA Environmental Science Center, Faculty of Environmental Sciences, University of Concepción, Chile.
| | - Manuel Bastías
- Oceanography department, Faculty of Natural and Oceanographic Science, University of Concepción, Chile
| | - Paula Mendoza
- Department of Aquatic Systems and EULA Environmental Science Center, Faculty of Environmental Sciences, University of Concepción, Chile
| | - Nelson A Lagos
- Centro de Investigación e Innovación para el Cambio Climático (CiiCC), Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile; Instituto Milenio en Socio-Ecología Costera (SECOS), Santiago, Chile
| | - Claudio García-Herrera
- Laboratorio de Biomecánica y Biomateriales, Departamento de Ingeniería Mecánica, Universidad de Santiago de Chile, Santiago, Chile
| | - Vania Ponce
- Centro de Investigación e Innovación para el Cambio Climático (CiiCC), Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile
| | - Fabian Alvarez
- Laboratorio de Biomecánica y Biomateriales, Departamento de Ingeniería Mecánica, Universidad de Santiago de Chile, Santiago, Chile
| | - Alejandra Llanos-Rivera
- Oceanography department, Faculty of Natural and Oceanographic Science, University of Concepción, Chile
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3
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Seo H, Cho B, Joo S, Ahn IY, Kim T. Archival records of the Antarctic clam shells from Marian Cove, King George Island suggest a protective mechanism against ocean acidification. MARINE POLLUTION BULLETIN 2024; 200:116052. [PMID: 38290361 DOI: 10.1016/j.marpolbul.2024.116052] [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: 07/04/2023] [Revised: 01/12/2024] [Accepted: 01/13/2024] [Indexed: 02/01/2024]
Abstract
Continuous emissions of anthropogenic CO2 are changing the atmospheric and oceanic environment. Although some species may have compensatory mechanisms to acclimatize or adapt to the changing environment, most marine organisms are negatively influenced by climate change. In this study, we aimed to understand the compensatory mechanisms of the Antarctic clam, Laternula elliptica, to climate-related stressors by using archived shells from 1995 to 2018. Principal component analysis revealed that seawater pCO2 and salinity in the Antarctic Ocean, which have increased since the 2000's, are the most influential factors on the characteristics of the shell. The periostracum thickness ratio and nitrogen on the outermost surface have increased, and the dissolution area (%) has decreased. Furthermore, the calcium content and mechanical properties of the shells have not changed. The results suggest that L. elliptica retains the mechanism of protecting the shell from high pCO2 by thickening the periostracum as a phenotype plasticity.
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Affiliation(s)
- Hyein Seo
- Program in Biomedical Science and Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; Department of Ocean Sciences, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| | - Boongho Cho
- Program in Biomedical Science and Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; Department of Ocean Sciences, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| | - Soobin Joo
- Program in Biomedical Science and Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; Department of Ocean Sciences, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| | - In-Young Ahn
- Korea Polar Research Institute, 26 songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea
| | - Taewon Kim
- Program in Biomedical Science and Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; Department of Ocean Sciences, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea.
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4
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Roza-Llera A, Di Lorenzo F, Churakov SV, Jiménez A, Fernández-Díaz L. Pb Removal Efficiency by Calcium Carbonates: Biogenic versus Abiogenic Materials. CRYSTAL GROWTH & DESIGN 2024; 24:79-92. [PMID: 38188268 PMCID: PMC10767703 DOI: 10.1021/acs.cgd.3c00517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 11/10/2023] [Accepted: 11/13/2023] [Indexed: 01/09/2024]
Abstract
The sorption of heavy metals on mineral surfaces plays a key role in controlling the fate and bioavailability of harmful elements through dissolution-precipitation reactions. Here, we investigate the efficiency of Pb removal from highly contaminated waters by two calcium carbonate hard tissues, scallop shells (up to 99.9 mol %; -biocalcite) and cuttlefish bones (up to 90.0 mol %; bioaragonite), which template the precipitation of the highly insoluble mineral cerussite (PbCO3). The experiments show that both biomaterials are about five times more effective Pb scavengers (5 mmol of cerussite precipitated/g sample) than their inorganic counterparts (∼1 mmol/g). We relate this enhanced Pb scavenging capacity of biocarbonates to their composite organic-inorganic nature, which modulates their specific nano- and microstructural features and defines their larger surface areas, solubility, and reactivity compared to those of their inorganic counterparts. The oriented growth of cerussite progressively passivates the bioaragonite surface, reducing its long-term Pb scavenging capacity. In contrast, the randomly oriented growth of cerussite crystals on biocalcite prevents surface passivation and explains why biocalcite outperforms bioaragonite as a long-term Pb scavenger. The use of biocarbonates could be a key for designing more efficient decontamination strategies for heavy metal-polluted waters.
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Affiliation(s)
- Ana Roza-Llera
- Department
of Geology, University of Oviedo, Oviedo 33005, Spain
| | - Fulvio Di Lorenzo
- Laboratory
for Waste Management, Paul Scherrer Institute, Villigen 5232, Switzerland
| | - Sergey V. Churakov
- Laboratory
for Waste Management, Paul Scherrer Institute, Villigen 5232, Switzerland
| | - Amalia Jiménez
- Department
of Geology, University of Oviedo, Oviedo 33005, Spain
| | - Lurdes Fernández-Díaz
- Department
of Mineralogy and Petrology, Complutense
University of Madrid, Madrid 28040, Spain
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5
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Paredes-Molina FJ, Chaparro OR, Navarro JM, Cubillos VM, Paschke K, Márquez F, Averbuj A, Zabala MS, Bökenhans V, Pechenik JA. Upwelling as a stressor event during embryonic development: Consequences for encapsulated and early juvenile stages of the marine gastropod Acanthina monodon. MARINE ENVIRONMENTAL RESEARCH 2024; 193:106270. [PMID: 38011827 DOI: 10.1016/j.marenvres.2023.106270] [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: 05/31/2023] [Revised: 10/18/2023] [Accepted: 11/10/2023] [Indexed: 11/29/2023]
Abstract
Upwelling phenomena alter the physical and chemical parameters of the sea's subsurface waters, producing low levels of temperature, pH and dissolved oxygen, which can seriously impact the early developmental stages of marine organisms. To understand how upwelling can affect the encapsulated development of the gastropod Acanthina monodon, capsules containing embryos at different stages of development (initial, intermediate and advanced) were exposed to upwelling conditions (pH = 7.6; O2 = 3 mg L-1; T° = 9 °C) for a period of 7 days. Effects of treatment were determined by estimating parameters such as time to hatching, number of hatchlings per capsule, percentage of individuals with incomplete development, and shell parameters such as shell shape and size, shell strength, and the percentage of the organic/inorganic content. We found no significant impacts on hatching time, number of hatchlings per capsule, or percentage of incomplete development in either the presence or absence of upwelling, regardless of developmental stage. On the other hand, latent effects on encapsulated stages of A. monodon were detected in embryos that had been exposed to upwelling stress in the initial embryonic stage. The juveniles from this treatment hatched at smaller sizes and with higher organic content in their shells, resulting in a higher resistance to cracking 30 days after hatching, due to greater elasticity. Geometric morphometric analysis showed that exposure to upwelling condition induced a change in the morphology of shell growth in all post-hatching juveniles (0-30 days), regardless of embryonic developmental stage at the time of exposure. Thus, more elongated shells (siphonal canal and posterior region) and more globular shells were observed in newly hatched juveniles that had been exposed to the upwelling condition. The neutral or even positive upwelling exposure results suggests that exposure to upwelling events during the encapsulated embryonic phase of A. monodon development might not have major impacts on the future juvenile stages. However, this should be taken with caution in consideration of the increased frequency and intensity of upwelling events predicted for the coming decades.
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Affiliation(s)
- F J Paredes-Molina
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile.
| | - O R Chaparro
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - J M Navarro
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Universidad Austral de Chile, Valdivia, Chile
| | - V M Cubillos
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - K Paschke
- Instituto de Acuicultura, Universidad Austral de Chile, Puerto Montt, Chile; Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Universidad Austral de Chile, Valdivia, Chile; Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems, BASE, Universidad Austral de Chile, Chile
| | - F Márquez
- Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos (LARBIM)-IBIOMAR, CCT, CONICET-CENPAT, Puerto Madryn, Chubut, Argentina; Universidad Nacional de La Patagonia San Juan Bosco (UNPSJB), Puerto Madryn, Argentina
| | - A Averbuj
- Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos (LARBIM)-IBIOMAR, CCT, CONICET-CENPAT, Puerto Madryn, Chubut, Argentina
| | - M S Zabala
- Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos (LARBIM)-IBIOMAR, CCT, CONICET-CENPAT, Puerto Madryn, Chubut, Argentina
| | - V Bökenhans
- Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos (LARBIM)-IBIOMAR, CCT, CONICET-CENPAT, Puerto Madryn, Chubut, Argentina
| | - J A Pechenik
- Biology Department, Tufts University, Medford, MA, 02155, USA
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6
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Guo X, Huang M, Luo X, You W, Ke C. Impact of ocean acidification on shells of the abalone species Haliotis diversicolor and Haliotis discus hannai. MARINE ENVIRONMENTAL RESEARCH 2023; 192:106183. [PMID: 37820478 DOI: 10.1016/j.marenvres.2023.106183] [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: 07/12/2023] [Revised: 08/20/2023] [Accepted: 09/15/2023] [Indexed: 10/13/2023]
Abstract
Ocean acidification (OA) results from the absorption of anthropogenic CO2 emissions by the ocean and threatens the survival of many marine calcareous organisms including molluscs. We studied OA effects on adult shells of the abalone species Haliotis diversicolor and Haliotis discus hannai that were exposed to three pCO2 conditions (ambient, ∼880, and ∼1600 μatm) for 1 year. Shell periostracum corrosion under OA was observed for both species. OA reduced shell hardness and altered the nacre ultrastructure in H. diversicolor, making its shells more vulnerable to crushing force. OA exposure did not reduce the shell hardness of H. discus hannai and did not alter nacre ultrastructure. However, the reduced calcification also decreased its resistance to crushing force. Sr/Ca in the shell increased with rising calcification rate. Mg/Ca increased upon OA exposure could be due to a complimentary mechanism of preventing shell hardness further reduced. The Na/Ca distribution between the aragonite and calcite of abalone shells was also changed by OA. In general, both abalone species are at a greater risk in a more acidified ocean. Their shells may not provide sufficient protection from predators or to transportation stress in aquaculture.
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Affiliation(s)
- Xiaoyu Guo
- College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou, 362000, PR China; National Observation and Research Station for the Taiwan Strait Marine Ecosystem, Xiamen University, Zhangzhou, China; Fujian Province Key Laboratory for the Development of Bioactive Material from Marine Algae, Quanzhou Normal University, Quanzhou, 362000, PR China
| | - Miaoqin Huang
- National Observation and Research Station for the Taiwan Strait Marine Ecosystem, Xiamen University, Zhangzhou, China
| | - Xuan Luo
- National Observation and Research Station for the Taiwan Strait Marine Ecosystem, Xiamen University, Zhangzhou, China
| | - Weiwei You
- National Observation and Research Station for the Taiwan Strait Marine Ecosystem, Xiamen University, Zhangzhou, China
| | - Caihuan Ke
- National Observation and Research Station for the Taiwan Strait Marine Ecosystem, Xiamen University, Zhangzhou, China.
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7
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Marshall DJ, Rashid A. Organismal Responses to Coastal Acidification Informed by Interrelating Erosion, Roundness and Growth of Gastropod Shells. Zool Stud 2023; 62:e41. [PMID: 37941798 PMCID: PMC10628549 DOI: 10.6620/zs.2023.62-41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 06/19/2023] [Indexed: 11/10/2023]
Abstract
urrent understanding of how calcifying organisms respond to externally forced oceanic and coastal acidification (OCA) is largely based on short-term, controlled laboratory or mesocosm experiments. Studies on organismal responses to acidification (reduced carbonate saturation and pH) in the wild, where animals simultaneously interact with a range of biotic and abiotic circumstances, are limited in scope and interpretation. The present study aimed to better understand how gastropod shell attributes and their interrelations can inform about responses to coastal acidification. We investigated shell chemical erosion, shell roundness, and growth rate of Planaxis sulcatus snails, which are locally exposed to acidified and non-acidified rocky intertidal water. We tested a new approach to quantifying shell erosion based on the spiral suture length (EI, erosion index) and found that shell erosion mirrored field acidification conditions. Exposure to acidification caused shells to become rounder (width/length). Field growth rate, determined from apertural margin extension of marked and later recaptured snails, was strongly negatively related to both shell erosion and shell roundness. Since different shell attributes are indicative of different relationships-shell erosion is an extrinsic passive marker of acidification, and shell roundness and growth rate are intrinsic performance responders-analyzing their interrelations can imply causation, enhance predictive power, and bolster interpretation confidence. This study contributes to the methodology and interpretation of findings of trait-based field investigations to understand organismal responses to coastal acidification.
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Affiliation(s)
- David J Marshall
- Environmental and Life Sciences, Faculty of Science, Jalan Tungku Link, Gadong, Universiti Brunei Darussalam, Brunei Darussalam, BE1410. E-mail: (Marshall)
| | - Amira Rashid
- Environmental and Life Sciences, Faculty of Science, Jalan Tungku Link, Gadong, Universiti Brunei Darussalam, Brunei Darussalam, BE1410. E-mail: (Marshall)
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Jia R, Li P, Chen C, Liu L, Li ZH. Shellfish-algal systems as important components of fisheries carbon sinks: Their contribution and response to climate change. ENVIRONMENTAL RESEARCH 2023; 224:115511. [PMID: 36801235 DOI: 10.1016/j.envres.2023.115511] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/30/2023] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
In the context of global climate change, ocean acidification and warming are becoming increasingly serious. Adding carbon sinks in the ocean is an important part of efforts to mitigate climate change. Many researchers have proposed the concept of a fisheries carbon sink. Shellfish-algal systems are among the most important components of fisheries carbon sinks, but there has been limited research on the impact of climate change on shellfish-algal carbon sequestration systems. This review assesses the impact of global climate change on shellfish-algal carbon sequestration systems and provides a rough estimate of the global shellfish-algal carbon sink capacity. This review evaluates the impact of global climate change on shellfish-algal carbon sequestration systems. We review relevant studies that have examined the effects of climate change on such systems from multiple levels, perspectives, and species. There is an urgent need for more realistic and comprehensive studies given expectations about the future climate. Such studies should provide a better understanding of the mechanisms by which the carbon cycle function of marine biological carbon pumps may be affected in realistic future environmental conditions and the patterns of interaction between climate change and ocean carbon sinks.
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Affiliation(s)
- Ruolan Jia
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Ping Li
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Chengzhuang Chen
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Ling Liu
- Marine College, Shandong University, Weihai, Shandong, 264209, China
| | - Zhi-Hua Li
- Marine College, Shandong University, Weihai, Shandong, 264209, China.
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Benítez S, Figueroa Á, Lagos NA, Silva AX, Duarte C, Vargas CA, Lardies MA, Cárdenas L. Differential gene expression analysis in the scallop Argopecten purpuratus exposed to altered pH and temperature conditions in an upwelling-influenced farming area. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2023; 45:101046. [PMID: 36495831 DOI: 10.1016/j.cbd.2022.101046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/17/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022]
Abstract
Increased carbon dioxide in the atmosphere and its absorption across the ocean surface will alter natural variations in pH and temperature levels, occurring in coastal upwelling ecosystems. The scallop Argopecten purpuratus, one of the most economically important species farmed in northern Chile, has been shown to be vulnerable to these environmental drivers. However, the regulatory responses at the gene-level of scallops to these climate stressors remain almost unknown. Consequently, we used an orthogonal experimental design and RNAseq approach to analyze the acute effects of variability in pH and temperature on gene expression in the muscle tissue of A. purpuratus. In respect to control conditions (pH ~ 8.0/ 14 °C), the influence of low pH (~ 7.7) and temperature (14 °C) induced the activation of several genes associated with apoptotic signaling pathways and protein localization to plasma membrane. Elevated temperature (18 °C) and pH (~8.0) conditions increased the expression of transcripts associated with the activation of muscle contraction, regulation, and sarcomere organization effects on muscle tissue. In scallops exposed to low pH and elevated temperature, the genes expressed were differentially associated with the oxidation-reduction process, signal translation, and positive regulation of GTPase activity. These results indicated that the differentially expressed genes under the experimental conditions tested are mainly related to the mitigation of cellular damage and homeostasis control. Our results add knowledge about the function of the adductor muscle in response to stressors in scallops. Furthermore, these results could help in the identification of molecular biomarkers of stress necessary to be integrated into the aquaculture programs for the mitigation of climate change.
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Affiliation(s)
- Samanta Benítez
- Programa de Doctorado en Biología Marina, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile; Centro de Investigación e Innovación para el Cambio Climático, Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile
| | - Álvaro Figueroa
- Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Nelson A Lagos
- Centro de Investigación e Innovación para el Cambio Climático, Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile; Instituto Milenio de Socio-Ecología Costera (SECOS), Santiago, Chile
| | - Andrea X Silva
- AUSTRAL-omics, Vicerrectoría de Investigación, Desarrollo y Creación Artística, Universidad Austral de Chile, Chile
| | - Cristian Duarte
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Cristian A Vargas
- Instituto Milenio de Socio-Ecología Costera (SECOS), Santiago, Chile; Laboratorio de Ecosistemas Costeros y Cambio Ambiental Global (ECCALab), Facultad de Ciencias Ambientales & Centro EULA Chile, Universidad de Concepción, Concepción, Chile
| | - Marco A Lardies
- Instituto Milenio de Socio-Ecología Costera (SECOS), Santiago, Chile; Departamento de Ciencias, Facultad de Artes Liberales, Universidad Adolfo Ibañez, Santiago, Chile
| | - Leyla Cárdenas
- Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile.
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10
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Labra FA, San Martín VA, Jahnsen-Guzmán N, Fernández C, Zapata J, García-Huidobroro MR, Duarte C, García-Herrera C, Vivanco JF, Lardies MA, Lagos NA. Metabolic rate allometry in intertidal mussels across environmental gradients: The role of coastal carbonate system parameters in mediating the effects of latitude and temperature. MARINE POLLUTION BULLETIN 2022; 184:114149. [PMID: 36162293 DOI: 10.1016/j.marpolbul.2022.114149] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 09/12/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
We assess the role of direct and indirect effects of coastal environmental drivers (including the parameters of the carbonate system) on energy expenditure (MR) and body mass (M) of the intertidal mussel, Perumytilus purpuratus, across 10 populations distributed over 2800 km along the Southern Eastern Pacific (SEP) coast. We find biogeographic and local variation in carbonate system variables mediates the effects of latitude and temperature on metabolic rate allometry along the SEP coast. Also, the fitted Piecewise Structural Equation models (PSEM) have greater predictive ability (conditional R2 = 0.95) relative to the allometric scaling model (R2 = 0.35). The largest standardized coefficients for MR and M were determined by the influence of temperature and latitude, followed by pCO2, pH, total alkalinity, and salinity. Thus, physiological diversity of P. purpuratus along the SEP coast emerges as the result of direct and indirect effects of biogeographic and local environmental variables.
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Affiliation(s)
- Fabio A Labra
- Centro de Investigación e Innovación para el Cambio Climático, Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile.
| | - Valeska A San Martín
- Centro de Investigación e Innovación para el Cambio Climático, Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile
| | - Nicole Jahnsen-Guzmán
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Carolina Fernández
- Departamento de Ciencias, Facultad de Artes Liberales, Universidad Adolfo Ibáñez, Santiago, Chile
| | - Javier Zapata
- Centro de Investigación e Innovación para el Cambio Climático, Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile
| | - M Roberto García-Huidobroro
- Centro de Investigación e Innovación para el Cambio Climático, Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile
| | - Cristián Duarte
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Claudio García-Herrera
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Santiago de Chile, Santiago, Chile
| | - Juan F Vivanco
- Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Viña del Mar, Chile
| | - Marco A Lardies
- Departamento de Ciencias, Facultad de Artes Liberales, Universidad Adolfo Ibáñez, Santiago, Chile; Instituto Milenio de Socio-Ecología Costera - SECOS, Santiago, Chile
| | - Nelson A Lagos
- Centro de Investigación e Innovación para el Cambio Climático, Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile; Instituto Milenio de Socio-Ecología Costera - SECOS, Santiago, Chile
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11
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Abarca-Ortega A, Muñoz-Moya E, Pacheco Alarcón M, García-Herrera CM, Celentano DJ, Lagos NA, Lardies MA. Biomechanical Characterization of Scallop Shells Exposed to Ocean Acidification and Warming. Front Bioeng Biotechnol 2022; 9:813537. [PMID: 35127676 PMCID: PMC8811142 DOI: 10.3389/fbioe.2021.813537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 12/28/2021] [Indexed: 11/21/2022] Open
Abstract
Increased carbon dioxide levels (CO2) in the atmosphere triggered a cascade of physical and chemical changes in the ocean surface. Marine organisms producing carbonate shells are regarded as vulnerable to these physical (warming), and chemical (acidification) changes occurring in the oceans. In the last decade, the aquaculture production of the bivalve scallop Argopecten purpuratus (AP) showed declined trends along the Chilean coast. These negative trends have been ascribed to ecophysiological and biomineralization constraints in shell carbonate production. This work experimentally characterizes the biomechanical response of AP scallop shells subjected to climate change scenarios (acidification and warming) via quasi-static tensile and bending tests. The experimental results indicate the adaptation of mechanical properties to hostile growth scenarios in terms of temperature and water acidification. In addition, the mechanical response of the AP subjected to control climate conditions was analyzed with finite element simulations including an anisotropic elastic constitutive model for a two-fold purpose: Firstly, to calibrate the material model parameters using the tensile test curves in two mutually perpendicular directions (representative of the mechanical behavior of the material). Secondly, to validate this characterization procedure in predicting the material’s behavior in two mechanical tests.
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Affiliation(s)
- Aldo Abarca-Ortega
- Departamento de Ingeniería Mecánica, Universidad de Santiago de Chile, Santiago, Chile
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Madrid, Spain
| | - Estefano Muñoz-Moya
- Departamento de Ingeniería Mecánica, Universidad de Santiago de Chile, Santiago, Chile
| | | | - Claudio M. García-Herrera
- Departamento de Ingeniería Mecánica, Universidad de Santiago de Chile, Santiago, Chile
- *Correspondence: Claudio M. García-Herrera,
| | - Diego J. Celentano
- Departamento de Ingeniería Mecánica y Metalúrgica, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Nelson A. Lagos
- Centro de Investigación e Innovación para el Cambio Climático (CiiCC), Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile
| | - Marco A. Lardies
- Departamento de Ciencias, Facultad de Artes Liberales, Universidad Adolfo Ibañez, Santiago, Chile
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