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Rondon R, Valdés C, Cosseau C, Bergami E, Cárdenas CA, Balbi T, Pérez-Toledo C, Garrido I, Perrois G, Chaparro C, Corre E, Corsi I, González-Aravena M. Transcriptomic responses of Antarctic clam Laternula elliptica to nanoparticles, at single and combined exposures reveal ecologically relevant biomarkers. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 280:116523. [PMID: 38850707 DOI: 10.1016/j.ecoenv.2024.116523] [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: 07/10/2023] [Revised: 05/24/2024] [Accepted: 05/27/2024] [Indexed: 06/10/2024]
Abstract
In recent years micro- and nanoplastics and metal-oxide nanomaterials have been found in several environmental compartments. The Antarctic soft clam Laternula elliptica is an endemic Antarctic species having a wide distribution in the Southern Ocean. Being a filter-feeder, it could act as suitable bioindicator of pollution from nanoparticles also considering its sensitivity to various sources of stress. The present study aims to assess the impact of polystyrene nanoparticles (PS-NP) and the nanometal titanium-dioxide (n-TiO2) on genome-wide transcript expression of L. elliptica either alone and in combination and at two toxicological relevant concentrations (5 and 50 µg/L) during 96 h exposure. Transcript-target qRT-PCR was performed with the aim to identify suitable biomarkers of exposure and effects. As expected, at the highest concentration tested, the clustering was clearer between control and exposed clams. A total of 221 genes resulted differentially expressed in exposed clams and control ones, and 21 of them had functional annotation such as ribosomal proteins, antioxidant, ion transport (osmoregulation), acid-base balance, immunity, lipid metabolism, cell adhesion, cytoskeleton, apoptosis, chromatin condensation and cell signaling. At functional level, relevant transcripts were shared among some treatments and could be considered as general stress due to nanoparticle exposure. After applying transcript-target approach duplicating the number of clam samples, four ecologically relevant transcripts were revealed as biomarkers for PS-NP, n-TiO2 and their combination at 50 µg/L, that could be used for monitoring clams' health status in different Antarctic localities.
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Affiliation(s)
- Rodolfo Rondon
- Departamento Científico, Instituto Antártico Chileno, Punta Arenas, Chile.
| | - Catalina Valdés
- Departamento Científico, Instituto Antártico Chileno, Punta Arenas, Chile; The University of Texas Health Science Center at Houston, Houston, USA
| | - Céline Cosseau
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Perpignan, France
| | - Elisa Bergami
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - César Antonio Cárdenas
- Departamento Científico, Instituto Antártico Chileno, Punta Arenas, Chile; Millenium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Santiago, Chile
| | - Teresa Balbi
- Department of Earth Environment & Life Sciences, University of Genoa, Genoa, Italy
| | | | - Ignacio Garrido
- Centro de Investigaciones Dinámica de Ecosistemas Marinos de Altas Latitudes, Valdivia, Chile; Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Garance Perrois
- Departamento Científico, Instituto Antártico Chileno, Punta Arenas, Chile; Tropical & Subtropical Research Center, Korea Institute of Ocean Science and Technology, Jeju 63349, the Republic of Korea
| | - Cristian Chaparro
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Perpignan, France
| | - Erwan Corre
- Faculté de Sciences, CNRS, FR 2424 CNRS, ABIMS, Station Biologique de Roscoff, Université Sorbonne, Roscoff, France
| | - Ilaria Corsi
- Department of Physical, Earth and Environmental Sciences, University of Siena, Siena, Italy
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González-Aravena M, Rotunno C, Cárdenas CA, Torres M, Morley SA, Hurley J, Caro-Lara L, Pozo K, Galban C, Rondon R. Detection of plastic, cellulosic micro-fragments and microfibers in Laternula elliptica from King George Island (Maritime Antarctica). MARINE POLLUTION BULLETIN 2024; 201:116257. [PMID: 38518575 DOI: 10.1016/j.marpolbul.2024.116257] [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: 02/01/2024] [Revised: 02/27/2024] [Accepted: 03/11/2024] [Indexed: 03/24/2024]
Abstract
It is generally acknowledged that microplastic pollutants are prevalent in ocean waters and sediments across a range of tropical, temperate, subpolar, and polar regions. The waters surrounding King George Island are significantly impacted by human activities, particularly those related to scientific stations, fishing, and tourism. Organisms, such as Laternula elliptica, can be used as environmental monitors due to the likelihood that they will bioaccumulate pollutants. The goal of this study was to quantify and identify plastic and cellulosic micro-fragments and microfibers present in the soft body of clams (n = 21), collected from Fildes Bay near sewage and wastewater discharges. Plastic and cellulose microfragments and microfibers were counted, and their compositions were determined using FT-IR. All 21 individuals sampled contained fragments and fibers, with a total of 900 items detected (42.86 ± 25.36 mean ± SD items per individual), or 1.82 items g.wet mass-1. 58 % of items were cellulose and 22 % plastic. Considering the plastic polymer compositions, 28.57 % were polyethylene terephthalate (PET), 21.43 % acrylic, 14.29 % high-density polyethylene (HDPE), 14.29 % Polypropylene (PP), 7.14 % ultra-high drawn polyethylene filament (UHMWPE), 7.14 % polyester and 7.14 % Polyethylene. The quantities and prevalence of MP in L. elliptica were higher than those found in other Antarctic marine species, and even in bivalves from populated regions of the world. Our work assessed the pollution status of L. elliptica near an effluent of wastewater plants and found that 95 % of individuals displayed MP and 100 % microfibers that could impact their population.
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Affiliation(s)
- Marcelo González-Aravena
- Departamento Científico, Instituto Antártico Chileno, Plaza Muñoz Gamero 1055, Punta Arenas, Chile
| | - Carmen Rotunno
- Departamento Científico, Instituto Antártico Chileno, Plaza Muñoz Gamero 1055, Punta Arenas, Chile; Pontificia Universidad Católica de Chile, Santiago de Chile, Chile
| | - César A Cárdenas
- Departamento Científico, Instituto Antártico Chileno, Plaza Muñoz Gamero 1055, Punta Arenas, Chile; Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Santiago de Chile, Chile
| | - Mariett Torres
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Lientur 1457, Concepción, Chile
| | - Simon A Morley
- British Antarctic Survey, Natural Environment Research Council, Cambridge, UK
| | - Jessica Hurley
- British Antarctic Survey, Natural Environment Research Council, Cambridge, UK; Department of Biological and Marine Sciences, University of Hull, Hull, UK
| | - Luis Caro-Lara
- Unidad de Proyectos y Medio Ambiente, Instituto Antártico Chileno, Plaza Muñoz Gamero 1055, Punta Arenas, Chile
| | - Karla Pozo
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Lientur 1457, Concepción, Chile; RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czechia
| | - Cristóbal Galban
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5780, Huechuraba, Santiago de Chile, Chile
| | - Rodolfo Rondon
- Departamento Científico, Instituto Antártico Chileno, Plaza Muñoz Gamero 1055, Punta Arenas, Chile.
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Jossart Q, Bauman D, Moreau CV, Saucède T, Christiansen H, Brasier MJ, Convey P, Downey R, Figuerola B, Martin P, Norenburg J, Rosenfeld S, Verheye M, Danis B. A pioneer morphological and genetic study of the intertidal fauna of the Gerlache Strait (Antarctic Peninsula). ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:514. [PMID: 36973586 DOI: 10.1007/s10661-023-11066-3] [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: 12/07/2022] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
The underexplored intertidal ecosystems of Antarctica are facing rapid changes in important environmental factors. Associated with temperature increase, reduction in coastal ice will soon expose new ice-free areas that will be colonized by local or distant biota. To enable detection of future changes in faunal composition, a biodiversity baseline is urgently required. Here, we evaluated intertidal faunal diversity at 13 locations around the Gerlache Strait (western Antarctic Peninsula), using a combination of a quadrat approach, morphological identification and genetic characterization. Our data highlight a community structure comprising four generally distributed and highly abundant species (the flatworm Obrimoposthia wandeli, the bivalve Kidderia subquadrata, and the gastropods Laevilitorina umbilicata and Laevilitorina caliginosa) as well as 79 rarer and less widely encountered species. The most abundant species thrive in the intertidal zone due to their ability to either survive overwinter in situ or to rapidly colonize this zone when conditions allow. In addition, we confirmed the presence of multiple trophic levels at nearly all locations, suggesting that complex inter-specific interactions occur within these communities. Diversity indices contrasted between sampling locations (from 3 to 32 species) and multivariate approaches identified three main groups. This confirms the importance of environmental heterogeneity in shaping diversity patterns within the investigated area. Finally, we provide the first genetic and photographic baseline of the Antarctic intertidal fauna (106 sequences, 137 macrophotographs), as well as preliminary insights on the biogeography of several species. Taken together, these results provide a timely catalyst to assess the diversity and to inform studies of the potential resilience of these intertidal communities.
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Affiliation(s)
- Quentin Jossart
- Marine Biology, Université Libre de Bruxelles (ULB), Brussels, Belgium.
- Marine Biology, Vrije Universiteit Brussel (VUB), Brussels, Belgium.
- UMR CNRS 6282, Université de Bourgogne, Dijon, France.
| | - David Bauman
- AMAP, Univ Montpellier, CIRAD, CNRS, INRAE, Montpellier, IRD, France
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Camille Ve Moreau
- Marine Biology, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | | | - Henrik Christiansen
- Laboratory of Biodiversity and Evolutionary Genomics, KU Leuven, Leuven, Belgium
- Greenland Institute of Natural Resources, Nuuk, Greenland
| | - Madeleine J Brasier
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia
| | - Peter Convey
- British Antarctic Survey, NERC, Cambridge, United Kingdom
- Department of Zoology, University of Johannesburg, Johannesburg, South Africa
- Millenium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (MI-BASE), Santiago, Chile
| | - Rachel Downey
- Fenner School of Environment & Society, Australian National University, Canberra, Australia
| | | | - Patrick Martin
- Royal Belgian Institute of Natural Sciences, Brussels, Belgium
| | - Jon Norenburg
- Smithsonian Institution National Museum of Natural History, Washington, United States of America
| | - Sebastian Rosenfeld
- Millenium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (MI-BASE), Santiago, Chile
- Laboratorio de Ecosistemas Marinos Antarticos y Subantarticos, Universidad de Magallanes, Punta Arenas, Chile
- Centro de Investigación Gaia‑Antártica, Universidad de Magallanes, Punta Arenas, Chile
| | - Marie Verheye
- Laboratory of Trophic and Isotopes Ecology (LETIS), Université de Liège, Liège, Belgium
- Laboratory of Evolutionary Ecology, Université de Liège, Liège, Belgium
| | - Bruno Danis
- Marine Biology, Université Libre de Bruxelles (ULB), Brussels, Belgium
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Passos FD, Sartori AF, Domaneschi O, Bieler R. Anatomy and behavior of Laternula elliptica, a keystone species of the Antarctic benthos (Bivalvia: Anomalodesmata: Laternulidae). PeerJ 2022; 10:e14380. [PMID: 36523477 PMCID: PMC9745791 DOI: 10.7717/peerj.14380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 10/20/2022] [Indexed: 11/30/2022] Open
Abstract
Laternula elliptica (P. P. King, 1832) is the sole representative of the anomalodesmatan family Laternulidae and the largest bivalve in the Antarctic and Subantarctic. A keystone species of the regional benthic communities, it has reached model status, having been studied in hundreds of scientific works across many biological disciplines. In contrast, its anatomy has remained poorly known, with prior published data limited to partial descriptions based on chemically preserved specimens. Based on observations of aquarium-maintained living animals at the Brazilian Comandante Ferraz Antarctic Station, gross-morphological dissections, and histological sectioning, the comparative anatomy, functional morphology, and aspects of behavior of L. elliptica are described and discussed. Special focus is placed on the pallial organs (including elucidation of cleansing and feeding sorting mechanisms in the mantle cavity) and the musculature. Among the noteworthy findings are the presence of well-developed siphons furnished with sensory tentacles at its tips, some of which bearing eyes; large, folded gills and labial palps capable of sorting the material entering the mantle cavity; an inter-chamber communication in the posterior region of the mantle cavity; an ample ventral mantle fusion with an anterior pedal gape; the absence of a 4th pallial opening; and the absence of a ligamental lithodesma in adult specimens. This study reevaluates the available anatomical data in the literature, both supplementing and correcting previously published accounts.
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Affiliation(s)
- Flávio Dias Passos
- Department of Animal Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - André Fernando Sartori
- THIS Institute, University of Cambridge, Cambridge, United Kingdom,Department of Zoology, Institute of Biosciences, Universidade de São Paulo, São Paulo, Brazil
| | - Osmar Domaneschi
- Department of Zoology, Institute of Biosciences, Universidade de São Paulo, São Paulo, Brazil
| | - Rüdiger Bieler
- Negaunee Integrative Research Center, Field Museum of Natural History, Chicago, Illinois, United States
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Individual-based model of population dynamics in a sea urchin of the Kerguelen Plateau (Southern Ocean), Abatus cordatus, under changing environmental conditions. Ecol Modell 2021. [DOI: 10.1016/j.ecolmodel.2020.109352] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Guillaumot C, Saucède T, Morley SA, Augustine S, Danis B, Kooijman S. Can DEB models infer metabolic differences between intertidal and subtidal morphotypes of the Antarctic limpet Nacella concinna (Strebel, 1908)? Ecol Modell 2020. [DOI: 10.1016/j.ecolmodel.2020.109088] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cárdenas CA, González-Aravena M, Santibañez PA. The importance of local settings: within-year variability in seawater temperature at South Bay, Western Antarctic Peninsula. PeerJ 2018; 6:e4289. [PMID: 29372123 PMCID: PMC5776021 DOI: 10.7717/peerj.4289] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 01/03/2018] [Indexed: 11/20/2022] Open
Abstract
The Western Antarctic Peninsula (WAP) has undergone significant changes in air and seawater temperatures during the last 50 years. Although highly stenotherm Antarctic organisms are expected to be severely affected by the increase of seawater temperature, high-resolution datasets of seawater temperature within coastal areas of the WAP (where diverse marine communities have been reported) are not commonly available. Here we report on within-year (2016–2017) variation in seawater temperature at three sites on Doumer Island, Palmer Archipelago, WAP. Within a year, Antarctic organisms in South Bay were exposed to water temperatures in excess of 2 °C for more than 25 days and 2.5 °C for more than 10 days. We recorded a temperature range between −1.7° to 3.0 °C. Warming of seawater temperature was 3.75 times faster after October 2016 than it was before October. Results from this study indicate that organisms at South Bay are already exposed to temperatures that are being used in experimental studies to evaluate physiological responses to thermal stress in WAP organisms. Continuous measurements of short to long-term variability in seawater temperature provides important information for parametrizing meaningful experimental treatments that aim to assess the local effects of environmental variation on Antarctic organisms under future climate scenarios.
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Affiliation(s)
- César A Cárdenas
- Departamento Científico, Instituto Antártico Chileno, Punta Arenas, Chile
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Taylor JD, Glover EA, Harper EM, Crame JA, Ikebe C, Williams ST. Left in the cold? Evolutionary origin of Laternula elliptica, a keystone bivalve species of Antarctic benthos. Biol J Linn Soc Lond 2018. [DOI: 10.1093/biolinnean/blx144] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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