Antarctic science in Chile: a bibliometric analysis of scientific productivity during the 2009-2019 period Marcelo González-Aravena, Lucas Krüger, Lorena Rebolledo, Ricardo Jaña, Anelio Aguayo-Lobo, et al. Antarctic Science, 2023 The changes implemented in 2005 in the development strategies of Antarctic science carried out by Chile have had a positive impact on the scientific productivity of the Chilean Antarctic Science Program (PROCIEN). We analysed scientometric indicators from between 2009 and 2019. The bibliographic data were extracted from the Web of Science database using search query keywords. We used multiple correspondence analysis to identify specific trends and also network analyses of international collaboration in VOSviewer. The number of Antarctic science publications in Chile has gradually increased from 21 in 2009 to 95 in 2019. The rise in the number of articles was higher in journals for the first impact factor quartile. Research lines showing increased first-quartile impact factor papers corresponded to Antarctic ecosystems, biotechnology and geosciences. The main geographical domains in which such research activities have been carried out corresponded to in the South Shetland Islands and the Antarctic Peninsula. Fieldwork data are the main sources for the production of scientific articles, and there are three science platforms within which most of these papers concentrate. The diversification of funding sources, the implementation of improvements in the selection process and Chile's alignment with Scientific Committee on Antarctic Research programmes have contributed to improving the science that Chile has developed in Antarctica.
Unravelling the suitability of Branchinecta gaini as a potential biomonitor of contaminants of emerging concern in the Antarctic Peninsula region Marcelo González-Aravena, Graciela Iturra, Alejandro Font, César A. Cárdenas, Rodolfo Rondon, et al. Antarctic Science, 2022 The occurrence and impact of contaminants of emerging concerns (CECs) have been investigated in Antarctica much less than in other parts of the world. Although legacy anthropogenic pollutants can reach Antarctica via long-range transport, CECs mainly originate from local sources. Here, we investigated the ability of a freshwater crustacean, the Antarctic fairy shrimp Branchinecta gaini, to cope with nanoscale titanium dioxide (n-TiO2), a widely used pigment in consumer products (e.g. paintings), including those for personal care (e.g. sunscreens). An in vivo acute short-term exposure study (9 h, n-TiO2 concentration range 50–200 μg ml-1) was performed and the expression levels of several genes involved in stress response were evaluated. No effect on the expression of heat-shock protein chaperone genes was found, with the exception of Hsp70a, which was significantly upregulated at 200 μg ml-1 n-TiO2. Similarly, cytochrome P450 was upregulated at 100 and 200 μg ml-1 n-TiO2, while the expression levels of cathepsin L and of antioxidant genes such as superoxide dismutase and glutathione peroxidase were significantly reduced with increasing concentrations of n-TiO2. This study shows for the first time the responsiveness and sensitivity of an Antarctic freshwater crustacean to n-TiO2 exposure and supports its suitability as a biomonitor of CECs in Antarctica.
Stability of the Microbiome of the Sponge Mycale (Oxymycale) acerata in the Western Antarctic Peninsula Lea Happel, Rodolfo Rondon, Alejandro Font, Marcelo González-Aravena, César A. Cárdenas Frontiers in Microbiology, 2022 The sponge microbiome, especially in Low Microbial Abundance (LMA) species, is expected to be influenced by the local environment; however, contrasting results exist with evidence showing that host specificity is also important, hence suggesting that the microbiome is influenced by host-specific and environmental factors. Despite sponges being important members of Southern Ocean benthic communities, their relationships with the microbial communities they host remain poorly studied. Here, we studied the spatial and temporal patterns of the microbiota associated with the ecologically important LMA sponge M. acerata at sites along ∼400 km of the Western Antarctic Peninsula (WAP) to assess patterns in the core and variable microbial components of the symbiont communities of this sponge species. The analyses of 31 samples revealed that the microbiome of M. acerata is composed of 35 prokaryotic phyla (3 Archaea, 31 Bacteria, and one unaffiliated), being mainly dominated by Proteobacteria with Gammaproteobacteria as the most dominant class. The core community was composed of six prokaryotic OTUs, with gammaproteobacterial OTU (EC94 Family), showing a mean abundance over 65% of the total abundance. Despite some differences in rare OTUs, the core community did not show clear patterns in diversity and abundance associated with specific sites/environmental conditions, confirming a low variability in community structure of this species along the WAP. The analysis at small scale (Doumer Island, Palmer Archipelago) showed no differences in space and time in the microbiome M. acerata collected at sites around the island, sampled in three consecutive years (2016–2018). Our results highlight the existence of a low spatial and temporal variability in the microbiome of M. acerata, supporting previous suggestions based on limited studies on this and other Antarctic sponges.
How the digestive gland of Laternula elliptica reacts to nanoplastics and nanometals, both alone and together at global gene expression and oxygen consumption level R Rondon, F León, M González-Aravena, CA Cárdenas, E Bergami, ... Preprint , 2025 2025
Physiological and molecular effects of contaminants of emerging concerns of micro and nano-size in aquatic metazoans: overview and current gaps in Antarctic species R Rondon, CA Cárdenas, C Cosseau, E Bergami, T Balbi, I Corsi, ... Environmental Science and Pollution Research 31 (36), 48888-48907 , 2024 2024 Citations: 3
Transcriptomic responses of Antarctic clam Laternula elliptica to nanoparticles, at single and combined exposures reveal ecologically relevant biomarkers R Rondon, C Valdés, C Cosseau, E Bergami, CA Cárdenas, T Balbi, ... Ecotoxicology and Environmental Safety 280, 116523 , 2024 2024 Citations: 5
Exposure to nanoplastics and nanomaterials either single and combined affects the gill-associated microbiome of the Antarctic soft-shelled clam Laternula elliptica R Rondon, C Cosseau, E Bergami, CA Cárdenas, C Pérez-Toledo, ... Marine Environmental Research 198, 106539 , 2024 2024 Citations: 12
Marine litter pollution in a subantarctic beach of the Strait of Magellan, Punta Arenas, Chile CX Salinas, E Palacios, K Pozo, M Torres, L Rebolledo, V Gómez, ... Marine Pollution Bulletin 202, 116313 , 2024 2024 Citations: 8
Detection of plastic, cellulosic micro-fragments and microfibers in Laternula elliptica from King George Island (Maritime Antarctica) M González-Aravena, C Rotunno, CA Cárdenas, M Torres, SA Morley, ... Marine Pollution Bulletin 201, 116257 , 2024 2024 Citations: 23
Microbiome profile of the Antarctic clam Laternula elliptica M González-Aravena, G Perrois, A Font, CA Cárdenas, R Rondon Brazilian Journal of Microbiology 55 (1), 487-497 , 2024 2024 Citations: 3
Correction: Microbiome profile of the Antarctic clam Laternula elliptica M González-Aravena, G Perrois, A Font, CA Cárdenas, R Rondon Brazilian Journal of Microbiology, 1-1 , 2024 2024
Antarctic science in Chile: a bibliometric analysis of scientific productivity during the 2009–2019 period M González-Aravena, L Krüger, L Rebolledo, R Jaña, A Aguayo-Lobo, ... Antarctic Science 35 (1), 46-59 , 2023 2023 Citations: 7
Unravelling the suitability of Branchinecta gaini as a potential biomonitor of contaminants of emerging concern in the Antarctic Peninsula region M González-Aravena, G Iturra, A Font, CA Cárdenas, R Rondon, ... Antarctic Science 34 (4), 281-288 , 2022 2022 Citations: 9
Stability of the Microbiome of the Sponge Mycale ( Oxymycale ) acerata in the Western Antarctic Peninsula L Happel, R Rondon, A Font, M González-Aravena, CA Cárdenas Frontiers in Microbiology 13, 827863 , 2022 2022 Citations: 21
Low Transcriptomic Plasticity of Antarctic Giant Isopod Glyptonotus antarcticus Juveniles Exposed to Acute Thermal Stress M González-Aravena, R Rondon, A Font, CA Cárdenas, JY Toullec, ... Frontiers in Marine Science 8, 761866 , 2021 2021 Citations: 8
Effects of Climate Change Stressors on the Prokaryotic Communities of the Antarctic Sponge Isodictya kerguelenensis R Rondon, M González-Aravena, A Font, M Osorio, CA Cárdenas Frontiers in Ecology and Evolution 8, 262 , 2020 2020 Citations: 15
Temporal stability of bacterial communities in Antarctic sponges CA Cárdenas, A Font, G Steinert, R Rondon, M González-Aravena Frontiers in microbiology 10, 2699 , 2019 2019 Citations: 40
SmithKristinaBiochemBiophysThermalStressTriggers_SupportingInformation. zip J Vidal-Dupiol, NM Dheilly, R Rondon, KM Smith, M Freitag 2017
SmithKristinaBiochemBiophysThermalStressTriggers. pdf J Vidal-Dupiol, NM Dheilly, R Rondon, KM Smith, M Freitag 2017
Effects of a parental exposure to diuron on Pacific oyster spat methylome R Rondon, C Grunau, M Fallet, N Charlemagne, R Sussarellu, ... Environmental epigenetics 3 (1), dvx004 , 2017 2017 Citations: 74
Transcriptional changes in Crassostrea gigas oyster spat following a parental exposure to the herbicide diuron R Rondon, F Akcha, P Alonso, D Menard, J Rouxel, C Montagnani, ... Aquatic Toxicology 175, 47-55 , 2016 2016 Citations: 24
Effects of an environmentally relevant concentration of diuron on oyster genitors during gametogenesis: responses of early molecular and cellular markers and physiological impacts F Akcha, A Barranger, E Bachère, CH Berthelin, D Piquemal, P Alonso, ... Environmental Science and Pollution Research 23 (8), 8008-8020 , 2016 2016 Citations: 35
Thermal stress triggers broad Pocillopora damicornis transcriptomic remodeling, while Vibrio coralliilyticus infection induces a more targeted immuno-suppression response J Vidal-Dupiol, NM Dheilly, R Rondon, C Grunau, C Cosseau, KM Smith, ... PLoS One 9 (9), e107672 , 2014 2014 Citations: 96
MOST CITED SCHOLAR PUBLICATIONS
Thermal stress triggers broad Pocillopora damicornis transcriptomic remodeling, while Vibrio coralliilyticus infection induces a more targeted immuno-suppression response J Vidal-Dupiol, NM Dheilly, R Rondon, C Grunau, C Cosseau, KM Smith, ... PLoS One 9 (9), e107672 , 2014 2014 Citations: 96
Effects of a parental exposure to diuron on Pacific oyster spat methylome R Rondon, C Grunau, M Fallet, N Charlemagne, R Sussarellu, ... Environmental epigenetics 3 (1), dvx004 , 2017 2017 Citations: 74
Temporal stability of bacterial communities in Antarctic sponges CA Cárdenas, A Font, G Steinert, R Rondon, M González-Aravena Frontiers in microbiology 10, 2699 , 2019 2019 Citations: 40
Effects of an environmentally relevant concentration of diuron on oyster genitors during gametogenesis: responses of early molecular and cellular markers and physiological impacts F Akcha, A Barranger, E Bachère, CH Berthelin, D Piquemal, P Alonso, ... Environmental Science and Pollution Research 23 (8), 8008-8020 , 2016 2016 Citations: 35
Cytogenetic studies in three species of Lutjanus (Perciformes: Lutjanidae: Lutjaninae) from the Isla Margarita, Venezuela M Nirchio, R Rondón, C Oliveira, IA Ferreira, C Martins, J Pérez, L Sola, ... Neotropical Ichthyology 6, 101-108 , 2008 2008 Citations: 25
Transcriptional changes in Crassostrea gigas oyster spat following a parental exposure to the herbicide diuron R Rondon, F Akcha, P Alonso, D Menard, J Rouxel, C Montagnani, ... Aquatic Toxicology 175, 47-55 , 2016 2016 Citations: 24
Detection of plastic, cellulosic micro-fragments and microfibers in Laternula elliptica from King George Island (Maritime Antarctica) M González-Aravena, C Rotunno, CA Cárdenas, M Torres, SA Morley, ... Marine Pollution Bulletin 201, 116257 , 2024 2024 Citations: 23
Stability of the Microbiome of the Sponge Mycale ( Oxymycale ) acerata in the Western Antarctic Peninsula L Happel, R Rondon, A Font, M González-Aravena, CA Cárdenas Frontiers in Microbiology 13, 827863 , 2022 2022 Citations: 21
Effects of Climate Change Stressors on the Prokaryotic Communities of the Antarctic Sponge Isodictya kerguelenensis R Rondon, M González-Aravena, A Font, M Osorio, CA Cárdenas Frontiers in Ecology and Evolution 8, 262 , 2020 2020 Citations: 15
Cytogenetic characterization of Rhomboplites aurorubens and Ocyurus chrysurus, two monotypic genera of Lutjaninae from Cubagua Island, Venezuela, with a review of the … M Nirchio, C Oliveira, DC Ferreira, R Rondón, JE Pérez, AK Hett, ... Neotropical Ichthyology 7, 587-594 , 2009 2009 Citations: 13
Exposure to nanoplastics and nanomaterials either single and combined affects the gill-associated microbiome of the Antarctic soft-shelled clam Laternula elliptica R Rondon, C Cosseau, E Bergami, CA Cárdenas, C Pérez-Toledo, ... Marine Environmental Research 198, 106539 , 2024 2024 Citations: 12
Unravelling the suitability of Branchinecta gaini as a potential biomonitor of contaminants of emerging concern in the Antarctic Peninsula region M González-Aravena, G Iturra, A Font, CA Cárdenas, R Rondon, ... Antarctic Science 34 (4), 281-288 , 2022 2022 Citations: 9
Marine litter pollution in a subantarctic beach of the Strait of Magellan, Punta Arenas, Chile CX Salinas, E Palacios, K Pozo, M Torres, L Rebolledo, V Gómez, ... Marine Pollution Bulletin 202, 116313 , 2024 2024 Citations: 8
Low Transcriptomic Plasticity of Antarctic Giant Isopod Glyptonotus antarcticus Juveniles Exposed to Acute Thermal Stress M González-Aravena, R Rondon, A Font, CA Cárdenas, JY Toullec, ... Frontiers in Marine Science 8, 761866 , 2021 2021 Citations: 8
Antarctic science in Chile: a bibliometric analysis of scientific productivity during the 2009–2019 period M González-Aravena, L Krüger, L Rebolledo, R Jaña, A Aguayo-Lobo, ... Antarctic Science 35 (1), 46-59 , 2023 2023 Citations: 7
Transcriptomic responses of Antarctic clam Laternula elliptica to nanoparticles, at single and combined exposures reveal ecologically relevant biomarkers R Rondon, C Valdés, C Cosseau, E Bergami, CA Cárdenas, T Balbi, ... Ecotoxicology and Environmental Safety 280, 116523 , 2024 2024 Citations: 5
Physiological and molecular effects of contaminants of emerging concerns of micro and nano-size in aquatic metazoans: overview and current gaps in Antarctic species R Rondon, CA Cárdenas, C Cosseau, E Bergami, T Balbi, I Corsi, ... Environmental Science and Pollution Research 31 (36), 48888-48907 , 2024 2024 Citations: 3
Microbiome profile of the Antarctic clam Laternula elliptica M González-Aravena, G Perrois, A Font, CA Cárdenas, R Rondon Brazilian Journal of Microbiology 55 (1), 487-497 , 2024 2024 Citations: 3
ASPECTOS DE LA BIOLOGIA REPRODUCTIVA DE RANINOIDES LOUISIANENSIS, RATHBUN, 1933 (DECAPODA: RANINOIDEA: RANINIDAE) EN LA PLATAFORMA DELTANA VENEZOLANA R Rondón, Y Sprock, J Bolaños, C Lira Universidad de Oriente , 2012 2012 Citations: 3
How the digestive gland of Laternula elliptica reacts to nanoplastics and nanometals, both alone and together at global gene expression and oxygen consumption level R Rondon, F León, M González-Aravena, CA Cárdenas, E Bergami, ... Preprint , 2025 2025
