Article
Environmental Sciences
Bella Kiranya, Pramila Sahadevan, Sreekanth Giri Bhavan, Appukuttannair Biju Kumar, Rajeev Raghavan
Summary: This study presents, for the first time, data on the fish assemblage structure of ten temporarily closed estuaries (TCEs) along the south-western coast of India. The findings indicate significant differences in fish community structure among the TCEs based on species presence/absence, estuarine use, and feeding mode. The use of functional guilds and the Estuarine Fish Community Index (EFCI) successfully represent the ecological quality of TCEs, revealing functional similarities between fish assemblages despite taxonomic, physical, and chemical differences. The study also establishes a significant relationship between anthropogenic pressure, EFCI, and ecological quality of the TCEs using the Generalized Linear Model (GLM).
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Monique Nunes, Daniel A. Lemley, Janine B. Adams
Summary: This study investigated the benthic diatom community structure in two eutrophic, microtidal estuaries impacted by wastewater effluent discharges. The results showed that nutrient loading was the primary stressor, while salinity and river inflow were secondary stressors. The study highlights the importance of managing microtidal, low-inflow estuaries towards a natural dynamic state.
ESTUARIES AND COASTS
(2023)
Article
Environmental Sciences
Jayamini Bimali Koongolla, Lang Lin, Chang-Ping Yang, Yun-Feng Pan, Heng-Xiang Li, Shan Liu, Xiang-Rong Xu
Summary: In recent years, the widespread detection of microplastics in marine fish has raised concerns about potential risks to fish and human health. This study investigated the prevalence of microplastics in 271 marine fish collected from Beibu Gulf in the South China Sea. The results showed a microplastic occurrence rate of 93.7% and an average abundance of 1.02 items per individual. Different species, body sizes, living habitats, and feeding habits of marine fish exhibited significant variations in microplastic accumulation.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Marine & Freshwater Biology
Callum Edwards, Sarah McSweeney, Barbara J. Downes
Summary: Intermittently Open/Closed Estuaries (IOCE) have entrances that close during low river flow, leading to stratification of salinity, dissolved oxygen and water temperature. These stratification changes, caused by rapid water level change and loss of oxygenation during draining, often result in fish kills. However, there is a lack of studies on the statistical relationship between environmental variables and stratification, as well as quantification of stratification changes during draining period in multiple IOCE. Our research filled these gaps by analyzing the relationships between environmental variables and stratification, and measuring physicochemical depth profiles during estuary openings in Victoria, Australia.
ESTUARINE COASTAL AND SHELF SCIENCE
(2023)
Article
Environmental Sciences
Anthony Nzioka, Maria Jose Madeira, Lambros Kokokiris, Maren Ortiz-Zarrogoitia, Oihane Diaz de Cerio, Ibon Cancio
Summary: Over the last decade, xenoestrogenic effects have been observed in thicklip grey mullet populations in contaminated estuaries, resulting in intersex condition. A study on the genetic structure and connectivity of Chelon labrosus from Basque estuaries using microsatellite markers revealed a high level of genetic homogeneity and panmixia across the Atlantic and Mediterranean basins. This supports the hypothesis that individuals in estuaries with intersex conditions belong to the same genetic group as those in adjacent estuaries without xenoestrogenicity.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Milene Alexandra Guerreiro, Filipe Martinho, Joana Baptista, Filipe Costa, Miguel Angelo Pardal, Ana Ligia Primo
Summary: The study found seasonal variations in larval and juvenile fish communities in the Mondego estuary and its adjacent coastal area, influenced by environmental factors like temperature. Juvenile recruitment patterns for different species suggest a different nursery function between the estuary and coastal area for early life stages.
MARINE ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Abd Elnaby Kabeel, Paul Durai Leon Dharmadurai, Sathiyaseelan Vasanthaseelan, Ravishankar Sathyamurthy, Bharathwaaj Ramani, Athikesavan Muthu Manokar, Ali Chamkha
Summary: The experimental results showed that the use of a solar dryer significantly reduced the relative humidity inside the chamber, resulting in better drying efficiency. Physical examination confirmed that dried products from the modified solar dryer were free from insects and dust, with minimal color loss. Additionally, the thermal efficiency of the top tray and bottom tray in the solar dryer was higher compared to conventional open solar drying. Moreover, nearly 20.05% energy savings were achieved using the modified solar dryer.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Liya Vazhamattom Benjamin, R. Ratheesh Kumar, Shelton Padua, Sreekanth Giri Bhavan
Summary: Globally, small temporarily closed estuaries are often overlooked for fisheries assessment and management. However, these ecosystems are highly susceptible to anthropogenic pressures and may deteriorate without assessing their aquatic resources. This study investigated the fish diversity and guild structure of a temporarily closed tropical estuary on the western coast of India.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Biology
Chia-Hao Chang, Marie Mayer, Georgina Rivera-Ingraham, Eva Blondeau-Bidet, Wen-Yi Wu, Catherine Lorin-Nebel, Tsung-Han Lee
Summary: Temperature and salinity can impact the physiological responses of aquaculture species. European sea bass and milkfish, farmed in Europe and Southeast Asia respectively, showed increased hepatic antioxidant enzyme activity in response to temperature challenges combined with hypo-osmotic stress over a four-week period. Despite differences in expression profiles, both species exhibited enhanced antioxidant responses under the conditions of the study.
JOURNAL OF THERMAL BIOLOGY
(2021)
Review
Oceanography
Fabio Favoretto, Carlos Sanchez, Octavio Aburto-Oropeza
Summary: Marine communities globally are being affected by gradual warming and extreme heatwaves, leading to shifts in species' geographic range. This has impacts on economies, food supply, and health. This study focuses on the Gulf of California and reveals how a known ecological boundary shifted northward due to warming and more frequent heatwaves, resulting in the homogenization of environmental conditions and reconfiguration of rocky reefs communities.
PROGRESS IN OCEANOGRAPHY
(2022)
Article
Environmental Sciences
Evelyn Vetsis, Ioanna Kalantzi, Spiros A. Pergantis, Lambros Kokokiris, Ioannis Karakassis
Summary: A study investigated the concentrations of 27 metals and elements in the tissues of 28 demersal and pelagic marine fish species from the Eastern Mediterranean Sea. The research found that the majority of elements had higher accumulation concentrations in the gills, liver, and scales, while the muscle had the lowest. Pelagic fish tended to accumulate higher concentrations of elements compared to demersal fish.
MARINE POLLUTION BULLETIN
(2021)
Article
Psychology, Mathematical
Victor Ajuwon, Bruno F. Cruz, Paulo Carrico, Alex Kacelnik, Tiago Monteiro
Summary: Fish, as the most diverse vertebrate group, are of great interest for the study of behavior and its evolution. However, fish are underrepresented in psychological and cognitive research. GoFish is a fully automated platform for behavioral experiments in aquatic species, providing real-time video tracking, stimulus presentation, automatic feeding, and data acquisition control. It has the potential to become a widely used tool for complex behavioral experiments in aquatic species.
BEHAVIOR RESEARCH METHODS
(2023)
Article
Meteorology & Atmospheric Sciences
Ryan Eastman, Isabel L. McCoy, Robert Wood
Summary: The study explores the transitions in mesoscale cellular convective clouds on timescales ranging from 12 to 72 hours. It shows that different drivers act on different timescales prior to the transitions. Anomalously strong surface winds are associated with higher rain rates and subsequent increases, while warm sea surface temperatures and variables related to cloud top entrainment drying are associated with the closed-to-disorganized transition.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2022)
Article
Biotechnology & Applied Microbiology
Farzaneh Vardizadeh, Sedigheh Babaei, Mahmood Naseri, Mohammad-Taghi Golmakani
Summary: The study analyzed the structural and chemical characteristics of sulfated polysaccharides from three macroalgae species, with Sargassum boveanum and Padina distromatica showing higher yield, polyphenol content, and antioxidant potential compared to Caulerpa sertularioides. The sulfated polysaccharides demonstrated good antioxidant properties, making them suitable as oil stabilizers for fish oil.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2021)
Article
Biodiversity Conservation
Damien Olivier, Hector Reyes-Bonilla, Romeo Saldivar-Lucio
Summary: No-take marine reserves can help depleted fish populations recover, but the resilience level of the community may not fully recover. A 30-year study on a marine reserve in the Gulf of California showed that fish composition and ecological traits structure did recover after protection, but the recovery period saw changes in fish composition and decreased evenness and traits dispersion of the fish assemblages.
BIODIVERSITY AND CONSERVATION
(2022)
Article
Microbiology
Jingguang Cheng, Justine Jacquin, Pascal Conan, Mireille Pujo-Pay, Valerie Barbe, Matthieu George, Pascale Fabre, Stephane Bruzaud, Alexandra Ter Halle, Anne-Leila Meistertzheim, Jean-Francois Ghiglione
Summary: The thin film of life on plastics in the ocean, known as the plastisphere, has various effects on the fate and impacts of plastic in the marine environment. This study found that while plastic size and shape had some influence on plastisphere abundance, diversity, and activity, the composition of the plastic and the presence of a phytoplankton bloom had a greater impact.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Biodiversity Conservation
Manabu Kume, Edouard Lavergne, Hyojin Ahn, Yuki Terashima, Kohmei Kadowaki, Feng Ye, Satoshi Kameyama, Yoshiaki Kai, Yumi Henmi, Yoh Yamashita, Akihide Kasai
Summary: Estuarine and coastal ecosystems are important habitats for many fish species. Patterns of fish communities in these ecosystems are influenced by geographical factors such as latitude and water temperature, as well as human activities. Environmental DNA metabarcoding has provided insights into the structure of these communities, revealing the impact of red-listed and alien species, as well as human population density, on fish diversity. These findings can inform conservation efforts for estuarine and coastal ecosystems.
ECOLOGICAL INDICATORS
(2021)
Article
Multidisciplinary Sciences
Hendrikje Jorissen, Pierre E. Galand, Isabelle Bonnard, Sonora Meiling, Delphine Raviglione, Anne-Leila Meistertzheim, Laetitia Hedouin, Bernard Banaigs, Claude E. Payri, Maggy M. Nugues
Summary: This study investigated the settlement preferences of different CCA species for Acropora cytherea and found that a CCA species with a unique microbiome and metabolome significantly promoted the settlement of Acropora cytherea on its surface, with settlement preferences related to the source habitat of the CCA.
SCIENTIFIC REPORTS
(2021)
Article
Microbiology
Justine Jacquin, Nolwenn Callac, Jingguang Cheng, Carolane Giraud, Yonko Gorand, Clement Denoual, Mireille Pujo-Pay, Pascal Conan, Anne-Leila Meistertzheim, Valerie Barbe, Stephane Bruzaud, Jean-Francois Ghiglione
Summary: The European Parliament has approved a new law banning single-use plastic items for 2021, pushing towards a bioeconomy transition. Research has identified various biodegradable materials that could substitute the banned products, potentially degrading under marine conditions.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Biodiversity Conservation
Edouard Lavergne, Manabu Kume, Hyojin Ahn, Yumi Henmi, Yuki Terashima, Feng Ye, Satoshi Kameyama, Yoshiaki Kai, Kohmei Kadowaki, Shiho Kobayashi, Yoh Yamashita, Akihide Kasai
Summary: Estuaries are facing threats like biodiversity loss and unsustainable fisheries. This study in Japan found that watershed land-use factors, such as forest cover, play a significant role in determining the richness of vulnerable fish species in estuaries. Conservation efforts should focus on proper forest management and land-use practices to protect threatened fish species and coastal ecosystems.
CONSERVATION BIOLOGY
(2022)
Article
Microbiology
Charlene Odobel, Claire Dussud, Lena Philip, Gabrielle Derippe, Marion Lauters, Boris Eyheraguibel, Gaetan Burgaud, Alexandra Ter Halle, Anne-Leila Meistertzheim, Stephane Bruzaud, Valerie Barbe, Jean-Francois Ghiglione
Summary: This study found congruent signs of biodegradation for some bio-based and fossil-based materials after one month of immersion in seawater, with continuous growth of biofilm observed on PHBV, PCL, and artificially aged OXO over the course of 7 months. The study also identified potential operational taxonomic units (OTUs) involved in the biodegradation of these polymers under natural seawater conditions, offering new insights into the biodegradability of polymers in seawater environments.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Marine & Freshwater Biology
Justus O. Omweri, Keita W. Suzuki, Shouji Houki, Edouard Lavergne, Hiroshi Inoue, Hisashi Yokoyama, Yoh Yamashita
Summary: Neomysis awatschensis primarily feeds on benthic diatoms, but can also flexibly utilize phytoplankton in response to environmental conditions. Diel vertical migration may have occurred in 2015 while in 2019 it remained close to the bottom.
PLANKTON & BENTHOS RESEARCH
(2021)
Article
Environmental Sciences
Jennifer Laurent, Edouard Lavergne, Jerome Couteau, Stephane Le Floch, Baghdad Ouddane, Jerome Cachot, Blandine Davail, Christelle Clerandeau, Simon Devin, Cedric Fisson, Alain Devaux, Rachid Amara, Mamadou Diop, Vianney Pichereau, Jean Laroche
Summary: The objective of this study was to examine the impact of multistress (diffuse pollution and warming waters) on fish populations in estuaries. The results showed that rising winter water temperatures in the Eastern English Channel affected the timing of reproduction in flounders, leading to a delay in maturation and possibly spawning. Flounders in the heavily polluted Seine estuary exhibited higher levels of liver histopathology and neurotoxicity compared to those in the moderately contaminated Canche estuary. Additionally, higher levels of gill lipid peroxidation, liver EROD activity, and potential impairment in mitochondrial metabolism were observed in the Seine flounder population. The study also highlighted the potential role of two membrane lipids in resistance to oxidative stress in both estuaries. Furthermore, the researchers suggested that the future of the Seine flounder population, as well as other flounder populations along the French Coast of the Eastern English Channel, could be seriously impacted by higher winter temperatures and chemical contamination.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Multidisciplinary Sciences
Uwe Zajonz, Edouard Lavergne, Sergey Bogorodsky, Friedhelm Krupp
Summary: The study focuses on the distributional biogeography of coastal fish fauna in the Socotra Archipelago and its relation to ichthyogeographic and ecoregional concepts, highlighting close affinities to a putative ecoregion in the eastern Gulf of Aden and the Arabian Sea coast of Oman. It suggests that the Socotra Archipelago should be considered a distinct ecoregion due to its unique marine diversity levels.
Article
Oceanography
M. Chemel, A. L. Meistertzheim, V. Mouchi, F. Lartaud
Summary: In this study, the reproductive biology of Lophelia pertusa and Madrepora oculata in the Mediterranean Sea was investigated for the first time using histological techniques. The results showed that Lophelia pertusa has a seasonal spawning in autumn to early winter, while Madrepora oculata has continuous reproduction. The difference in reproductive features between the two species is of paramount importance for conservation strategies.
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2023)
Article
Environmental Sciences
Jingguang Cheng, Anne-Leila Meistertzheim, David Leistenschneider, Lena Philip, Justine Jacquin, Marie-Line Escande, Valerie Barbe, Alexandra ter Halle, Leila Chapron, Franck Lartaud, Stephanie Bertrand, Hector Escriva, Jean-Francois Ghiglione
Summary: This study evaluates the effects of weathered polystyrene microplastic on a filter-feeder amphioxus under starvation conditions via its exposure to the microplastics previously deployed in the natural seawater. The results show specific alterations in gene expression associated with oxidative stresses and immune systems, as well as the potential transfer of bacterial taxa from the microplastic to the amphioxus gut microbiota. Moreover, the microorganisms colonizing plastics could serve as a nutrient source for the filter-feeder, leading to changes in body shape.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Pascal Conan, Lena Philip, Eva Ortega-Retuerta, Charlene Odobel, Clelia Duran, Caroline Pandin, Carolane Giraud, Anne-Leila Meistertzheim, Valerie Barbe, Alexandra Ter Hall, Mireille Pujo-Pay, Jean-Francois Ghiglione
Summary: We studied the primary production and bacterial activities on microplastics and seawater in the Northwestern Mediterranean Sea over two consecutive spring periods. The nutrient conditions played a crucial role in shaping microbial activities on plastics, and high primary production on plastics could support heterotrophic activities. Additionally, we proposed that microbial activity on plastics may influence the microbial community in the surrounding seawater.
ENVIRONMENTAL POLLUTION
(2022)
Article
Polymer Science
Jingguang Cheng, Boris Eyheraguibel, Justine Jacquin, Mireille Pujo-Pay, Pascal Conan, Valerie Barbe, Julia Hoypierres, Gaelle Deligey, Alexandra Ter Halle, Stephane Bruzaud, Jean-Francois Ghiglione, Anne-Leila Meistertzheim
Summary: Plastic microbeads have been produced in large quantities for cosmetics and personal care products, causing pollution in the oceans. This study investigated the biodegradability of different polymers and found that PHBV, PCL, rice, and apricot microbeads were biodegradable under seawater conditions, while PE, PMMA, and PLA microbeads were not. The results suggest that biodegradable substitutes could be used to reduce pollution by microplastics in the oceans.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Fisheries
Hiroshi Inoue, Shingo Watari, Hideki Sawada, Edouard Lavergne, Yoh Yamashita
Summary: This study assessed the impact of regime shifts on fisheries-supporting ecosystems in the coastal area of Kyoto Prefecture, the Sea of Japan. Ecopath models were constructed for cold (1985) and warm (2013) regime periods, and changes in ecosystem structure and the impact of fisheries were compared using multiple indicators. The decline of Japanese sardine and the increase of Spanish mackerel were the major changes in catches between 1985 and 2013. The results suggested that the fishery structure dominated by set nets in 2013 contributed to a more sustainable fishery compared to the structure dominated by purse seines and set nets in 1985.
Article
Environmental Sciences
Jean-Francois Ghiglione, Valerie Barbe, Stephane Bruzaud, Gatan Burgaud, Jerome Cachot, Boris Eyheraguibel, Franck Lartaud, Wolfgang Ludwig, Anne-Leila Meistertzheim, Ika Paul-Pont, Stephane Pesant, Alexandra ter Halle, Odon Thiebeauld
Summary: The Tara Microplastics mission was conducted for 7 months to investigate plastic pollution along nine major rivers in Europe. Various biophysicochemical parameters were measured to assess the concentration and composition of microplastics, as well as the richness and diversity of microorganisms in the surrounding waters. Additionally, macroplastic and microplastic concentrations were determined on river banks and beaches. The mission aimed to achieve ambitious goals such as comparing plastic pollution among European rivers, predicting their evolution, and studying the toxicological effects of plastics on aquatic life.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)