-
Predator-prey interactions in a coastal setting: Linking crab feeding rates to small scale distribution of clams Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-12 Pedro A. Quijón
A coastal predator-prey system, juvenile green crabs () preying upon juvenile hard clams (), was used to explore the link between crab predation rates and clam density and small-scale distribution patterns. The channel working area of a racetrack flume was adapted to form a sedimentary arena in a flowing seawater system (5 cm s) to assess crab predation rates in relation to clam density and distribution
-
Diversity and distribution analysis of eukaryotic communities in the Xiangshan Bay, East China sea by metabarcoding approach Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-12 Shuangqing Li, Ningjian Luo, Chuang Li, Shuoqian Mao, Hailong Huang
Eukaryotic communities play an important role in the coastal ecosystem of Xiangshan Bay, a narrow semi-closed bay famous for fisheries and marine farming. However, information on the diversity and composition of eukaryotic communities in Xiangshan Bay remains unclear. In this study, the metabarcoding approach was utilized to comprehensively investigate the eukaryotic plankton community structure and
-
Biological soil crust elicits microbial community and extracellular polymeric substances restructuring to reduce the soil erosion on tropical island, South China Sea Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-12 Lin Wang, Jie Li, Si Zhang, Yadong Huang, Zhiyuan Ouyang, Zhimao Mai
Soil erosion stands as the preeminent environmental concern globally, attaining heightened significance, particularly within islands where land resources prove notably scarce. Biological soil crusts, referred to as biocrusts, assume a pivotal ecological role in soil conservation. Notably, they augment the horizontal stability of the substrate through the exudation of microbial extracellular polymeric
-
Fishing damage to cloud sponges may lead to losses in associated fish communities in Pacific Canada Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-12 Fiona T. Francis, Lily Burke, Jeff Marliave, Jessica Schultz, Laura Borden, Amanda Weltman, Anya Dunham
Glass sponge gardens are important biogenic habitats that support fish communities in Pacific Canada. However, glass sponges (class Hexactinellida) are delicate and susceptible to damage from fishing gear such as downriggers. In this study we document changes in a fish community before –and after damage from a presumed fishing event that resulted in a reduction of 58.9% of the available sponge habitat
-
Machine learning-based prediction of seasonal hypoxia in eutrophic estuary using capacitive potentiometric sensor Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-11 Seongsik Park, Kyunghoi Kim, Tadashi Hibino, Kyeongmin Kim
A hypoxia occurred in eutrophic estuary was predicted using long short-term memory (LSTM) model with prediction time steps (PTSs) of 0, 1, 12, and 24 h. A capacitive potential (CP), which provides quantitative information on dissolved oxygen (DO) concentration, was used as a predictor along with precipitation, tide level, salinity, and water temperature. First, annual changes in DO concentration were
-
Sink-source connectivity for restocking of Pinna nobilis in the western Mediterranean Sea Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-11 A. Feria-Rodríguez, D. March, B. Mourre, I.E. Hendriks, M. Vázquez-Luis
The critically endangered endemic bivalve from the Mediterranean Sea suffered a sudden population decline after a mass mortality event in early autumn 2016. Conservation efforts aimed at preventing extinction included safeguarding resistant individuals and implementing a breeding plan to contribute to the repopulation of the species. This study utilized a model combining Lagrangian dispersion and connectivity
-
Quantum of fear: Herbivore grazing rates not affected by reef shark presence Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-11 Sterling B. Tebbett, Sasha I. Faul, David R. Bellwood
Grazing by nominally herbivorous fishes is widely recognised as a critical ecosystem function on coral reefs. However, several studies have suggested that herbivory is reduced in the presence of predators, especially sharks. Nevertheless, the effects of shark presence on grazing, under natural settings, remains poorly resolved. Using ∼200 h of video footage, we quantify the extent of direct disturbance
-
Competition between ocean thermal structure and tropical cyclone characteristics modulates ocean environmental responses in the Yellow and Bohai Seas Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-10 Xiuting Wang, Jiagen Li, Liang Sun, Mengyuan Xu, Haihua Liu, Rui Liu
To study the environmental responses of tropical cyclones (TCs) in continental shelf regions, TCs passing over the Yellow Sea and Bohai Sea (YBS) during 2002–2020 were investigated, with a special focus on how competition between ocean thermal structure and TC characteristics modulates ocean surface changes. The spatial distributions of the climatic mixed layer depth (MLD), accumulated wind forcing
-
Physiological and transcriptomic responses of Aurelia coerulea polyps to acidified seawater conditions Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-08 Tingting Sun, Saijun Peng, Fangzheng Tu, Pengzhen Xu, Lijing Ye, Jianmin Zhao, Zhijun Dong
Scyphozoan jellyfish, known for their evolutionary position and ecological significance, are thought to exhibit relatively notable resilience to ocean acidification. However, knowledge regarding the molecular mechanisms underlying the scyphozoan jellyfish response to acidified seawater conditions is currently lacking. In this study, two independent experiments were conducted to determine the physiological
-
Gills de novo assembly reveals oxidative stress, unfolded protein, and immune response on red cusk-eel (Genypterus chilensis) under thermal stress Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-08 Phillip Dettleff, Carla Toloza, Marcia Fuentes, Jorge Aedo, Rodrigo Zuloaga, Juan Manuel Estrada, Alfredo Molina, Juan Antonio Valdés
The heat waves on the South Pacific coast could lead to thermal stress in native fish. The red cusk-eel () is relevant for Chilean artisanal fisheries and aquaculture diversification. This study examined the effect of high-temperature stress in the gills of in control (14 °C) and high-temperature stress (19 °C) conditions. High-temperature stress induces a significant increase in gills cortisol levels
-
Effects of dissolved oxygen changes in the benthic environment on phosphorus flux at the sediment-water interface in a coastal brackish lake Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-08 Yong-Hoon Jeong, Yong-Ho Choi, Dong-Heui Kwak
In semi-enclosed coastal brackish lakes, changes in dissolved oxygen in the bottom layer due to salinity stratification can affect the flux of phosphorus (P) at the sediment-water interface, resulting in short- and long-term water quality fluctuations in the water column. In this study, the physicochemical properties of the water layers and sediments at five sites in Saemangeum Lake were analyzed in
-
Assessment of the impact of microplastic ingestion in striped red mullets from an Eastern Mediterranean coastal area (Zakynthos Island, Ionian Sea) Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-06 Danae Patsiou, Nikoletta Digka, Matteo Galli, Matteo Baini, Maria Cristina Fossi, Catherine Tsangaris
Monitoring microplastics (MPs) in the marine environment is an ongoing process, and our understanding of their impact on marine organisms is limited. The present study evaluates the effects of ingested MPs on the marine MP pollution bioindicator fish species . The study follows a three-fold approach to assess the impact of MPs on marine organisms by investigating: 1) the ingestion of MPs, 2) the bioaccumulation
-
A matter of choice: Understanding the interactions between epiphytic foraminifera and their seagrass host Halophila stipulacea Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-06 Jenipher Masawa, Gidon Winters, Moran Kaminer, Amir Szitenberg, Michal Gruntman, Sarit Ashckenazi-Polivoda
In sub/tropical waters, benthic foraminifera are among the most abundant epiphytic organisms inhabiting seagrass meadows. This study explored the nature of the association between foraminifera and the tropical seagrass species , aiming to determine whether these interactions are facilitative or random. For this, we performed a "choice" experiment, where foraminifera could colonize plants or plastic
-
Responses of soil seed bank and its above-ground vegetation to various reclamation patterns Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-06 Min Chen, Sarfraz Hussain, Yuhong Liu, Ghulam Mustafa, Bingtao Hu, Zhirui Qin, Xue Wang
Coastal land reclamation has become a primary strategy for alleviating conflicts between human development and land resource utilization. However, anthropogenic activities associated with land reclamation inevitably result in significant changes to coastal wetland ecosystems. Previous studies have mainly focused on the ecological consequences of land reclamation on above-ground vegetation, while overlooking
-
Reduction of small-prey capture rate and collective predation in the bleached sea anemone Exaiptasiadiaphana Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-06 Chiara Gregorin, Marica Di Vito, Camilla Roveta, Torcuato Pulido Mantas, Stefano Gridelli, Federico Domenichelli, Lucrezia Cilenti, Tomás Vega Fernández, Stefania Puce, Luigi Musco
Cnidarians may dominate benthic communities, as in the case of coral reefs that foster biodiversity and provide important ecosystem services. Polyps may feed by predating mesozooplantkon and large motile prey, but many species further obtain autotrophic nutrients from photosymbiosis. Anthropogenic disturbance, such as the rise of seawater temperature and turbidity, can lead to the loss of symbionts
-
Effects of ocean acidification and polystyrene microplastics on the oysters Crassostrea gigas: An integrated biomarker and metabolomic approach Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-05 Yunchao Du, Jia Teng, Jianmin Zhao, Jingying Ren, Hengyuan Ma, Tianyu Zhang, Bin Xia, Shan Sun, Qing Wang
The adverse impacts of microplastics (MPs) or ocean acidification (OA) on mollusks have been widely reported, however, little is known about their combined effects on mollusks. The oysters were exposed to two sizes of polystyrene MPs with 1 × 10 particles/L (small polystyrene MPs (SPS-MPs): 6 μm, large polystyrene MPs (LPS-MPs): 50–60 μm) at two pH levels (7.7 and 8.1) for 14 days. The antagonistic
-
Ingestion and depuration of polyester microfibers by Crassostrea gasar (Adanson, 1757) Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-04 Layse Rodrigues do Rozario Teixeira Lins, Miguel Saldaña-Serrano, Carlos Henrique Araújo de Miranda Gomes, Mariana Rangel Pilotto, Luiz Otávio de Barros Vilas Bôas, Deivid Medeiros da Costa, Camila Lisarb Velasquez Bastolla, Daína Lima, Marilia Tedesco, Tamiris Henrique Ferreira, Pietro Sinigaglia Lunelli, Antonio Pedro Novaes de Oliveira, Afonso Celso Dias Bainy, Diego José Nogueira
The study aimed to obtain environmentally relevant microfibers (MFs) from polyester fabric and assess their impact on the oyster . MFs were obtained by grinding the fabric, and their accumulation in oysters gills and digestive glands was analyzed after exposure to 0.5 mg/L for 2 and 24 h. Additionally, a 48 h depuration was conducted on the oysters exposed for 24 h. Sublethal effects were assessed
-
Assessment of metal and organic pollutants in combination with stable isotope analysis in tunas from the Gulf of Cadiz (east Atlantic) Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-03 Marina G. Pintado-Herrera, José A. López-López, Pablo A. Lara-Martín, Antonio Medina, Irene Cadenas, Sara Giansiracusa, Carmen Corada-Fernández, José L. Varela
Bioaccumulation patterns of heavy metals (Pb, Cd, Cr, Ni, Fe and Cu) and organic (priority and emerging) pollutants, in combination with stable isotope analysis (SIA), were assessed in muscle and liver of three tuna species from the Gulf of Cadiz (Atlantic bluefin tuna, ; Atlantic bonito, , and skipjack tuna, ). SIA and contaminant (heavy metal and organic) profiles separately discriminated between
-
Microbial community structure in a constructed wetland based on a recirculating aquaculture system: Exploring spatio-temporal variations and assembly mechanisms Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-02 Wenjie Tian, Qiufen Li, Zijun Luo, Chao Wu, Bo Sun, Danting Zhao, Saisai Chi, Zhengguo Cui, Ailing Xu, Zhiwen Song
The diversity, composition and performance of microbial communities within constructed wetlands (CW) were markedly influenced by spatio-temporal variations. A pilot-scale integrated vertical-flow constructed wetland (IVCW) as the biological purification unit within a recirculating aquaculture system (RAS) was established and monitored in this study. The investigation aimed to elucidate the responses
-
Long-term response of interspecific competition among three typical bloom-forming species to changes in phosphorus and temperature Mar. Environ. Res. (IF 3.3) Pub Date : 2024-03-01 Anglu Shen, Hongyue Liu, Yuanli Zhu, Jiangning Zeng
Phosphorus and temperature play an important role in the succession of diatom–dinoflagellate blooms. However, there is little long-term research on interspecific competition based on phosphorus source and temperature. Here, interspecific competition among , and was studied using trialgal laboratory co-cultures under different phosphorus and temperature conditions. These results suggest that and alternated
-
Application of MicroResp™ for quick and easy detection of plastic degradation by marine bacterial isolates Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-28 Cristina Mitsumori, Shun Tsuboi, Mamiko Shimamura, Takamasa Miura
Microplastic debris in the marine environment is a global problem. Biodegradable polymers are being developed as alternatives to petroleum-based plastics, and quick and easy methods for screening for bacterial strains that can degrade such polymers are needed. As a screening method, the clear zone method has been widely used but has technical difficulties such as plate preparation and interpretation
-
The tolerance of two marine diatoms to diurnal pH fluctuation under dynamic light condition and ocean acidification scenario Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-28 Yu Shang, Jie He, Jingmin Qiu, Siyu Hu, Xin Wang, Tianzhi Zhang, Weili Wang, Xiaoyue Yuan, Juntian Xu, Futian Li
Coastal waters undergo dynamic changes in seawater carbonate chemistry due to natural and anthropogenic factors. Despite this, our current understanding of how coastal phytoplankton respond to fluctuating pH is limited. In the present study, we investigated the physiological responses of two coastal diatoms and to seawater acidification and diurnally fluctuating pH under natural solar irradiance. Seawater
-
Proxies to detect hotspots of invertebrate biodiversity on rhodolith beds across the Southwestern Atlantic Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-28 Jaqueline Barreto Lino, Ivan Rodrigo Abrão Laurino, Pedro Augusto dos Santos Longo, Cinthya Simone Gomes Santos, Fabio dos Santos Motta, Ronaldo B. Francini-Filho, Guilherme Henrique Pereira-Filho
Rhodolith beds are known worldwide to host high biodiversity to several taxa. Despite their importance, few ecological data explored the influence of rhodolith features and environmental variables on associated biodiversity, a gap that has been hampering the mapping of diversity hotspots and priority areas for conservation. In this study, we investigated large-scale spatial variations of rhodolith
-
Hazards of microplastics exposure to liver function in fishes: A systematic review and meta-analysis Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-27 Yu Sun, Qingfang Deng, Qiurong Zhang, Xin Zhou, Ruhai Chen, Siyu Li, Qing Wu, Huaguo Chen
Microplastics (5 mm - 1 μm) have become one of the major pollutants in the environment. Numerous studies have shown that microplastics can have negative impacts on aquatic organisms, affecting their liver function levels. However, the extent of these effects and their potential toxicological mechanisms are largely unknown. In this study, a meta-analysis and systematic review were conducted to assess
-
The pharmaceutical triclosan induced oxidative stress and physiological disorder in marine organism and nanoparticles as a potential mitigating tool Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-27 Imen Bouzidi, Anis Fkiri, Wiem Saidani, Abdelhafidh Khazri, Amine Mezni, Karine Mougin, Hamouda Beyrem, Badreddine Sellami
Environmental research plays a crucial role in formulating novel approaches to pollution management and preservation of biodiversity. This study aims to assess the potential harm of pharmaceutical triclosan (TCS) to non-target aquatic organism, the mussel . Furthermore, our study investigates the potential effectiveness of TiO and ZnO nanomaterials (TiO NPs and ZnO NPs) in degrading TCS. To ascertain
-
Quantifying larval dispersal portfolio in seabass nurseries using otolith chemical signatures Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-27 Nils Teichert, Hélène Tabouret, Anne Lizé, Françoise Daverat, Anthony Acou, Thomas Trancart, Laure-Sarah Virag, Christophe Pécheyran, Eric Feunteun, Alexandre Carpentier
The temporal asynchronies in larvae production from different spawning areas are fundamental components for ensuring stability and resilience of marine metapopulations. Such a concept, named portfolio effect, supposes that diversifying larval dispersal histories should minimize the risk of recruitment failure by increasing the probability that at least some larvae successfully settle in nursery. Here
-
Inorganic osmolytes and enzymatic biomarkers from the manabi oyster (Crassostrea cf. corteziensis) in response to saline stress Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-27 Karla Falconí, Édgar Zapata-Vívenes, César Lodeiros
Abrupt drops in salinity that occur in tropical estuaries during the equatorial rainy season led to hyposaline conditions which may reduce the populational density of oysters. To assess the effect of saline stress on physiological and metabolic responses of the Manabi oyster ( cf. ) was exposed to 35, 30, 20,10 and 5‰ concentrations during 96 h. Inorganic osmolytes, pH, salinity, haemocyanin and protein
-
Transient species driving ecosystem multifunctionality: Insights from competitive interactions between rocky intertidal mussels Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-27 Claudia Betancourtt, Alexis M. Catalán, Diego F. Morales-Torres, Daniela N. Lopez, Valentina Escares-Aguilera, Luis P. Salas-Yanquin, Joseline A. Büchner-Miranda, Oscar R. Chaparro, Jorge Nimptsch, Bernardo R. Broitman, Nelson Valdivia
Anthropogenic biodiversity loss poses a significant threat to ecosystem functioning worldwide. Numerically dominant and locally rare (i.e., transient) species are key components of biodiversity, but their contribution to multiple ecosystem functions (i.e., multifunctionality) has been seldomly assessed in marine ecosystems. To fill this gap, here we analyze the effects of a dominant and a transient
-
Seasonally varying biogeochemical regime around the coral habitats off central west coast of India Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-27 Gayatri Shirodkar, Hema Uskaikar, S.W.A. Naqvi, Anil Pratihary, Afreen Hussain, Damodar M. Shenoy, Manguesh Gauns, B. Manikandan, Saiprasad Manjrekar, Anagha Patil
The Western Indian Continental Shelf (WICS) experiences upwelling during the Southwest Monsoon (SWM), leading to deoxygenation and acidification of subsurface waters. The region has patchy growth of corals, e.g. in the Grande Island and Angria Bank. Measurements made during the late SWM of 2022 reveal that the shelf waters around the Grande Island were subject to varying environmental conditions, viz
-
A preliminary study on benthic nutrient exchange across sediment-water interfaces in a shallow marine protected area of the Northwestern Arabian Gulf Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-24 Amit Sarkar, Turki Al-Said, Syed Wajih Ahmad Naqvi, Ayaz Ahmed, Loreta Fernandes, Rakhesh Madhusoodhanan, Fathima Thuslim, Takahiro Yamamoto, Faiza Al-Yamani
Sedimentary processes are expected to play a crucial role in macronutrient cycling of the shallow Arabian Gulf. To investigate this aspect, sediment cores were collected from the shallow intertidal and subtidal expanses of the first Marine Protected Area (MPA) of Kuwait in the Northwestern Arabian Gulf (NAG). Porewater nutrient profiling and whole core incubation experiments were conducted to measure
-
A reciprocal transplant approach to predation in fouling communities found in natural and artificial habitats Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-23 Dean S. Janiak, David R. Branson
Human influence along the coastline is a significant threat to biodiversity and includes the alteration or replacement of natural habitat with artificial structures. Infrastructure such as docks and marinas are common throughout the world and typically have negative impacts on coastal flora and fauna. Impacts include the reduction of native biodiversity, the increase of introduced species, and the
-
Comprehensive insights into the differences of fungal communities at taxonomic and functional levels in stony coral Acropora intermedia under a natural bleaching event Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-22 Xinye Chen, Xinyu Liao, Shihan Chang, Zihui Chen, Qiaoting Yang, Jingjing Peng, Weihui Hu, Xiaoyong Zhang
Previous studies have reported the correlations between bacterial communities and coral bleaching, but the knowledge of fungal roles in coral bleaching is still limited. In this study, the taxonomic and functional diversities of fungi in unbleached, partly bleached and bleached stony coral were investigated through the ITS-rRNA gene next-generation sequencing. An unexpected diversity of successfully
-
Molecular and behavioural responses of the mussel Mytilus edulis exposed to a marine heatwave Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-22 Margot Grimmelpont, Laura Payton, Christel Lefrançois, Damien Tran
Marine heatwaves (MHW) threaten marine organisms and tend to increase in frequency and intensity. We exposed the blue mussel to a MHW lasting 23 days, including two 10-d periods of thermal intensity increase of +5 °C (20 °C–25 °C) interspersed by 1 day back to 20 °C, followed by a 4-d recovery period. We investigated behaviour responses of mussels and gene expression changes relative to the circadian
-
Application of confocal microscopy and flow cytometry to identify physiological responses of Prorocentrum micans to the herbicide glyphosate Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-20 Ekaterina Solomonova, Natalia Shoman, Arkady Akimov, Olga Rylkova, Yakov Meger
The physiological response of the dinoflagellate to the effect of the herbicide glyphosate at a concentration of 25–200 μg L was evaluated. It has been shown that is able to grow due to the consumption of dissolved organic phosphorus formed as a result of the mineralization of glyphosate by bacteria. The addition of glyphosate to the medium inhibits the photosynthetic activity of cells; there is a
-
Assessment of heavy metal accumulation and potential risks in surface sediment of estuary area: A case study of Dagu river Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-19 Xiran Han, Hao Wu, Qingyu Li, Wenrui Cai, Shuya Hu
Soil/sediment samples of four different land types were collected from aquaculture land, farmland, industrial land and river bottom sediment in the estuary area of Dagu River. The contents of Cr, Cu, Zn, As, Cd and Pb in 0–30 cm inner surface samples were detected, and the distribution characteristics of heavy metal content in surface soil/sediment of different land use types in the estuary area were
-
Environmental DNA metabarcoding reveals the effects of seafloor litter and trawling on marine biodiversity Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-19 Alice Sbrana, Giulia Maiello, Maria Flavia Gravina, Davide Cicala, Simone Galli, Matteo Stefani, Tommaso Russo
Environmental DNA (eDNA) techniques are emerging as promising tools for monitoring marine communities. However, they have not been applied to study the integrated effects of anthropogenic pressures on marine biodiversity. This study examined the relationships between demersal community species composition, key environmental features, and anthropogenic impacts such as fishing effort and seafloor litter
-
Assembly dynamics of eukaryotic plankton and bacterioplankton in the Yangtze River estuary: A hybrid community perspective Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-19 Tong Wang, Ruiqing Liu, Guolin Huang, Xin Tian, Yaru Zhang, Meilin He, Changhai Wang
Estuaries, acting as transitional habitats receiving species introductions from both freshwater and marine sources, undergo significant impacts from global climate changes. Planktonic microorganisms contribute significantly to estuarine biodiversity and ecological stability. These microorganisms primarily fall into three groups: eukaryotic plankton, particle-associated bacteria, and free-living bacteria
-
Assessment of microplastic contamination in commercially available fishes Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-16 Amrutha V M, Aswin Kuttykattil, Itami Toshiaki, Raja Sudhakaran
Plastics have widespread applications for human use, but their disposal poses a significant threat to living organisms and these plastics end up in the marine environment. They will be fragmented into small pieces as a result of ultraviolet exposure, climatic changes, and temperature changes; Microplastics (MPs) are plastics that are less than 5mm in size. The level of MP (Microplastic) pollution in
-
Towards the understanding of the uptake and depuration of microplastic in the ragworm Hediste diversicolor: Field and laboratory study Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-16 Messika Revel, Carla Freund, Mohammed Mouloud, Hanane Perrein-Ettajani, Isabelle Métais, Mélanie Bruneau, Nadiia Yakovenko, Romuald Le roux, Timothy Caley, William Alogbleto, Valentin Verrier, Catherine Dreanno, Maria El Rakwe, Amélie Châtel
An important number of studies have evaluated the presence of microplastics, particles with a size below 5 mm, in aquatic organisms. Studies have shown that these fragments are widely present in the marine environment, but research on the estuarine ecosystem is still scarce. In this study, two different approaches were used to evaluate the presence and ingestion of plastic particles in the ragworm
-
Trophic ecology of sympatric sea turtles in the tropical Atlantic coast of Brazil Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-15 Moises F. Bezerra, Cesar A. Barrios-Rodriguez, Carlos E. Rezende, Melania C. López-Castro, Luiz D. Lacerda
The Tropical Atlantic coast of Brazil is a hotspot area for multiple sea turtle species at all life stages. The multiple nearshore reefs and beaches, oceanic islands, and the only atoll in the south Atlantic Ocean, are suitable for year-round foraging, migration corridors, and nesting activities of five sea turtle species. Still, relatively few studies have assessed trophic niche among sympatric sea
-
Prostaglandin pathway activation in the diatom Skeletonema marinoi under grazer pressure Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-14 Roberta Barbarinaldi, Federica Di Costanzo, Ida Orefice, Giovanna Romano, Ylenia Carotenuto, Valeria Di Dato
Prostaglandins (Pgs) are eicosanoid lipid mediators detected in all vertebrates, in some marine invertebrates, macroalgae and in diatoms, a class of eukaryotic microalgae composing the phytoplankton. The enzymes involved in the Pgs pathway were found to be differentially expressed in two strains of the diatom , named FE7 and FE60, already known to produce different levels of oxylipins, a class of secondary
-
Atlantic bonito (Sarda) genomic analysis reveals population differentiation across Northeast Atlantic and mediterranean locations: Implications for fishery management Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-13 Judith Ollé-Vilanova, Ghailen Hajjej, David Macias, Sámar Saber, Pedro G. Lino, Rubén Muñoz-Lechuga, Sid'Ahmed Baibbat, Fambaye Ngom Sow, N'guessan Constance Diaha, Rosa M. Araguas, Núria Sanz, Jordi Vinas
The Atlantic bonito (, family Scombridae) is a pelagic species and one of the most exploited small tuna species. Despite its economic importance, biological information is scarce with no associated management directives. In this study, using a population genomic approach resulted in a lack of panmixia of two genetic pools with different effective population sizes (east central-tropical Atlantic and
-
Assessing sandy beach macrofaunal assemblages across geographically diverse morphodynamic environments Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-13 M.C. Risoli, M.S. Yusseppone, O. Defeo, B.J. Lomovasky
While the physical characteristics of sandy beaches play a significant role in shaping the macrofaunal community features through morphodynamics, regional environmental factors may also account for deviations from the expected patterns. Here, we assess the concurrent effects of local morphodynamic factors and regional variables, such as sea surface temperature (SST), salinity, and chlorophyll- (chl-)
-
Effects of temperature and nitrogen sources on physiological performance of the coccolithophore Emiliania huxleyi Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-09 Zihao Wang, Shanying Tong, Dong Xu, Xintong Huang, Yanmin Sun, Bingkun Wang, Haoming Sun, Xiaowen Zhang, Xiao Fan, Wei Wang, Ke Sun, Yitao Wang, Pengyan Zhang, Zhifeng Gu, Naihao Ye
Both temperature and nutrient levels are rising in worldwide ocean ecosystems, and they strongly influence biological responses of phytoplankton. However, few studies have addressed the interactive effects of temperature and nitrogen sources on physiological performance of the coccolithophore In this study, we evaluated algal growth, photosynthesis and respiration, elemental composition, enzyme activity
-
Comprehensive analysis and assessment of exposure to enteric viruses and bacteria in shellfish Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-08 Gustavo Waltzer Fehrenbach, Emma Murphy, Robert Pogue, Frank Carter, Eoghan Clifford, Ian Major
Shellfish species, including oysters, clams, and mussels, are extensively cultured in coastal waters. Its location is determined by factors such as nutrient availability, water temperature, tidal cycle, and the presence of contaminants such as and enteric viruses. With the expansion and intensification of human activities at vicinities, the presence of anthropogenic contaminants has increased, threatening
-
Stoichiometry of growth under variable scenarios of nutrient limitation: Differential homeostasis of body composition among growth phenotypes of the Manila clam Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-07 Kristina Arranz, Iñaki Urrutxurtu, Ignasi Gairin, Enrique Navarro
Fast- and slow-growing phenotypes from two separate breeding families of the Manila clam () were alternatively fed two monoalgal diets with high and low N content (C:N ratios of 4.9 and 13.5, respectively). After 35 days of food conditioning, clams were sacrificed, and the soft body was dissected out into five different tissue fractions to determine the corresponding ponderal ratios (tissue wt./body
-
A review of microplastic transport in coastal zones Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-07 Jianhao Jiang, Lulu He, Shiwei Zheng, Junping Liu, Lixin Gong
Transport of microplastics (MPs) in coastal zones is influenced not only by their own characteristics, but also by the hydrodynamic conditions and coastal environment. In this article, we first summarized the source, distribution and abundance of MPs in coastal zones around the world through the induction of in-situ observation literature, and then comprehensively reviewed the different transports
-
Water stratification alters phytoplankton assemblages in scallop farming waters of the North Yellow Sea in China Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-07 Junyan Zhao, Bao Zhao, Ning Kong, Ming Li, Fuzhe Li, Jinyu Liu, Lingling Wang, Linsheng Song
As evaluation indicators of the primary productivity, the phytoplankton biomass and community structure are of great significance to the fishery industry, which can be driven by ocean currents, nutrients and water stratification. In the present study, the characteristics of phytoplankton assemblages in different water layers of a typical Yesso scallop farming area in Zhangzi Island, the North Yellow
-
Copepoda community imprints the continuity of the oceanic and shelf oxygen minimum zones along the west coast of India Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-07 V. Vidhya, R. Jyothibabu, N. Arunpandi, K.T. Alok, C.P. Rashid, R. Thirumurugan, C.R. Asha Devi, G.V.M. Gupta
The largest continental shelf Oxygen Minimum Zone (OMZ) in the world is formed along the Indian western shelf in the eastern Arabian Sea during the Southwest Monsoon [(SWM); June–September], which is a natural pollution event associated with the coastal upwelling. This study examines the composition, abundance, and distribution of copepods in the Northeast Monsoon [(NEM); November to February] and
-
Ammonia removal mitigates white plague type II in the coral Pocillopora damicornis Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-06 Qi Zhang, Hongfei Su, Chunrong Lu, Qinyu Huang, Shuying Wang, Xucong He, Jie Zou, Qiqi Chen, Yuan Liu, Lujia Zeng
White Plague Type II (WPL II) is a disease increasingly affecting scleractinian coral species and progresses rapidly. However, the etiological pathogen and remedy remain elusive. In this study, transmission experiments demonstrated that and representing the WPL II pathogens, could infect . The infection produced selected pathological symptoms, including bleaching, tissue loss, and decolorization. Furthermore
-
Dynamics and effects of plastic contaminants’ assimilation in gulls Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-06 Sara N. Veríssimo, Sara C. Cunha, José O. Fernandes, María Casero, Jaime A. Ramos, Ana C. Norte, Vitor H. Paiva
Polybrominated diphenyl ethers are persistent disrupters assimilated by organisms, yet little is known about their link to plastic ingestion and health effects. In an experiment, two groups of yellow-legged/lesser black-backed gulls (/) were fed plastics with BDE99 to assess leaching into brain, preen oil, liver and fat tissues and evaluate effects on health and stress parameters.
-
Microbial community and transcriptional responses to V. coralliilyticus stress in coral Favites halicora and Pocillopora damicornis holobiont Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-06 Shuying Wang, Chunrong Lu, Qi Zhang, Xucong He, Weihui Wang, Jiani Li, Hongfei Su
Variability in coral hosts susceptibility to is well-documented; however, the comprehensive understanding of tolerance of response to pathogen among coral species is lacked. Herein, we investigated the microbial communities and transcriptome dynamics of two corals in response to . displayed greater resistance challenge than . Furthermore, the relative abundances of Flavobacteriaceae Vibrionacea, Rhodobacteraceae
-
Metabolomics revealed more deleterious toxicity induced by the combined exposure of ammonia and nitrite on Ruditapes philippinarum compared to single exposure Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-06 Ming Cong, Zhaoshun Li, Yu Che, Yuanmei Li, Wenwen Tian, Jiasen Lv, Xiyan Sun
NH–N and NO–N always co-exist in the aquatic environment, but there is not a clear opinion on their joint toxicities to the molluscs. Presently, clams were challenged by environmental concentrations of NH–N and NO–N, singly or in combination, and analyzed by metabolomics approaches, enzyme assays and transmission electron microscope (TEM) observation. Results showed that some same KEGG pathways with
-
-
Understanding the variable metal concentrations in estuarine oysters Crassostrea hongkongensis: A biokinetic analysis Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-06 Shaomei Yang, Yanping Li, Fengyuan Chen, Shanshan Chen, Xin Luo, Wei Duan, Yongyan Liao, Hao Jiang, Ke Pan
Understanding the metal concentrations in oysters is important because of its relevance to human health and biomonitoring. However, metal concentrations in oysters are highly variable in nature and not well explained by metal exposure. This study examined the metal contamination in farm oysters grown in Qinzhou Bay, south China. Cadmium (Cd), zinc (Zn), nickel (Ni), and copper (Cu) concentrations in
-
Interactive effects of elevated temperature and Photobacterium swingsii infection on the survival and immune response of marine mussels (Perna canaliculus): A summer mortality scenario Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-03 Awanis Azizan, Leonie Venter, Jingjing Zhang, Tim Young, Jessica A. Ericson, Natalí J. Delorme, Norman L.C. Ragg, Andrea C. Alfaro
-
Food web of the oceanic region of the archipelago of Madeira: The role of marine megafauna in the subtropical northeast Atlantic ecosystem Mar. Environ. Res. (IF 3.3) Pub Date : 2024-01-29 Joana Romero, Hany Alonso, Luís Freitas, José Pedro Granadeiro
Many oceanic areas are still in need of baseline information on their structure and functioning. This is particularly important due to the ever-increasing impacts of global changes, which have led to the decline of marine life, and top predators in particular. The study of the structure and functioning of food webs can help understand the consequences of the disappearance of this group in marine ecosystems
-
Investigating the outcomes of a threatened gorgonian in situ transplantation: Survival and microbiome diversity in Paramuricea clavata (Risso, 1827) Mar. Environ. Res. (IF 3.3) Pub Date : 2024-01-30 Tristan Estaque, Solène Basthard-Bogain, Olivier Bianchimani, Vincent Blondeaux, Adrien Cheminée, Margaux Fargetton, Justine Richaume, Marc Bally
Gorgonian octocorals are threatened by global and local stressors that can act synergistically to affect their health. In recent years, mass mortality events triggered by marine heatwaves have caused demographic declines in Mediterranean gorgonian populations that may lead to their collapse. Potential changes in microbiome composition under stressful conditions may further increase the susceptibility
-
Microscale dispersion of intertidal seagrass macrofauna Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-01 R.S.K. Barnes, Sarah M. Hamylton, Liz Borburgh
-
Multiple habitats drive the functional diversity of fish assemblages in a tropical estuary Mar. Environ. Res. (IF 3.3) Pub Date : 2024-02-01 Emanuelle Bezerra Maciel, Daniele Jovem-Azevêdo, Caroline Stefani da Silva Lima, André Luiz Machado Pessanha
Understanding estuarine diversity patterns is crucial to highlight the ecological value of coastal ecosystems for fish assemblages. To increase our knowledge, we investigated the functional diversity of fish assemblages in five estuarine habitats (sandy beaches, mudflats, seagrass meadows, mangrove fringes, and estuarine riparian vegetation) in a tropical estuary of Brazil. Functional diversity metrics