This research examines the impacts of amoxicillin and copper, separately and together, on the taxonomic and functional diversity of free-living marine nematodes. Sediment samples were gathered from the Jeddah shoreline in Saudi Arabia, and meiobenthic organisms were subjected to two concentrations of amoxicillin [550 and 1100 ng/L] and copper [130 mg/kg dry weight (dw) and 260 mg/kg dw] in microcosms

Phytoplankton play an integral role in primary production in aquatic ecosystems, thus butressing its function as an important tool for pollution indication and water quality assessment. Their response mechanism towards the changes in nutrient levels and environmental conditions makes them valuable indicators of ecosystem health. The driver of this response is a complex molecular mechanism involving

In the current study, the mussels Mytilus galloprovincialis, exposed to four varying temperatures (17, 20, 23, and 26 °C), were contaminated with 50 μg/L of bisphenol A both with and without Nannochloropsis salina. The toxicity evaluation is determined by quantifying various biomarkers related to oxidative stress, neurotoxicity, and cellular damage. The key findings indicate that the toxicity of bisphenol

A set of laboratory experiments was conducted to assess the trapping efficiency of buoyant plastic debris by the estuarine vegetation Spartina maritima. Different hydrodynamic conditions typical of salt marshes were simulated in a hydraulic flume. These conditions included varying water levels between 40% and 90% of stem height, wind speeds up to 2 m/s, and unidirectional current velocities between

Surface washing agents (SWAs; also known as beach cleaners or shoreline cleaning agents) are oil spill cleanup agents that enhance the separation and removal of oil from substrates. Compared to conventional measures such as substrate removal or high-pressure/hot-water flushing, the fundamental advantage of using a SWA on oiled substrates is a higher degree of oil removal with reduced secondary impacts

Free-living (FL) and particle-attached (PA) prokaryotes, having distinct ecological niches, play significant roles in marine ecosystems. These communities respond rapidly to environmental changes and exhibit seasonal patterns. However, their temporal stability, crucial for maintaining microbial community structure and function, remains poorly understood. This study assessed community stability, particularly

This study investigated the influence of both natural and anthropogenic factors on meiofauna assemblages along the coasts of the Yellow Sea (YS) and Bohai Sea (BS). Over 300 abiotic and biotic samples were collected from 101 sites, categorized by land use (agricultural, industrial, municipal, no use), region (southern, central, northern China, and Korea), and habitat (fresh, brackish, saline). Meiofauna

Marine eutrophication remains a pressing global environmental challenge, demanding urgent advances in science-based assessment frameworks to mitigate its ecological and socio-economic impacts. Current methodologies, however, face critical limitations, including overly complex indicator systems, high spatiotemporal variability in coastal and marine environments, challenges in distinguishing natural

On January 6, 2018, the Sanchi tanker, carrying 111,300 metric tons of natural gas condensate as cargo and 1900 metric tons of heavy fuel oil (HFO) for propulsion, collided with the bulk carrier Changfeng Crystal in the East China Sea. The collision caused a catastrophic explosion, and after burning and drifting for eight days, the Sanchi sank on January 14, 2018. While the incident had the potential

Per- and polyfluoroalkyl substances (PFAS) are synthetic chemicals known for their excellent persistence and surface activity. PFAS can be readily transported through waterways into the ocean, which serves as their primary global sink. This review summarizes recent studies on PFAS in the marine environment and outlines some key directions for future research. Certain PFAS may pose significant risks

Steroids, known for their endocrine-disrupting capabilities, have become a subject of considerable concern in the scientific community. This research offers a thorough evaluation of steroid contaminants within the Jiulong River Estuary (JRE), examining their spatiotemporal distribution, multimedia distribution, and mass inventory. Seven steroids were detected in water samples, while ten steroids were

Eutrophication status assessments of the Baltic Sea rely on regionally agreed monitoring and assessment methodologies based on indicators with thresholds of achieving or not achieving a good environmental status. Model outputs can be used to increase the data availability and assessment confidence. We evaluated the applicability of Copernicus Marine Service (CMEMS) reanalysis products for four eutrophication

Assessing water quality is an important undertaking in environmental management, particularly along coasts where human development is concentrated. This study assessed waters of the Guana Estuary, an impounded estuary in Northeast Florida with an urbanized watershed. Discrete monthly samples collected from 2017 to 2023 were analyzed for chlorophyll a, nitrogen species, total phosphorus, fecal indicator

Marine eco-environmental protection enterprises are an important part of protecting marine ecology and promoting the development of marine economy. Based on the data of marine eco-environmental protection enterprises in eleven coastal provinces (municipalities) of China from 2000 to 2022, combined with the marine eco-environmental protection regulations, this paper analyzes the evolution process of

Harmful algal blooms (HABs) are natural proliferations of microalgal species, able to produce toxic compounds, such as domoic acid (DA), a neurotoxin responsible for the Amnesic Shellfish Poisoning (ASP) which can be lethal for mammals. Pectinid species are of high economic value and are particularly vulnerable to these events. As filter-feeders, they can accumulate DA and transfer it through the food

Pharmaceuticals and personal care products (PPCPs) represent emerging contaminants of global concern, yet their distribution in ecologically vulnerable coastal water source areas remains underexplored. This study investigated 29 PPCPs in environment across urban, rural, and reservoir areas within a low-pollution watershed in eastern Guangdong, China. Urban areas exhibited the highest PPCPs concentrations

Drugs of abuse are highly consumed psychoactive compounds that are not completely removed during wastewater treatment. They have been detected in surface waters globally, yet little is known about their effects on aquatic organisms. Herein we investigated the impacts of three frequently detected drugs – benzoylecgonine, fentanyl and ketamine – on the larvae development of C. virginica oysters, a commercially

Floating marine litter (FML), due to its persistence and long-range transport potential, has significant impacts on the global marine environment and biodiversity. The coastal watershed interface is a major contributor to this issue, highlighting the importance of quantifying the impact of anthropogenic disturbance on FML for effective management. This study used year-round monthly monitoring data

Marine plastic debris poses a significant environmental threat. In order to study and combat this pollution, efficient and automated detection methods are essential. Hyperspectral imaging and deep learning provide a robust framework for classifying floating marine plastic debris. However, deep learning approaches often suffer from high computational complexity and limited interpretability. In addition

Ocean acidification (OA) poses a threat to marine calcifiers by modifying carbonate chemistry in ambient seawater, where localized fluctuations exert more immediate physiological impacts than bulk seawater changes. We investigated the heterogeneity of carbonate chemistry parameters (pH, DIC, pCO₂, TA-DIC) within the respiratory microenvironments (RE) of four molluscan species (Mytilus galloprovincialis

Organophosphate esters (OPEs) are high-production-volume flame retardants and plasticizers that have drawn mounting concern recently due to accumulating evidence of their environmental ubiquity, bioaccumulation and toxic potential. The East China Sea (ECS), adjacent to two most urbanized and industrialized provinces in China (i.e., Zhejiang and Fujian), has been subjected to substantial anthropogenic

To comprehensively analyze the relation between the environmental factors and chlorophyll a (Chl-a) in the Bohai Sea (BS) and the Yellow Sea (YS), three investigations were conducted during April and October of 2019, and July of 2020. The distribution of Chl-a demonstrated pronounced regional and seasonal variability. The horizontal distribution of Chl-a was notably heterogeneous, generally exhibiting

This study analyzed total arsenic (As) and As species concentrations in muscle and liver of marine fish species commercially important of the southwest Atlantic coast. Most total As levels exceeded national and international regulations, Urophycis brasiliensis exhibited the highest total As and toxic As species levels (total As: 16.2 and 22.3 mg kg−1 ww and toxic As species: 0.54 and 3.21 mg kg−1 ww

We studied the PAH profiles in the soils of the marsh areas along the Barents Sea coast and found that the PAH content in the study area is low and corresponds to background levels. Peat soils contained more PAHs than organomineral soils, which is due to the characteristics of their historical formation. PAHs in soils along the Barents Sea coast are of petrogenic origin. The main sources of PAHs in

Oil seeps and spillage events can harm the environment in various ways. In the ocean, oil may form droplets or remain in the water column, becoming ingested by exposed species and potentially contaminating humans through seafood consumption. This study aimed to characterize and evaluate the toxicity of the water accommodated fraction (WAF) obtained from a solid soil-oil mass after the Brazilian oil

Resilience is vital for maintaining the health of temperate coastal systems, especially in the Anthropocene era, where anthropogenic pressures such as pollution, physical impacts, and overfishing pose significant threats. However, the scarcity of studies addressing marine resilience hampers its effective management. To address this issue, we evaluated the resilience of 300 temperate rocky reefs situated

Environmental communication effectively influences environmental intentions, yet its ability to translate these intentions into actual behavior changes remains understudied, especially in coastal ecological engineering contexts. This study investigates this potential inconsistency by employing the intention-behavior gap concept and examining the impact of four distinct informational interventions:

Given their pivotal role in providing essential ecosystem services, understanding the dynamics of coastal waters and their responses to disturbances such as climate change and nutrient pollution is imperative. In this study, we conducted year-long monitoring (May 2021 to May 2022) of the pico- and nanoplanktonic community driving biogeochemical cycling in waters of the Solent on the south coast of

Ocean acidification poses a growing environmental threat to estuarine ecosystems. Most research has focused on bottom water acidification driven by eutrophication from riverine nutrient inputs. In contrast, the impacts of other riverine components in estuarine systems have received less attention. This study investigates the impacts of riverine carbonate and organic matter input on acidification in

A common approach to removing pollution from stormwater is through the installation of gross pollutant traps (GPTs). However, GPTs are often not maintained effectively, leading to pollution accumulation and additional pollution bypassing into natural environments. To explore why GPTs are not always maintained, we surveyed representatives from the Australian stormwater industry (n = 94) using convenience

The Myeik region in Myanmar hosts extensive mangrove forests, however, increasing human activities like mining and agriculture have caused heavy metal pollution. This study investigates the role of Avicennia marina in metal dynamics and contamination status in Myeik through metal concentration analysis in leaves, roots, and sediments. Bioconcentration factors (BCF) and translocation factors (TF) were

Coastal tourism has witnessed rapid growth over the past two decades, often accompanied by increasing environmental concerns, particularly eutrophication in sensitive marine zones. This study explores the relationship between coastal tourism expansion and eutrophication across the Mediterranean region from 2000 to 2023 using Support Vector Machines (SVMs) as a predictive analytical model. By integrating

This study investigates MPs in sediments and polymetallic nodules collected from the Clarion Clipperton Zone (CCZ) in the Pacific Ocean, using samples collected during a deep-sea mining exploration. MPs were detected in over half of the sediment samples and a third of the nodule samples, with an abundance ranging from 0 to 480 items/kg dry weight (d.w.) and 0 to 80 items/kg d.w. for sediments and nodules

A new method is introduced that, using water-quality modelling results focused on single substances, estimates the degree of the progressive dilution and degradation of a complex mixture after discharge in the marine environment, until its consistency is modified due to different biogeochemical processes acting on its constituents. The method is based on the variance between the dilution ratios of

Herbicide contamination of aquatic ecosystems poses a critical risk to biodiversity. Bioassays provide useful ecological insights on responses to herbicides; however, they require a model organism. Ulva australis is an ideal candidate for herbicide toxicity evaluations. Conventional monitoring methods have certain limitations, necessitating innovative approaches for ecological risk assessment. We evaluated

The ocean plays a critical role in sustaining society and global biodiversity. However, a range of environmental impacts has led to its degradation. In response, initiatives promoting the sustainable use of marine environments, such as educational programs on ocean literacy, have gained importance. Despite these efforts, the short duration of many interventions has limited their ability to address

The impact of heavy metal pollution on plankton in the context of climate warming may become more complex, especially on the population dynamics of zooplankton and algae. To address this important scientific issue, we studied the effect of heavy metal cadmium pollution (6 μM: environmentally relevant concentration; 12 μM: non-lethal concentration but causing negative effect on reproductive performance

Under the influence of climate change and human activities, drought and heavy metal pollution are increasingly threatening the stability of coastal regions. In this study, the ecophysiological responses of three representative coastal plant species (Hibiscus tiliaceus, Barringtonia racemosa, and Terminalia neotaliala) in subtropical regions to lead addition (Pb), drought stress (D), their co-existence

Per- and polyfluoroalkyl substances (PFAS) are ubiquitous global contaminants where the ocean plays a critical role in global PFAS cycling. Large estuarine systems are conduits for anthropogenic contaminants, but little is known regarding PFAS in small tidal creek systems. Surface waters from seven tidal creeks were analyzed for 16 target PFAS including legacy and replacement PFAS. Mean total PFAS

Polycyclic aromatic hydrocarbons (PAHs) can be stored for long periods in soil or sediments, especially in sediments containing large amounts of organic matter, because of their special properties. Due to the high organic matter content in mangrove forests, this area serve as natural reservoir or a “sink” for persistent organic pollution. For this reason, sediment and soil samples were obtained from

This study investigates the prevalence and characteristics of benthic marine litter along the southeastern Black Sea coast. A two-year seasonal trawling survey (2017–2018) was conducted between Çayağzı Cape and Ünye-Taşkana Cape across three depth ranges to evaluate litter density and composition in accordance with the Marine Strategy Framework Directive (MSFD). The results indicate an average litter

Antarctica is not immune to pollution, and Semi-volatile organic compounds (SVOCs) in Antarctica's water systems can reach the continent through long-range atmospheric transport, ocean currents, and human activities. The aim of this study was investigated the distribution of SVOCs, including PAHs, PCBs, and OCPs, in Antarctic lake and marine waters, assesses their potential sources, and evaluates the

Ship biofouling is a primary pathway for the introduction and global spread of non-indigenous species, posing significant risks to marine ecosystems. However, the extent to which ship hull-attached diatoms survive and disperse following in-water hull cleaning (IwHC) remains poorly understood. Here, we analyzed the attached diatoms compositions in the in-water hull cleaning water (IwHCW) from three

The Mediterranean seagrass species Posidonia oceanica forms extensive meadows that provide numerous ecological and economic services. Among the human activities threatening these meadows, boat anchoring causes severe degradation resulting in meadow fragmentation, exposure of the dead matte, and sediment disruption. In this study, we assessed the natural recolonisation dynamics of P. oceanica in anchoring-degraded

In the present study, occurrence and characteristics of microplastics in mangrove sediments and benthic molluscs viz., black clam (Villorita cyprinoides), yellow clam (Meretrix casta), mangrove horn snail (Telescopium telescopium) and brackish water snail (Neripteron violaceum) were studied from mangrove habitats of Vembanad Lake, the largest estuary and a Ramsar site on the south-west coast of India

Groundwater contamination is a significant threat to water security in Bangladesh, especially in coastal areas influenced by salinity intrusion and geogenic pollutants. The study has collected 48 groundwater samples and analyzed 16 water quality parameters to assess the suitability of groundwater for drinking and irrigation purposes in a highly vulnerable coastal area of Bangladesh. The Canadian Council

Coastal shallow habitats are greatly exposed to artificial light at night (ALAN). Although the ecological impacts of light pollution have been tested in some marine species, few studies have been conducted at assemblage level. Our study is a real-scale approach to the effects of ALAN from seaside promenade lighting to the crustacean assemblage of the water column. Beach lighting of a coastal town remained

Mangrove plants grow in muddy and swampy areas where the land and sea meet and are threatened by various pollutants. In the present study, Avicennia marina (Forsk.) Vierh. (A.marina), the pioneer species in mangrove, was selected as model plant. A composite pollution model of microplastics (polypropylene [PP], polyethylene [PE], and polyamide [PA]) and multiple heavy metals (Cr, Cu, Pb, Zn, Cd, Mn

Persistent organic pollutants (POPs) in killer whale (Orcinus orca) populations in the Northwestern Pacific Ocean are much less studied compared to the Northeastern Pacific and North Atlantic populations. The objective of this study was to address that knowledge gap by analysis of biopsy samples obtained as part of studies of killer whale feeding and habitat use in coastal waters of the Russian Far

Boulder seawalls constructed with granite riprap for shoreline armouring lack habitat complexity, leading to lower marine biodiversity than natural rocky shores. Baskets of live oysters and cured oyster shells, and strings of cured shells laid on concrete blocks were installed on ripraps in Hong Kong, China with an aim to enhance biodiversity and ecosystem functioning towards that of a natural rocky

The ingestion of plastic debris has been reported in all seven marine turtle species, affecting vital processes throughout their entire life cycle and key habitats. Consequently, this emerging threat has been recognized as a priority conservation concern. The potential health impacts range from cryptic sublethal effects to severe injury and death. A comprehensive understanding of these impacts and

More than 70 years of industrial production of per- and polyfluoroalkyl substances (PFAS) have resulted in their ubiquitous presence in the environment on a global scale, although differences in sources, transport and fate lead to variability of occurrence in the environment. Gull eggs are excellent bioindicators of environmental pollution, especially for persistent organic pollutants such as PFAS

Ocean alkalinization, especially through olivine addition, represents a promising strategy for reducing atmospheric CO2 levels. The addition of olivine may have seasonal impacts on marine microalgal and bacterial communities, which have not been studied yet. In this study, controlled laboratory experiments were conducted in spring and autumn to measure the responses of microalgal and bacterial communities

The UV filters 2-hydroxy-4-methoxybenzophenone, or benzophenone-3 (BP3), and 4-methylbenzylidene camphor, or enzacamene (4-MBC), are recognised as toxicants that might impair different life-history traits in marine invertebrates and threaten the resilience of critical ecosystems such as coral reefs. Their effects on different life-traits of the calanoid copepod Acartia tonsa were tested, including

Mangroves are halophytic woody plants inhabiting the sea-land confluence of tropical and subtropical regions, influenced by marine and terrestrial factors. Among various others, Avicennia marina is the only mangrove species that thrives the extreme climatic conditions of the Arbian Gulf (the Gulf). Highly varying temperatures, hyper salinity, freshwater scarcity and anthropogenic pressures have resulted

Microplastics (MPs) have emerged as a new global pollutant, endangering marine ecosystems. Nonetheless, research on MP pollution in Bangladesh's estuaries and coastal environments is scare. Here, we carried out the experiment to evaluate the spatial and temporal variations of MPs along both bank of the Karnaphuli River in Chattogram city of Bangladesh, encompassing nearly all locations where the river

Shellfish and macroalgae are usually known as environmental remediation species in aquaculture systems. However, the environmental issues are frequently found in shellfish and macroalgae large scale monoculture areas. Although shellfish and macroalgae IMTA might mitigate adverse effects of monoculture, the relationships among cultured organisms, plankton and environmental factors are unclear. This

Reducing the negative impacts of global change on organismal physiology is a critical area of scientific investigation in the Anthropocene. Marine coastal ecosystems that exist downstream from urban centers are often subjected to excess nutrients, pathogens, and chemicals via runoff, which can harm organismal function, and may interact with climate change stress. To simultaneously investigate the individual

Marine protected areas (MPAs) should be prioritized for management actions against bioinvasions. Controlling underwater invaders is particularly challenging because of the need for specific tools and methodologies with long-term investment. Since 2013, a Brazilian no-take MPA has adopted the adaptive management of sun coral (Tubastraea spp.). The historical dataset of sun coral removal in the Alcatrazes

This study examines the occurrence, physical characteristics (size, colour, and shape), and polymer compositions of microplastics (MPs) in beach sediments along the Kuala Langat coastline impacted by tourism and fishing activities. Microplastics particle were isolated using density separation, characterized using microscopy and Spectroscopy technique. Microplastic concentrations ranged from 0.01 to