3,570 results match your criteria western coastal

Concentrations, spatial distribution, sources and environmental health risks of potentially toxic elements in urban road dust across China.

Sci Total Environ 2021 Sep 10;805:150266. Epub 2021 Sep 10.

Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address:

Potentially toxic element (PTE) pollution is widespread in road dust across China, and the effects of PTEs in road dust on health cannot be ignored. In this study, the concentrations of six PTEs (Pb, Cd, Cr, Cu, Zn and Ni) in 4336 road dust samples from 58 cities in 31 provincial regions of China taken after 2000 were obtained from the literatures. Based on these data, the spatial distribution, pollution sources, and ecological and human health risks of PTEs in road dust were comprehensively assessed and the main pollution factors and areas of high risk were identified. Read More

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September 2021

Venomics of the poorly studied hognosed pitvipers Porthidium arcosae and Porthidium volcanicum.

J Proteomics 2021 Sep 14:104379. Epub 2021 Sep 14.

College of Biochemistry and Pharmacy, Faculty of Chemical Sciences, University of Cuenca, Cuenca, Ecuador. Electronic address:

We report the first proteomics analyses of the venoms of two poorly studied snakes, the Manabi hognosed pitviper Porthidium arcosae endemic to the western coastal province of Manabí (Ecuador), and the Costa Rican hognosed pitviper P. volcanicum with distribution restricted to South Pacific Costa Rica and western Panamá. These venom proteomes share a conserved compositional pattern reported in four other congeneric species within the clade of South American Porthidium species, P. Read More

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September 2021

Urofaecal glucocorticoid metabolite concentrations in African penguin () chick populations experiencing different levels of human disturbance.

Conserv Physiol 2021 14;9(1):coab078. Epub 2021 Sep 14.

Department of Biodiversity and Conservation Biology, University of the Western Cape, Bellville, 7535, South Africa.

Despite the importance of ecotourism in species conservation, little is known about the industry's effects on wildlife. In South Africa, some African penguin () colonies have become tourist attractions. The species is globally endangered, with population sizes decreasing over the past 40 years. Read More

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September 2021

Assessment of malaria infection among pregnant women and children below five years of age attending rural health facilities of Kenya: A cross-sectional survey in two counties of Kenya.

PLoS One 2021 16;16(9):e0257276. Epub 2021 Sep 16.

Eastern and Southern Africa Centre of International Parasite Control, Kenya Medical Research Institute (KEMRI), Nairobi, Kenya.

Background: In Kenya, health service delivery and access to health care remains a challenge for vulnerable populations, particularly pregnant women and children below five years. The aim of this study, therefore, was to determine the positivity rate of Plasmodium falciparum parasites in pregnant women and children below five years of age seeking healthcare services at the rural health facilities of Kwale and Siaya counties as well as their access and uptake of malaria control integrated services, like antenatal care (ANC), offered in those facilities.

Methods: Cluster random sampling method was used to select pregnant women and children below five years receiving maternal and child health services using two cross-sectional surveys conducted in eleven rural health facilities in two malaria endemic counties in western and coastal regions of Kenya. Read More

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September 2021

The role of algal blooms and community respiration in controlling the temporal and spatial dynamics of hypoxia and acidification in eutrophic estuaries.

Mar Pollut Bull 2021 Sep 9;172:112908. Epub 2021 Sep 9.

School of Marine and Atmospheric Sciences, Stony Brook University, Southampton, NY 11968, United States of America. Electronic address:

While hypoxia and acidification can be common occurrences in eutrophic coastal zones, the precise, coupled temporal and spatial dynamics of these conditions are poorly described. Here, continuous measurements of water column pH, pCO, carbonate chemistry, and dissolved oxygen (DO) concentrations were made from spring through fall across two, temperate eutrophic estuaries, western Long Island Sound (LIS) and Jamaica Bay, NY, USA. Vertical dynamics were resolved using an underway towing profiler and an automated stationary profiling unit. Read More

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September 2021

Coastal armouring affects intertidal biodiversity across the Alboran Sea (Western Mediterranean Sea).

Mar Environ Res 2021 Sep 8;171:105475. Epub 2021 Sep 8.

Laboratorio de Biología Marina, Departamento de Zoología, Facultad de Biología. Universidad de Sevilla. Avda. de la Reina Mercedes, 6. 41012, Sevilla, Spain. Electronic address:

Intertidal ecosystems are key habitats that are being replaced by artificial hard substrates due to the increment of human activities in coastal areas. These new substrates host generally less biodiversity mainly due to differences in complexity and composition. This is a global phenomenon and has led to the development of strategies in the framework of eco-engineering. Read More

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September 2021

Connecting post-release mortality to the physiological stress response of large coastal sharks in a commercial longline fishery.

PLoS One 2021 15;16(9):e0255673. Epub 2021 Sep 15.

Center for Shark Research, Mote Marine Laboratory, Sarasota, Florida, United States of America.

Bycatch mortality is a major factor contributing to shark population declines. Post-release mortality (PRM) is particularly difficult to quantify, limiting the accuracy of stock assessments. We paired blood-stress physiology with animal-borne accelerometers to quantify PRM rates of sharks caught in a commercial bottom longline fishery. Read More

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September 2021

ROV assessment of mesophotic fish and associated habitats across the continental shelf of the Amathole region.

Sci Rep 2021 Sep 13;11(1):18171. Epub 2021 Sep 13.

Department of Biological Sciences, University of Cape Town, Rondebosch, 7700, South Africa.

Understanding how fish associate with habitats across marine landscapes is crucial to developing effective marine spatial planning (MSP) in an expanding and diversifying ocean economy. Globally, anthropogenic pressures impact the barely understood temperate mesophotic ecosystems and South Africa's remote Amathole shelf is no exception. The Kei and East London region encompass three coastal marine protected areas (MPAs), two of which were recently extended to the shelf-edge. Read More

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September 2021

Neustonic microplastics and zooplankton in coastal waters of Cabrera Marine Protected Area (Western Mediterranean Sea).

Sci Total Environ 2021 Sep 4;804:150120. Epub 2021 Sep 4.

Centro Oceanográfico de Baleares (IEO, CSIC), Moll de Ponent s/n, 07015 Palma de Mallorca, Spain.

The high abundance of microplastics in marine environments is becoming a growing threat for Marine Protected Areas (MPAs). Recent studies have identified microplastics (MP) as having multiple effects on biota, and it is of special interest to highlight their effects on zooplanktonic organisms. These organisms play a key role on local food web structures and there is a need to better understand the accumulation of MPs and associated contaminants within the food web. Read More

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September 2021

Effects of elevated CO concentration and nitrogen addition on foliar phosphorus fractions of Mikania micranatha and Chromolaena odorata under low phosphorus availability.

Physiol Plant 2021 Sep 13. Epub 2021 Sep 13.

CAS Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China.

Invasive plants rapidly spread in habitats with low soil phosphorus (P) availability and have triggered a sharp decline in the diversity of native species. However, no studies have explored how widespread invasive species acclimate to low soil P availability via changing foliar P fractions, especially under elevated atmospheric CO concentrations ([CO ]) and nitrogen (N) deposition. Here, an open-top chamber experiment was conducted to explore the effect of nutrient addition and elevated [CO ] on leaf traits and foliar functional P fractions (i. Read More

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September 2021

Monitoring an ungagged coastal marsh to analyze the salinity interaction of the marsh with Lake Erie.

Environ Monit Assess 2021 Sep 13;193(10):645. Epub 2021 Sep 13.

DSI, LLC, Edmonds, WA, USA.

Phragmites growth in a marsh watershed due to increased salinity has been a crucial issue across the world. The objective of this study was to investigate the salinity movement in the ungagged Mentor Marsh of Ohio, USA, where the salinity had increased due to a number of potential sources causing a decline in the native vegetation and leading to the increased invasive phragmites growth. In this study, we conducted a detailed bathymetric survey and established several monitoring stations to record hourly environmental data in Mentor Marsh. Read More

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September 2021

Long term field trials demonstrate sustainable nutrient supply and uptake in rehabilitated bauxite residue.

Sci Total Environ 2021 Sep 4;804:150134. Epub 2021 Sep 4.

Department of Biological Sciences and Bernal Institute, University of Limerick, Ireland. Electronic address:

Establishing a sustainable vegetation cover is one of the most important steps in progressive rehabilitation and final closure of ore-processing residues and tailings facilities. Sustainable rehabilitation partly depends on establishing and maintaining a supply of plant-available nutrients, but few long term field studies demonstrating the success or failure of rehabilitation of degraded land such as mineral processing tailings have been reported. Bauxite-processing residues are a highly sodic, highly alkaline, nutrient-poor by-product generated from alumina extraction, and pose many challenges for successful rehabilitation. Read More

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September 2021

Predictive model for progressive salinization in a coastal aquifer using artificial intelligence and hydrogeochemical techniques: a case study of the Nile Delta aquifer, Egypt.

Environ Sci Pollut Res Int 2021 Sep 9. Epub 2021 Sep 9.

Geology Department, Faculty of Science, Cairo University, Cairo, Egypt.

To monitor groundwater salinization due to seawater intrusion (SWI) in the aquifer of the eastern Nile Delta, Egypt, we developed a predictive regression model based on an innovative approach using SWI indicators and artificial intelligence (AI) methodologies. Hydrogeological and hydrogeochemical data of the groundwater wells in three periods (1996, 2007, and 2018) were used as input data for the AI methods. All the studied indicators were enrolled in feature extraction process where the most significant inputs were determined, including the studied year, the distance from the shoreline, the aquifer type, and the hydraulic head. Read More

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September 2021

Environmental factors shaping bacterial, archaeal and fungal community structure in hydrothermal sediments of Guaymas Basin, Gulf of California.

PLoS One 2021 8;16(9):e0256321. Epub 2021 Sep 8.

Department of Marine Sciences, University of North Carolina at Chapel Hill, NC, United States of America.

The flanking regions of Guaymas Basin, a young marginal rift basin located in the Gulf of California, are covered with thick sediment layers that are hydrothermally altered due to magmatic intrusions. To explore environmental controls on microbial community structure in this complex environment, we analyzed site- and depth-related patterns of microbial community composition (bacteria, archaea, and fungi) in hydrothermally influenced sediments with different thermal conditions, geochemical regimes, and extent of microbial mats. We compared communities in hot hydrothermal sediments (75-100°C at ~40 cm depth) covered by orange-pigmented Beggiatoaceae mats in the Cathedral Hill area, temperate sediments (25-30°C at ~40 cm depth) covered by yellow sulfur precipitates and filamentous sulfur oxidizers at the Aceto Balsamico location, hot sediments (>115°C at ~40 cm depth) with orange-pigmented mats surrounded by yellow and white mats at the Marker 14 location, and background, non-hydrothermal sediments (3. Read More

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September 2021

The Y-chromosome of the Soliga, an ancient forest-dwelling tribe of South India.

Gene 2020 Dec 13;763S:100026. Epub 2020 Jan 13.

Department of Molecular Biology, Colorado College, Colorado Springs, CO 80903, USA.

A previous autosomal STR study provided evidence of a connection between the ancient Soliga tribe at the southern tip of the Indian subcontinent and Australian aboriginal populations, possibly reflecting an eastbound coastal migration circa (15 Kya). The Soliga are considered to be among India's earliest inhabitants. In this investigation, we focus on the Y chromosomal characteristics shared between the Soliga population and other Indian tribes as well as western Eurasia and Sub-Saharan Africa groups. Read More

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December 2020

Nutrition integrated agricultural extension-a case study in Western Kenya.

Health Promot Int 2021 Sep 7. Epub 2021 Sep 7.

World Vegetable Center, Headquarters, Tainan, No. 60, Yi-Min Liao, Shanhua, Tainan, 74199, Taiwan (ROC).

Integrating nutrition communication in agricultural intervention programs aimed at increased food availability and accessibility in resource-poor areas is crucial. To enhance the sustainability and scalability of nutrition communication, the present study piloted the approach of 'nutrition integrated agricultural extension' and tested nutrition-related outcomes with two types of nutrition messages (specific vs. sensitive) and two delivery channels (public sector vs. Read More

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September 2021

Metal pollution in the Pearl River Estuary and implications for estuary management: The influence of hydrological connectivity associated with estuarine mixing.

Ecotoxicol Environ Saf 2021 Sep 3;225:112747. Epub 2021 Sep 3.

School of Marine Engineering and Technology, Sun Yat-sen University (Guangzhou)/Southern Laboratory of Ocean Science and Engineering (Zhuhai), China; Institute of Estuarine and Coastal Research, Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs, Guangzhou, China.

Understanding the metal pollution can help governments and estuary management groups manage metal inputs. Here, we comprehensively analyzed the behaviors of seven metals Cd, Zn, Cu, As, Pb, Cr, and Hg in water and the responses of these metals to hydrological connectivity in the Pearl River Estuary. The analyses were based on the field measurements of August-2016 in the estuary and January-2016 in the upper river mouth. Read More

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September 2021

Unveiling the extent of salinization to delineate the potential submarine groundwater discharge zones along the North-western coast of India.

Mar Pollut Bull 2021 Sep 2;172:112773. Epub 2021 Sep 2.

Discipline of Earth Sciences, Indian Institute of Technology Gandhinagar, 382355, Gujarat, India; Sustainability Cluster, School of Engineering, University of Petroleum & Energy Studies, Dehradun- 248 007, Uttrakhand, India. Electronic address:

The North-West coast of India was notable for the urbanization and semiarid climate, particularly the Gujarat coastal region which was facing water crises and aquifer salinization issue. Under the light of these critical issues, the present study investigates the sources of aquifer salinization and probable location of submarine groundwater discharge (SGD) using an integrated approach of major ion chemistry, statistical techniques, and isotopic signature of groundwater (GW). The evolution of GW reveals that water facies changes from Ca-Mg-Cl to Na-Cl type from the south Gujarat towards the Gulf of Khambhat. Read More

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September 2021

Phylogeography and population genetics of the cryptic bonnethead shark Sphyrna aff. tiburo in Brazil and the Caribbean inferred from mitochondrial DNA markers.

J Fish Biol 2021 Sep 2. Epub 2021 Sep 2.

Predator and Conservation Ecology Lab, Biological Sciences Department, Florida International University, Miami, Florida, U.S.A.

Resolving the identity, phylogeny, and distribution of cryptic species within species complexes is an essential precursor to management. The bonnethead shark, Sphyrna tiburo, is a small coastal shark distributed in the Western Atlantic from North Carolina (U.S. Read More

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September 2021

bark extract- an ameliorator of inflammatory derangement in etoposide induced mucositis: An experimental approach.

Vet World 2021 Jul 15;14(7):1822-1828. Epub 2021 Jul 15.

Department of Medicine, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India.

Background And Aim: Mucositis, one of the vulnerabilities of chemotherapy, affects the physiological activities and therapeutic strategies of patients because it can affect the normal cell population. Etoposide is a commonly used chemotherapeutic agent for cancers such as oral, lung, and gastrointestinal. In addition to the abnormal metabolic processes in the body caused by tumorigenesis, new metabolic alterations can occur, such as oxidative stress, antioxidant imbalance, and inflammatory reactions, all of which can contribute to existing patient vulnerability. Read More

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Validity of measures for life space mobility and physical activity in older adults with lower-limb amputation.

Prosthet Orthot Int 2021 Aug 31. Epub 2021 Aug 31.

Graduate Program in Rehabilitation Sciences, University of British Columbia, Vancouver, British Columbia, Canada GF Strong Rehabilitation Research Lab, Vancouver Coastal Research Institute, Vancouver, British Columbia, Canada Department of Occupational Science and Occupational Therapy, University of British Columbia, Vancouver, British Columbia, Canada Department of Medicine, University of Alberta, Edmonton, Alberta, Canada Department of Physical Medicine and Rehabilitation, Western University, London, Ontario, Canada.

Background: Older adults with lower-limb amputations (LLAs) often experience lack of confidence and poor balance, which limits their mobility. There are few validated measures for assessing these outcomes in the LLA population.

Objectives: To assess the validity of the Life Space Assessment (LSA) and the Physical Activity Scale for the Elderly (PASE) for older adults with LLA. Read More

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Application of novel framework approach for prediction of nitrate concentration susceptibility in coastal multi-aquifers, Bangladesh.

Sci Total Environ 2021 Aug 20;801:149811. Epub 2021 Aug 20.

Department of Chemistry, College of Science, King Khalid University, Abha 61431, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia.

This study aims to construct a novel framework approach for predicting and mapping nitrate concentration susceptibility in the coastal multi-aquifers of Bangladesh by coupling the K-fold cross-validation method and novel ensemble learning algorithms, including Boosting, Bagging and Random Forest (RF). In total, 286 nitrate sampling sites were employed in the model work. The dataset was demarcated into a 75:25 ratio for model construction (75% 3-fold ≅ 214 sites) and (25% 1-fold ≅ 72 sites) for model validation using the 4-fold cross-validation schemes. Read More

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Does Lake Balaton affected by pollution? Assessment through surface water quality monitoring by using different assessment methods.

Saudi J Biol Sci 2021 Sep 24;28(9):5250-5260. Epub 2021 May 24.

Research Centre for Biochemical, Environmental and Chemical Engineering, Sustainability Solutions Research Lab, University of Pannonia, Egyetem str. 10, H-8200 Veszprém, Hungary.

In order to maintain a good environmental status of surface waters, an assessment of water quality carried out at specific intervals to monitor the changes of water quality in function of time. Human knowledge and experience are currently focused on using assessment methods, especially the integration of multiple constraining factors and considering them in conjugation with the correct decision-making process concerning the environment. When surface water is highly exposed to human activities, either from recreational or economic activity, the degree of vulnerability is high, and the quality of surface water is highly compromised. Read More

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September 2021

Evidence for coupled iron and nitrate reduction in the surface waters of Jiaozhou Bay.

J Environ Sci (China) 2021 Oct 1;108:70-83. Epub 2021 Mar 1.

College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China.

Iron and nitrate (NO) are dominant physiologically required nutrients for phytoplankton growth, and iron may also play a key role in the marine nitrogen cycle. In this study, we investigated the temporal and spatial distributions of dissolved iron (DFe) and Fe(II) in the surface waters of Jiaozhou Bay (JZB) from April 2 to July 26, 2017. High concentrations of DFe and Fe(II) predominantly occurred in nearshore and estuarine stations and concentrations were generally higher in April and May. Read More

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October 2021

Characterization of toxin-producing strains of Dinophysis spp. (Dinophyceae) isolated from French coastal waters, with a particular focus on the D. acuminata-complex.

Harmful Algae 2021 Jul 29;107:101974. Epub 2021 Jan 29.

Ifremer, LITTORAL, Laboratoire Environnement Ressources de Bretagne Occidentale, Station de Biologie Marine de Concarneau, 29900 Concarneau, France.

Dinoflagellates of the genus Dinophysis are the most prominent producers of Diarrhetic Shellfish Poisoning (DSP) toxins which have an impact on public health and on marine aquaculture worldwide. In particular, Dinophysis acuminata has been reported as the major DSP agent in Western Europe. Still, its contribution to DSP events in the regions of the English Channel and the Atlantic coast of France, and the role of the others species of the Dinophysis community in these areas are not as clear. Read More

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Circulating Exosomal MicroRNA Profiles Associated with Acute Soft Tissue Injury.

Cell J 2021 Sep 29;23(4):474-484. Epub 2021 Aug 29.

Physical Education Department, Hohai University, Nanjing, Jiangsu, China. Email:

Objective: This study aimed to characterize the circulating exosomal microRNA (miRNA) profiles associated with acute soft tissue injury.

Materials And Methods: In this experimental study, a total of 12 rats were randomly divided into control group and model group (n=6 for each group). The rats in the model group were used to establish an acute soft tissue injury following the mechanical injury of the leg. Read More

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September 2021

Quantitative PCR assay for the detection of Aedes vigilax in mosquito trap collections containing large numbers of morphologically similar species and phylogenetic analysis of specimens collected in Victoria, Australia.

Parasit Vectors 2021 Aug 28;14(1):434. Epub 2021 Aug 28.

Agriculture Victoria Research, AgriBio Centre for AgriBioscience, Bundoora, Victoria, Australia.

Background: Aedes vigilax is one of the most significant arbovirus vector and pest species in Australia's coastal regions. Occurring in multiple countries, this mosquito species occurs as a species complex which has been separated into three clades with two detected in Australia. Until recently, Ae. Read More

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Spatial and Temporal Patterns of Ross River Virus in Queensland, 2001-2020.

Trop Med Infect Dis 2021 Aug 3;6(3). Epub 2021 Aug 3.

Institute for Health and Biomedical Innovation, School of Biomedical Sciences, Queensland University of Technology, Kelvin Grove, QLD 4059, Australia.

Ross River virus (RRV), the most common human arbovirus infection in Australia, causes significant morbidity and substantial medical costs. About half of Australian cases occur in Queensland. We describe the spatial and temporal patterns of RRV disease in Queensland over the past two decades. Read More

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Ask the Locals: A Community-Informed Analysis of Perceived Marine Environment Quality Over Time in Palawan, Philippines.

Front Psychol 2021 10;12:661810. Epub 2021 Aug 10.

School of Psychology, University of Plymouth, Plymouth, United Kingdom.

Despite the potentially huge contributions that coastal communities might make in marine resource management and sustainability, their participation in such efforts have only been recognized recently, particularly in Southeast Asia. Involving community perceptions can offer new insights for policy makers and resource managers and can elicit strong commitment and support from the communities themselves. This article aims to understand the perceptions of coastal communities of local environmental issues, specifically how these have developed over time, to understand the expectations and perceptions of trends. Read More

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Vulnerability Assessment of Pelagic Sharks in the Western North Pacific by Using an Integrated Ecological Risk Assessment.

Animals (Basel) 2021 Jul 21;11(8). Epub 2021 Jul 21.

George Chen Shark Research Center, National Taiwan Ocean University, Keelung 20224, Taiwan.

The vulnerability of 11 pelagic shark species caught by the Taiwanese coastal and offshore longline fisheries in the western North Pacific were assessed by an ecological risk assessment (ERA) and 10 of the 11 species was assessed by using an integrated ERA developed in this study. The intrinsic rate of population growth was used to estimate the productivity of sharks, and the susceptibility of sharks was estimated by the multiplication of the catchability, selectivity, and post-capture mortality. Three indices namely, the IUCN Red List category, the body weight variation trend, and the inflection point of population growth curve coupled with ERA were used to conduct an integrated ERA. Read More

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