Abdul-Salam F. Juhmani

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• Doctor of Philosophy
• Professor (Assistant) at Hashemite University

Microplastic (MP) pollution poses a global concern, especially for benthic invertebrates. This one-month study investigated the accumulation of small MP polymers (polypropylene and polyester resin, 3-500 μm, 250 μg L − 1) in benthic invertebrates and on one alga species. Results revealed species-specific preferences for MP size and type, driven by...

Microplastic (MP) pollution poses a global concern, especially for benthic invertebrates. This one-month study investigated the accumulation of small MP polymers (polypropylene and polyester resin, 3-500 μm, 250 μg L − 1) in benthic invertebrates and on one alga species. Results revealed species-specific preferences for MP size and type, driven by...

Seagrasses play a vital role in marine ecosystems worldwide. However, until recently these ecosystems were experiencing declines due to various global and local threats. In response to this issue, initiatives have been launched to combat seagrass loss by addressing local and regional major stressors and actively engaging in restoration efforts by t...

Despite the notable increase of shopping centers and supermarkets in Oman during the last recent years, along with the increasing number of reported incidents of inflammation of the stomach and intestines (gastroenteritis), our knowledge about the microbiology of shopping carts in this region and their role as source for transmission of enteric bac...

The trophic evolution of the Venice lagoon was analyzed by studying the particulate collected monthly with sedimentation traps in many areas of the Venice lagoon since 1989, and at Goro in 2018–2019. Sedimentation rates were strongly related to the presence of macrophytes, which reduced sediment resuspension, and to anthropogenic pressures, such as...

The surface of seaweed serves as an interactive face between the seaweed and the surrounding environment. Microorganisms associated with seaweed modulate diverse functions, including morphological development, consumption of organic matter, and defence. These microbial communities experience changes in response to environmental perturbations and se...

The in-field protein production of four macroalgae (Gracilariopsis vermiculophylla, Gracilaria gracilis, Gracilariopsis longissima, Ulva australis) and three seagrasses (Cymodocea nodosa, Zostera marina, Zostera noltei) was investigated in four transitional water systems over one year. The protein content in macroalgae ranged from 1.0 to 25.1% and...

The global continued decline in coral reefs is intensifying the need to understand the response of corals to local environmental stressors. Coral-associated bacterial communities have been suggested to have a swift response to environmental pollutants. This study aims to determine the variation in the bacterial communities associated with the mucus...

In the last decade, the Venice Lagoon showed a significant environmental recovery that changed the assemblages of macroalgal and aquatic angiosperm dominant species and significantly increased the primary production. The decreasing of anthropogenic impacts, such as eutrophication and clam harvesting, favored a strong reduction of Ulvaceae, replaced...

Marine macrophytes are hypothesized to be a major temporary sink for microplastics. In this study, microplastic contamination was investigated in 15 macroalgal species and one seagrass from different sites in two lagoons of the northern Adriatic Sea: the Goro lagoon and the Venice lagoon. A high percentage (94%) of the macrophyte samples contained...

The Lagoon of Venice covers a surface area of about 550 km2, roughly 80% of which is covered by water, about 10% by salt marshes and 5% by islands. The mean depth of the water column is about 1.2 m, with only 5% of the lagoon deeper than 5 m. It is connected to the Adriatic Sea through three inlets (Lido, Malamocco, Chioggia), which allow tidal flu...

The analysis of nutrient concentrations in surface sediments is a reliable tool for assessing the trophic status of a water body. Nitrogen and phosphorus concentrations are strongly related to the sediment characteristics but are mainly driven by anthropogenic impacts. The results of the determination of total nitrogen and total inorganic and organ...

Transitional water systems (TWSs) may be threatened by various metals originating from increased agricultural, industrial activities, or urban effluents. Macroalgae are one of the biological quality elements used to monitor and assess the health status of TWS due to their structural and functional key role in marine ecosystems. Here, metal accumula...

The paper reports the results obtained after 4 years of aquatic angiosperm transplants in areas of the Venice Lagoon (North Adriatic Sea, Mediterranean) where meadows almost disappeared due to eutrophication, pollution and overexploitation of clam resources. The project LIFE12 NAT/IT/000331-SeResto, funded by the European Union, allowed to recoloni...

Punica granatum L. (pomegranate) is an ancient fruit that is widely consumed as fresh fruit and juice. In vitro and in vivo studies have demonstrated that this fruit possesses antioxidant, antidiabetic, hypolipidemic, antibacterial, anti-inflammatory, and antiviral activities. In this study, the antimicrobial activities of two types of cultivars (s...

River ecosystems are one of the dynamic components of the terrestrial carbon cycle that provide a crucial function in ecosystem processes and high value to ecosystem services. A large amount of carbon is transported from terrestrial to the ocean through river flows. In order to evaluate the contribution of Sile River ecosystem to the global carbon...

M.M.); mnc@unife.it (C.M.); sfrndr@unife.it (A.A.S.) Abstract: The concentrations of inorganic, organic and total carbon, and some sedimentary parameters (sediment density, fines, pH, and shell fragments), have been analyzed in surface sediments of the Venice Lagoon since 1987. Environmental scenarios, characterized by different anthropogenic impac...

Seaweeds are a group of essential photosynthetic organisms that harbor a rich diversity of associated microbial communities with substantial functions related to host health and defense. Environmental and anthropogenic stressors may disrupt the microbial communities and their metabolic activity, leading to host physiological alterations that negati...

Since 2011, according to the requirements of the European Water Framework Directive (WFD 2000/60/EC), the Regional Agency for Environmental Protection of the Veneto Region (ARPAV) activated multi-annual (2011, 2014 and 2018) monitoring programs to determinate the ecological and the trophic status of the whole Venice Lagoon by monitoring both the bi...

Coral-associated microbial communities contribute to a wide variety of useful roles regarding the their host, and therefore, the arrangement of the general microbiome network can emphatically impact coral wellbeing and survival. Various pollution sources can interfere and disrupt the microbial relationship with corals. Here, we adopted the bacteria...

Since the 1960s, the Venice Lagoon has suffered a sharp aquatic plant constriction due to eutrophication, pollution, and clam fishing. Those anthropogenic impacts began to decline during the 2010s, and since then the ecological status of the lagoon has improved, but in many choked areas no plant recolonization has been recorded due to the lack of s...

Centroceras Kützing is a small red algal genus with 18 currently accepted species (Guiry & Guiry 2019), characterized by simple filamentous thalli with erect axes arising from a prostrate system and di-trichotomous branching (Hommersand 1963). The characters used to distinguish species are primarily cortical filament morphology: shape and number of...

The acute toxicity of citrate capped silver nanoparticles (AgNP) and silver nitrate was evaluated on the marine macroalga Ulva rigida C. Agardh (1823). Silver bioaccumulation, ultrastructural chloroplast damages verified by TEM microscopy, inhibition of primary production, neutral lipid production and oxidative stress were observed after 24 h of ex...

A preliminary study of seasonal variations of carbon, nitrogen and phosphorous contents in two seagrass species, Zostera marina and Zostera noltei is presented. Six samples for each species were taken using a sampler (0.0314 m 2) in four campaigns (August and November 2017, March and May 2018). Leaves and roots were then separated and analyzed by m...

Introduction: Detection of new Actinobacteria is significant to discover new antibiotics because development of new antibiotics is connected to the characterization of novel bacterial taxa. This study has focused on the identification and isolation of antibiotic-producing Actinobacteria from the sediment and the water of Ma'in thermal springs (48-5...

Touristic and commercial shipping traffic, the import of fish products and aquaculture activities are the most important vectors for the introduction of non-indigenous species (NIS) in the Mediterranean Sea. In this context, the Venice Lagoon (North Adriatic Sea) is considered a hotspot of NIS introductions. Among macroalgae, identification of thes...

Bacillus or Bacillus-related genera were the most frequently documented isolates from Jordanian hot springs in several earlier studies based on culture-dependent methods. This study aimed to review the abundance and composition of the genus Bacillus in Jordanian hot springs (Ma'in and Afra springs) using a culture-independent approach by Illumina M...

Increase in societal demand for sustainability has resulted in attention to sustainable manufacturing. Although an attractive goal to most, executives face difficulties in implementing; sustainable manufacturing due to the necessity of balancing social, economic and environmental; outcomes associated with the implementation of different manufacturi...

The aim of this work was to evaluate the implementation of the oxidative stress biomarker (LPO) for the assessment and monitoring of the ecological status of macrophyte in relation to potentially toxic elements (PTEs) in the Gulf of Aqaba (Jordan) and the Lagoon of Venice (Italy). Results showed that the anthropic influences related to PTEs of the...

A culture-independent approach was utilized in this study to reveal the microbial diversity in Jordanian hot springs represented by Ma'in and Afra hot springs. Water samples from Ma'in and Afra hot springs were collected in June 2015. The in situ temperature of water samples range was 38–59°C and the pH range was 7.4–8.4. The metagenome was extract...

Macrophytes play a fundamental role in structuring communities in aquatic environments. They contribute to maintaining the ecosystem services. Unfortunately, nowadays, they are threatened by different sources of pollution. The release of such potentially toxic elements (PTEs) to the environment may influence negatively the ecosystem health, which o...

Ma’in hot springs are known as sites of balneotherapy. However, little is known about their microbiology and chemistry. In this study, we aim at evaluating the antimicrobial activity of Ma’in hot-springs water (MHSW), studying its microbiology, and determining its physicochemical properties including the heavy metals content. Therefore, water sampl...