600 results match your criteria: "CESAM - Centre for Environmental and Marine Studies[Affiliation]"

Background: Sustainable production and consumption are two important issues, which mutually interact. Whereas individuals have little direct influence on the former, they can play a key role on the latter. This paper describes the subject matter of sustainable consumption and outlines its key features.

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Updated Trends on the Biodiscovery of New Marine Natural Products from Invertebrates.

Mar Drugs

June 2022

ECOMARE, CESAM-Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal.

From 1990-2019, a total of 15,442 New Marine Natural Products from Invertebrates (NMNPIs) were reported. The 2010s saw the most prolific decade of biodiscovery, with 5630 NMNPIs recorded. The phyla that contributed most biomolecules were the Porifera (sponges) (47.

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Combined effects of polyethylene microplastics and natural stressors on Chironomus riparius life-history traits.

Environ Res

October 2022

CESAM - Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.

Several studies have shown that ingestion of microplastics causes adverse effects in aquatic organisms, including sediment-dwelling invertebrates. Most studies focus on evaluating the effects of plastic particles alone without testing the mediating effects of different natural stressors and thus lacking realistic exposure scenarios. The present study addresses the interactive effects of exposure to polyethylene microplastics (PE-MPs; 2.

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Metal(oid)s accumulation (Hg and As) and their biochemical effects in Halimione portulacoides (Ria de Aveiro, Portugal).

Mar Pollut Bull

July 2022

CESAM - Centre for Environmental and Marine Studies, Biology Department, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.

For decades, mercury (Hg) and arsenic (As) were discharged into the Aveiro Lagoon. This study was designed to assess the natural attenuation process evolution by: (1) evaluating Hg and As concentration in sediments and in Halimione portulacoides, and assess the long-term evolution of a historically contaminated salt-marsh system; (2) evaluating the stress levels imposed by Hg and As, and the mechanisms triggered to squash oxidative damage. Concentrations of Hg and As in sediments varied considerably between sampling locations.

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This paper provides an overview of how food production influences climate change and also illustrates the impact of climate change on food production. To perform such an overview, the (inter)link between different parts of the food supply chain continuum (agriculture production, livestock farming, food processing, food transport and storing, retail food, and disposal of food waste) and climate change has been investigated through a bibliometric analysis. Besides UN Sustainable Development Goal (SDG) 13, associated with climate change, other SDGs that are associated with this overview are goals #1, #2, #3, #6, #7, #12, and #15.

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Mercury is a heavy metal, which is pervasive and persistent in the marine environment. It bioaccumulates within organisms and biomagnifies in the marine food chain. Due to its high toxicity, mercury contamination is a major concern for wildlife and human health.

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Understanding the nitrolipidome: From chemistry to mass spectrometry and biological significance of modified complex lipids.

Prog Lipid Res

July 2022

Mass Spectrometry Center, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal; CESAM-Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal. Electronic address:

Complex lipids, phospholipids (PLs) and triacylglycerides (TAGs), are prone to modifications induced by reactive nitrated species and reactive oxygen species, generating a range of nitrated, nitrosated or nitroxidized derivatives, as nitro PLs and nitro TAGs. These modified lipids (epilipids) have been reported in vitro and in vivo using lipidomics approaches. However, their detection in living systems remains a challenge hampered by its complexity, high structural diversity, and low abundance.

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Chemical characterization of riverine sediments affected by wastewater treatment plant effluent discharge.

Sci Total Environ

September 2022

CESAM - Centre for Environmental and Marine Studies, University of Aveiro, Portugal; Department of Biology, University of Aveiro, Portugal. Electronic address:

This study was aimed at assessing the contribution of wastewater treatment effluents to the contamination profile of the sediments of receiving waterways. Three wastewater treatment plants (WWTP) were addressed, encompassing different population equivalent sizes, urbanization degrees and treatment methods translating differences in expected contamination patterns. Within each WWTP system, the assessment targeted the effluent and sediment samples collected upstream and downstream the effluent discharge point; contaminants belonging to several concerning chemical classes (metals and metalloids; pesticides; pharmaceuticals and personal care products, PPCPs; and polycyclic aromatic hydrocarbons, PAHs) were quantified both in effluent and sediment samples.

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Every day, people use personal care products containing UV filters. Although their use initially showed a protective role, toxicity is a concern for human health as several UV filters are endocrine-disrupting chemicals (EDCs). Exposure to EDCs may induce cardiovascular diseases and can affect the health of sensitive people, such as pregnant women.

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Advancing conservation geography.

Trends Ecol Evol

August 2022

Department of Geosciences and Geography, University of Helsinki, FI-00014 Helsinki, Finland; Helsinki Institute of Sustainability Science, University of Helsinki, FI-00014 Helsinki, Finland.

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Evaluation of future estuarine floods in a sea level rise context.

Sci Rep

May 2022

CESAM-Centre for Environmental and Marine Studies, Department of Physics, University of Aveiro, 3810-193, Aveiro, Portugal.

Reliable predictions of future inundation extent within estuaries require a precise evaluation of future extreme sea levels and the application of accurate numerical models that account for the physical processes driving estuarine hydrodynamics. In this study, a methodology that integrates the estimation of local extreme sea levels with high-resolution numerical modeling was applied to assess the future inundation extent in five estuarine systems located on the Portuguese Coast. The main findings obtained were compared with available results from the popular bathtub approach, that disregards the physical processes driving estuarine hydrodynamics and therefore provide imprecise predictions of inundation extent and associated socio-economic impacts.

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The veined squid, Loligo forbesii Steenstrup, 1856, occurs at the European Shelf areas including the Azores and represents a valuable resource for the European commercial fishery in the North East Atlantic. However, very little is known about its population structure and phylogeography. This lack of knowledge also impedes the development of sustainable fishery management for this species.

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The Neotropical region hosts 4225 freshwater fish species, ranking first among the world's most diverse regions for freshwater fishes. Our NEOTROPICAL FRESHWATER FISHES data set is the first to produce a large-scale Neotropical freshwater fish inventory, covering the entire Neotropical region from Mexico and the Caribbean in the north to the southern limits in Argentina, Paraguay, Chile, and Uruguay. We compiled 185,787 distribution records, with unique georeferenced coordinates, for the 4225 species, represented by occurrence and abundance data.

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Land application of sewage sludge containing increasing levels of silver nanoparticles (AgNPs) raises concerns about the risk for plant exposure. This study compared the uptake kinetics and distribution of Ag in Brassica rapa seedlings grown in Lufa 2.2 natural soil spiked with 20 nm AgS NPs, with those from 3 to 8 nm AgNPs, 50 nm AgNPs and AgNO exposures (10 mg Ag/kg dry soil).

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Applications of lipidomics in marine organisms: progress, challenges and future perspectives.

Mol Omics

June 2022

CESAM-Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro, 3810-193, Portugal.

Marine ecosystems comprise a high diversity of life forms, such as algae, invertebrates, and vertebrates. These organisms have adapted their physiology according to the conditions of the environments in which they inhabit. In the last few years, the study of lipids of marine origin has received increasing attention due to the diversity of their composition.

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Olive seeds have been considered as a new nutritionally healthy food supplement. They are rich in monounsaturated n-9 and essential polyunsaturated n-6 lipids. However, little is known about their polar lipids, potentially bioactive and chemical identity markers for olive pulp and oil.

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Toxicity of historically metal(loid)-contaminated soils to Folsomia candida under the influence of climate change alterations.

Environ Pollut

July 2022

CESAM-Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Portugal; Department of Agricultural Engineering of the E.T.S.I.A. & Soil Ecology and Biotechnology Unit of the Institute of Plant Biotechnology, Technical University of Cartagena, 30203 Cartagena, Spain.

Global warming is drastically altering the climate conditions of our planet. Soils will be among the most affected components of terrestrial ecosystems, especially in contaminated areas. In this study we investigated if changes in climate conditions (air temperature and soil moisture) affect the toxicity of historically metal(loid)-contaminated soils to the invertebrate Folsomia candida, followed by an assessment of its recovery capacity.

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Article Synopsis
  • Trematodes, particularly metacercaria, are prevalent in coastal waters and can affect cockle hosts, although their overall impact on host fitness is typically low.
  • The study reviewed previous literature, provided molecular signatures of the trematode species, and analyzed a 20-year database of cockle monitoring to understand infection patterns.
  • Findings showed that trematode infection intensity increased with the size/age of cockles, varied with seasons, and indicated potential risks to cockle population dynamics due to the effects of these parasites, alongside highlighting the need for better identification methods.
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Silver nanoparticles (AgNPs) are applied in many products as antimicrobial agents and can be found in the environment. In this study, the uptake and elimination kinetics of silver nanoparticles in fish (Carassius auratus), via simultaneous water and dietary exposure, was investigated and compared with ionic silver (AgNO). Silver concentration in the tissues of C.

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Background: The cockle is available to numerous fishing villages in Europe, especially Portugal. In the Ria de Aveiro, there is a lack of a fisheries management program and the need for new ecological studies on cockle biology, ecology, and conservation. We shared local ecological knowledge (LEK) highlights about the cockle-Cerastoderma edule (Linnaeus 1758) in the Ria de Aveiro in favor of adaptive management of this bioresource.

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Article Synopsis
  • * Macroalgae are recognized as a vital marine resource, offering solutions to issues like water pollution, ocean acidification, and climate change.
  • * The review highlights the potential of macroalgae for eco-friendly food sources and industrial applications, emphasizing the need to integrate them into sustainability efforts to avoid ecological harm.
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In recent years, several studies have demonstrated that polyunsaturated fatty acids have strong immunomodulatory properties, altering several functions of macrophages. In the present work, we sought to provide a multi-omic approach combining the analysis of the lipidome, the proteome, and the metabolome of RAW 264.7 macrophages supplemented with phospholipids containing omega-3 (PC 18:0/22:6; ω3-PC) or omega-6 (PC 18:0/20:4; ω6-PC) fatty acids, alone and in the presence of lipopolysaccharide (LPS).

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Plastic pollution and invasive species are recognised as pervasive threats to marine biodiversity. However, despite the extensive on-going research on microplastics' effects in the biota, knowledge on their combination with additional stressors is still limited. This study investigates the effects of polyamide microplastics (PA-MPs, 1 mg/L), alone and in combination with the toxic exudate from the invasive red seaweed (2%), after a 96 h exposure, in the mussel .

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An Overview of Potential Seaweed-Derived Bioactive Compounds for Pharmaceutical Applications.

Mar Drugs

February 2022

University of Coimbra, MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal.

Nowadays, seaweeds are widely involved in biotechnological applications. Due to the variety of bioactive compounds in their composition, species of phylum Ochrophyta, class Phaeophyceae, phylum Rhodophyta and Chlorophyta are valuable for the food, cosmetic, pharmaceutical and nutraceutical industries. Seaweeds have been consumed as whole food since ancient times and used to treat several diseases, even though the mechanisms of action were unknown.

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Ambitious global targets for mangrove and seagrass recovery.

Curr Biol

April 2022

Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, QLD 4222, Australia.

There is an urgent need to halt and reverse loss of mangroves and seagrass to protect and increase the ecosystem services they provide to coastal communities, such as enhancing coastal resilience and contributing to climate stability. Ambitious targets for their recovery can inspire public and private investment in conservation, but the expected outcomes of different protection and restoration strategies are unclear. We estimated potential recovery of mangroves and seagrass through gains in ecosystem extent to the year 2070 under a range of protection and restoration strategies implemented until the year 2050.

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