37 documents found, page 1 of 4
Optimization and validation of a micro–QuEChERS method for phthalates detection...
Sambolino, Annalisa; Rodriguez, Marta; De la Fuente, Jesus; Arbelo, Manuel; Fernández, Antonio; Kaufmann, Manfred; Cordeiro, Nereida; Dinis, AnaIn this study, an innovative method was developed to detect and quantify phthalates in fresh cetacean blubber. An adaptation of the ammonium formate QuEChERS method was used and adapted as a micro-extraction for small quantities of samples. Significantly, this technique utilized minimal quantities of reagents and salts, with the additional implementation of rigorous Quality Assurance/Quality Control protocols t...
Microplastic ingestion and plastic additive detection in pelagic squid and fish...
Sambolino, Annalisa; Iniguez, Eva; Herrera, Inma; Kaufmann, Manfred; Dinis, Ana; Cordeiro, Nereida; Sambolino, Annalisa; Iñiguez Santamaría, EvaThe ubiquitous presence of microplastics (MPs) in the ocean represents a potential threat to marine organisms, with poorly understood long-term adverse effects, including exposure to plastic additives. The present study investigated the ingestion of MPs in two epipelagic fish species (Trachurus picturatus and Scomber colias) and three pelagic squid spe cies (Loligo vulgaris, Ommastrephes caroli and Sthenoteuthi...
Microplastics reduce microalgal biomass by decreasing single-cell weight: the b...
Mendonça, Ivana; Cunha, César; Kaufmann, Manfred; Faria, Marisa; Cordeiro, NereidaMicroplastics (MPs) are a widespread environmental threat, especially to aquatic and urban systems. Water quality is vital for biomass production in microalgal-based industries. Here, industrially relevant microalgae Tetraselmis suecica, Scenedesmus armatus, and Nannochloropsis gaditana were exposed to PS- and PE-MPs (polystyrene and polyethylene, re spectively – 10-20 μm) contaminated waters (5 and 10 mg/L). F...
Unraveling site fidelity and residency patterns of sperm whales in the insular ...
Ferreira, Rita; Steiner, Lisa; Martín, Vidal; Fusar-Poli, Francesca; Dinis, Ana; Kaufmann, Manfred; Fernandez, Marc; Alves, Filipe M. A.Knowledge of the distribution and residency of pelagic marine megafauna, particularly deep-diving species, is scarce due to their high mobility over difficult-to-access oceanic areas and long periods underwater. However, the threatened status of many of these species, such as the sperm whale Physeter macrocephalus, increases the need to obtain quantitative data to support conservation measures. In the warm temp...
A baseline for prioritizing the conservation of the threatened seagrass Cymodoc...
Ribeiro, Cláudia; Neves, Pedro; Kaufmann, Manfred; Araújo, Ricardo; Riera, RodrigoSeagrasses are experiencing fragmentation and regression globally; thus, protection and recovery of meadows are a preservation priority. However, conservation actions must consider inherent regional conditions, since certain coastal areas are not suitable for the settlement of extensive meadows. Likewise, small oceanic archipelagos are not always able to fulfil the habitat requirements of seagrass habitats but ...
Seasonal variation in microplastics and zooplankton abundances and characterist...
Sambolino, Annalisa; Herrera, Inma; Álvarez, Soledad; Rosa, Alexandra; Alves, Filipe; Canning-Clode, João; Cordeiro, Nereida; Dinis, AnaThe ingestion of microplastics (MPs - plastic particles <5 mm) by planktivorous organisms represents a signif icant threat to marine food webs. To investigate how seasonality might affect plastic intake in oceanic islands' ecosystems, relative abundances and composition of MPs and mesozooplankton samples collected off Madeira Island (NE Atlantic) between February 2019 and January 2020 were analysed. MPs were fo...
Bacterial cellulose biopolymers: the sustainable solution to water-polluting mi...
Faria, Marisa; Cunha, César; Gomes, Madalena; Mendonça, Ivana; Kaufmann, Manfred; Ferreira, Artur; Cordeiro, NereidaMicroplastics (MPs) pollution has become one of our time’s most consequential issue. These micropolymeric particles are ubiquitously distributed across all natural and urban ecosystems. Current filtration systems in wastewater treatment plants (WWTPs) rely on non-biodegradable fossil-based polymeric filters whose mainte nance procedures are environmentally damaging and unsustainable. Following the need to devel...
The collapse of marine forests: drastic reduction in populations of the family ...
Bernal-Ibáñez, Alejandro; Gestoso, Ignacio; Wirtz, Peter; Kaufmann, Manfred; Serrao, Ester; Canning-Clode, João; Cacabelos, EvaSpecies of the genera Cystoseira, Ericaria, Gongolaria, and Sargassum (family Sargassaceae) are key components of the Mediterranean-Atlantic marine forests, essential for biodiversity and ecosystem functioning. Populations of these foundational species are particularly vulnerable to anthropogenic impacts, likely to be intensified under future scenarios of climate change. The decline and even disappearance of th...
The collapse of marine forests: drastic reduction in populations of the family ...
Bernal-Ibáñez, Alejandro; Gestoso, Ignacio; Wirtz, Peter; Kaufmann, Manfred; Serrão, Ester A.; Canning-Clode, João; Cacabelos, EvaSpecies of the genera Cystoseira, Ericaria, Gongolaria, and Sargassum (family Sargassaceae) are key components of the Mediterranean-Atlantic marine forests, essential for biodiversity and ecosystem functioning. Populations of these foundational species are particularly vulnerable to anthropogenic impacts, likely to be intensified under future scenarios of climate change. The decline and even disappearance of th...
Characterization of the coccolithophore community off Cabo Verde archipelago, i...
Narciso, Áurea; Javidpour, Jamileh; Chi, Xupeng; Cachão, Mário; Kaufmann, ManfredA systematic investigation of the extant coccolithophore community around Cabo Verde archipelago was per formed during the cruise MSM49 of RV Maria S. Merian, which took place in the late fall of 2015. The description of the spatial and vertical distributions of coccolithophores was based on a survey performed to the north, east and south of Cabo Verde archipelago, between the surface and 150 m water depth. The...