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The prevalence of neurodegenerative disease (ND) is increasing, partly owing to extensions in lifespan, with a larger percentage of members living to an older age, but the ND aetiology and pathogenesis are not fully understood, and effective treatments are still lacking. Neurodegenerative diseases such as Alzheimer’s disease, Parkinson’s disease, and amyotrophic lateral sclerosis are generally thought to progress as a consequence of genetic susceptibility and environmental influences. Up to now, several environmental triggers have been associated with NDs, and recent studies suggest that some cyanotoxins, produced by cyanobacteria and acting through a variety of molecular mechanisms, are highly neurotoxic, although their roles in neuropathy and particularly in NDs are still controversial. In this review, we summarize the most relevant and recent evidence that points at cyanotoxins as environmental triggers in NDs development.
Paola Sini; Thi Bang Chau Dang; Milena Fais; Manuela Galioto; Bachisio Mario Padedda; Antonella Lugliè; Ciro Iaccarino; Claudia Crosio. Cyanobacteria, Cyanotoxins, and Neurodegenerative Diseases: Dangerous Liaisons. International Journal of Molecular Sciences 2021, 22, 8726 .
AMA StylePaola Sini, Thi Bang Chau Dang, Milena Fais, Manuela Galioto, Bachisio Mario Padedda, Antonella Lugliè, Ciro Iaccarino, Claudia Crosio. Cyanobacteria, Cyanotoxins, and Neurodegenerative Diseases: Dangerous Liaisons. International Journal of Molecular Sciences. 2021; 22 (16):8726.
Chicago/Turabian StylePaola Sini; Thi Bang Chau Dang; Milena Fais; Manuela Galioto; Bachisio Mario Padedda; Antonella Lugliè; Ciro Iaccarino; Claudia Crosio. 2021. "Cyanobacteria, Cyanotoxins, and Neurodegenerative Diseases: Dangerous Liaisons." International Journal of Molecular Sciences 22, no. 16: 8726.
Fish populations play an active role in the maintenance of aquatic ecosystems biodiversity. Their intestinal microbiota and fillet chemistry depend on abiotic and biotic factors of the water environments that they inhabit. The present study investigated the grey mullets’ gut microbiota from a transitional aquatic ecosystem (Santa Giusta Lagoon, Sardinia, Italy) by a multidisciplinary approach which refers the results of (1) gut cultivable microbiota analyses (MA), (2) the trace metal assessment of fish muscle (TM), (3) the physico-chemical water monitoring (PC). MA detected the greatest number of total aerobic heterotrophic bacteria, Enterobacteriaceae and coliforms in Autumn (mean values 1.3 × 105, 2.4 × 104, 1.1 × 104 cfu g−1, respectively) when the accumulated rain and mean values of nutrients (reactive phosphorous and silica) were the highest. Marine bacteria were more numerous in Summer (mean value 7.4 × 105 cfu g−1) when the highest mean values of water temperature and salinity were registered. The gut bacteria were identified as Pseudomonas spp. (64%), Aeromonas spp. (17%), Ochrobactrum pseudogrignonense (10%), Providencia spp. (5%), Enterobacter ludwigii (2%) and Kocuria tytonicola (2%). TM showed that Ca, Na, B and Ni increased their concentrations in Winter while maxima of P, Zn, Cu and Fe were found in muscles of fish sampled in Summer. This study highlighted that the fish intestinal microbiota and metal composition of the fillet reflected the seasonal aquatic environmental variability.
Rosanna Floris; Gabriele Sanna; Cecilia Satta; Carlo Piga; Francesco Sanna; Antonella Lugliè; Nicola Fois. Intestinal Microbial Ecology and Fillet Metal Chemistry of Wild Grey Mullets Reflect the Variability of the Aquatic Environment in a Western Mediterranean Coastal Lagoon (Santa Giusta, Sardinia, Italy). Water 2021, 13, 879 .
AMA StyleRosanna Floris, Gabriele Sanna, Cecilia Satta, Carlo Piga, Francesco Sanna, Antonella Lugliè, Nicola Fois. Intestinal Microbial Ecology and Fillet Metal Chemistry of Wild Grey Mullets Reflect the Variability of the Aquatic Environment in a Western Mediterranean Coastal Lagoon (Santa Giusta, Sardinia, Italy). Water. 2021; 13 (6):879.
Chicago/Turabian StyleRosanna Floris; Gabriele Sanna; Cecilia Satta; Carlo Piga; Francesco Sanna; Antonella Lugliè; Nicola Fois. 2021. "Intestinal Microbial Ecology and Fillet Metal Chemistry of Wild Grey Mullets Reflect the Variability of the Aquatic Environment in a Western Mediterranean Coastal Lagoon (Santa Giusta, Sardinia, Italy)." Water 13, no. 6: 879.
In this article, we provide a general overview of eutrophication in aquatic ecosystems, with a focus on the Mediterranean Sea and two Sardinian lagoons (western Mediterranean Sea, Italy), as case studies. In the Cabras Lagoon, we assessed the nutrient budget and fluxes using the biogeochemical Land–Ocean Interaction Coastal Zone model. High nutrient and chlorophyll‐a concentrations indicated eutrophic conditions, summer being the most critical season as related to the decrease in riverine water supply, the increase in water evaporation and a concurrent isolation of the lagoon from the adjacent sea. In the Calich Lagoon, the eutrophic conditions, assessed during 2008–2015, seemed to be attenuated by a good water exchange with the sea, yet potential harmful phytoplankton species were found. Overall, the present study shows how Mediterranean coastal lagoons are strongly influenced by both terrestrial and marine ecosystems. Eutrophication is one of the main forms of environmental degradation of aquatic ecosystems, and in coastal lagoons, this is the consequence of multiple pressures, which have led to significant losses of major ecosystem goods and services, such as aquaculture, fishery, and tourism. Good practices and landscape management are urgently needed to prevent further deterioration of these sensible ecosystems.
Bachisio M. Padedda; Silvia Pulina; Cecilia T. Satta; Antonella Lugliè; Paolo Magni. Eutrophication and Nutrient Fluxes in Mediterranean Coastal Lagoons. Encyclopedia of Water 2019, 1 -16.
AMA StyleBachisio M. Padedda, Silvia Pulina, Cecilia T. Satta, Antonella Lugliè, Paolo Magni. Eutrophication and Nutrient Fluxes in Mediterranean Coastal Lagoons. Encyclopedia of Water. 2019; ():1-16.
Chicago/Turabian StyleBachisio M. Padedda; Silvia Pulina; Cecilia T. Satta; Antonella Lugliè; Paolo Magni. 2019. "Eutrophication and Nutrient Fluxes in Mediterranean Coastal Lagoons." Encyclopedia of Water , no. : 1-16.
Karst ecosystems are considered as priority environments for the protection of biodiversity on a global scale. This study provides a first comparative analysis of epilithic diatom flora from karst springs in two Mediterranean geographic areas (Spain and Italy) with contrasting characteristics (islands vs mainland). We investigated twenty-three springs with different anthropogenic impact levels once in the winter season between 2007 and 2017 (N = 23). A total of 176 diatom taxa (56 genera) were found of which 101 (44 genera) were observed in single sites. A general good biotic integrity was revealed by structural indices (species richness, diversity and evenness). However, crenophilous species were generally present and abundant in less impacted springs. Comparing islands and mainland, significant differences were found in species composition and diversity (H’) based on multivariate analyses (global R = 0.610; p = 0.001) and t-test (t = 2.304; p = 0.031). Discharge and Cl− were the most significant variables in determining diatom assemblages. Our results confirm the role of springs as multiple ecotones and refuges for rare species and suggest that the geographic insularity may be an important factor in maintaining diatom biodiversity.
Giuseppina G. Lai; Sara Burato; Bachisio M. Padedda; Raffaella Zorza; Elisabetta Pizzul; Cristina Delgado; Antonella Lugliè; Marco Cantonati. Diatom Biodiversity in Karst Springs of Mediterranean Geographic Areas with Contrasting Characteristics: Islands vs Mainland. Water 2019, 11, 2602 .
AMA StyleGiuseppina G. Lai, Sara Burato, Bachisio M. Padedda, Raffaella Zorza, Elisabetta Pizzul, Cristina Delgado, Antonella Lugliè, Marco Cantonati. Diatom Biodiversity in Karst Springs of Mediterranean Geographic Areas with Contrasting Characteristics: Islands vs Mainland. Water. 2019; 11 (12):2602.
Chicago/Turabian StyleGiuseppina G. Lai; Sara Burato; Bachisio M. Padedda; Raffaella Zorza; Elisabetta Pizzul; Cristina Delgado; Antonella Lugliè; Marco Cantonati. 2019. "Diatom Biodiversity in Karst Springs of Mediterranean Geographic Areas with Contrasting Characteristics: Islands vs Mainland." Water 11, no. 12: 2602.
Lake surface water temperature (LSWT) is a key parameter to help study the environmental and ecological impacts of climate change. In this work, we measured the LSWT of 1 natural and 23 artificial lakes located on the island of Sardinia in the western Mediterranean, which is a region where changes in climate are projected to have significant impacts. By integrating multi-source and multi-resolution datasets of the Moderate Resolution Imaging Spectroradiometer (MODIS) and Landsat and long-term in situ temperature observations, we detected, measured, and analysed the LSWT trends during the period of 2000–2018 across all the investigated lakes. Methodologically, we demonstrated that a simplified approached based on Planck's equation for Landsat thermal infrared (TIR) data could be a valid alternative to radiative transfer equation retrieval methods for the retrieval of LSWT without loss of accuracy. Moreover, we demonstrated that rescaled and independently validated MOD112A-derived LSWT showed good accuracy, efficiently filled the spatial and temporal gaps in long-term in situ LSWT, and could be used for long-term LSWT trend detection and measurement. All 24 lakes showed an annual warming trend of +0.010 °C/y, warming winter trend of +0.013 °C/y, and cooling summer trend of −0.038 °C/y during the period of 2000–2018. This study demonstrated that the measured trend rates could be explained by and were strongly correlated with the climatology of Italy for the 2000–2018 period. Finally, we demonstrated the key role and the importance of the availability of long-term in situ temperature datasets. The approach used in this study is up-scalable to other medium to low-resolution TIR sensors as well as to other long-term monitoring sites, such as LTER-Italy, LTER-Europe, or ILTER sites.
Salvatore G.P. Virdis; Nooch Soodcharoen; Antonella Lugliè; Bachisio M. Padedda. Estimation of satellite-derived lake water surface temperatures in the western Mediterranean: Integrating multi-source, multi-resolution imagery and a long-term field dataset using a time series approach. Science of The Total Environment 2019, 707, 135567 .
AMA StyleSalvatore G.P. Virdis, Nooch Soodcharoen, Antonella Lugliè, Bachisio M. Padedda. Estimation of satellite-derived lake water surface temperatures in the western Mediterranean: Integrating multi-source, multi-resolution imagery and a long-term field dataset using a time series approach. Science of The Total Environment. 2019; 707 ():135567.
Chicago/Turabian StyleSalvatore G.P. Virdis; Nooch Soodcharoen; Antonella Lugliè; Bachisio M. Padedda. 2019. "Estimation of satellite-derived lake water surface temperatures in the western Mediterranean: Integrating multi-source, multi-resolution imagery and a long-term field dataset using a time series approach." Science of The Total Environment 707, no. : 135567.
Mediterranean karst springs are affected by strong climatic seasonality, with long, dry and hot summers and are increasingly threatened by anthropogenic pressures. In Sardinia (western Mediterranean Sea, Italy), they are largely unexplored and their biocoenoses are mostly unknown. The diatom flora from two substrates (cobbles and macrophytes) in eight springs of different areas of the island was investigated in summer 2016 and winter 2017. A total of 162 diatom taxa (58 genera) were found of which 27 (17 genera) only on cobbles and 26 (18 genera) only on macrophytes. The most abundant species from both substrates were Achnanthidium minutissimum, Amphora indistincta, Amphora pediculus, Cocconeis euglypta, Planothidium frequentissimum, and P. lanceolatum. Overall, 67 taxa (40 genera) were recorded in single sites and some of these taxa showed high affinity with specific environmental conditions. Hydrological stability (water flow permanence), discharge and nutrients were the main environmental factors influencing diatom assemblages. Our results suggest that diatoms can reflect important local factors related to the vulnerability of these spring ecosystems and underline the importance of their preservation both for biodiversity and water quality maintenance.
Giuseppina Grazia Lai; Bachisio Mario Padedda; Luc Ector; Carlos Eduardo Wetzel; Antonella Lugliè; Marco Cantonati. Mediterranean karst springs: diatom biodiversity hotspots under the pressure of hydrological fluctuation and nutrient enrichment. Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology 2019, 154, 673 -684.
AMA StyleGiuseppina Grazia Lai, Bachisio Mario Padedda, Luc Ector, Carlos Eduardo Wetzel, Antonella Lugliè, Marco Cantonati. Mediterranean karst springs: diatom biodiversity hotspots under the pressure of hydrological fluctuation and nutrient enrichment. Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology. 2019; 154 (5):673-684.
Chicago/Turabian StyleGiuseppina Grazia Lai; Bachisio Mario Padedda; Luc Ector; Carlos Eduardo Wetzel; Antonella Lugliè; Marco Cantonati. 2019. "Mediterranean karst springs: diatom biodiversity hotspots under the pressure of hydrological fluctuation and nutrient enrichment." Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology 154, no. 5: 673-684.
Reservoirs are primary water resources for many uses in the Mediterreanean region and need dedicated studies for understanding the complexity of their dynamics particularly vulnerable to local and global stressors. This study focused on phytoplankton variations in relation to seasonal environmental changes on a multiannual time scale (2006–2015) at a Mediterranean eutrophic reservoir (Bidighinzu Lake, Italy) belonging to the Italian, European and International Long Term Ecological Research networks. Phytoplankton cell density, volume and biomass and chlorophyll a concentrations were analysed together with meteo-climatic, hydrological, physical and chemical variables to detect trends and correlations. The period under study was also compared with previous years to assess the presence of significant differences in the environmental and planktonic compartments. Multiannual changes were more pronounced in summer than in the other seasons during the decade under study. The most conspicuous environmental changes were a significant decrease in summer nutrient concentrations in the reservoir and a simultaneous anthropic pressure reduction in the watershed. In addition, the mixing zone and euphotic zone ratio also increased. Multiannual changes in summer phytoplankton composition consisted of an increased density of smaller Bacillariophyceae and Cyanophyceae, which replaced larger species of the same phytoplankton classes. This resulted in opposite trends of total phytoplankton cell density (increasing) and mean phytoplankton cell volume (decreasing) over the study years. The nutrient decrement was statistically the strongest environmental driver of the phytoplankton changes observed in the reservoir. However, the mixing zone and the euphotic zone ratio and water temperature also significantly affected the multiannual phytoplankton variations. Therefore, we conclude that the success of small cell-sized phytoplankton in Bidighinzu Lake was most probably due to the synergic interactions of more environmental forces related to changing anthropic pressures and climate variability. Our results highlight the importance of long-term monitoring of reservoirs in the Mediterranean basin, especially in semi-arid regions where the need and scarcity of high quality water will be further exacerbated due to the global climate change.
Silvia Pulina; Antonella Lugliè; Maria Antonietta Mariani; Marco Sarria; Nicola Sechi; Bachisio Mario Padedda. Multiannual decrement of nutrient concentrations and phytoplankton cell size in a Mediterranean reservoir. Nature Conservation 2019, 34, 163 -191.
AMA StyleSilvia Pulina, Antonella Lugliè, Maria Antonietta Mariani, Marco Sarria, Nicola Sechi, Bachisio Mario Padedda. Multiannual decrement of nutrient concentrations and phytoplankton cell size in a Mediterranean reservoir. Nature Conservation. 2019; 34 ():163-191.
Chicago/Turabian StyleSilvia Pulina; Antonella Lugliè; Maria Antonietta Mariani; Marco Sarria; Nicola Sechi; Bachisio Mario Padedda. 2019. "Multiannual decrement of nutrient concentrations and phytoplankton cell size in a Mediterranean reservoir." Nature Conservation 34, no. : 163-191.
The present Special Issue entitled “Italian Long-Term Ecological Research for understanding ecosystem diversity and functioning. Case studies from aquatic, terrestrial and transitional domains” is the first published collection of studies performed at LTER-Italy sites which address the diversity and dynamics of ecosystems in different domains in responses to natural and anthropogenic forcing.
Maria Grazia Mazzocchi; Lucilla Capotondi; Michele Freppaz; Antonella Lugliè; Alessandro Campanaro. Editorial. Nature Conservation 2019, 34, 1 -8.
AMA StyleMaria Grazia Mazzocchi, Lucilla Capotondi, Michele Freppaz, Antonella Lugliè, Alessandro Campanaro. Editorial. Nature Conservation. 2019; 34 ():1-8.
Chicago/Turabian StyleMaria Grazia Mazzocchi; Lucilla Capotondi; Michele Freppaz; Antonella Lugliè; Alessandro Campanaro. 2019. "Editorial." Nature Conservation 34, no. : 1-8.
Data from five sites of the International Long Term Ecological Research (ILTER) network in the North-Eastern Pacific, Western Arctic Ocean, Northern Baltic Sea, South-Eastern North Sea and in the Western Mediterranean Sea were analyzed by dynamic factor analysis (DFA) to trace common multi-year trends in abundance and composition of phytoplankton, benthic fauna and temperate reef fish. Multiannual trends were related to climate and environmental variables to study interactions. Two common trends in biological responses were detected, with temperature and climate indices as explanatory variables in four of the five LTER sites considered. Only one trend was observed at the fifth site, the Northern Baltic Sea, where no explanatory variables were identified. Our findings revealed quasi-synchronous biological shifts in the different marine ecosystems coincident with the 2000 climatic regime shift and provided evidence on a possible further biological shift around 2010. The observed biological modifications were coupled with abrupt or continuous increase in sea water and air temperature confirming the key-role of temperature in structuring marine communities.
Ingrid Kröncke; Hermann Neumann; Joachim W. Dippner; Sally Holbrook; Thomas Lamy; Robert Miller; Bachisio Mario Padedda; Silvia Pulina; Daniel C. Reed; Marko Reinikainen; Cecilia T. Satta; Nicola Sechi; Thomas Soltwedel; Sanna Suikkanen; Antonella Lugliè. Comparison of biological and ecological long-term trends related to northern hemisphere climate in different marine ecosystems. Nature Conservation 2019, 34, 311 -341.
AMA StyleIngrid Kröncke, Hermann Neumann, Joachim W. Dippner, Sally Holbrook, Thomas Lamy, Robert Miller, Bachisio Mario Padedda, Silvia Pulina, Daniel C. Reed, Marko Reinikainen, Cecilia T. Satta, Nicola Sechi, Thomas Soltwedel, Sanna Suikkanen, Antonella Lugliè. Comparison of biological and ecological long-term trends related to northern hemisphere climate in different marine ecosystems. Nature Conservation. 2019; 34 ():311-341.
Chicago/Turabian StyleIngrid Kröncke; Hermann Neumann; Joachim W. Dippner; Sally Holbrook; Thomas Lamy; Robert Miller; Bachisio Mario Padedda; Silvia Pulina; Daniel C. Reed; Marko Reinikainen; Cecilia T. Satta; Nicola Sechi; Thomas Soltwedel; Sanna Suikkanen; Antonella Lugliè. 2019. "Comparison of biological and ecological long-term trends related to northern hemisphere climate in different marine ecosystems." Nature Conservation 34, no. : 311-341.
Seasonal dynamic of Utermöhl fraction of phytoplankton (UFP, cell size > 3 μm) and picophytoplankton (Pico, cell size < 3 μm) were compared in three eutrophic coastal lagoons located in the same geographical area (Western Mediterranean Sea). Considering data on density, biomass, volume and composition of each size class, we focused on three aspects: i) the contribution of UFP and Pico to total phytoplankton; ii) the responses of UFP and Pico to seasonal variations of selected environmental variables; iii) the identification of the main environmental drivers of UFP and Pico seasonal dynamics. Pico contribution to total phytoplankton density was from 20% to 90%, highlighting the potential importance of Pico also in eutrophic ecosystems. Pico contribution to total phytoplankton biomass was lower, from 9% to 16%. Statistically, temperature resulted the strongest environmental factor controlling both the UFP and Pico seasonal variations in all the studied lagoons. In addition, the role of salinity, water transparency and nutrient concentrations was important in relation to the study site and the size class considered. In this work, the effects of temperature, salinity, transparency and nutrient availability on two different phytoplankton size classes have been described in Mediterranean shallow coastal lagoons for the first time, providing new insight for this ecosystem typology worldwide.
Silvia Pulina; Cecilia Teodora Satta; Bachisio Mario Padedda; Nicola Sechi; Antonella Lugliè. Seasonal variations of phytoplankton size structure in relation to environmental variables in three Mediterranean shallow coastal lagoons. Estuarine, Coastal and Shelf Science 2018, 212, 95 -104.
AMA StyleSilvia Pulina, Cecilia Teodora Satta, Bachisio Mario Padedda, Nicola Sechi, Antonella Lugliè. Seasonal variations of phytoplankton size structure in relation to environmental variables in three Mediterranean shallow coastal lagoons. Estuarine, Coastal and Shelf Science. 2018; 212 ():95-104.
Chicago/Turabian StyleSilvia Pulina; Cecilia Teodora Satta; Bachisio Mario Padedda; Nicola Sechi; Antonella Lugliè. 2018. "Seasonal variations of phytoplankton size structure in relation to environmental variables in three Mediterranean shallow coastal lagoons." Estuarine, Coastal and Shelf Science 212, no. : 95-104.
In Sardinia, Italy, karst springs are strategic water resources and potential hotspots of biodiversity; however, they are understudied, and their communities remain largely unknown. This study was conducted at Sa Vena spring (Su Gologone system) to characterize the diatom communities, to describe their relationships with environmental variables, and to evaluate the impact of an extreme flash flood. High species richness, diversity, and evenness were found both in epiphytic and epilithic assemblages. Statistical analyses showed significant differences between assemblages from the 2 substrates and in assemblages from the same substrate. Differences seem due to the stronger impact of seasonal water level variations and flash flood on macrophytes than on cobbles. Further, epilithic assemblages showed more stable behavior over time, both on an annual (higher resistence) and a multiannual (higher resilience) scale. Alkalinity (p = 0.002) and dissolved oxygen (p = 0.004) explained a significant amount of variance in epiphytic and epilithic assemblages, respectively, according to RDA analyses; however BOD5, negatively correlated with dissolved oxygen, can be the most probable driver of epilithic diatoms. The results suggest the importance of the proper management and preservation of this biotope, both for the high biodiversity and potential vulnerability to climate change.
Giuseppina G. Lai; Luc Ector; Carlos E. Wetzel; Nicola Sechi; Antonella Lugliè; Bachisio M. Padedda. Periphytic diatoms of the Mediterranean karst spring Sa Vena (Su Gologone system, Sardinia, Italy): relationships with environmental variables and effects of an extreme flash flood. Inland Waters 2018, 8, 284 -293.
AMA StyleGiuseppina G. Lai, Luc Ector, Carlos E. Wetzel, Nicola Sechi, Antonella Lugliè, Bachisio M. Padedda. Periphytic diatoms of the Mediterranean karst spring Sa Vena (Su Gologone system, Sardinia, Italy): relationships with environmental variables and effects of an extreme flash flood. Inland Waters. 2018; 8 (3):284-293.
Chicago/Turabian StyleGiuseppina G. Lai; Luc Ector; Carlos E. Wetzel; Nicola Sechi; Antonella Lugliè; Bachisio M. Padedda. 2018. "Periphytic diatoms of the Mediterranean karst spring Sa Vena (Su Gologone system, Sardinia, Italy): relationships with environmental variables and effects of an extreme flash flood." Inland Waters 8, no. 3: 284-293.
A new epilithic Sellaphora (Bacillariophyceae) species from a karst spring of Sardinia is described based on light and scanning electron microscopic observations. Sellaphora gologonica sp. nov. shares similarities with small-celled Sellaphora previously described from Europe and particularly with S. atomoides, S. hafnearae and S. seminulum. Sellaphora gologonica seems to be related to S. seminulum based on the striae patterns and valve ultrastructure, as well as the sinuous raphe system. The main differences between S. gologonica and S. seminulum lies in its valve shape (small, elliptic to oval), not presenting capitated nor protracted apices, as in the later taxon. Sellaphora gologonica was discovered in freshwater habitats with slightly alkaline and oligotrophic waters presenting medium hardness and mineralization, at the smaller water emergence of karst spring system Su Gologone (Sardinia).
Giuseppina G. Lai; Luc Ector; Antonella Lugliè; Nicola Sechi; Carlos E. Wetzel. Sellaphora gologonica sp. nov. (Bacillariophyta, Sellaphoraceae), a new diatom species from a Mediterranean karst spring (Sardinia, Italy). Phytotaxa 2018, 356, 145 -157.
AMA StyleGiuseppina G. Lai, Luc Ector, Antonella Lugliè, Nicola Sechi, Carlos E. Wetzel. Sellaphora gologonica sp. nov. (Bacillariophyta, Sellaphoraceae), a new diatom species from a Mediterranean karst spring (Sardinia, Italy). Phytotaxa. 2018; 356 (2):145-157.
Chicago/Turabian StyleGiuseppina G. Lai; Luc Ector; Antonella Lugliè; Nicola Sechi; Carlos E. Wetzel. 2018. "Sellaphora gologonica sp. nov. (Bacillariophyta, Sellaphoraceae), a new diatom species from a Mediterranean karst spring (Sardinia, Italy)." Phytotaxa 356, no. 2: 145-157.
Giuseppina G. Lai; Bachisio M. Padedda; Carlos E. Wetzel; Marco Cantonati; Nicola Sechi; Antonella Lugliè; Luc Ector. Diatom assemblages from different substrates of the Casteldoria thermo-mineral spring (Northern Sardinia, Italy). Botany Letters 2018, 166, 14 -31.
AMA StyleGiuseppina G. Lai, Bachisio M. Padedda, Carlos E. Wetzel, Marco Cantonati, Nicola Sechi, Antonella Lugliè, Luc Ector. Diatom assemblages from different substrates of the Casteldoria thermo-mineral spring (Northern Sardinia, Italy). Botany Letters. 2018; 166 (1):14-31.
Chicago/Turabian StyleGiuseppina G. Lai; Bachisio M. Padedda; Carlos E. Wetzel; Marco Cantonati; Nicola Sechi; Antonella Lugliè; Luc Ector. 2018. "Diatom assemblages from different substrates of the Casteldoria thermo-mineral spring (Northern Sardinia, Italy)." Botany Letters 166, no. 1: 14-31.
Harmful algal blooms represent a severe issue worldwide. They affect ecosystem functions and related services and goods, with consequences on human health and socio-economic activities. This study reports new data on paralytic shellfish toxins (PSTs) from Sardinia and Sicily (Italy), the largest Mediterranean islands where toxic events, mainly caused by Alexandrium species (Dinophyceae), have been ascertained in mussel farms since the 2000s. The toxicity of the A. minutum, A. tamarense and A. pacificum strains, established from the isolation of vegetative cells and resting cysts, was determined by high performance liquid chromatography (HPLC). The analyses indicated the highest toxicity for A. pacificum strains (total PSTs up to 17.811 fmol cell−1). The PSTs were also assessed in a strain of A. tamarense. The results encourage further investigation to increase the knowledge of toxic species still debated in the Mediterranean. This study also reports new data on microcystins (MCs) and β-N-methylamino-L-alanine (BMAA) from a Sardinian artificial lake (Lake Bidighinzu). The presence of MCs and BMAA was assessed in natural samples and in cell cultures by enzyme-linked immunosorbent assay (ELISA). BMAA positives were found in all the analysed samples with a maximum of 17.84 µg L−1. The obtained results added further information on cyanotoxins in Mediterranean reservoirs, particularly BMAA, which have not yet been thoroughly investigated.
Antonella Lugliè; Maria Grazia Giacobbe; Elena Riccardi; Milena Bruno; Silvia Pigozzi; Maria Antonietta Mariani; Cecilia Teodora Satta; Daniela Stacca; Anna Maria Bazzoni; Tiziana Caddeo; Pasqualina Farina; Bachisio Mario Padedda; Silvia Pulina; Nicola Sechi; Anna Milandri. Paralytic Shellfish Toxins and Cyanotoxins in the Mediterranean: New Data from Sardinia and Sicily (Italy). Microorganisms 2017, 5, 72 .
AMA StyleAntonella Lugliè, Maria Grazia Giacobbe, Elena Riccardi, Milena Bruno, Silvia Pigozzi, Maria Antonietta Mariani, Cecilia Teodora Satta, Daniela Stacca, Anna Maria Bazzoni, Tiziana Caddeo, Pasqualina Farina, Bachisio Mario Padedda, Silvia Pulina, Nicola Sechi, Anna Milandri. Paralytic Shellfish Toxins and Cyanotoxins in the Mediterranean: New Data from Sardinia and Sicily (Italy). Microorganisms. 2017; 5 (4):72.
Chicago/Turabian StyleAntonella Lugliè; Maria Grazia Giacobbe; Elena Riccardi; Milena Bruno; Silvia Pigozzi; Maria Antonietta Mariani; Cecilia Teodora Satta; Daniela Stacca; Anna Maria Bazzoni; Tiziana Caddeo; Pasqualina Farina; Bachisio Mario Padedda; Silvia Pulina; Nicola Sechi; Anna Milandri. 2017. "Paralytic Shellfish Toxins and Cyanotoxins in the Mediterranean: New Data from Sardinia and Sicily (Italy)." Microorganisms 5, no. 4: 72.
Bachisio Mario Padedda; Nicola Sechi; Giuseppina Grazia Lai; Maria Antonietta Mariani; Silvia Pulina; Marco Sarria; Cecilia Teodora Satta; Tomasa Virdis; Paola Buscarinu; Antonella Lugliè. Consequences of eutrophication in the management of water resources in Mediterranean reservoirs: A case study of Lake Cedrino (Sardinia, Italy). Global Ecology and Conservation 2017, 12, 21 -35.
AMA StyleBachisio Mario Padedda, Nicola Sechi, Giuseppina Grazia Lai, Maria Antonietta Mariani, Silvia Pulina, Marco Sarria, Cecilia Teodora Satta, Tomasa Virdis, Paola Buscarinu, Antonella Lugliè. Consequences of eutrophication in the management of water resources in Mediterranean reservoirs: A case study of Lake Cedrino (Sardinia, Italy). Global Ecology and Conservation. 2017; 12 ():21-35.
Chicago/Turabian StyleBachisio Mario Padedda; Nicola Sechi; Giuseppina Grazia Lai; Maria Antonietta Mariani; Silvia Pulina; Marco Sarria; Cecilia Teodora Satta; Tomasa Virdis; Paola Buscarinu; Antonella Lugliè. 2017. "Consequences of eutrophication in the management of water resources in Mediterranean reservoirs: A case study of Lake Cedrino (Sardinia, Italy)." Global Ecology and Conservation 12, no. : 21-35.
Recurrent blooms of Chattonella subsalsa (Raphidophyceae) were associated with fish kills in Santa Giusta Lagoon (Mediterranean Sea). This study investigated the population dynamics of C. subsalsa and its relationship with environmental and meteorological conditions, using multiannual ecological data (1990-2016). In addition, for the first time, this study examined the presence of C. subsalsa cysts in lagoon sediments. The species was first detected in Santa Giusta Lagoon in July 1994. Bloom events coinciding with fish kills were recorded in 1994, 1998, 1999, and 2010. The timing and dynamics of C. subsalsa blooms and fish kills varied over the examined period. Presence of C. subsalsa was strongly influenced by temperature, especially in the early years of the series (1990-2002). Temperature control may have been lesser important in the more recent years, when higher temperature may have generated continuative suitable conditions for C. subsalsa affirmation, especially in July. Thus, the variations in the availability of food (via autotrophy and/or mixotrophy) could be one of the control keys on the proliferation of this species in the future in SG. Cysts of C. subsalsa were present in lagoon sediments at abundances ranging 200-2000cystsg(-1) wet sediment. This study is among a few that have examined C. subsalsa population dynamics and bloom events in the field over a long time period. Findings from this study contribute to a better understanding of C. subsalsa bloom development, by identifying environmental and meteorological variables that may promote blooms of this species in the Santa Giusta Lagoon.
Cecilia Teodora Satta; Bachisio Mario Padedda; Nicola Sechi; Silvia Pulina; Alessandra Loria; Antonella Lugliè. Multiannual Chattonella subsalsa Biecheler (Raphidophyceae) blooms in a Mediterranean lagoon (Santa Giusta Lagoon, Sardinia Island, Italy). Harmful Algae 2017, 67, 61 -73.
AMA StyleCecilia Teodora Satta, Bachisio Mario Padedda, Nicola Sechi, Silvia Pulina, Alessandra Loria, Antonella Lugliè. Multiannual Chattonella subsalsa Biecheler (Raphidophyceae) blooms in a Mediterranean lagoon (Santa Giusta Lagoon, Sardinia Island, Italy). Harmful Algae. 2017; 67 ():61-73.
Chicago/Turabian StyleCecilia Teodora Satta; Bachisio Mario Padedda; Nicola Sechi; Silvia Pulina; Alessandra Loria; Antonella Lugliè. 2017. "Multiannual Chattonella subsalsa Biecheler (Raphidophyceae) blooms in a Mediterranean lagoon (Santa Giusta Lagoon, Sardinia Island, Italy)." Harmful Algae 67, no. : 61-73.
Bysmatrum subsalsum is a cosmopolitan dinoflagellate species that inhabits marine and transitional habitats. Despite its wide distribution, information on the morphological variability, phylogeny and ecology of B. subsalsum is scarce. In this study, we provide morphological and molecular data on B. subsalsum strains and wild cells from different locations in the Mediterranean Basin. The dynamics of cell abundances and the associated environmental conditions during a field bloom are also described. Genetic sequences of B. subsalsum obtained in this study showed large intraspecific differences, clustering in two well-differentiated clades. Despite a certain degree of variation with respect to cell size, apical pore complex (APC) morphology and size, and cingulum displacement, cells from the two clades showed similar morphological traits. These findings indicated the occurrence of cryptic species. Comparisons of the morphology of our B. subsalsum specimens with the few descriptions available in the literature revealed larger than previously known intraspecific morphological variability. Phylogenetic trees inferred from the concatenated SSU, 5.8S-ITS, and LSU rRNA and the individual 5.8S-ITS regions suggested the inclusion of Bysmatrum in the Peridiniales and a close phylogenetic relationship with Peridinium sensu stricto. However, the low statistical support prevented the assignment of Bysmatrum to a particular family of Peridiniales. Ecological data obtained from a bloom in La Pletera salt marshes (Catalan Coast, Spain) suggested the species reaches high cell abundances at water temperatures >20°C and salinity levels >30. Our results add new information regarding the morphology, phylogeny, and ecology of B. subsalsum.
Sílvia Anglès; Albert Reñé; Esther Garcés; Antonella Lugliè; Nicola Sechi; Jordi Camp; Cecilia Teodora Satta. Morphological and molecular characterization of Bysmatrum subsalsum (Dinophyceae) from the western Mediterranean Sea reveals the existence of cryptic species. Journal of Phycology 2017, 53, 833 -847.
AMA StyleSílvia Anglès, Albert Reñé, Esther Garcés, Antonella Lugliè, Nicola Sechi, Jordi Camp, Cecilia Teodora Satta. Morphological and molecular characterization of Bysmatrum subsalsum (Dinophyceae) from the western Mediterranean Sea reveals the existence of cryptic species. Journal of Phycology. 2017; 53 (4):833-847.
Chicago/Turabian StyleSílvia Anglès; Albert Reñé; Esther Garcés; Antonella Lugliè; Nicola Sechi; Jordi Camp; Cecilia Teodora Satta. 2017. "Morphological and molecular characterization of Bysmatrum subsalsum (Dinophyceae) from the western Mediterranean Sea reveals the existence of cryptic species." Journal of Phycology 53, no. 4: 833-847.
Correction: Occurrence of harmful algal species and shellfish toxicity in Sardinia (Italy)
Anna Maria Bazzoni; Alessandro Graziano Mudadu; Giuseppa Lorenzoni; Igor Arras; Antonella Lugliè; Barbara Vivaldi; Valentina Ciccotelli; Giovanna Sanna; Giuseppe Tedde; Salvatore Ledda; Enrico Alesso; Edoardo Marongiu; Sebastiano Virgilio. Correction: Occurrence of harmful algal species and shellfish toxicity in Sardinia (Italy). Italian Journal of Food Safety 2017, 6, 6734 .
AMA StyleAnna Maria Bazzoni, Alessandro Graziano Mudadu, Giuseppa Lorenzoni, Igor Arras, Antonella Lugliè, Barbara Vivaldi, Valentina Ciccotelli, Giovanna Sanna, Giuseppe Tedde, Salvatore Ledda, Enrico Alesso, Edoardo Marongiu, Sebastiano Virgilio. Correction: Occurrence of harmful algal species and shellfish toxicity in Sardinia (Italy). Italian Journal of Food Safety. 2017; 6 (2):6734.
Chicago/Turabian StyleAnna Maria Bazzoni; Alessandro Graziano Mudadu; Giuseppa Lorenzoni; Igor Arras; Antonella Lugliè; Barbara Vivaldi; Valentina Ciccotelli; Giovanna Sanna; Giuseppe Tedde; Salvatore Ledda; Enrico Alesso; Edoardo Marongiu; Sebastiano Virgilio. 2017. "Correction: Occurrence of harmful algal species and shellfish toxicity in Sardinia (Italy)." Italian Journal of Food Safety 6, no. 2: 6734.
Stable isotope analysis (SIA) of carbon and nitrogen sheds light on the origin of the food resources exploited by the fish and provides basic information on the trophic relationships among taxa. In this study, SIA of C and N was used to investigate the trophic behavior of fish species in a small Mediterranean reservoir, Lake Sos Canales (SC) in Sardinia, Italy, during an annual hydrological cycle. Fish were caught approximately every two months, and baseline isotopic C and N levels in the pelagic and littoral area were analyzed to establish the origin of fish food sources, considering suspended particulate matter, planktonic crustaceans and littoral macroinvertebrates. To assess the relative contribution of the two different sources using SIA, a Dynamic Baseline Mixing Model (DBMM) was applied and the results were compared with the fish gut contents. Our aim was to chart the seasonal trophic behavior of the fish species inhabiting an anthropogenic aquatic environment under considerable stress due to water level fluctuations. Isotopic results showed a seasonal trend with 13C levels depleted more in autumn-winter and less in spring-summer, while an inverse trend was recorded for 15N, both in the isotopic baseline values and in the fish. Isotopic results and gut content analysis highlighted a year-round strict dependence on littoral food sources only for the brown trout, whereas the mosquitofish changed their trophic behavior seasonally, shifting from littoral (high water level period) to pelagic (low water level period) food sources, mirroring the hydrological conditions of Lake SC
Amedeo Fadda; Francesco Palmas; Federica Camin; Luca Ziller; Bachisio Mario Padedda; Antonella Lugliè; Marina Manca; Andrea Sabatini. Analysis of δ13C and δ15N isotopic signatures to shed light on the hydrological cycle’s influence on the trophic behavior of fish in a Mediterranean reservoir. Biologia 2016, 71, 1395 -1403.
AMA StyleAmedeo Fadda, Francesco Palmas, Federica Camin, Luca Ziller, Bachisio Mario Padedda, Antonella Lugliè, Marina Manca, Andrea Sabatini. Analysis of δ13C and δ15N isotopic signatures to shed light on the hydrological cycle’s influence on the trophic behavior of fish in a Mediterranean reservoir. Biologia. 2016; 71 (12):1395-1403.
Chicago/Turabian StyleAmedeo Fadda; Francesco Palmas; Federica Camin; Luca Ziller; Bachisio Mario Padedda; Antonella Lugliè; Marina Manca; Andrea Sabatini. 2016. "Analysis of δ13C and δ15N isotopic signatures to shed light on the hydrological cycle’s influence on the trophic behavior of fish in a Mediterranean reservoir." Biologia 71, no. 12: 1395-1403.
Stable isotope analysis of carbon (C) and nitrogen (N) was used to study the nature and origin of the suspended particulate matter (SPM) in a small Mediterranean reservoir, Lake Sos Canales (SC). The δ13C and δ15N isotopic ratios, physical-chemical parameters, nutrients and phytoplankton were analyzed ca. monthly over a hydrological year on the vertical profile at two stations (lacustrine and riverine). SPM quantity and composition were related to the hydrological annual dynamic. In Mediterranean reservoirs, water-level fluctuation is one of the most important stressors, largely dependent on the strong seasonality of climate and water exploitation for human uses. Mediterranean reservoirs show different phases during a hydrological year, alternating empty and low water level (summer–autumn), re-filling (winter–spring) and high water (spring–summer) phases. Isotopic ratios of C and N were similar on the vertical profile and at the two stations during the low water phase, but differed during the re-filling and high water phases. Significant correlations were found between δ15N and water level, and between δ13C and temperature in the surface layer at the lacustrine station. An unusual δ13C distribution along the water column during the re-filling phase was interpreted on the basis of phytoplankton species composition, mainly due by Gymnodinium uberrimum.
Amedeo Fadda; Marina Manca; Federica Camin; Luca Ziller; Paola Buscarino; Mariantonietta Mariani; Bachisio Mario Padedda; Nicola Sechi; Tomasa Virdis; Antonella Lugliè. Study on the suspended particulate matter of a Mediterranean artificial lake (Sos Canales Lake) using Stable Isotope Analysis of carbon and nitrogen. Annales de Limnologie - International Journal of Limnology 2016, 52, 401 -412.
AMA StyleAmedeo Fadda, Marina Manca, Federica Camin, Luca Ziller, Paola Buscarino, Mariantonietta Mariani, Bachisio Mario Padedda, Nicola Sechi, Tomasa Virdis, Antonella Lugliè. Study on the suspended particulate matter of a Mediterranean artificial lake (Sos Canales Lake) using Stable Isotope Analysis of carbon and nitrogen. Annales de Limnologie - International Journal of Limnology. 2016; 52 ():401-412.
Chicago/Turabian StyleAmedeo Fadda; Marina Manca; Federica Camin; Luca Ziller; Paola Buscarino; Mariantonietta Mariani; Bachisio Mario Padedda; Nicola Sechi; Tomasa Virdis; Antonella Lugliè. 2016. "Study on the suspended particulate matter of a Mediterranean artificial lake (Sos Canales Lake) using Stable Isotope Analysis of carbon and nitrogen." Annales de Limnologie - International Journal of Limnology 52, no. : 401-412.