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301.
Francesco Colloca Paolo Carpentieri Elena Balestri Giandomenico Ardizzone 《Marine Biology》2010,157(3):565-574
We investigated the effects of body size, feeding strategy and depth distribution on the trophic resource partitioning among
the 26 dominant fish consumers in a fish assemblage on the central Mediterranean shelf-break. The fish assemblage was structured
in two major trophic guilds: epibenthic and zooplanktonic feeders, according to the position of each predator along the benthos–plankton
gradient. Within each main guild, the species were segregated along a prey-size or fish-size gradient into five further guilds.
Fish size and prey size were strongly correlated, indicating that the prey-size niche can be well explained by predator size.
Fish consumers showed a significant negative correlation between the similarity in prey type and the similarity in depth distribution;
most species with similar trophic preferences segregated along the depth dimension. The only predators overlapping in both
food and depth preferences were those with a more specialist trophic behavior. These results suggest that fish body size and
depth preferences are the two main niche dimensions, explaining a large part of the coexistence between the Mediterranean
shelf-break fish consumers. 相似文献
302.
Marino Martini Luciano Giannini Antonella Buccianti Laura Maggi Franco Prati Paola Cellini Legittimo Paolo Iozzelli Bruno Capaccioni 《Chemistry and Ecology》1991,5(3):139-147
A major influence on the environment of active volcanic areas is expected from continuous input of chemical species pertaining to fumarolic activities occurring during inter-eruptive intervals.
The systematic investigations carried out during thirteen years in the island of Vulcano (Italy) showed also substantial contributions to phreatic waters and soils of minor constituents and trace metals from volcanic rocks with no negligible influence on growing crops.
Greater extents of these phenomena have been observed for products of hydromagmatic volcanic activity or of long-lasting weathering processes. 相似文献
The systematic investigations carried out during thirteen years in the island of Vulcano (Italy) showed also substantial contributions to phreatic waters and soils of minor constituents and trace metals from volcanic rocks with no negligible influence on growing crops.
Greater extents of these phenomena have been observed for products of hydromagmatic volcanic activity or of long-lasting weathering processes. 相似文献
303.
A novel visible light-active photocatalyst formulation(NdT/OP) was obtained by supporting N-doped TiO_2(NdT) particles on up-conversion luminescent organic phosphors(OP). The photocatalytic activity of such catalysts was evaluated for the mineralization process of spiramycin in aqueous solution. The effect of NdT loading in the range 15–60 wt.% on bulk and surface characteristics of NdT/OP catalysts was investigated by several chemicophysical characterization techniques. The photocatalytic performance of NdT/OP catalysts in the removal of spyramicin from aqueous solution was assessed through photocatalytic tests under visible light irradiation. Total organic carbon(TOC) of aqueous solution,and CO and CO_2 gas concentrations evolved during the photodegradation were analyzed. A dramatic enhancement of photocatalytic activity of the photostructured visible active NdT/OP catalysts,compared to NdT catalyst,was observed. Only CO_2 was detected in gas-phase during visible light irradiation,proving that the photocatalytic process is effective in the mineralization of spiramycin,reaching very high values of TOC removal. The photocatalyst NdT/OP at 30 wt.% of NdT loading showed the highest photocatalytic activity(58%of TOC removed after 180 min irradiation against only 31% removal after 300 min of irradiation of NdT). We attribute this enhanced activity to the high effectiveness in the utilization of visible light through improved light harvesting and exploiting. OP particles act as "photoactive support",able to be excited by the external visible light irradiation,and reissue luminescence of wavelength suitable to promote NdT photomineralization activity. 相似文献
304.
305.
J. B. Legradi C. Di Paolo M. H. S. Kraak H. G. van der Geest E. L. Schymanski A. J. Williams M. M. L. Dingemans R. Massei W. Brack X. Cousin M.-L. Begout R. van der Oost A. Carion V. Suarez-Ulloa F. Silvestre B. I. Escher M. Engwall G. Nilén S. H. Keiter D. Pollet P. Waldmann C. Kienle I. Werner A.-C. Haigis D. Knapen L. Vergauwen M. Spehr W. Schulz W. Busch D. Leuthold S. Scholz C. M. vom Berg N. Basu C. A. Murphy A. Lampert J. Kuckelkorn T. Grummt H. Hollert 《Environmental Sciences Europe》2018,30(1):46
The numbers of potential neurotoxicants in the environment are raising and pose a great risk for humans and the environment. Currently neurotoxicity assessment is mostly performed to predict and prevent harm to human populations. Despite all the efforts invested in the last years in developing novel in vitro or in silico test systems, in vivo tests with rodents are still the only accepted test for neurotoxicity risk assessment in Europe. Despite an increasing number of reports of species showing altered behaviour, neurotoxicity assessment for species in the environment is not required and therefore mostly not performed. Considering the increasing numbers of environmental contaminants with potential neurotoxic potential, eco-neurotoxicity should be also considered in risk assessment. In order to do so novel test systems are needed that can cope with species differences within ecosystems. In the field, online-biomonitoring systems using behavioural information could be used to detect neurotoxic effects and effect-directed analyses could be applied to identify the neurotoxicants causing the effect. Additionally, toxic pressure calculations in combination with mixture modelling could use environmental chemical monitoring data to predict adverse effects and prioritize pollutants for laboratory testing. Cheminformatics based on computational toxicological data from in vitro and in vivo studies could help to identify potential neurotoxicants. An array of in vitro assays covering different modes of action could be applied to screen compounds for neurotoxicity. The selection of in vitro assays could be guided by AOPs relevant for eco-neurotoxicity. In order to be able to perform risk assessment for eco-neurotoxicity, methods need to focus on the most sensitive species in an ecosystem. A test battery using species from different trophic levels might be the best approach. To implement eco-neurotoxicity assessment into European risk assessment, cheminformatics and in vitro screening tests could be used as first approach to identify eco-neurotoxic pollutants. In a second step, a small species test battery could be applied to assess the risks of ecosystems. 相似文献
306.
Mali Matilda Di Leo Antonella Giandomenico Santina Spada Lucia Cardellicchio Nicola Calò Maria Fedele Alessandra Ferraro Luciana Milia Alfonsa Renzi Monia Massara Francesca Granata Tommaso Moruzzi Letizia Buonocunto Francesco Paolo 《Environmental science and pollution research international》2022,29(41):62281-62298
Environmental Science and Pollution Research - The Gulf of Naples located in a high anthropized coastal area is subjected to an infrastructural intervention for the installation of a submarine... 相似文献