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Academic literature on the topic 'Grado-Marano lagoon'

Author: Grafiati
Published: 11 March 2023

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Journal articles on the topic "Grado-Marano lagoon"

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Cosolo, Mauro, Paolo Utmar, Flavio Roppa, and Stefano Sponza. "Interactions between fish resources and Cormorants Phalacrocorax carbo in the Grado and Marano lagoon (NE Italy)." Acrocephalus 30, no. 140 (January 1, 2009): 17–23. http://dx.doi.org/10.2478/v10100-009-0002-9.

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Interactions between fish resources and CormorantsPhalacrocorax carboin the Grado and Marano lagoon (NE Italy)The aim of this study was to determine the importance of different environments for CormorantPhalacrocorax carbobiology in the Grado and Marano lagoon (Friuli Venezia Giulia, NE Italy, Upper Adriatic Sea), and to estimate the levels of fish removal within such areas. Data were collected on Cormorant abundance and the amount of fish consumed in two fishing valli (Valle Noghera and Valle Artalina) and in three tidal areas (Goppion, Cavanata sea, Grado and Marano lagoon). The number of Cormorants per 100 ha was relatively low in all the study areas. The highest density of feeding cormorants in November (24 birds/100 ha) was in Valle Noghera. The latter is ascribed to an isolated event of 50 birds in social fishing activity. During the rest of the November survey time (72% of the total), lower densities were noted (2.5 birds/100 ha). Fish consumption was also relatively low. In Valle Artalina the maximum was 6.8 kg/100 ha in December. The highest fish consumption was estimated in Valle Noghera in November (41.9 kg/100 ha) and in the Grado and Marano lagoon in January (7.6 kg/100 ha). In fish farms, the highest fish consumption is recorded in November and December, exclusively within wintering basins and canals. So these areas should be covered with wire nets. Furthermore, considering the high variability and irregularity of fish removal, the use of active deterring methods (e.g. gas cannons) can give good results, especially if applied during social fishing events.
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Petti, Marco, Silvia Bosa, Sara Pascolo, and Erika Uliana. "Marano and Grado Lagoon: Narrowing of the Lignano Inlet." IOP Conference Series: Materials Science and Engineering 603, no. 3 (September 18, 2019): 032066. http://dx.doi.org/10.1088/1757-899x/603/3/032066.

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Manfrin, Chiara, Giovanni Comisso, Andrea Dall’Asta, Nicola Bettoso, and J. Sook Chung. "The return of the Blue Crab, Callinectes sapidus Rathbun, 1896, after 70 years from its first appearance in the Gulf of Trieste, northern Adriatic Sea, Italy (Decapoda: Portunidae)." Check List 12, no. 6 (December 2, 2016): 2006. http://dx.doi.org/10.15560/12.6.2006.

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Since August 2015, an increasing number of Blue Crabs, Callinectes sapidus Rathbun, 1896, have been reported in the Marano and Grado Lagoon, Gulf of Trieste, in the northern Adriatic Sea. This species is not a new introduction and in fact the first record of C. sapidus in Italy and the entire Adriatic Sea dates back to 1949 in the Grado Lagoon. Interestingly, no other records of C. sapidus have been reported since the first record. Here, we note the re-appearance of C. sapidus in the Gulf of Trieste.
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Petti, Marco, Sara Pascolo, and Silvia Bosa. "Relocation of Dredged Material from Marano and Grado Lagoon: An Example of Sustainable Management." IOP Conference Series: Materials Science and Engineering 1203, no. 2 (November 1, 2021): 022104. http://dx.doi.org/10.1088/1757-899x/1203/2/022104.

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Abstract The high degree of dynamism of coastal and lagoon morphodynamic processes often implies the need for dredging operations to maintain the navigability of the main waterways towards harbours or sites which have important tourist or economical value. In particular, within sheltered and shallow lagoons this phenomenon is continuous and involves large volumes of material that requires to be properly managed. The dredged materials can provide sediments for environmental enhancement and they can be used, as an example, to create or improve habitats, mudflats and salt marshes. Numerical model can be a valuable tool to investigate the morphological evolution of the disposals, especially in the medium term, with the aim of verifying the sediment stability and the bed level changes. The present paper shows an example of sustainable management of cohesive materials dredged from two channels of the Marano and Grado lagoon. The non-linear interactions between tidal currents and locally generated wind waves are reproduced by means of a coupled spectral-hydrodynamic model associated with a transport equation to compute sediment load concentration. The comparison of the results confirms the validity of the adopted procedure.
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Hines, Mark E., Erin N. Poitras, Stefano Covelli, Jadran Faganeli, Andrea Emili, Suzana Žižek, and Milena Horvat. "Mercury methylation and demethylation in Hg-contaminated lagoon sediments (Marano and Grado Lagoon, Italy)." Estuarine, Coastal and Shelf Science 113 (November 2012): 85–95. http://dx.doi.org/10.1016/j.ecss.2011.12.021.

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Canu, Rosati, and Solidoro. "Mercury Budget and Scenario Analysis for the Marano-Grado Lagoon, Using Modelling and Observations." Proceedings 30, no. 1 (November 15, 2019): 19. http://dx.doi.org/10.3390/proceedings2019030019.

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The Marano-Grado Lagoon (MGL) is extensively contaminated by mercury (Hg) from local sources and long-term (500 years) tidally delivered inputs from the Idrija Hg mine (Slovenia) through Isonzo River suspended loads. Mercury-polluted coastal sites, often become sites of increased mercury methylation and act, in the long term, as secondary mercury sources for the Mediterranean Basin. Methylmercury (MeHg) produced upon Hg methylation bioaccumulates and biomagnifies in the trophic webs, and it is eventually transferred to humans via fish intake. We implemented a dynamic model released by US-EPA (WASP-Merc7) to the MGL (North Adriatic Sea, Italy) in order to assess the concentration of mercury species in water, sediment and particulate, and to quantify the mercury fluxes and budget within the lagoon itself and between the lagoon, the atmosphere and the Adriatic Sea. Furthermore, the model was used to simulate the mercury long-term dynamics to estimate the recovery time for Hg in lagoon sediment (about 600 years) and to explore future scenarios of climate change and rivers capping. Still several gaps exist in the knowledge on mercury species concentration and kinetics, the model results take also into account the major sources of uncertainty.
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Sfriso, Adriano, Alessandro Buosi, Yari Tomio, Abdul-Salam Juhmani, Michele Mistri, Cristina Munari, and Andrea Sfriso. "Trends of Nitrogen and Phosphorus in Surface Sediments of the Lagoons of the Northern Adriatic Sea." Water 13, no. 20 (October 16, 2021): 2914. http://dx.doi.org/10.3390/w13202914.

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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 organic phosphorus in surface sediments of the lagoons and ponds of the northwestern Adriatic Sea (Marano-Grado, Venice, Po Delta, Comacchio Valleys, Pialassa della Baiona) show the merit of this approach. Indeed, when previous data are available, the ratio between the actual and background values can provide useful information on the trophic changes that have occurred in the most recent times, and the results can also explain the conditions present in less studied environments. In this context, numerous studies performed in the Venice lagoon since the second half of the 20th century during different environmental scenarios provide mean concentration ranges and propose the main causes of changes. The results of single datasets available for the other lagoons fall into scenarios that occurred in the Venice lagoon. At present, the most eutrophic basins are Pialassa della Baiona, the Po Delta lagoons and ponds and the Comacchio valleys due to industrial effluents, fish farming and clam harvesting, respectively, whereas the Venice lagoon is now experiencing environmental recovery.
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Emili, Andrea, Alessandro Acquavita, Neža Koron, Stefano Covelli, Jadran Faganeli, Milena Horvat, Suzana Žižek, and Vesna Fajon. "Benthic flux measurements of Hg species in a northern Adriatic lagoon environment (Marano and Grado Lagoon, Italy)." Estuarine, Coastal and Shelf Science 113 (November 2012): 71–84. http://dx.doi.org/10.1016/j.ecss.2012.05.018.

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MELIS, R., and S. COVELLI. "Distribution and morphological abnormalities of recent foraminifera in the Marano and Grado Lagoon (North Adriatic Sea, Italy)." Mediterranean Marine Science 14, no. 2 (October 29, 2013): 432. http://dx.doi.org/10.12681/mms.351.

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The Marano and Grado Lagoon, is a northern Adriatic wetland system of relevant naturalistic and economic value, that is constantly under quality control in accordance with the current environmental directives. Benthic foraminifers community with its morphological abnormalities were investigated in the recent sediments (about 10 years old) of 21 stations collected in the framework of the “MIRACLE” Project which aimed at testing the coexistence of clam farming with high Hg contamination. Euryhaline foraminifers, well known in Mediterranean brackish-waters, mainly characterizes the total assemblage. A. tepida dominates in areas characterized by low salinity, high clay and Corg content, but also to anthropogenic pressure. E. gunteri and H. germanica are recorded in the western sector of the lagoon, which is more affected by salinity variations and agricultural activities. Slightly higher values of assemblage diversity appear in less restricted areas of the lagoon or, at least, where physical parameters such as temperature and salinity are less variable. The test abnormalities, carried out on total assemblage, shows that the FAI (Foraminiferal Abnormality Index) values always exceed 1% of the total assemblage, with clear decreasing gradients from inland to the sea (from N to S) and from W to E in the studied area.
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Pascolo, Sara, Marco Petti, and Silvia Bosa. "Wave Forecasting Dependent from Bottom Roughness: The Case of the Marano and Grado Lagoon." IOP Conference Series: Materials Science and Engineering 960 (December 10, 2020): 032035. http://dx.doi.org/10.1088/1757-899x/960/3/032035.

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Dissertations / Theses on the topic "Grado-Marano lagoon"

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Hubina, Tatsiana. "Development of a GIS to estimate the effect of abiotic factors on the abundance of waterbirds in the Grado-Marano Lagoon." Doctoral thesis, Università degli studi di Trieste, 2009. http://hdl.handle.net/10077/3168.

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2007/2008
L’obiettivo di questa tesi è valutare l’influenza di vari fattori biotici e abiotici che possono influenzare l’abbondanza degli uccelli acquatici nella laguna di Grado e Marano. La laguna di Grado e Marano è situata nel NE del mare Adriatico e ha un’estensione approssimativa di 160 km2. Il passo introduttivo nell’implementazione della struttura del progetto è stato individuare un sistema innovativo per la raccolta, la standardizzazione e l’archiviazione dei dati ornitologici. Immagini satellitari ASTER sono state utilizzate per classificare differenti tipi di habitat, incluse le praterie di fanerogame. Nel Sistema Informativo Geografico sono state incluse quattro variabili abiotiche (azoto e fosforo totale, salinità e tessitura del sedimento) e tre fattori biotici (comunità bentonica, praterie di fanerogame e l’abbondanza degli uccelli acquatici presenti (Mean values: December 2006, January and February 2007), raggruppati in unita funzionali o guilds). Una griglia UTM con celle di grandezza 1km x 1km (Operational Geographic Units, OGU), è stata sovrapposta all’intera laguna. Per definire le unità ecologiche sono state applicate la classificazione gerarchica e l’analisi delle componenti principali. Da ultimo è stata usata l’analisi di corrispondenza per esaminare la relazione tra uccelli acquatici raggruppati in guilds e le unità ecologiche. L’integrazione dei metodi standard di censimento con i database relazionali per archiviare e analizzare i dati ornitologici, con le tecniche di telerilevamento e di GIS e con i metodi di analisi multivariata, rappresenta un set di strumenti efficienti e potenti per il monitoraggio integrato della laguna. Il soddisfacente risultato ottenuto si potrebbe applicare per ottenere un miglioramento della struttura gestionale di numerose zone umide dell’Adriatico. The purpose of this thesis is to estimate the influence of several biotic and abiotic factors on the abundance of waterbirds in the Grado-Marano Lagoon. The Grado-Marano Lagoon is situated in the Northeast of the Adriatic Sea with an extension of approximately 160 km2. Design of an innovative system for ornithological data gathering, standardisation and storage has been an initial step in the whole project structure. Waterbirds census was carried out by periodically monitoring the bird population over a two-year period (July 2006- July 2008). The present research is making use of the integrated waterbirds census database December 2006 - February 2007 (Daylight Time Counts completed by Aerial Surveys). Terrestrial and aerial survey methods allowed us to describe bird density and habitat use. An Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) satellite images were utilized to classify different types of morphologies and habitat, including sea grass meadows. Four abiotic factors (total nitrogen, total phosphorous, salinity and sediment texture) and three biotic factors (benthic community, sea grass meadows and waterbird guild abundance) were integrated into a GIS. The flexibility of the procedure proposed in this PhD research depends on the concept of the Operational Geographic Unit (OGU) as a useful tool to integrate in a GIS georeferenced multisource data A regular UTM grid of square cells (OGU), 1km × 1km, was superimposed on the entire lagoon. Using the Hierarchical Cluster Analysis technique it was possible to delineate ecological units (clusters of OGUs) and Principal Component Analysis was used to reduce the dimensionality of the factors considered. Subsequently, Correspondence Analysis (CA) was used to examine the relationship between waterbird guild abundance and ecological units. The results obtained from this study show that sea grass meadows represent a fundamental trophic resource for aquatic birdlife in the lagoon. It is therefore indispensable to assess the distribution of phanerogam meadows and to identify the principal ecological parameters. In this context, GIS techniques allow us to integrate significant amounts of environmental data and multivariate analysis helps us to reduce the dimensionality of the data set. The integration of standard waterbirds census methods, relational databases for the ornithological data storing and analysis, remote sensing techniques, GIS technologies and multivariate statistical methods provides us with a set of powerful and efficient tool for lagoon integrated monitoring. It demonstrates the promising potentials in reforming the management frameworks of the numerous coastal wetlands in the Adriatic.
XXI Ciclo
1979
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Book chapters on the topic "Grado-Marano lagoon"

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Canu, Donata M., Alessandro Acquavita, Christopher D. Knightes, Giorgio Mattassi, Isabella Scroccaro, and Cosimo Solidoro. "Modeling the Mercury Cycle in the Marano-Grado Lagoon (Italy)." In Developments in Environmental Modelling, 239–57. Elsevier, 2012. http://dx.doi.org/10.1016/b978-0-444-59396-2.00015-8.

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Petti, M., and S. Bosa. "Pollution transport in the lagoon of Grado and Marano: a two dimensional modelling approach." In River Flow 2004, 1183–92. CRC Press, 2004. http://dx.doi.org/10.1201/b16998-154.

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Bosa, S., and M. Petti. "A finite volume model of flow and sediment transport in the lagoon of Grado-Marano." In River Flow 2004, 677–87. CRC Press, 2004. http://dx.doi.org/10.1201/b16998-88.

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Sladonja, Barbara, Nicola Bettoso, Aurelio Zentilin, Francesco Tamberlich, and Alessandro Acquavit. "Manila Clam (Tapes philippinarum Adams & Reeve, 1852) in the Lagoon of Marano and Grado (Northern Adriatic Sea, Italy): Socio-Economic and Environmental Pathway of a Shell Farm." In Aquaculture and the Environment - A Shared Destiny. InTech, 2011. http://dx.doi.org/10.5772/31737.

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Conference papers on the topic "Grado-Marano lagoon"

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Ramieri, E., A. Barbanti, M. Picone, G. Menchini, E. Bressan, and E. Dal Forno. "Integrated plan for the sustainable management of the Lagoon of Marano and Grado." In Littoral 2010 – Adapting to Global Change at the Coast: Leadership, Innovation, and Investment. Les Ulis, France: EDP Sciences, 2011. http://dx.doi.org/10.1051/litt/201105008.

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Scroccaro, Isabella, Federico Pittaluga, and Giorgio Mattassi. "Anoxia Monitoring System for Transitional Waters – The Case of the Marano and Grado Lagoon (Italy)." In 8th International Coastal Management Conference. ICE Publishing, 2016. http://dx.doi.org/10.1680/cm.61149.049.

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Altobelli, Alfredo, Tatsiana Hubina, Stefano Sponza, and Alberto Sisto. "Effect of abiotic and biotic factors on the abundance of waterbirds in Grado-Marano Lagoon (Italy)." In SPIE Remote Sensing, edited by Christopher M. U. Neale, Manfred Owe, and Guido D'Urso. SPIE, 2008. http://dx.doi.org/10.1117/12.800292.

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BEZZI, Annelore, Eleonora DRIUSSO, Davide MARTINUCCI, and Giorgio FONTOLAN. "The historical practice of disposal of dredged sediments in the Grado and Marano lagoon: evaluation of geomorphological, evolutionary and functional perspective of the resulting artificial salt-marshes." In Conférence Méditerranéenne Côtière et Maritime - Coastal and Maritime Mediterranean Conference. Editions Paralia, 2015. http://dx.doi.org/10.5150/cmcm.2015.024.

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