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Marini, M.; Grilli, F. Nitrogen and Phosphorus in the Northern Adriatic Sea. Encyclopedia. Available online: https://encyclopedia.pub/entry/48714 (accessed on 18 November 2024).
Marini M, Grilli F. Nitrogen and Phosphorus in the Northern Adriatic Sea. Encyclopedia. Available at: https://encyclopedia.pub/entry/48714. Accessed November 18, 2024.
Marini, Mauro, Federica Grilli. "Nitrogen and Phosphorus in the Northern Adriatic Sea" Encyclopedia, https://encyclopedia.pub/entry/48714 (accessed November 18, 2024).
Marini, M., & Grilli, F. (2023, August 31). Nitrogen and Phosphorus in the Northern Adriatic Sea. In Encyclopedia. https://encyclopedia.pub/entry/48714
Marini, Mauro and Federica Grilli. "Nitrogen and Phosphorus in the Northern Adriatic Sea." Encyclopedia. Web. 31 August, 2023.
Nitrogen and Phosphorus in the Northern Adriatic Sea
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This entry is adapted from the peer-reviewed paper 10.3390/app13169267

In the last two decades of the 21st century, a gradual decrease in nitrogen and phosphorus has been observed along the coastal area of the Northern Adriatic Sea. This depletion is attributed to reduced river flows. Studies conducted over the past four decades have indicated that the N/P ratio in the open sea is unlikely to undergo significant change. In fact, it tends to increase due to the unique characteristics of the Northern Adriatic Sea, which experiences slow water turnover and is influenced by strong winds. Additionally, the Northern Adriatic Sea receives a substantial amount of freshwater from rivers, accounting for about one-third of the total freshwater flow into the Mediterranean. These rivers carry nutrient loads that contribute to the high productivity and abundance of fish in this sea, making it one of the most productive areas in the Mediterranean. It has been observed that the cessation of anthropogenic phosphorus input, which has been regulated since the late 1980s with legislation limiting its use in detergents, has significantly affected the trophic chain.

Northern Adriatic Sea eutrophication nitrogen phosphorus fishing resource freshwater long term research plankton

1. Peculiarity of the Northern Adriatic Sea

The Northern Adriatic Sea is particularly vulnerable to nutrient pollution due to its unique characteristics, including shallow depths, limited water exchange, and the influence of river discharges. The Northern Adriatic Sea, covering an area of 19,000 km2 with an average depth of 35 m, receives freshwater input from numerous rivers and streams, including the Po River (1500 m3 s−1, [1]), which contributes more than 50% of the external nutrient input [2][3][4]. The Adriatic’s salinity is lower than that of the Mediterranean because the Adriatic collects one-third of the freshwater flowing into the Mediterranean Sea [5].
The Po watershed is very large (75,000 km2, [1]) and includes highly developed Italian regions with a resident population of 16 million people [6][7]. This area is intensively cultivated with heavy use of natural and artificial fertilizers [8]. Being one of the most densely populated and agriculturally productive areas in Europe [9], the Po Valley significantly influences the nitrogen (N) and phosphorus (P) input to the Northern Adriatic Sea, affecting the productivity and trophic dynamics of the whole Mediterranean basin [10][11][12][13]. When these N and P inputs enter the sea, they fuel the growth of phytoplankton and macroalgae. However, when present in excessive amounts, they can lead to eutrophication. This process in the Adriatic Sea is significantly influenced by seasonal circulation patterns [14][15][16]. In winter, the anticlockwise superficial and deeper circulation along the western coasts brings in nutrient-rich waters from the Po River [5][17][18][19] and other rivers originating in the Apennines [20][21][22][23]. These colder and less saline waters flow close to the Italian coast throughout the water column.
In contrast, during the summer season, the hydrodynamic conditions change, resulting in weaker currents and a series of clockwise and anticlockwise gyres, as well as strong water column stratification, with colder waters from the previous winter near the bottom [12][24][25][26][27][28][29]. As a result, nutrient concentrations in the surface waters increase, creating favorable conditions for the growth of phytoplankton and macroalgae. Following the cyclonic circulation, the waters of the Mediterranean Sea flow into the Adriatic Sea from the eastern side of the Strait of Otranto while on the western side, they flow from the Adriatic to the Mediterranean Sea [30][31][32][33][34].

2. Influence of Climate Change in the Northern Mediterranean Area

Several authors have demonstrated the Mediterranean’s particular sensitivity to the North Atlantic Oscillation (NAO). However, the influence of the NAO on the Mediterranean exhibits heterogeneity and distinct trends in two regions: the Northern Mediterranean (southern Europe) and Central/Northern Europe. These regions demonstrate contrasting patterns to the NAO trend [35][36][37][38][39]. An analysis of rainfall data collected in the Mediterranean spanning two centuries, namely the XIX and XX centuries, was conducted, and the trends over the Italian territory starting from the 1970s were analyzed. The findings revealed a negative trend in rainfall, particularly pronounced during the winter season. This decrease in rainfall was more prominent in northern Italy compared to the southern regions. Moreover, the study documented an increase in the occurrence of more intense rainfall events during the analyzed period [36][38].
In recent decades, the fluvial loads of rivers in the Mediterranean Sea have undergone significant changes, particularly in the last two to three decades. These changes have had more pronounced and evident effects in the Mediterranean Sea due to two main factors: firstly, the constrained availability of water resources in the Mediterranean region, and secondly, the increased anthropic pressure, especially in coastal areas and the Po Valley. The construction and utilization of river dams have evolved rapidly since the 1950s [40], substantially altering the natural outflow of Mediterranean rivers. The widespread use of these dams for irrigation and various other purposes has led to profound modifications in the fluvial dynamics of the region’s rivers. The second crucial factor contributing to these changes is the ongoing climatic shifts in the Mediterranean region. These changes have been extensively documented through the monitoring programs that have recorded variations since the latter part of the 20th century. Additionally, modeling processes have forecasted an increase in drought occurrences, primarily attributed to the rise in temperatures [41][42][43][44][45].
Grilli et al. [46] confirmed that during the first two decades of the 21st century, the river flows of the Po River have exhibited a continuous decrease, along with variable trends in flood events. Specifically, the average daily flow of the Po River was observed to be 12% lower in the period from 2006 to 2015 compared to the earlier period from 1971 to 2005. Notably, the annual mean flow of the Po River experienced significant changes due to the occurrence of persistent drought periods. Moreover, the frequency of flow rates higher than 3000 m3 s−1 declined between 2006 and 2015 (the latter period considered in the analysis), and such higher flow events were more concentrated in certain months, namely February, April, November, and December. In contrast, previous decades experienced a greater number of these events that were spread over a larger period throughout the year.
Different authors have reported significant changes in various aspects of marine ecosystems [47][48]. These changes include alterations in the composition of plankton communities, shifts in the distribution of macrobenthos, the introduction and spreading of non-indigenous species, changes in the total biomass of target demersal fishes, and fluctuations in the catches of small pelagic fish [49][50][51][52][53][54][55][56][57].

3. Nitrogen and Phosphorus Conditioning in the Sea

The period of significant social changes, robust post-World War II industrial development, and the subsequent globalization of trade from the 1950s to the 1990s led to a substantial increase in the consumption of N and P for various purposes. Notably, N was extensively used as a fertilizer in agriculture, and its subsequent mineralization in surface and ground water, rather than industrial discharges into the atmosphere and urban wastewater, resulted in a substantial input of N watercourses eventually reaching the sea [8]. This pattern was also observed in the Northern Adriatic basin. As for P, its primary uses were prevalent in domestic environments and industry [8]. N and P are two elements that exhibit different behaviors once emitted into terrestrial and aquatic environments. The fate of P in the soil is primarily determined by chemical processes, such as adsorption/desorption and dissolution/precipitation. In contrast, the fate of N is primarily governed by biological processes including mineralization, nitrification, and denitrification [58].
Indeed, the extensive use of P and N during the latter half of the 20th century, along with the effects of climate change, has had significant implications for the Northern Adriatic Sea. The impact of climate change has become particularly evident in this region, starting from the end of the 20th century [36][59]. Notably, these changes are characterized by intense precipitation events, especially in spring and autumn, which significantly influence river outflows, leading to the transport of freshwater and suspended sediment into the sea [18][60][61]. As a consequence, these freshwater and sediment inputs carry pollutants, including N and P [19][23][62][63]. The combination of nutrient inputs from anthropogenic sources and climate-induced changes in hydrological patterns has contributed to alterations in nutrient concentrations and dynamics within the Northern Adriatic Sea.
In Italy, the total use of P in domestic detergents was prevented through Ministerial Decree n. 413 of 13 September 1988, which took effect from January 1989. Previously, from 1985 to 1988, there were other gradual measures implemented to reduce the use of P. Subsequently, in 2012, Europe adopted restrictive measures through Regulation 259/2012/EC, setting limitations for P of 0.5 g/dose in domestic laundry detergents and 0.3 g/dose in domestic dishwasher detergents. These regulatory measures have significantly contributed to the reduction of P inflow in surface watercourses up to the sea. As a result of this reduction, observable effects were recorded in the coastal strip with particular evidence in the Western North Adriatic Sea.
The predictions made by Caggiati & Ferrari [9] anticipated a decrease in P levels by the year 2020. Subsequent observations from the late 1990s to the 2000s showed a leveling off of P inputs into the sea, followed by a downward trend in the first two decades of the 21st century. However, the same trend was not observed for N. Despite the study by Caggiati & Ferrari [9] and subsequent works (e.g., [46]), N levels did not exhibit evident decreases, except in the strictly coastal strip around 3 km from the coast, where observations by Ricci et al. [23] demonstrated lower river flows and consequently reduced N and P loads. Over the years, the annual runoff of the Po River has exhibited significant fluctuations on a multi decadal time scale, with an overall decrease (−33% [64]) observed in all rivers of the Northern Adriatic when comparing recent discharges to those before the 1980s. Notably, during the dry years 2005–2007 (the last period of data analysis considered), the Northern Adriatic ecosystem experienced a considerable reduction in river water flows and nutrient loads compared to previous years characterized by medium-high regimes, as confirmed by Cozzi & Giani [64].
The decreasing temporal trend of N and P levels observed in the Adriatic Sea is consistent with trends seen in other European seas that are characterized by shallow waters (continental shelf) and are strongly influenced by freshwater inputs. For example, similar trends have been observed in the coastal zone of Baltic Sea as well [65].
The excess accumulation of N and P has significantly accelerated the expansion of eutrophication in these seas. In the Northern Adriatic Sea, the eutrophication phenomenon has been perceived as a pollutant due to the excessive proliferation of algae, which have degraded water quality, benthic habitats, and community structures [66][67][68].
In particular, offshore of the Po Delta and along the western coast, the process of oxygen consumption (hypoxia/anoxia) was accentuated during the summer when waters are warm and calm, and stratification of the water column occurs. This leads to widespread and persistent oxygen deficiencies in bottom waters, resulting in the suffering of benthic communities [3][69][70][71][72]. Another important phenomenon that occurred concomitant with eutrophication was the excessive proliferation of mucilage, which was documented especially in the late 1980s and in the early 2000s [3][7][25][73][74][75][76][77][78].

References

  1. Cati, L. Idrografia e Idrologia Del Po; Istituto poligrafico e Zecca dello Stato: Rome, Italy, 1981.
  2. Degobbis, D.; Gilmartin, M.; Revelante, N. An annotated nitrogen budget calculation for the northern Adriatic Sea. Mar. Chem. 1986, 20, 159–177.
  3. Degobbis, D.; Gilmartin, M. Nitrogen, Phosphorus, and Biogenic Silicon Budgets for the Northern Adriatic Sea. Oceanol. Acta 1990, 13, 31–45.
  4. Djakovac, T.; Supić, N.; Aubry, F.B.; Degobbis, D.; Giani, M. Mechanisms of hypoxia frequency changes in the northern Adriatic Sea during the period 1972–2012. J. Mar. Syst. 2015, 141, 179–189.
  5. Raicich, F. On the fresh water balance of the Adriatic Sea. J. Mar. Syst. 1996, 9, 305–319.
  6. Ludwig, W.; Dumont, E.; Meybeck, M.; Heussner, S. River discharges of water and nutrients to the Mediterranean and Black Sea: Major drivers for ecosystem changes during past and future decades? Prog. Oceanogr. 2009, 80, 199–217.
  7. Degobbis, D. Increased eutrophication of the northern Adriatic sea: Second act. Mar. Pollut. Bull. 1989, 20, 452–457.
  8. Viaroli, P.; Soana, E.; Pecora, S.; Laini, A.; Naldi, M.; Fano, E.A.; Nizzoli, D. Space and time variations of watershed N and P budgets and their relationships with reactive N and P loadings in a heavily impacted river basin (Po river, Northern Italy). Sci. Total Environ. 2018, 639, 1574–1587.
  9. Caggiati, G.; Ferrari, F.; Piazza, D. Classificazione Qualitativa Dei Principali Corpi Idrici Superficiali Del Bacino Del Fiume Po. In I Quaderni del Piano di Bacino; Autorità di bacino del fiume Po: Parma, Italy, 1997.
  10. Gilmartin MRevelante, N. The Phytoplankton of the Adriatic Sea: Standing Crop and Primary Production. Thalassia Jugosl. 1983, 19, 173–188.
  11. Pettine, M.; Barra, I.; Campanella, L.; Millero, F.J. Effect of metals on the reduction of chromium (VI) with hydrogen sulfide. Water Res. 1998, 32, 2807–2813.
  12. Ravaioli, M.; Bergami, C.; Riminucci, F.; Langone, L.; Cardin, V.; Di Sarra, A.; Aracri, S.; Bastianini, M.; Bensi, M.; Bergamasco, A.; et al. The RITMARE Italian Fixed-Point Observatory Network (IFON) for marine environmental monitoring: A case study. J. Oper. Oceanogr. 2016, 9, s202–s214.
  13. Morabito, G.; Mazzocchi, M.G.; Salmaso, N.; Zingone, A.; Bergami, C.; Flaim, G.; Accoroni, S.; Basset, A.; Bastianini, M.; Belmonte, G.; et al. Plankton dynamics across the freshwater, transitional and marine research sites of the LTER-Italy Network. Patterns, fluctuations, drivers. Sci. Total Environ. 2018, 627, 373–387.
  14. Artegiani, A.; Paschini, E.; Russo, A.; Bregant, D.; Raicich, F.; Pinardi, N. The Adriatic Sea General Circulation. Part II: Baroclinic Circulation Structure. J. Phys. Oceanogr. 1997, 27, 1515–1532.
  15. Marić, D.; Kraus, R.; Godrijan, J.; Supić, N.; Djakovac, T.; Precali, R. Phytoplankton response to climatic and anthropogenic influences in the north-eastern Adriatic during the last four decades. Estuar. Coast. Shelf Sci. 2012, 115, 98–112.
  16. Marini, M.; Campanelli, A.; Sanxhaku, M.; Zoran, K.; Mattia, B. Grilli Federica Late Spring Characterization of Different Coastal Areas of the Adriatic Sea. Acta Adriat. 2015, 56, 27–46.
  17. Supić, N.; Grbec, B.; Vilibić, I.; Ivančić, I. Long-term changes in hydrographic conditions in northern Adriatic and its relationship to hydrological and atmospheric processes. Ann. Geophys. 2004, 22, 733–745.
  18. Campanelli, A.; Grilli, F.; Paschini, E.; Marini, M. The influence of an exceptional Po River flood on the physical and chemical oceanographic properties of the Adriatic Sea. Dyn. Atmos. Oceans 2011, 52, 284–297.
  19. Dunić, N.; Supić, N.; Sevault, F.; Vilibić, I. The northern Adriatic circulation regimes in the future winter climate. Clim. Dyn. 2023, 60, 3471–3484.
  20. Marini, M.; Fornasiero, P.; Artegiani, A. Variations of Hydrochemical Features in the Coastal Waters of Monte Conero: 1982–1990. Mar. Ecol. 2002, 23, 258–271.
  21. Campanelli, A.; Fornasiero, P.; Marini, M. Physical and Chemical Characterization of the Water Column in the Piceno Coastal Area (Adriatic Sea). Fresenius Environ. Bull. 2004, 13, 430–435.
  22. Spagnoli, F.; De Marco, R.; Dinelli, E.; Frapiccini, E.; Frontalini, F.; Giordano, P. Sources and Metal Pollution of Sediments from a Coastal Area of the Central Western Adriatic Sea (Southern Marche Region, Italy). Appl. Sci. 2021, 11, 1118.
  23. Ricci, F.; Capellacci, S.; Campanelli, A.; Grilli, F.; Marini, M.; Penna, A. Estuarine, Coastal and Shelf Science Long-term dynamics of annual and seasonal physical and biogeochemical properties: Role of minor river discharges in the North-western Adriatic coast. Estuar. Coast. Shelf Sci. 2022, 272, 107902.
  24. Grilli, F.; Paschini, E.; Precali, R.; Russo, A.; Supić, N. Circulation and horizontal fluxes in the northern Adriatic Sea in the period June 1999–July 2002. Part I: Geostrophic circulation and current measurement. Sci. Total Environ. 2005, 353, 57–67.
  25. Grilli, F.; Marini, M.; Degobbis, D.; Ferrari, C.R.; Fornasiero, P.; Russo, A.; Gismondi, M.; Djakovac, T.; Precali, R.; Simonetti, R. Circulation and horizontal fluxes in the northern Adriatic Sea in the period June 1999–July 2002. Part II: Nutrients transport. Sci. Total Environ. 2005, 353, 115–125.
  26. Marini, M.; Russo, A.; Paschini, E.; Grilli, F.; Campanelli, A. Short-term physical and chemical variations in the bottom water of middle Adriatic depressions. Clim. Res. 2006, 31, 227–237.
  27. Marini, M.; Maselli, V.; Campanelli, A.; Foglini, F.; Grilli, F. Role of the Mid-Adriatic deep in dense water interception and modification. Mar. Geol. 2016, 375, 5–14.
  28. Vilibić, I.; Pranić, P.; Denamiel, C. North Adriatic Dense Water: Lessons learned since the pioneering work of Mira Zore-Armanda 60 years ago. Acta Adriat. 2023, 64, 53–78.
  29. de Mendoza, F.P.; Schroeder, K.; Langone, L.; Chiggiato, J.; Borghini, M.; Giordano, P.; Verazzo, G.; Miserocchi, S. Deep-water hydrodynamic observations of two moorings sites on the continental slope of the southern Adriatic Sea (Mediterranean Sea). Earth Syst. Sci. Data 2022, 14, 5617–5635.
  30. Zore-Armanda, M. Water exchange between the Adriatic and the Eastern Mediterranean. Deep. Sea Res. Oceanogr. Abstr. 1969, 16, 171–178.
  31. Artegiani, A.; Gacic, M.; Michelato, A.; Kovacevic, V.; Russo, A.; Paschini, E.; Scarazzato, P.; Smircic, A. The Adriatic sea hydrography and circulation in spring and autumn (1985–1987). Deep. Sea Res. Part II Top. Stud. Oceanogr. 1993, 40, 1143–1180.
  32. Civitarese, G.; Gačić, M.; Lipizer, M.; Borzelli, G.L.E. On the impact of the Bimodal Oscillating System (BiOS) on the biogeochemistry and biology of the Adriatic and Ionian Seas (Eastern Mediterranean). Biogeosciences 2010, 7, 3987–3997.
  33. Grilli, F.; Marini, M.; Book, J.W.; Campanelli, A.; Paschini, E.; Russo, A. Flux of nutrients between the middle and southern Adriatic Sea (Gargano-Split section). Mar. Chem. 2013, 153, 1–14.
  34. Gacic, M.; Civitarese, G.; Ursella, L. Spatial and Seasonal Variability of Water and Biogeochemical Fluxes in the Adriatic Sea. In The Eastern Mediterranean as a Laboratory Basin for the Assessment of Contrasting Ecosystems; Malanotte-Rizzoli, P., Eremeev, V.N., Eds.; NATO Science Series; Springer: Dordrecht, The Netherlands, 1999; Volume 51, pp. 1–23.
  35. Hurrell, J.W.; Van Loon, H. Decadal Variations in Climate Associated with the North Atlantic Oscillation. Clim. Chang. 1997, 36, 301–326.
  36. Brunetti, M.; Maugeri, M.; Nanni, T. Changes in total precipitation, rainy days and extreme events in northeastern Italy. Int. J. Clim. 2001, 21, 861–871.
  37. Türkeş, M.; Erlat, E. Influences of the North Atlantic Oscillation on Precipitation Variability and Changes in Turkey. Nuovo C Della Soc. Ital. Di Fis. C 2006, 29, 117–135.
  38. Brunetti, M.; Maugeri, M.; Monti, F.; Nanni, T. Temperature and precipitation variability in Italy in the last two centuries from homogenised instrumental time series. Int. J. Clim. 2006, 26, 345–381.
  39. Hurrell, J.W. Decadal Trends in the North Atlantic Oscillation: Regional Temperatures and Precipitation. Science 1995, 269, 676–679.
  40. Margat, J.; Treyer, S. L’eau Des Méditerranéens: Situation et Perspectives. In Water for the People of the Mediterranean: Present and Future; Plan Bleu PNUE/PAM, MAP Technical Reports Series N° 158; PAM: Athènes, Greece, 2004.
  41. Gibelin, A.-L.; Déqué, M. Anthropogenic climate change over the Mediterranean region simulated by a global variable resolution model. Clim. Dyn. 2003, 20, 327–339.
  42. Milly, P.C.D.; Dunne, K.A.; Vecchia, A.V. Global pattern of trends in streamflow and water availability in a changing climate. Nature 2005, 438, 347–350.
  43. Norrant, C.; Douguédroit, A. Monthly and daily precipitation trends in the Mediterranean (1950–2000). Theor. Appl. Clim. 2005, 83, 89–106.
  44. Christensen, J.H.; Hewitson, B.; Busuioc, A.; Chen, A.; Gao, X.; Held, I.; Jones, R.; Kolli, R.K.; Kwon, W.T.; Laprise, R.; et al. Regional Climate Projections. In Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change; Solomon, S., Qin, D., Manning, M., Chen, Z., Marquis, M., Averyt, K.B., Tignor, M.M.B., Miller, H.L., Eds.; UNEP: Nairobi, Kenya, 2007; ISBN 0521705967.
  45. Giorgi, F.; Lionello, P. Climate change projections for the Mediterranean region. Glob. Planet. Chang. 2008, 63, 90–104.
  46. Grilli, F.; Accoroni, S.; Acri, F.; Aubry, F.B.; Bergami, C.; Cabrini, M.; Campanelli, A.; Giani, M.; Guicciardi, S.; Marini, M.; et al. Seasonal and Interannual Trends of Oceanographic Parameters over 40 Years in the Northern Adriatic Sea in Relation to Nutrient Loadings Using the EMODnet Chemistry Data Portal. Water 2020, 12, 2280.
  47. Aubry, F.B.; Berton, A.; Bastianini, M.; Bertaggia, R.; Baroni, A.; Socal, G. Seasonal Dynamics of Dinophysis in Coastal Waters of the NW Adriatic Sea (1990–1996). Bot. Mar. 2000, 43, 423–430.
  48. Acri, F.; Bastianini, M.; Aubry, F.B.; Camatti, E.; Boldrin, A.; Bergami, C.; Cassin, D.; De Lazzari, A.; Finotto, S.; Minelli, A.; et al. A long-term (1965–2015) ecological marine database from the LTER-Italy Northern Adriatic Sea site: Plankton and oceanographic observations. Earth Syst. Sci. Data 2020, 12, 215–230.
  49. Giani, M.; Djakovac, T.; Degobbis, D.; Cozzi, S.; Solidoro, C.; Umani, S.F. Recent changes in the marine ecosystems of the northern Adriatic Sea. Estuar. Coast. Shelf Sci. 2012, 115, 1–13.
  50. Grbec, B.; Dulcic, J.; Morovic, M. Long-term changes in landings of small pelagic fish in the eastern Adriatic-possible influence of climate oscillations over the Northern Hemisphere. Clim. Res. 2002, 20, 241–252.
  51. Coll, M.; Santojanni, A.; Palomera, I.; Arneri, E. Ecosystem assessment of the North-Central Adriatic Sea: Towards a multivariate reference framework. Mar. Ecol. Prog. Ser. 2010, 417, 193–210.
  52. Cabrini, M.; Cerino, F.; de Olazabal, A.; Di Poi, E.; Fabbro, C.; Fornasaro, D.; Goruppi, A.; Flander-Putrle, V.; Francé, J.; Gollasch, S.; et al. Potential transfer of aquatic organisms via ballast water with a particular focus on harmful and non-indigenous species: A survey from Adriatic ports. Mar. Pollut. Bull. 2018, 147, 16–35.
  53. Petrocelli, A.; Antolić, B.; Bolognini, L.; Cecere, E.; Cvitković, I.; Despalatović, M.; Falace, A.; Finotto, S.; Iveša, L.; Mačić, V.; et al. Port Baseline Biological Surveys and seaweed bioinvasions in port areas: What’s the matter in the Adriatic Sea? Mar. Pollut. Bull. 2019, 147, 98–116.
  54. Mozetič, P.; Cangini, M.; Francé, J.; Bastianini, M.; Aubry, F.B.; Bužančić, M.; Cabrini, M.; Cerino, F.; Čalić, M.; D’Adamo, R.; et al. Phytoplankton diversity in Adriatic ports: Lessons from the port baseline survey for the management of harmful algal species. Mar. Pollut. Bull. 2019, 147, 117–132.
  55. Azzurro, E.; Sbragaglia, V.; Cerri, J.; Bariche, M.; Bolognini, L.; Ben Souissi, J.; Busoni, G.; Coco, S.; Chryssanthi, A.; Fanelli, E.; et al. Climate change, biological invasions, and the shifting distribution of Mediterranean fishes: A large-scale survey based on local ecological knowledge. Glob. Chang. Biol. 2019, 25, 2779–2792.
  56. Zenetos, A.; Gofas, S.; Morri, C.; Rosso, A.; Violanti, D.; García Raso, J.E.; Cinar, M.E.; Almogi-Labin, A.; Ates, A.S.; Azzurro, E.; et al. Alien species in the Mediterranean Sea by 2012. A contribution to the application of European Union’s Marine Strategy Framework Directive (MSFD). Part 2. Introduction trends and pathways. Mediterr. Mar. Sci. 2012, 13, 328–352.
  57. Flander-Putrle, V.; Francé, J.; Mozetič, P. Phytoplankton Pigments Reveal Size Structure and Interannual Variability of the Coastal Phytoplankton Community (Adriatic Sea). Water 2021, 14, 23.
  58. Edwards, A.C.; Withers, P.J.A. Soil phosphorus management and water quality: A UK perspective. Soil Use Manag. 1998, 14, 124–130.
  59. Basterretxea, G.; Font-Muñoz, J.S.; Salgado-Hernanz, P.M.; Arrieta, J.; Hernández-Carrasco, I. Patterns of chlorophyll interannual variability in Mediterranean biogeographical regions. Remote Sens. Environ. 2018, 215, 7–17.
  60. Zoppini, A.; Ademollo, N.; Bensi, M.; Berto, D.; Bongiorni, L.; Campanelli, A.; Casentini, B.; Patrolecco, L.; Amalfitano, S. Impact of a river flood on marine water quality and planktonic microbial communities. Estuar. Coast. Shelf Sci. 2019, 224, 62–72.
  61. Toffolo, M.M.; Grilli, F.; Prandi, C.; Goffredo, S.; Marini, M. Extreme Flooding Events in Coastal Lagoons: Seawater Parameters and Rainfall over A Six-Year Period in the Mar Menor (SE Spain). J. Mar. Sci. Eng. 2022, 10, 1521.
  62. Guzzella, L.; Paolis, A. Polycyclic Aromatic Hydrocarbons in Sediments of the Adriatic Sea. Mar. Pollut. Bull. 1994, 28, 159–165.
  63. Viganò, L.; Guzzella, L.; Marziali, L.; Mascolo, G.; Bagnuolo, G.; Ciannarella, R.; Roscioli, C. The last 50 years of organic contamination of a highly anthropized tributary of the Po River (Italy). J. Environ. Manag. 2023, 326, 116665.
  64. Cozzi, S.; Giani, M. River water and nutrient discharges in the Northern Adriatic Sea: Current importance and long term changes. Cont. Shelf Res. 2011, 31, 1881–1893.
  65. Lønborg, C.; Markager, S. Nitrogen in the Baltic Sea: Long-term trends, a budget and decadal time lags in responses to declining inputs. Estuar. Coast. Shelf Sci. 2021, 261, 107529.
  66. Provini, A.; Crosa, G.; Marchetti, R. Nutrient Export from the Po and Adige River Basins over the Last 20 Years. In Proceedings of the International Conference on Marine Coastal Eutrophication, Bologna, Italy, 21–24 March 1992; Vollenweider, R.A., Marchetti, R., Viviani, R., Eds.; Elsevier: Amsterdam, The Netherlands, 1992; Volume 2, pp. 291–313.
  67. Rabalais, N.N.; Turner, R.E.; Díaz, R.J.; Justić, D. Global change and eutrophication of coastal waters. ICES J. Mar. Sci. 2009, 66, 1528–1537.
  68. Howarth, R.; Chan, F.; Conley, D.J.; Garnier, J.; Doney, S.C.; Marino, R.; Billen, G. Coupled biogeochemical cycles: Eutrophication and hypoxia in temperate estuaries and coastal marine ecosystems. Front. Ecol. Environ. 2011, 9, 18–26.
  69. Degobbis, D.; Smodlaka, N.; Pojed, I.; Škrivanić, A.; Precali, R. Increased eutrophication of the Northern Adriatic sea. Mar. Pollut. Bull. 1979, 10, 298–301.
  70. Justić, D.; Legović, T.; Rottini-Sandrini, L. Trends in oxygen content 1911–1984 and occurrence of benthic mortality in the northern Adriatic Sea. Estuar. Coast. Shelf Sci. 1987, 25, 435–445.
  71. Boldrin, A.; Carniel, S.; Giani, M.; Marini, M.; Aubry, F.B.; Campanelli, A.; Grilli, F.; Russo, A. Effects of bora wind on physical and biogeochemical properties of stratified waters in the northern Adriatic. J. Geophys. Res. Atmos. 2009, 114, C08S92.
  72. Kralj, M.; Lipizer, M.; Čermelj, B.; Celio, M.; Fabbro, C.; Brunetti, F.; Francé, J.; Mozetič, P.; Giani, M. Hypoxia and dissolved oxygen trends in the northeastern Adriatic Sea (Gulf of Trieste). Deep. Sea Res. Part II Top. Stud. Oceanogr. 2019, 164, 74–88.
  73. Smodlaka, N. Primary production of the organic matter as an indicator of the eutrophication in the northern Adriatic sea. Sci. Total Environ. 1986, 56, 211–220.
  74. Degobbis, D.; Fonda-Umani, S.; Franco, P.; Malej, A.; Precali, R.; Smodlaka, N. Changes in the northern Adriatic ecosystem and the hypertrophic appearance of gelatinous aggregates. Sci. Total Environ. 1995, 165, 43–58.
  75. Precali, R.; Giani, M.; Marini, M.; Grilli, F.; Ferrari, C.R.; Pečar, O.; Paschini, E. Mucilaginous aggregates in the northern Adriatic in the period 1999–2002: Typology and distribution. Sci. Total Environ. 2005, 353, 10–23.
  76. Giani, M.; Berto, D.; Zangrando, V.; Castelli, S.; Sist, P.; Urbani, R. Chemical characterization of different typologies of mucilaginous aggregates in the Northern Adriatic Sea. Sci. Total Environ. 2005, 353, 232–246.
  77. Faganeli, J.; Kovač, N.; Leskovšek, H.; Pezdič, J. Sources and fluxes of particulate organic matter in shallow coastal waters characterized by summer macroaggregate formation. Biogeochemistry 1995, 29, 71–88.
  78. Solidoro, C.; Bastianini, M.; Bandelj, V.; Codermatz, R.; Cossarini, G.; Canu, D.M.; Ravagnan, E.; Salon, S.; Trevisani, S. Current state, scales of variability, and trends of biogeochemical properties in the northern Adriatic Sea. J. Geophys. Res. Atmos. 2009, 114, C07S91.
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Subjects: Environmental Sciences
Contributors MDPI registered users' name will be linked to their SciProfiles pages. To register with us, please refer to https://encyclopedia.pub/register :
Mauro Marini
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Federica Grilli
View Times: 505
Entry Collection: Environmental Sciences
Revisions: 2 times (View History)
Update Date: 01 Sep 2023
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