Climate projections of the Adriatic Sea: role of river release

Frontiers in Climate, Journal Year: 2024, Volume and Issue: 6

Published: April 29, 2024

The Adriatic Sea, characterized by unique local features in comparison to the broader Mediterranean stands out as a highly susceptible region climate change. In this context, our study involves focused downscaling approach, concentrating on water cycle. This encompasses integrated modeling at mesoscale, covering atmosphere, hydrology, and marine general circulation. period spans from 1992 2050, considering high emission scenario RCP8.5. We aim evaluating how river release projection affects density stratification sea level rise. Indeed, is found decrease approximately 35% mid-term future condition of column with differences between Northern Southern sub-basins. projected runoff has major impact sub-basin, where haline-dominated foreseen salinization prevails heating through whole column. Conversely, lower changes other mechanisms may play role, e.g., changing properties entering Otranto Strait intermediate deep provides first evidence decreasing discharge locally reduces stratification, increases dense water, mitigates rise thus acting opposite direction global warming. To minimize uncertainty coastal ocean projections around world, it essential that integrates high-resolution hydrology hydrodynamics models correctly reproduce link surface buoyancy resulting dynamics.

Language: Английский

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Assessment of the eutrophication status at Mediterranean sub-basin scale, within the European Marine Strategy Framework Directive

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 945, P. 173876 - 173876

Published: June 14, 2024

Language: Английский

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The overlooked impacts of freshwater scarcity on oceans as evidenced by the Mediterranean Sea

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Feb. 3, 2025

Water stress is an urgent issue in many regions worldwide, particularly southern European countries. This study reveals the consequences of decreased freshwater flow on marine ecosystems Mediterranean Sea due to climate change and escalating water demands. A 41% reduction river may result a 10% decline primary productivity 6% decrease biomass commercial fish invertebrate species. Regional reductions could be as high 12% 35%, disrupting coastal their related socio-economic sectors. The findings emphasize importance considering nutrient load changes management strategies incorporating ecosystem requirements into environmental for bodies. Integrated, source-to-sink approaches are crucial sustainable resource utilization. Freshwater demand cause strong species biomass, affecting activities.

Language: Английский

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Overview of Marine Protected Areas and Sites of Particular Biodiversity Value in the Adriatic—Ionian Region (EUSAIR)

Diversity, Journal Year: 2025, Volume and Issue: 17(2), P. 131 - 131

Published: Feb. 14, 2025

Marine protected areas (MPAs) are an important tool for conserving biodiversity and ensuring the sustainable use of marine ecosystem services. This study examines extent MPAs in Adriatic-Ionian region (EUSAIR). The analysis focuses on nationally designated Natura 2000 sites (their parts), as well importance that not officially protected. With a area 484,017 km2, EUSAIR has 46 348 2021, which together represent 16,347 km2 or 3.4% region’s total area. However, strictly IUCN categories I II account only 0.07% area, highlighting significant gap achieving global EU targets. In addition, around 30.75% is classified based various conservation instruments, but legally These findings underline urgent need enhanced protection, improved management stricter measures to achieve targets Kunmingand Montreal Global Biodiversity Frameworks Strategy 2030, aims have 30% 10% under strict protection by 2030. Achieving 2030 will require expansion intensified efforts designate new MPAs, integrate existing high ensure effective consistent with objectives.

Language: Английский

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Extraordinary mucilage event in the northern Adriatic in 2024—a glimpse into the future climate?

Estuarine Coastal and Shelf Science, Journal Year: 2025, Volume and Issue: unknown, P. 109222 - 109222

Published: Feb. 1, 2025

Language: Английский

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Cluster analysis of long-term phytoplankton data from the Northern Adriatic reveals environmental influences and disruptions in seasonal patterns

Frontiers in Ecology and Evolution, Journal Year: 2025, Volume and Issue: 13

Published: March 3, 2025

The Northern Adriatic is a dynamic and the most productive part of Sea. phytoplankton is, as many studies in this area showed, under heavy influence freshwater inputs anthropogenic pressures. Cluster analysis more than 20 year data set across steep spatio-temporal, ecological gradients on longitudinal transect northern Adriatic, allowed us to identify significant reoccurring species assemblages. Those clusters show stable seasonality relation environmental conditions are presumed be cornerstones important ecosystem services provided by phytoplankton. Our results demonstrate that disrupted, leading destabilisation seasonal patterns biodiversity primary producers. During last years, characterised dominating were replaced coexistence several species. Overall frequency dense blooms single appears decline. Multivariate showed possible reasons might lie oligotrophication increased salinity dynamics. suggest importance applicability cluster taxon based long term sets elucidate functional changes.

Language: Английский

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The Influence of Aquaculture and a Natural Environmental Gradient on Shell Landmark Variation of the Mediterranean Mussel (Mytilus galloprovincialis Lamarck, 1819) From the Eastern Adriatic Sea

Journal of Morphology, Journal Year: 2025, Volume and Issue: 286(4)

Published: March 26, 2025

Geometric morphometry is effective in distinguishing bivalve species and populations, including the economically environmentally important Mediterranean mussel, Mytilus galloprovincialis. Although widely distributed, shell shape variation M. galloprovincialis along eastern Adriatic Sea has been infrequently studied. Farming practices environmental conditions may affect development of shape, as reported genus from numerous locations globally. Building on earlier genetic analyses mussels collected a natural gradient, this study aimed to identify landmark differentiation between wild cultured populations among northern, middle, southern using geometric morphometric approach. Samples 12 sites Croatia, Montenegro, Albania, 4 aquaculture farms, were examined for 9 internal landmarks. Wild exhibited more extended posterior adductor muscle scar elongated compared farmed populations. Mussels low salinity environments north south an high environments. Southern scar, with elongation lateral ligament ventral umbo orientation that caused concave border northern The differences Sea, such reduced Boka Kotorska Bay (Montenegro) Limski (Croatia) north, likely play role influencing variability These results be applied farming so high-quality spat are source match farm site which transferred. Overall, these provide valuable insight into how landmarks respond at large (hundreds kilometres) spatial scale.

Language: Английский

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Ocean warming, marine heatwaves and phytoplankton biomass: long-term trends in the Northern Adriatic Sea

Estuarine Coastal and Shelf Science, Journal Year: 2025, Volume and Issue: unknown, P. 109282 - 109282

Published: March 1, 2025

Language: Английский

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Idiosyncratic patterns of Chlorophyll-a anomalies in response to marine heatwaves in the Adriatic Sea (Mediterranean Sea) over the last two decades

Marine Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 107144 - 107144

Published: April 1, 2025

In the open ocean, marine heatwaves (MHWs) have been associated to a decline of Chlorophyll-a (Chl-a) concentration in tropical and temperate areas while, at higher latitudes, they seem enhance phytoplankton productivity. Currently, uncertainties remain on outcomes MHWs primary production coastal heterogenous regions. We analyzed long-term modeled satellite-derived data sea surface temperature Chl-a Adriatic Sea (Mediterranean Sea), semi-enclosed basin where open-sea environmental conditions co-occur, explore responses MHWs. found that both low high anomalies were strictly dependent MHWs, although following direct or inverse relationships different areas, as consequence regional-scale heterogeneities nutrient availability, riverine inputs, circulation geomorphology. Along west coast shallow North Central Adriatic, frequency, duration intensity corresponded frequency peaks and/or increased anomalies, suggesting pronounced fluctuations with intense blooms alternating extremely events. Conversely, offshore deeper especially South inversely correlated indicating possible reduction biomass organic matter flow towards floor. Prolonged may therefore drive shifts ecosystem-wide effects pelagic areas. These multifaceted MHW-Chl-a interactions observed emphasize need for context-specific assessments environmentally complex regions develop management strategies addressing ecological socioeconomic issues arising from unrelenting increase anomalies.

Language: Английский

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Positive correlation between the Po River discharge and ocean colour trends of Chl and TSM in the Adriatic Sea

Frontiers in Remote Sensing, Journal Year: 2025, Volume and Issue: 6

Published: April 10, 2025

Coastal areas represent delicate and complex environments due to the interconnection between land sea, where marine, fluvial anthropogenic stressors combine threatening undermining coastal health. Sea level rise increasing storminess, for instance, lead more frequent flooding habitat loss erosion; sediment supply by rivers, on other hand, helps balance restore loss. However, excessive riverine nutrient inputs may eutrophication phenomena, putting ecosystem as well communities at serious risk. Here, we compute high resolution (300 m) Chlorophyll-a (Chl) Total Suspended Matter (TSM, a proxy concentration) trends over Adriatic using single sensors MERIS (from 2003 2012) OLCI 2017–2024) data, study response of marine human and/or environmental pressures, thus detecting likely subject starvation. Such an analysis is complemented Po River discharge data investigate role river outputs in shaping observed within basin. Our results reveal Chl TSM northern part basin being positively correlated with during investigated period, both data. Increases/decreases outflow resulted positive/negative trends. Although negative trend was documented last 25 years, load fluctuations regulate long- short-term, local North This result suggests direct relationship existing statistical delta areas.

Language: Английский

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