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Broeck, Nathalie Van Den; Moutin, Thierry

doi:10.1023/a:1016308931115

Cited by 12 publications

(3 citation statements)

References 42 publications

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“…The mean concentration of nitrate (more than 80% of TN-input from the Rhone to the MS) has increased by about 50% during the 1980s and 1990s. A similar TP increase is probable at the same time [84]. The most representative groups of phytoplankton identified along the Mediterranean French coast are dinoflagellates and diatoms.…”

Section: North-western Mssupporting

confidence: 52%

“…It represents an enclosed bay with particular features located in the north-western Mediterranean Sea, extending from Catalonia to Toulon. The Gulf's eutrophic status stems from receiving a large amount of rural, urbanized, and industrialized discharges through the Rhone River, which is the most important source of water and organic compounds in the MS [83][84][85]. The mean concentration of nitrate (more than 80% of TN-input from the Rhone to the MS) has increased by about 50% during the 1980s and 1990s.…”

Section: North-western Msmentioning

confidence: 99%

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Review of Harmful Algal Blooms in the Coastal Mediterranean Sea, with a Focus on Greek Waters

Tsikoti

Genitsaris

2021

Diversity

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Anthropogenic marine eutrophication has been recognized as one of the major threats to aquatic ecosystem health. In recent years, eutrophication phenomena, prompted by global warming and population increase, have stimulated the proliferation of potentially harmful algal taxa resulting in the prevalence of frequent and intense harmful algal blooms (HABs) in coastal areas. Numerous coastal areas of the Mediterranean Sea (MS) are under environmental pressures arising from human activities that are driving ecosystem degradation and resulting in the increase of the supply of nutrient inputs. In this review, we aim to present the recent situation regarding the appearance of HABs in Mediterranean coastal areas linked to anthropogenic eutrophication, to highlight the features and particularities of the MS, and to summarize the harmful phytoplankton outbreaks along the length of coastal areas of many localities. Furthermore, we focus on HABs documented in Greek coastal areas according to the causative algal species, the period of occurrence, and the induced damage in human and ecosystem health. The occurrence of eutrophication-induced HAB incidents during the past two decades is emphasized.

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Section: North-western Mssupporting

confidence: 52%

Section: North-western Msmentioning

confidence: 99%

Review of Harmful Algal Blooms in the Coastal Mediterranean Sea, with a Focus on Greek Waters

Tsikoti

Genitsaris

2021

Diversity

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“…Following Roux et al (1989) and Habersack and Piégay (2008), comparative analyses of river changes, notably in Europe, have become a critical issue for addressing a series of questions of interest to geographers, historians, engineers, ecologists, geologists, and geochemists. For example, historical maps can help to better contextualize sediment core samples and geophysical surveys when investigating floodplain evolution (Salvador and Berger, 2014) and delta evolution during the Holocene (Vella et al, 2005). Historical cartographic and topo-bathymetric datasets are also of interest to hydrologists analysing flood frequency based on historical geometries (Billy et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Historical cartographic and topo-bathymetric database on the French Rhône River (17th–20th century)

Arnaud

Chanu

Grillot

et al. 2021

Earth Syst. Sci. Data

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Abstract. Space and time analyses of channel changes, especially within large rivers subject to high levels of human impact, are critical to address multiple questions about rivers in the Anthropocene era. The reconstruction of long-term (> 150 year) evolutionary trajectories permits an understanding of how natural and anthropogenic factors impact hydromorphological and ecological processes in rivers, helps with the design of sustainable management and restoration options, and may also help in the assessment of future changes. However, the reconstruction of channel changes can be challenging: historical data are often scattered across many archives, and the quantity and accuracy of information generally decreases as one goes back in time. This data article provides a historical database of 350 cartographic and topo-bathymetric resources on the French Rhône River (530 km in length) compiled from the 17th to mid-20th century, with a temporal focus prior to extensive river training (1860s). The data were collected in 14 national, regional, and departmental archive services. A table describes the properties of each archived data item and its associated iconographic files. Some of the historical maps are available in a georeferenced format. A GIS layer enables one-click identification of all archive data available for a given reach of the French Rhône River. This database provides substantial new material for deeper analyses of channel changes over a longer time period and at a finer time step compared with previously available data. The database has several potential applications in geomorphology, retrospective hydraulic modelling, historical ecology, and river restoration, as well as permitting comparisons with other multi-impacted rivers worldwide. The dataset is available at https://doi.org/10.1594/PANGAEA.922437 (Arnaud et al., 2020a). Iconographic extracts of the 350 archived items are available at http://photo.driihm.fr/index.php/category/52 (last access: 2 May 2021).

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Understanding the unique biogeochemistry of the Mediterranean Sea: Insights from a coupled phosphorus and nitrogen model

Powley

Krom

Cappellen

2017

Global Biogeochemical Cycles

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The Mediterranean Sea (MS) is an oligotrophic basin whose offshore water column exhibits low dissolved inorganic phosphorus (P) and nitrogen (N) concentrations, unusually high nitrate (NO3) to phosphate (PO4) ratios, and distinct biogeochemical differences between the Western Mediterranean Sea (WMS) and Eastern Mediterranean Sea (EMS). A new mass balance model of P and N cycling in the WMS is coupled to a pre‐existing EMS model to understand these biogeochemical features. Estimated land‐derived inputs of reactive P and N to the WMS and EMS are similar per unit surface area, but marine inputs are 4 to 5 times greater for the WMS, which helps explain the approximately 3 times higher primary productivity of the WMS. The lateral inputs of marine sourced inorganic and organic P support significant fractions of new production in the WMS and EMS, similar to subtropical gyres. The mass balance calculations imply that the MS is net heterotrophic: dissolved organic P and N entering the WMS and EMS, primarily via the Straits of Gibraltar and Sicily, are mineralized to PO4 and NO3 and subsequently exported out of the basin by the prevailing anti‐estuarine circulation. The high deepwater (DW) molar NO3:PO4 ratios reflect the high reactive N:P ratio of inputs to the WMS and EMS, combined with low denitrification rates. The lower DW NO3:PO4 ratio of the WMS (21) compared to the EMS (28) reflects lower reactive N:P ratios of inputs to the WMS, including the relatively low N:P ratio of Atlantic surface water flowing into the WMS.

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Untitled

Cited by 12 publications

References 42 publications

Review of Harmful Algal Blooms in the Coastal Mediterranean Sea, with a Focus on Greek Waters

Review of Harmful Algal Blooms in the Coastal Mediterranean Sea, with a Focus on Greek Waters

Historical cartographic and topo-bathymetric database on the French Rhône River (17th–20th century)

Understanding the unique biogeochemistry of the Mediterranean Sea: Insights from a coupled phosphorus and nitrogen model

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