Classification of the Caspian Sea coastal waters based on trophic index and numerical analysis

Shahrban, Mahshid; Etemad‐Shahidi, Amir

doi:10.1007/s10661-009-0897-6

Cited by 13 publications

(5 citation statements)

References 11 publications

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“…e TRIX has been applied to many ecosystems of coastal marine waters, such as the Tyrrhenian [33] and the Caspian Seas [34], Bizerte Lagoon in Tunisia [35], and the Greek coastal lagoon [36] are among others.…”

Section: Discussionmentioning

confidence: 99%

Assessment of the Trophic Status of the South Lagoon of Tunis (Tunisia, Mediterranean Sea): Geochemical and Statistical Approaches

Abidi

Amor

Gueddari

2018

Journal of Chemistry

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The trophic status assessment of the South Lagoon of Tunis, a shallow Mediterranean coastal area after its restoration, is addressed herein with respect to its various environmental settings which are taken as indicators of water quality. The lagoon had, in the past, witnessed severe environmental quality issues. To resolve these problems, a large restoration project of the lagoon was undertaken which consisted of dredging the bottom sediments removing areas of water stagnation and improving water circulation. After this restoration work, the lagoon morphology has radically changed. In this paper, we attempt to evaluate the lagoon water’s trophic state to analyze the eutrophication risk after almost 16 years. In order to achieve these purposes, two water quality monitoring campaigns were conducted (July 2013 and February 2014). Natural and anthropogenic factors controlling the nutrient content of the lagoon water have been assessed through both geochemical methods and multivariate statistical tools. The results show that the nutrients are from external sources due to the discharge of municipal and industrial wastewater from the surrounding city of the catchment in the lagoon’s south side. According to the TRIX index, the lagoon remains eutrophic presenting a “poor” water quality, notwithstanding the engineering project due to the high level of nutrients.

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Section: Discussionmentioning

confidence: 99%

Assessment of the Trophic Status of the South Lagoon of Tunis (Tunisia, Mediterranean Sea): Geochemical and Statistical Approaches

Abidi

Amor

Gueddari

2018

Journal of Chemistry

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“…Higher TRIX values represent highly productive waters and trophic levels (Penna et al, 2004). The TRIX index has been used for assessing eutrophication in the Baltic Sea (Pettine et al, 2007;Primpas and Karydis, 2011), the Black Sea (Moncheva et al, 2002;Parkhomenko et al, 2003), the Caspian Sea (Nasrollahzadeh et al, 2008;Shahrban and Etemad-Shahidi, 2010) and the Adriatic Sea (Giovanardi and Vollenweider, 2004;Mozetič et al, 2008).…”

Section: Trophic Index Trixmentioning

confidence: 99%

Real-time eutrophication status evaluation of coastal waters using support vector machine with grid search algorithm

Kong

Sun

et al. 2017

Marine Pollution Bulletin

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“…TRIX covers a wide range of trophic conditions from oligotrophy to eutrophy, and it has been applied to coastal marine waters in several European seas: the Adriatic Sea and the Tyrrhenian Sea (Giovanardi and Vollenweider, 2004), the Black Sea (Kovalova and Medinets, 2012;Baytut, 2010;Dyatlov et al, 2010;Medinets et al, 2010;Moncheva and Doncheva, 2000;Moncheva et al, 2002;Zaika, 2003), the eastern Mediterranean Sea (Tugrul et al, 2011), the Aegean Sea (Yucel-Gier et al, 2011), the Marmara Sea (Balkis et al, 2012), the Caspian Sea (Shahrban and Etemad-Shahidi, 2010), the Mar Menor (Salas et al, 2008), the Persian Gulf (Zoriasatein et al, 2013), and the Gulf of Finland (Vaschetta et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Observed and simulated trophic index (TRIX) values for the Adriatic Sea basin

Fiori

Zavatarelli

Pinardi

et al. 2016

Nat. Hazards Earth Syst. Sci.

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Abstract. The main scope of the Marine Strategy Framework Directive is to achieve good environmental status (GES) of the EU's marine waters by 2020, in order to protect the marine environment more effectively. The trophic index (TRIX) was developed by Vollenweider in 1998 for the coastal area of Emilia-Romagna (northern Adriatic Sea) and was used by the Italian legislation to characterize the trophic state of coastal waters.We compared the TRIX index calculated from in situ data ("in situ TRIX") with the corresponding index simulated with a coupled physics and biogeochemical numerical model ("model TRIX") implemented in the overall Adriatic Sea. The comparison between in situ and simulated data was carried out for a data time series on the Emilia-Romagna coastal strip. This study shows the compatibility of the model with the in situ TRIX and the importance of the length of the time series in order to get robust index estimates. The model TRIX is finally calculated for the whole Adriatic Sea, showing trophic index differences across the Adriatic coastal areas.

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Classification of the Caspian Sea coastal waters based on trophic index and numerical analysis

Cited by 13 publications

References 11 publications

Assessment of the Trophic Status of the South Lagoon of Tunis (Tunisia, Mediterranean Sea): Geochemical and Statistical Approaches

Assessment of the Trophic Status of the South Lagoon of Tunis (Tunisia, Mediterranean Sea): Geochemical and Statistical Approaches

Real-time eutrophication status evaluation of coastal waters using support vector machine with grid search algorithm

Observed and simulated trophic index (TRIX) values for the Adriatic Sea basin

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