2004
DOI: 10.4081/jlimnol.2004.199
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Trophic conditions of marine coastal waters: experience in applying the Trophic Index TRIX to two areas of the Adriatic and Tyrrhenian seas

Abstract: This paper is an extension of an earlier paper on a Trophic Index TRIX, a linear combination of the log of 4 state variables: ChA, aD%O, minN & TP (Vollenweider et al. 1998), to characterizing succinctly the trophic levels of coastal marine areas, and to discuss questions that since have arisen in applying and developing the index further. This entails in depth review of some procedural aspects such as data processing including transformation of rough data; the statistical distribution of TRIX; comparisons… Show more

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Cited by 132 publications
(55 citation statements)
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“…TRIX values have been further aggregated into four trophic regimes (Rinaldi and Giovanardi, 2011): "elevated", "good", "mediocre", and "bad" (Table 1). Referring to Italian waters, TRIX values exceeding 6 are typical of highly productive coastal areas, characterized by frequent episodes of sea bottom anoxia (Giovanardi and Vollenweider, 2004).…”
Section: Trix Equation and Parameterizationsmentioning
confidence: 99%
See 1 more Smart Citation
“…TRIX values have been further aggregated into four trophic regimes (Rinaldi and Giovanardi, 2011): "elevated", "good", "mediocre", and "bad" (Table 1). Referring to Italian waters, TRIX values exceeding 6 are typical of highly productive coastal areas, characterized by frequent episodes of sea bottom anoxia (Giovanardi and Vollenweider, 2004).…”
Section: Trix Equation and Parameterizationsmentioning
confidence: 99%
“…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%
“…В свою очередь, при максимальных зна-чениях вкладов N (47 %), P (28 %), модуля вклада Ch (34 %) значение E-TRIX минимально (3,59). Аналогичная ситуация наблюдается для Южной бухты: при максимальном значении E-TRIX (5,53) относительные вклады N (40 %) и модуля Ch (8 %) были минимальны, и наоборот, при максимальных значе-ниях вкладов N (64 %), D%O (31 %) и модуля Ch (62 %) значение E-TRIX ми-нимально (3,30).…”
Section: рис 3 годовой ход индекса E-trix южной (---) и севастопольunclassified
“…В различных работах авторами используется индекс E-TRIX, расчет кото-рого выполняется по данным мониторинговых наблюдений для различных мелководных акваторий: взморья Адриатического и Тирренского морей [3,4], отдельных заливов Мраморного моря [5], шельфовой зоны северо-восточной части Черного моря [6], Придунайского района, Болгарского взмо-рья, Одесского залива северо-западной части Черного моря [7,8], Севасто-польского взморья [9,10].…”
unclassified
“…TRIX has recently become one of the indices used for monitoring the trophic state conditions in coastal waters (Balkıs et al, 2012;Baytut et al, 2010;Dyatlov et al, 2010;Giovanardi and Vollenweider, 2004;Medinets et al, 2010;Moncheva et al, 2002;Vargas-González et al, 2014). It is ecologically relevant, regionally applied and considered internationally (OSPAR Commission, 2012).…”
Section: E Esenmentioning
confidence: 99%