QUANTIFICATION OF INDIVIDUAL PHOSPHORUS FORMS IN SURFACE SEDIMENTS OF THE SOUTHERN CASPIAN SEA - IRANIAN COAST: A SEQUENTIAL EXTRACTION PROCEDURE

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NIYAZI L.; CHAICHI M.J.; NASROLLAHZADEH SARAVI H.; NAJAFPOUR S.

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Journal Paper

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Journal: Iranian Journal of Fisheries Sciences Year:2016 | Volume:15 | Issue:2 Page(s): 677-686

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Title

QUANTIFICATION OF INDIVIDUAL PHOSPHORUS FORMS IN SURFACE SEDIMENTS OF THE SOUTHERN CASPIAN SEA - IRANIAN COAST: A SEQUENTIAL EXTRACTION PROCEDURE

Author(s)

NIYAZI L. | CHAICHI M.J. | NASROLLAHZADEH SARAVI H. | NAJAFPOUR S. | Issue Writer Certificate

Keywords

PHOSPHORUS FRACTIONATION

SURFACE SEDIMENT

CASPIAN SEA

IRANIAN COAST

Abstract

Seventy Two sediments from four stations (Anzali, Tonekabon, Noshahr and Amirabad), located in CASPIAN SEA-Iranian coast were examined on the basis of Pfractionation in autumn and winter of 2013-2014. Several forms of the phosphorus in sediment were separated and extracted according to sequential extraction method. Then the extracted phosphorus in each fraction was determined by UV–Vis spectrophotometry. In addition, Total concentrations of Ca, Fe and Al in sediment fractions were also measured by Atomic absorption spectroscopy. In autumn the rank order of P-fractions was: Ca-P>Residual-P>BD-P>Al-P>loosely-P and in winter it was: Ca-P>BD-P>Residual-P>Al-P>loosely adsorbed-P. In both season the loosely adsorbed phosphorus (NH4Cl–P) represented<1% of the sedimentary inorganic phosphorus, while the reductant phosphorus (BD–P) ranged from 2.7 to 4%. The calcium bound phosphorus (Ca-P or HCl–P) showed considerable contribution (89-91%) to the sedimentary inorganic P-loads. The metal oxide bound phosphorus (Al-P or NaOH–P) was 1.2-1.5% and Residual-P was 2.3-4.5%. Concentration of BD- P increased with increasing depth in all stations and the concentration of other fractions increased in most stations. Sampling seasons had significant effect on variance of most P-fractions and other sediment features. TP and BD-P were positively correlated with Fetot (p<0.05).

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APA: Copy

NIYAZI, L., CHAICHI, M.J., NASROLLAHZADEH SARAVI, H., & NAJAFPOUR, S.. (2016). QUANTIFICATION OF INDIVIDUAL PHOSPHORUS FORMS IN SURFACE SEDIMENTS OF THE SOUTHERN CASPIAN SEA - IRANIAN COAST: A SEQUENTIAL EXTRACTION PROCEDURE. IRANIAN JOURNAL OF FISHERIES SCIENCES, 15(2), 677-686. SID. https://sid.ir/paper/706097/en

Vancouver: Copy

NIYAZI L., CHAICHI M.J., NASROLLAHZADEH SARAVI H., NAJAFPOUR S.. QUANTIFICATION OF INDIVIDUAL PHOSPHORUS FORMS IN SURFACE SEDIMENTS OF THE SOUTHERN CASPIAN SEA - IRANIAN COAST: A SEQUENTIAL EXTRACTION PROCEDURE. IRANIAN JOURNAL OF FISHERIES SCIENCES[Internet]. 2016;15(2):677-686. Available from: https://sid.ir/paper/706097/en

IEEE: Copy

L. NIYAZI, M.J. CHAICHI, H. NASROLLAHZADEH SARAVI, and S. NAJAFPOUR, “QUANTIFICATION OF INDIVIDUAL PHOSPHORUS FORMS IN SURFACE SEDIMENTS OF THE SOUTHERN CASPIAN SEA - IRANIAN COAST: A SEQUENTIAL EXTRACTION PROCEDURE,” IRANIAN JOURNAL OF FISHERIES SCIENCES, vol. 15, no. 2, pp. 677–686, 2016, [Online]. Available: https://sid.ir/paper/706097/en

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