<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>We investigate the distribution of various fractions phosphorus (P) in sediments at the coastal area of Semarang City. Samples were collected from thirteen locations at the Banjir Kanal Barat, port and Banjir Kanal Timur. Sedimentary parameters such as sand, silt, clay, and organic carbon were analysed in order to find out their relation with various P fractions. The sediment types are predominantly sandy and silty with low clay content. Among all fractions (loosely bound/Ads-P), bound calcium/Ca-P), iron bound/Fe-P), and organic fraction/OP), Ca-P fractions constitute the largest portion (71.2 %) followed by iron-bound (17.0 %), organic fraction (10.4 %) and loosely bound (1.4 %). The bioavailable P fractions range from 20.2 % to 42.0 % of the total P (TP) content with average 28.8 %. Relatively high Ads-P content is observed in offshore locations with comparatively high mud percentage as compared with the near-shore locations. The order of abundance of the main forms of P in the Semarang coastal surface sediments is as follows: Ca-P > Fe-P > OP > Ads-P. The concentration of this fraction causes the abundance of chlorophyll-<italic>a</italic> from 9.09 to 21.09 mg/m<sup>3</sup>.</p>
</abstract>

We investigate the distribution of various fractions phosphorus (P) in sediments at the coastal area of Semarang City. Samples were collected from thirteen locations at the Banjir Kanal Barat, port and Banjir Kanal Timur. Sedimentary parameters such as sand, silt, clay, and organic carbon were analysed in order to find out their relation with various P fractions. The sediment types are predominantly sandy and silty with low clay content. Among all fractions (loosely bound/Ads-P), bound calcium/Ca-P), iron bound/Fe-P), and organic fraction/OP), Ca-P fractions constitute the largest portion (71.2 %) followed by iron-bound (17.0 %), organic fraction (10.4 %) and loosely bound (1.4 %). The bioavailable P fractions range from 20.2 % to 42.0 % of the total P (TP) content with average 28.8 %. Relatively high Ads-P content is observed in offshore locations with comparatively high mud percentage as compared with the near-shore locations. The order of abundance of the main forms of P in the Semarang coastal surface sediments is as follows: Ca-P > Fe-P > OP > Ads-P. The concentration of this fraction causes the abundance of chlorophyll-a from 9.09 to 21.09 mg/m3.

Fractionation and Bioavailability of Phosphorus and Its Relation to Chlorophyll-<italic>a</italic> at the Coastal Area of Semarang City

Department of Oceanography, Faculty of Fisheries and Marine Science

Ecological Chemistry and Engineering S

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fractionation and Bioavailability of Phosphorus and Its Relation to Chlorophyll- at the Coastal Area of Semarang City

We investigate the distribution of various fractions phosphorus (P) in sediments at the coastal area of Semarang City. Samples were collected from thirteen...

Fractionation and Bioavailability of Phosphorus and Its Relation to Chlorophyll-a at the Coastal Area of Semarang City

Publié en ligne: 17 août 2022

Pages: 183 - 197

DOI: https://doi.org/10.2478/eces-2022-0014

Mots clés
fractionation, phosphorus, surface coastal sediments, chlorophyll-

© 2022 Lilik Maslukah et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fractionation and Bioavailability of Phosphorus and Its Relation to Chlorophyll-a at the Coastal Area of Semarang City

Publié en ligne: 17 août 2022

Pages: 183 - 197

DOI: https://doi.org/10.2478/eces-2022-0014

Mots clésfractionation, phosphorus, surface coastal sediments, chlorophyll-

© 2022 Lilik Maslukah et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
fractionation, phosphorus, surface coastal sediments, chlorophyll-