Influence of Iron Availability on Nutrient Utilization and Phytoplankton Growth in the Syrian Coast

International Journal of Agriculture & Environmental Science

© 2018 by SSRG - IJAES Journal

Volume 5 Issue 6

Year of Publication : 2018

Authors : Hazem Krawi, Firuz Darwich, Hussam Eddin Laika, Samar Joulak

10.14445/23942568/IJAES-V5I6P108

How to Cite?

Hazem Krawi, Firuz Darwich, Hussam Eddin Laika, Samar Joulak, "Influence of Iron Availability on Nutrient Utilization and Phytoplankton Growth in the Syrian Coast," SSRG International Journal of Agriculture & Environmental Science, vol. 5,  no. 6, pp. 45-53, 2018. Crossref, https://doi.org/10.14445/23942568/IJAES-V5I6P108

Abstract:

This research aims to study the effect of iron enrichment on the growth of phytoplankton and nutrients available in some areas of the Syrian coast. The experiment was conducted during the period from 3 to 24 April 2018. Samples were collected from the estuary of the Big Northern River and the marine area opposite the sports city. Samples then were transferred to laboratories of the Higher Institute of Marine Research, where semi of the water that was sampled from each site was enriched by iron and the other semi was kept as control samples. Samples were kept in laboratory conditions, and periodic samples were taken within 2-3 days with the aim of conducting measurements of nutrient concentrations and chlorophyll a. The experiment lasted 21 days. A small effect of iron enrichment was observed in both studied sites. Whereas the growth rates of phytoplankton biomass in control and enrichment flasks were close. The absence of response of the phytoplankton for the iron stress in the estuary of the Northern River can be explained by warmness this region in iron. But in the sports city area, this can be attributed to phosphate depletion. The application of this type of experiment to different areas of the Syrian coast considers an important point to determine the role of iron in influence on the primary productivity in our region.

Keywords:

Iron; Primary productivity; phytoplankton growth; Bottle incubation; Nutrient utilization; Syrian coast

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