WSEAS Transactions on Biology and Biomedicine
Print ISSN: 1109-9518, E-ISSN: 2224-2902
Volume 15, 2018
Referential Seasonality of Critical Loads of Sulfur on Rhizophora harrisonii in the Port of Guayaquil
Authors: , , , , , ,
Abstract: The research focuses on demonstration of the life quality of mangroves with the respect to the critical loads of atmospheric sulfur during the dry and rainy seasons of 2017, the investigation was conducted on two islands of the interior estuary in Gulf of Guayaquil: "Trinitaria" with a high incidence of pollutant activity and "Chupador Chico" island, which is part of the Wetland of International Importance. The analysis of the data included the use of a simple one-way Anova and the Kruskal-Wallis tests for the contrast of the hypotheses, with a p-value of 0.05. The proteins and chlorophylls were determined with the Bradfor and 80% acetone methods, as well as the salts of Mg2 +, Mn2+, K+, Ca2 + and SO42- in the leaves, it was measured by APHA method 4500 and passive samplers for the determination of critical loads of sulfur. During the dry and rainy seasons it was observed significant differences in proteins 9.85 - 3.546 ug ml-1 and carotenoids 31.25 - 0.96 ug ml-1 respectively, which differs between islands. The sulfates present in the leaves varied from 3,540 to 2,125 ppm for the dry and rainy season. The sulfur fluxs were of 3.35 kg S ha-1 year -1 there were no significant differences between study sites or times of sulfur fluxs, which responds to a regional distribution. The significant differences of the photosynthetic pigments, proteins and salts between study sites and seasons responds to the different anthropics tensors that Rhizophora harrisonii supports in the study area.
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Pages: 24-34
WSEAS Transactions on Biology and Biomedicine, ISSN / E-ISSN: 1109-9518 / 2224-2902, Volume 15, 2018, Art. #4