Ecological models and GIS maps of macroalgae, as bioindicator for ecological status of Hormozgan rocky shores

Abstract

In this study a total of 75 species were identified, from which 17 species, 9 genes and 6 families; belonged to Green Algae, 18 species, 7 genes and 4 families; belonged to Brown Algae, and 40 species, 18 genes and 11 families; belonged to Red Algae. From total times spent for sampling, it was determined that at lengeh harbor with 6 species, had the lowest diversity of green algae. The species diversity of brown algae at Michaellocation with 10 species each; had the highest, and Tahooneh location with 5 species; had the lowest species diversity. Species diversity of red algae at Michael location with 28 species; had the highest, and Sayeh Khosh location with 13 species; had the lowest diversity.From all locations where sampling took place, the highest species diversity regarding Timeand Space for all three groups of algae; were associated to Late February (20th. Feb. ), andlate March(20th. March). Coverage data of macroalgae and Ecological Evaluation Indexindicate a high level of eutrophication for the Saieh khosh, and Bostaneh, They are classifiedas zones with a bad and poor ecological status. It has been proved that concentrations ofbiogenic elements and phytoplankton blooming are higher in these zones. The best values ofthe estimated metrics at Tahooneh and Michaeil could be explained with the good ecologicalconditions in that zone and the absence of pollution sources close to that transect . The valuesof abundance of macroalgae and Ecological Evaluation Index indicate a moderate ecologicalconditions for the Koohin, Lengeh and Chirooieh.