Background: Mangroves are highly susceptible to oil exposure. Depending on the severity, oil exposure can result in initial defoliation and eventual recovery through to mass mortality and complete loss of habitat. In general, fishing activities are considered as one of the most important environmental
disturbances in increasing the vulnerability of the mangrove ecosystems due to their destructive effects on the process of sedimentation and wave currents, decreasing biodiversity, and introducing oil pollutants into these ecosystems.
Aim: The aim of this study was to investigate threats of fishing activity and oil incidents on Iranian Mangroves.
Methodology: In this study mapping of mangrove forests was carried out from 1990 to 1991 by utilizing by Landsat satellite imagery using the Maximum Likelihood Classification and NDVI index method.To determine the map of intensity of fishing activities was prepared in Nayband and Govatr habitats through mapping the mangrove habitats, drawing 189 and 391 cell networks of 4 × 4 km in the coastal waters and the available geospatial data, and number of vessels in the fishing ports of the Boushehr and Hormozgan province.
Results :The results showed an increase in Central Jask, Eastern Jask and Goater areas during 1990 to 1991. This increase amount was estimated on average to be in Central Jask from 55.17 to 55.62, in Eastern Jask from 274.41 to 274.5, and finally in Goater from 215.91 to 242.91. But in Qeshm, it has decreased from 5264.46 to 5264.01. Also, the area of Bidkhon, Basatin, Bandar Abbas, Sirik and Gabrik has not changed. Also the results of this study showed that based on the current condition of the studied mangrove habitats, the geographical distribution of the ports and the number of fishing vessels in them, the mangroves of the Goatar habitat are exposed to a higher intensity of fishing activity than the Nayband habitat. The average value of the intensity index of fishing activity in coastal waters adjacent to Naiba