نوع مقاله : مقاله پژوهشی
نویسندگان
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Chlorophyll-a indicates the biomass of phytoplankton as the primary production. Chlorophyll-a changes indicate the situation of the ecosystem. The present study was conducted for monitoring it in the northern part of the Persian Gulf and Oman Gulf. For this purpose, CTD and NASA site information was used. Samplings were done from January-March 2018-2021. Mean southern waters chlorophyll-a in 2018 was (0.97±0.84 mg/m3) mean southern water’s surface chlorophyll-a was (1.98±1.48 mg/m3) in 2019. The mean su rface chlorophyll-a of Oman Gulf in 2020 was (0.92±0.334 mg/m3). The mean of chlorophyll-a in the Persian Gulf in 2021 was (0.23±0.13mg/m3). The data result of NMDS showed significant differences between the two groups: (Bushehr, Hormozgan, Sistan & Blochestan, 2019) in comparison (Bushehr and Khuzestan, 2021). Mean surface chlorophyll-a in the first and second groups were (1.09±1.5 mg/m3) and (0.13±0.16 mg/m3), respectively. This significant difference and the greater biomass amount of the first group were due to floods and discharge of nutrients in March-April of 2019, and Nutrients will provide suitable conditions for phytoplankton’s growth.
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