Author(s): A.N. Khalil and A.M. Ibrahim
Article publication date: 1988-08-01
Vol. 6 No. 2 (yearly), pp. 189-204.
146
Keywords
phytoplankton, diatoms, Saudi Arabia
Abstract
A total of 124 species of the phytoplankton belonging to 37 genera were recorded in Obhur Creek region, north Jeddah during 1982. Diatoms were the most numerous. Nine species of diatoms and four species of dinoflagellate were new records for the area. AS temperature rose during Spring and Summer, it was observed that the number of the dinoflagellate species increased noticeably, while the number of diatoms species decreased. Furthermore, a decline in the standing crop of the phytoplankton was noticed. Autumn represents the more favourable season for phytoplankton growth.
An obvious increase in the number of the phytoplankton species around the year was noted seaward off Obhur Creek.