بررسي سيستماتيك روزنه داران كفزي در رسوبات نواحي دور از ساحل فلات قاره درياي عمان

Study On The Diversity and distribution of benthic Foraminifera In The Offshore Sediments Of The Continental Shelf In The Oman Sea

Diversity of benthic Foraminifera in the offshore sediments of the continental shelf in the Oman Sea was studied. The main aim of the recent research was to discover the structure of benthic foraminiferal communities in the studied area (for the first time)and for further understanding of sedimental condition of the Oman Sea and its comparison with the coastal waters and other marine ecosystems. Sediment samples were gathered in the winter 2006 by a 0/lm2 Van Veen grab, from 12 stations ranging in depth from 30 to 103 meters. The composition of foraminiferal communities was different in northern and southern regions. From the overall 57 benthic foram species, 52 species belonging to 25 genera of 16 families were identified. The suborder ROTALIINA was dominant in the northern region, while LAGENINA, MILIOLINA and TEXTU L ARI IN A were abundant in the northwest region too. TEXTULARIINA were more abundant in the southern region in comparison with the northern. Ammonia beccarii was common in the whole studied region.