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Title: Distribution of Recent Benthic Foraminifera Around the Coral Reefs of Qaruh Island, Southern Kuwait:
Authors: منتهى العمار 
Supervisor: Prof. Mohamad Al-Sarawi
Keywords: Coral Reefs, Qaruh Island, Southern Kuwait
Issue Date: 2011
Publisher:  Kuwait university - college of graduate studies
Abstract: The present study aimed to update knowledge on the geographical distribution of recent benthic foraminiferal fauna around coral reefs of Qaruh Island, Southern Kuwait, and aimed to determine the main factors affecting the biodiversity of these fauna in the studied area. The study has been carried out in two seasons, winter (February 2010) and summer (June 2010). In this manner, foraminiferal fauna have been taxonomically identified, quantitatively analyzed, documented and photographed. Their relative abundance have been determined and illustrated in a geographic map in area surrounding the Island. The study has concluded in identifying 60 benthic foraminiferal species picked from 39 sediment samples collected from stations starting from the coastline to 20m depths along four traverses (North, South, East and West) around the Island. Depending on the quantitative analysis and the total frequency of these species, 3 suborders have been recognized using Yule-Simpson diversity index. The analytical statistics of these suborders consists of 1.49% of Textulariina, 74% of Miliolina and 24% of Rotaliina. In the study area, some species are dominant and their relative abundance is greater than 4%. These species are: Quinqueloculina akneriana; Siphonaperta dilatata; Eponides cribrorepandus; Rosalina densitiva; and Adelosina crassicarinata. The study shows that the distribution of foraminiferal fauna is mainly related to depth. The highest diversity index was observed among the species at depths exceeding 20m. Shallow depths (< 5m) showed a low frequency distribution and low diversity of foraminifera species and contain mostly dead or deformed species. On the other hand, the study shows other relationships between the species and their sediment texture. Areas with medium to fine sand sediments have high frequency abundance, while areas with very coarse to coarse sand sediments have low frequency abundance. Furthermore, the study concluds that the existence of these fauna around areas of food sources, such as the coral reefs in this study, contributes to their diversity in some shallow depths (2-5m). Reefs are very stable and provide shlter and stable substrate to sustain these fauna. As a conclusion, two main factors that affect the distribution of foraminiferal fauna in this study were found to be water depth and sediment texture.
Appears in Programs:0460 Geology

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