DIVERSITY AND DISTRIBUTION OF LIVING LARGER BENTHIC FORAMINIFERA FROM CORAL REEF ENVIRONMENTS, SOUTH ANDAMAN ISLAND, INDIA

2017 ◽  
Vol 47 (3) ◽  
pp. 252-257 ◽  
Author(s):  
M. Muruganantham ◽  
P. Ragavan ◽  
P.M. Mohan
Keyword(s):  
Coral Reef ◽  
Benthic Foraminifera ◽  
Andaman Island ◽  
Larger Benthic Foraminifera ◽  
Reef Environments ◽  
South Andaman

scholarly journals BENTHIC FORAMINIFERA IN SOUTH WAIGEO WATERS, RAJA AMPAT, WEST PAPUA

2016 ◽  
Vol 27 (1) ◽  
pp. 1 ◽  
Author(s):  
Suhartini M. Natsir ◽  
M. Subkhan
Keyword(s):  
Coral Reef ◽  
Benthic Foraminifera ◽  
Petroleum Industry ◽  
Reef Growth ◽  
Reef Environment ◽  
West Papua ◽  
Reef Environments ◽  
Coral Reef Environment ◽  
Stress Environment ◽  
Papua Barat

Waigeo Island is one of four large islands of the Raja Ampat group, West Papua Province. This area lies in the heart of the coral triangle region as the most marine bio-diversity on Earth. Coral reef ecosystem of the Waigeo is a favorable habitat for various organisms including foraminifera. Foraminifera have been proven as useful indicator of water quality surrounding the coral reef environment since FORAM Index was formulated. It gives additional importance of foraminifera beside their common uses on micropalaeontology for petroleum industry and palaeoecology. Therefore, it is very important to obtain data of the benthic foraminifera from various coral reef environments in Indonesia, such as around Waigeo Island. Sediment samples of this study were collected from 12 sites in southern part off Waigeo Island, on July 2011. Observation on benthic foraminifera shows that the study area is dominated by symbiotic bearing benthic foraminifera, Amphistegina lessonii, belongs to Suborder Rotaliina. This occurrence increases the values of FORAM Index (FI) at certain sites. Generally, the values of FI from most sites are high (FI>4) that provide a good indication for reef growth or recovery. The values of FI less than 2 are found at RJ3 and RJ4 indicate stress environment for reef growth and they are dominated by opportunistic and heterotrophic functional groups of Elphidium and Quinqueloculina. Keywords: benthic foraminifera, high value FI, Waigeo Island, West Papua Pulau Waegio merupakan salah satu dari empat pulau besar di Kepulauan Raja Ampat, Provinsi Papua Barat. Wilayah in terletak di jantung segitiga terumbu karang sebagai pusat paling kaya keanekaragaman hayatinya di bumi. Ekosistem terumbu karang Waigeo merupakan habitat yang cocok bagi kehidupan berbagai organisme termasuk foraminifera. Foraminifera telah terbukti sebagai indikator kualitas air sekitar terumbu karang setelah diformulasikan Indeks FORAM. Dengan demikian foraminifera telah mempunyai kegunaan tambahan selain fungsi umum dalam bidang mikropaleontologi pada industri perminyakan dan paleoekologi. Oleh karena itu sangat penting untuk mendapatkan data foraminifera bentik dari ekosistem terumbu karang di wilayah Indonesia, seperti perairan Pulau Waigeo. Sampel sedimen untuk studi ini diambil di 12 titik lokasi sebelah selatan Pulau Waigeo pada bulan Juli 2011. Hasil pengamatan memperlihatkan bahwa daerah penelitian di dominasi foraminifera bentik yang bersimbose dengan terumbu karang, Amphistegina lessonii, anggota Subordo Rotaliina. Kehadirannya meningkatkan nilai FI dari titik lokasi tertentu. Sebagian besar titik lokasi mempunyai nilai FI>4 memberi indikasi bahwa kondisi perairannya kondusif untuk pertumbuhan karang yang terletak di ekosistem terumbu karang. Secara umum, nilai FI di sebagian besar titik lokasi tinggi (>4) yang member indikasi kondisi lingkungan bagus bagi pertumbuhan karang. Nilai FI rendah (

A preliminary investigation of Eocene larger benthic foraminifera assemblages from Alpine and molasse-type deposits of the Hellenic peninsula (Greece)

2021 ◽  
Vol 70 ◽  
pp. 100468
Author(s):  
Vasiliki-Grigoria Dimou ◽  
Olga Koukousioura ◽  
Margarita D. Dimiza ◽  
Maria V. Triantaphyllou ◽  
György Less ◽  
...  
Keyword(s):  
Benthic Foraminifera ◽  
Preliminary Investigation ◽  
Larger Benthic Foraminifera

An Integrated Study for the Assessment of Tsunami Impacts: A Case Study of South Andaman Island, India Using Remote Sensing and GIS

2007 ◽  
Vol 49 (3) ◽  
pp. 229-266 ◽  
Author(s):  
K. Dharanirajan ◽  
P. Kasinatha Pandian ◽  
B. Gurugnanam ◽  
RM. Narayanan ◽  
S. Ramachandran
Keyword(s):  
Remote Sensing ◽  
Remote Sensing And Gis ◽  
Andaman Island ◽  
South Andaman ◽  
Integrated Study

scholarly journals Quaternary benthic Foraminifera in the Tu Chinh - Vung May marine areas (continental shelf of Vietnam) and island, coral reef regions of the Truong Sa archipelago, Vietnam and their significance

2019 ◽  
Vol 19 (3B) ◽  
pp. 137-147
Author(s):  
Nguyen Ngoc ◽  
Bui Thi Luan ◽  
Nguyen Thi Hong Nhung
Keyword(s):  
Coral Reef ◽  
Continental Shelf ◽  
Benthic Foraminifera ◽  
Common Species ◽  
Subtropical Climate ◽  
Stratigraphic Division ◽  
Reef Islands ◽  
Sea Level Fluctuation ◽  
Marine Areas ◽  
Sediment Age

The results of identifying and studying micropaleontological samples from the Quaternary sediments in the Tu Chinh - Vung May marine areas (1) and some coral reef islands of Truong Sa archipelago (2) have found more than 300 species of Benthic foraminifera, in which 291 species have been studied and described in detail, belonging to 112 genera, 43 families, 5 orders and 3 classes of the phylum Foraminifera. Among them, there are 19 new species, 3 new subspecies and 3 new genera. In the first region there are 195 species and the second one - 121 species (including 25 common species for both regions). They have important significations in the stratigraphic-biostratigraphic, ecological, paleogeographic studies, in sedimentary lithology... Regarding stratigraphy, the characteristic of Pleistocene is the first emergence of four genera: Baculogypsina, Cymbaloporetta, Parasorites, and Schlumbergerella; for Holocene - the appearance of the following genera: Ammomassilina, Baulogypsinoides, Cymbaloporella, Falsotextularia, Fijiella, Flintina, Gyroidina, Lugdunum, Neoconorbina, Planoperculina, Ptychomiliolata, Pseudoflintina, Pseudomassilina, Sahulia, Schlumbergerina, Septotextularia, Siphoniferoides, Tawitawia and Truongsaia. These fossils are the basis for dating sediment age, Quaternary stratigraphic division and correlation. In terms of paleoecology, benthic Foraminifera in the region (1) characterize the shallow offshore environment of the continental shelf, where there are the high and stable salinity, and the relatively strong environmental dynamics; in some places there are coral reef Foraminifera populations. In the region (2), they characterize the coral reef ecosystem of shallow and warm sea areas in the belt of tropical-subtropical climate of the Earth, where the salinity is high and stable, the transparency of water is high, and the environmental dynamics is relatively strong to strong... In addition, the paper also mentioned some other issues such as paleogeography (sea-level fluctuation), value of creating sediments of Foraminifera, environmental monitoring (for modern Foraminifera).

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