scholarly journals THE DISTRIBUTION OF BENTHIC FORAMINIFERA IN DAMAR ISLAND AND JUKUNG ISLAND, SERIBU ISLANDS

2010 ◽  
Vol 35 (2) ◽  
pp. 9-14
Author(s):  
Suhartati M. Natsir

Seribu Islands are archipelago within Jakarta Bay built upon the pleistocene coral formation of the Sunda Shelf. The islands are characterized by unique and high biodiversity such as coral reefs. Since coral reef degradation would lead to a decrease of human prosperity, the determination of the coral reef quality is of high importance. Foraminifera offers an early warning system for the coral reef condition, as exemplified by the FORAM Index, i.e. Foraminifera in Reef Assessment and Monitoring Index. This study compared the foraminiferal community structure and the FORAM Index of two islands between the Damar Besar and Jukung. Both islands were dominated by symbiont-bearing foraminifera of the genera Amphistegina, Calcarina, Heterostegina, Marginophora, and Operculina. However, the number of benthic foraminifers at Jukung Island was higher than that at Damar Besar Island, having 17 individuals per species on average. Jukung Island was a conducive site to reef growth, as indicated by a FORAM Index (between 6,48 and 6,57), and Damar Besar Island was liable to environmental change.

2010 ◽  
Vol 35 (2) ◽  
pp. 9
Author(s):  
Suhartati M. Natsir

Seribu Islands are archipelago within Jakarta Bay built upon the pleistocene coral formation of the Sunda Shelf. The islands are characterized by unique and high biodiversity such as coral reefs. Since coral reef degradation would lead to a decrease of human prosperity, the determination of the coral reef quality is of high importance. Foraminifera offers an early warning system for the coral reef condition, as exemplified by the FORAM Index, i.e. Foraminifera in Reef Assessment and Monitoring Index. This study compared the foraminiferal community structure and the FORAM Index of two islands between the Damar Besar and Jukung. Both islands were dominated by symbiont-bearing foraminifera of the genera Amphistegina, Calcarina, Heterostegina, Marginophora, and Operculina. However, the number of benthic foraminifers at Jukung Island was higher than that at Damar Besar Island, having 17 individuals per species on average. Jukung Island was a conducive site to reef growth, as indicated by a FORAM Index (between 6,48 and 6,57), and Damar Besar Island was liable to environmental change.


F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 1962
Author(s):  
Singgih Afifa Putra ◽  
Indra Ambalika Syari ◽  
Helmy Akbar ◽  
Iwan Suyatna ◽  
Davin H. E. Setiamarga

Background: The aim of the study was to describe the coral reef condition in Bangka Belitung Islands, particularly from Gaspar Strait. This research location is well known for its underwater archaeological discovery and shipwreck sites. Recent increases in mining, fishing and tourism activities in the surrounding islands might have affected the condition of the coral reef. Methods: Nine islands inside the strait were visited (i.e. Langer, Kembung, Piling, Aur, Salma, Pongok, Celagen, Kelapan, and Lepar Island), and a line transect was used to observed coral reef conditions. Results: Coral cover was found to be predominantly in fair conditions (25-50%). Coral mortality index also tended to be high, which indicated that the coral reef ecosystem was in threatened conditions. Previous and recent reports also reported the same condition as found by this study. Conclusion: Degradation of the coral community in Bangka Belitung Islands is likely caused by human activities. This suggests that increasing human activities significantly affects the coral reef condition. Protection of coral reefs with sustainable management for mining activity, tourism and fishing practices are needed.


2016 ◽  
Vol 21 (1) ◽  
Author(s):  
Christopher H. R. Goatley ◽  
Roberta M. Bonaldo ◽  
Rebecca J. Fox ◽  
David R. Bellwood

Coral Reefs ◽  
2016 ◽  
Vol 35 (2) ◽  
pp. 451-455 ◽  
Author(s):  
Colin K. C. Wen ◽  
Mary C. Bonin ◽  
Hugo B. Harrison ◽  
David H. Williamson ◽  
Geoffrey P. Jones

2019 ◽  
Vol 5 ◽  
Author(s):  
Patricia Briones-Fourzán ◽  
Lorenzo Álvarez-Filip ◽  
Cecilia Barradas-Ortíz ◽  
Piedad S. Morillo-Velarde ◽  
Fernando Negrete-Soto ◽  
...  

2017 ◽  
Vol 55 (3) ◽  
pp. 1041-1049 ◽  
Author(s):  
Alice Rogers ◽  
Julia L. Blanchard ◽  
Peter J. Mumby

2013 ◽  
Vol 475 ◽  
pp. 303-307 ◽  
Author(s):  
D Lecchini ◽  
VP Waqalevu ◽  
E Parmentier ◽  
CA Radford ◽  
B Banaigs

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