scholarly journals Mid-lower bathyal benthic foraminifera of the Campos Basin, southeastern Brazilian margin: biotopes and controlling ecological factors

2006 ◽  
Vol 29 (1) ◽  
pp. 571-572
Author(s):  
Silvia Helena de Mello e Sousa ◽  
Raquel Fernanda Passos ◽  
Marina Fukumoto ◽  
Ilson Carlos Almeida da Silveira ◽  
Rubens Cesar Lopes Figueira ◽  
...  
Keyword(s):  
Benthic Foraminifera ◽  
Ecological Factors ◽  
Campos Basin

Mid-lower bathyal benthic foraminifera of the Campos Basin, Southeastern Brazilian margin: Biotopes and controlling ecological factors

2006 ◽  
Vol 61 (1-3) ◽  
pp. 40-57 ◽  
Author(s):  
Silvia Helena de Mello e Sousa ◽  
Raquel Fernanda Passos ◽  
Marina Fukumoto ◽  
Ilson Carlos Almeida da Silveira ◽  
Rubens Cesar Lopes Figueira ◽  
...  
Keyword(s):  
Benthic Foraminifera ◽  
Ecological Factors ◽  
Campos Basin

scholarly journals Benthic foraminifera as ecological indicators in the Tunda Island Waters, Serang District, Banten Province, Indonesia

2020 ◽  
Vol 21 (7) ◽  
Author(s):  
ISNI NURRUHWATI ◽  
FACHRI ARDIANSYAH ◽  
YUNIARTI ◽  
LINTANG PERMATA SARI YULIADI ◽  
Ruhyat Partasasmita
Keyword(s):  
Water Quality ◽  
Coral Reefs ◽  
Benthic Foraminifera ◽  
Human Activities ◽  
Ecological Factors ◽  
Ecological Indicators ◽  
Coastal Development ◽  
Mangrove Forests ◽  
Benthic Foraminifers ◽  
A Site

Abstract. Nurruhwati I, Ardiansyah F, Yuniarti, Yuliadi LPS, Partasasmita R. 2020. Benthic foraminifera as ecological indicators in the Tunda Island Waters Serang District, Banten Province, Indonesia. Biodiversitas 21: 3142-3148. Coral reef communities all across Southeast Asia are experiencing intense pressures from extensive tourism and massive coastal development. A prediction regarding coral reefs’ capacity to recover is a necessity since it is constantly exposed to damaging events such as mass bleaching and increased erosion. Tunda Island (which is highly rich in biodiversity and include coral reefs, mangrove forests, seagrass, and algae meadows) was sampled at 10 different sites in August 2019. Coral reefs are highly influenced by ecological factors such as temperature variability, salinity, DO, and pH. The assessments were conducted using the FORAM Index (FI) to accurately predict the capacity of coral reefs to recover based on relative abundances of symbiont-bearing larger benthic foraminifera in reef sediments. The FI values ranged from 3.7 to 7.9 with a median of 4.7 and the average of 5 indicates that the water quality should support the recovery of reefs by reef-building corals and symbiont-bearing larger benthic foraminifers. The lowest FI value sampled was recorded from a site with extensive human activities (FI=3.4), while the highest one was recorded from a site with minimal to none human activities (FI=7.9), which indicates that the deterioration of water quality is caused by wastes from tourism activities near the coastal area.

Biofaciological zonation of benthic foraminifera of the continental shelf of Campos Basin, SE Brazil

2015 ◽  
Vol 377 ◽  
pp. 18-27 ◽  
Author(s):  
Fabiana Silva Vieira ◽  
Eduardo Apostolos Machado Koutsoukos ◽  
Altair Jesus Machado ◽  
Mário André Trindade Dantas
Keyword(s):  
Continental Shelf ◽  
Benthic Foraminifera ◽  
Campos Basin ◽  
Se Brazil

scholarly journals BENTHIC FORAMINIFERAL ASSEMBLAGES IN NATUNA ISLANDS

2011 ◽  
Vol 3 (2) ◽  
Author(s):  
Suhartati M. Natsir ◽  
M. Subkhan ◽  
Rubiman Rubiman ◽  
Singgih P.A. Wibowo
Keyword(s):  
Coral Reefs ◽  
Benthic Foraminifera ◽  
Ecological Factors ◽  
Marine Organisms ◽  
Small Islands ◽  
A Site ◽  
Marine Community

<p>Natuna Islands cluster consisting of large and small islands which a very diverse ecosystems are occurred, including mangrove, seagrass and coral reefs. These waters can be a conducive habitat for various marine organisms, including foraminifera that can live in all types of waters. Collected foraminifera from a site reflect the relationships between species that are affected by ecological factors and the ability of these organisms adapt to their environment. These organisms are also used in the petroleum and mining line, and studied in the micropaleontology and palaeoecology. Therefore, the data on foraminifera in a marine community, including the waters of Natuna Islands are very important to support the fields. Sampling of this study was conducted in April 2011 in the waters off the coast until the ocean waters covering Bunguran, Subi Besar and Laut Islands. The benthic foraminifera that was collected as abundant in these three waters is symbiont bearing foraminifera, namely Amphistegina lessonii.</p><p>Keywords: Assemblage, foraminifera, benthic and Natuna</p>

Environmental controls on the distribution of living (stained) benthic foraminifera on the continental slope in the Campos Basin area (SW Atlantic)

2018 ◽  
Vol 181 ◽  
pp. 37-52 ◽  
Author(s):  
Cintia Yamashita ◽  
Silvia Helena de Mello e Sousa ◽  
Thaisa Marques Vicente ◽  
Maria Virgínia Martins ◽  
Renata Hanae Nagai ◽  
...  
Keyword(s):  
Continental Slope ◽  
Benthic Foraminifera ◽  
Environmental Controls ◽  
Campos Basin ◽  
Sw Atlantic ◽  
Basin Area

scholarly journals BENTHIC FORAMINIFERAL ASSEMBLAGES IN NATUNA ISLANDS

2011 ◽  
Vol 3 (2) ◽  
Author(s):  
Suhartati M. Natsir ◽  
M. Subkhan ◽  
Rubiman Rubiman ◽  
Singgih P.A. Wibowo
Keyword(s):  
Coral Reefs ◽  
Benthic Foraminifera ◽  
Ecological Factors ◽  
Marine Organisms ◽  
Small Islands ◽  
A Site ◽  
Marine Community

Natuna Islands cluster consisting of large and small islands which a very diverse ecosystems are occurred, including mangrove, seagrass and coral reefs. These waters can be a conducive habitat for various marine organisms, including foraminifera that can live in all types of waters. Collected foraminifera from a site reflect the relationships between species that are affected by ecological factors and the ability of these organisms adapt to their environment. These organisms are also used in the petroleum and mining line, and studied in the micropaleontology and palaeoecology. Therefore, the data on foraminifera in a marine community, including the waters of Natuna Islands are very important to support the fields. Sampling of this study was conducted in April 2011 in the waters off the coast until the ocean waters covering Bunguran, Subi Besar and Laut Islands. The benthic foraminifera that was collected as abundant in these three waters is symbiont bearing foraminifera, namely Amphistegina lessonii.Keywords: Assemblage, foraminifera, benthic and Natuna

Benthic foraminiferal zonation in deep-water carbonate platform margin environments, northern Little Bahama Bank

1988 ◽  
Vol 62 (01) ◽  
pp. 1-8 ◽  
Author(s):  
Ronald E. Martin
Keyword(s):  
Deep Water ◽  
Benthic Foraminifera ◽  
Carbonate Platform ◽  
Sedimentary Facies ◽  
Depositional Environments ◽  
Near Surface ◽  
Sediment Gravity Flows ◽  
Gravity Flows ◽  
Platform Margin ◽  
Water Carbonate

The utility of benthic foraminifera in bathymetric interpretation of clastic depositional environments is well established. In contrast, bathymetric distribution of benthic foraminifera in deep-water carbonate environments has been largely neglected. Approximately 260 species and morphotypes of benthic foraminifera were identified from 12 piston core tops and grab samples collected along two traverses 25 km apart across the northern windward margin of Little Bahama Bank at depths of 275-1,135 m. Certain species and operational taxonomic groups of benthic foraminifera correspond to major near-surface sedimentary facies of the windward margin of Little Bahama Bank and serve as reliable depth indicators. Globocassidulina subglobosa, Cibicides rugosus, and Cibicides wuellerstorfi are all reliable depth indicators, being most abundant at depths &gt;1,000 m, and are found in lower slope periplatform aprons, which are primarily comprised of sediment gravity flows. Reef-dwelling peneroplids and soritids (suborder Miliolina) and rotaliines (suborder Rotaliina) are most abundant at depths &lt;300 m, reflecting downslope bottom transport in proximity to bank-margin reefs. Small miliolines, rosalinids, and discorbids are abundant in periplatform ooze at depths &lt;300 m and are winnowed from the carbonate platform. Increased variation in assemblage diversity below 900 m reflects mixing of shallow- and deep-water species by sediment gravity flows.

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