Benthic foraminifera as proxies of marine influence in the Orosei marine caves, Sardinia, Italy

2020 ◽  
Vol 30 (4) ◽  
pp. 701-716 ◽  
Author(s):  
Elena Romano ◽  
Luisa Bergamin ◽  
Letizia Di Bella ◽  
Virgilio Frezza ◽  
Andrea Marassich ◽  
...  
Keyword(s):  
Benthic Foraminifera ◽  
Marine Caves ◽  
Marine Influence

scholarly journals Benthic Foraminifera as an Environmental Indicators in Mediterranean Marine Caves: A Review

Geosciences ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 42
Author(s):  
Elena Romano ◽  
Luisa Bergamin ◽  
Mario Parise
Keyword(s):  
Environmental Conditions ◽  
Benthic Foraminifera ◽  
Environmental Variability ◽  
Environmental Indicators ◽  
Environmental Drivers ◽  
Sediment Type ◽  
Marine Systems ◽  
Marine Caves ◽  
Different Characteristics

Marine caves are characterized by wide environmental variability for the interaction between marine and continental processes. Their conditions may be defined as extreme for inhabiting organisms due to the enclosed morphology, lack of light, and scarcity of nutrients. Therefore, it is necessary to identify reliable ecological indicators for describing and assessing environmental conditions in these habitats even more than elsewhere. This review aims to provide the state of art related to the application of benthic foraminifera as proxies in the (paleo)ecological characterization of different habitats of marine caves. Special attention was addressed to a research project focused on Mediterranean marine caves with different characteristics, such as extent, morphology, freshwater influence, salinity, sediment type, oxygenation, and organic matter supply. This review aims to illustrate the reliability of foraminifera as an ecological and paleoecological indicator in these habitats. They respond to various environmental conditions with different assemblages corresponding to a very detailed habitat partitioning. Because marine caves may be considered natural laboratories for environmental variability, the results of these studies may be interpreted in the perspective of the global variability to understand the environmental drivers of future changes in marine systems.

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 >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 <300 m, reflecting downslope bottom transport in proximity to bank-margin reefs. Small miliolines, rosalinids, and discorbids are abundant in periplatform ooze at depths <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.

THE ABUNDANCE OF RECENT FORAMINIFERA IN SURFACE SEDIMENT OF AMBON BAY

2010 ◽  
Vol 2 (1) ◽  
Author(s):  
Suhartati M. Natsir
Keyword(s):  
Surface Sediment ◽  
Benthic Foraminifera ◽  
Sea Water ◽  
Planktonic Foraminifera ◽  
Sediment Characteristic ◽  
Abundance And Distribution

Foraminifera are generally live in sea water with various sizes. These organisms consist of planktonic and benthic foraminifera. Geological activity on plutonic and volcanic with vomiting magma is transpiring on, and then affects sedimentation and foraminiferal abundance of Ambon Bay. The study was determined to study the abundance and distribution of foraminifera based on the sediment characteristic of Ambon Bay. Sample collected in 2007 of Ambon Bay showed that only 29 samples of 50 samples containing foraminifera. The collected sediments have 86 species of foraminifera, consisting 61 species of benthic foraminifera and 25 species of planktonic foraminifera. The dominant benthic foraminifera in the surface sediment of Ambon bay were Amphistegina lessonii, Ammoniabeccarii,Elphidium craticulatum,Operculina ammonoides and Quinqueloculina parkery. The planktonic foraminifera that were frequently collected from the bay were Globorotalia tumida, Globoquadrina pseudofoliata, Globigerinoides pseudofoliata, Globigerinoides cyclostomus dan Pulleniatina finalis. Generally, the species dwelled as abundant on substrate sand, whereas the areas within substrate mud have no foraminifera lie on them. Keywords: Foraminifera, Abundance, Sediment, Ambon Bay

RECENT BENTHIC FORAMINIFERA FROM CONTINENTAL SHELF ASSOCIATED TO THE GREAT AMAZON REEF SYSTEM (GARS)

2019 ◽  
Author(s):  
Marcela Costa POMPEU ◽  
Anna Andressa Evangelista NOGUEIRA ◽  
Juan Sebastian Gomez NEITA ◽  
Nils Advin ASP NETO
Keyword(s):  
Continental Shelf ◽  
Benthic Foraminifera ◽  
Reef System

Benthic foraminifera and ostracoda from Virginia continental shelf

1998 ◽  
Author(s):  
T. M. Cronin ◽  
S.E. Ishman ◽  
Robert Wagner ◽  
G.R. Cutter
Keyword(s):  
Continental Shelf ◽  
Benthic Foraminifera

VARIATIONS IN PALEOPRODUCTIVITY RECORDED BY BENTHIC. FORAMINIFERA DURING MIS 3 FROM THE WESTERN SOUTH CHINA SEA

2011 ◽  
Vol 31 (1) ◽  
pp. 85-92
Author(s):  
Yaocheng NIU ◽  
Yiyuan ZHANG ◽  
Jianghui DU ◽  
Mengsha CHEN ◽  
Baoqi HUANG
Keyword(s):  
South China Sea ◽  
South China ◽  
Benthic Foraminifera ◽  
China Sea ◽  
Mis 3 ◽  
Western South China Sea
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