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Journal articles on the topic 'Foraminifera ecology'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Roy, T., F. Lombard, L. Bopp, and M. Gehlen. "Projected impacts of climate change and ocean acidification on the global biogeography of planktonic Foraminifera." Biogeosciences 12, no. 10 (2015): 2873–89. http://dx.doi.org/10.5194/bg-12-2873-2015.

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Abstract. Planktonic Foraminifera are a major contributor to the deep carbonate flux and their microfossil deposits form one of the richest databases for reconstructing paleoenvironments, particularly through changes in their taxonomic and shell composition. Using an empirically based planktonic foraminifer model that incorporates three known major physiological drivers of their biogeography – temperature, food and light – we investigate (i) the global redistribution of planktonic Foraminifera under anthropogenic climate change and (ii) the alteration of the carbonate chemistry of foraminifera

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2

Martinez, Ana, Laura Hernández-Terrones, Mario Rebolledo-Vieyra, and Adina Paytan. "Impact of carbonate saturation on large Caribbean benthic foraminifera assemblages." Biogeosciences 15, no. 22 (2018): 6819–32. http://dx.doi.org/10.5194/bg-15-6819-2018.

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Abstract. Increasing atmospheric carbon dioxide and its dissolution in seawater have reduced ocean pH and carbonate ion concentrations, with potential implications on calcifying organisms. To assess the response of large Caribbean benthic foraminifera to low carbonate saturation conditions, we analyzed benthic foraminifers' abundance and relative distribution in surface sediments in proximity to low-carbonate-saturation submarine springs and at adjacent control sites. Our results show that the total abundance of large benthic foraminifera was significantly lower at the low-pH submarine springs

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3

Keul, N., G. Langer, L. J. de Nooijer, and J. Bijma. "Effect of ocean acidification on the benthic foraminifera <i>Ammonia</i> sp. is caused by a decrease in carbonate ion concentration." Biogeosciences 10, no. 10 (2013): 6185–98. http://dx.doi.org/10.5194/bg-10-6185-2013.

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Abstract. About 30% of the anthropogenically released CO2 is taken up by the oceans; such uptake causes surface ocean pH to decrease and is commonly referred to as ocean acidification (OA). Foraminifera are one of the most abundant groups of marine calcifiers, estimated to precipitate ca. 50 % of biogenic calcium carbonate in the open oceans. We have compiled the state of the art literature on OA effects on foraminifera, because the majority of OA research on this group was published within the last three years. Disparate responses of this important group of marine calcifiers to OA were report

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4

Ying, Rui, Fanny M. Monteiro, Jamie D. Wilson, and Daniela N. Schmidt. "ForamEcoGEnIE 2.0: incorporating symbiosis and spine traits into a trait-based global planktic foraminiferal model." Geoscientific Model Development 16, no. 3 (2023): 813–32. http://dx.doi.org/10.5194/gmd-16-813-2023.

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Abstract. Planktic foraminifera are major marine calcifiers in the modern ocean, regulating the marine inorganic carbon pump, and generating marine fossil archives of past climate change. The foraminifera contain ecogroups with and without spines and algal symbionts, creating functional trait diversity which expands their ecological niches. Here, we incorporate symbiosis and spine traits into the symbiont-barren non-spinose foraminifer functional type in EcoGEnIE to represent all the extant foraminifera species. We calibrated the modelled new traits using Latin hypercube sampling (LHS) and ide

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Burkett, Ashley, Jake Willingham, Anthony E. Rathburn, Sabine Schmidt, and Patrick De Deckker. "The ecology of live bathyal benthic foraminifera on the southern and southeastern Australian Margin." Micropaleontology 71, no. 4 (2025): 307–34. https://doi.org/10.47894/mpal.71.4.01.

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Living (Rose Bengal stained) benthic foraminifera were examined in multicore samples collected at depths ranging from 580 to 1,270 m from the Tasman Sea and southern margin of Australia. This study presents an initial overview of the deep-sea foraminifera living on these margins. Based on widely separated cores, there appears to be no correlation between foraminiferal abundance and species with ocean depth, seafloor grain size, oxygen availability, temperature, or particulate organic carbon. Although more work is needed, this study suggests environmental factors affect foraminiferal population

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Norris, Richard D. "Symbiosis as an evolutionary innovation in the radiation of Paleocene planktic foraminifera." Paleobiology 22, no. 4 (1996): 461–80. http://dx.doi.org/10.1017/s0094837300016468.

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Symbioses are often regarded as an important means for the creation of evolutionary novelty as well as a trigger for the abrupt appearance of higher taxa. The fossil record of foraminifer-algal symbiosis suggests that the appearance of this ecological association contributed to the radiation of Paleogene planktic foraminifera. Isotopic evidence shows that photosymbiosis evolved in synchrony with a major diversification of trochospiral planktic foraminifera about 3.5 m.y. after the end-Cretaceous extinction. In modern planktic foraminifera, photosymbiotic species tend to have more cosmopolitan

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7

Keul, N., G. Langer, L. J. de Nooijer, and J. Bijma. "Effect of ocean acidification on the benthic foraminifera <i>Ammonia</i> sp. is caused by a decrease in carbonate ion concentration." Biogeosciences Discussions 10, no. 1 (2013): 1147–76. http://dx.doi.org/10.5194/bgd-10-1147-2013.

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Abstract. About 30% of the anthropogenically released CO2 is taken up by the oceans, which causes surface ocean pH to decrease and is commonly referred to as Ocean Acidification (OA). Foraminifera are one of the most abundant groups of marine calcifiers, estimated to precipitate ca. 50% of biogenic calcium carbonate in the open oceans. We have compiled the state of the art of OA effects on foraminifera, because the majority of OA research on this group was published within the last 3 yr. Disparate responses of this important group of marine calcifiers to OA were reported, highlighting the impo

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8

Roy, T., F. Lombard, L. Bopp, and M. Gehlen. "Projected impacts of climate change and ocean acidification on the global biogeography of planktonic foraminifera." Biogeosciences Discussions 11, no. 6 (2014): 10083–121. http://dx.doi.org/10.5194/bgd-11-10083-2014.

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Abstract. Planktonic foraminifera are a major contributor to the deep carbonate-flux and the planktonic biomass of the global ocean. Their microfossil deposits form one of the richest databases for reconstructing paleoenvironments, particularly through changes in their taxonomic and shell composition. Using an empirically-based foraminifer model that incorporates three known major physiological drivers of foraminifer biogeography – temperature, food and light – we investigate (i) the global redistribution of planktonic foraminifera under anthropogenic climate change, and (ii) the alteration of

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9

Ando, Atsushi, Brian T. Huber, and Kenneth G. MacLeod. "Depth-habitat reorganization of planktonic foraminifera across the Albian/Cenomanian boundary." Paleobiology 36, no. 3 (2010): 357–73. http://dx.doi.org/10.1666/09027.1.

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New mid-Cretaceous stable isotope (δ18O and δ13C) records of multiple planktonic foraminiferal species and coexisting coccoliths from Blake Nose (western North Atlantic) document a major depth-ecology reorganization of planktonic foraminifera. Across the Albian/Cenomanian boundary, deep-dwellingPraeglobotruncana stephaniandRotalipora globotruncanoidesadapted to living at a shallower depth, while, at the same time, the population of surface-dwellingParacostellagerina libycadeclined. Subsequently, the opportunistic speciesHedbergella delrioensisshifted to a deep environment, and the deep-dwellin

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10

Glock, Nicolaas. "Benthic foraminifera and gromiids from oxygen-depleted environments – survival strategies, biogeochemistry and trophic interactions." Biogeosciences 20, no. 16 (2023): 3423–47. http://dx.doi.org/10.5194/bg-20-3423-2023.

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Abstract. The oceans are losing oxygen (O2), and oxygen minimum zones are expanding due to climate warming (lower O2 solubility) and eutrophication related to agriculture. This trend is challenging for most marine taxa that are not well adapted to O2 depletion. For other taxa this trend might be advantageous because they can withstand low O2 concentrations or thrive under O2-depleted or even anoxic conditions. Benthic foraminifera are a group of protists that include taxa with adaptations to partly extreme environmental conditions. Several species possess adaptations to O2 depletion that are r

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Pacho, Laura, Lennart de Nooijer, and Gert-Jan Reichart. "Element ∕ Ca ratios in Nodosariida (Foraminifera) and their potential application for paleoenvironmental reconstructions." Biogeosciences 20, no. 19 (2023): 4043–56. http://dx.doi.org/10.5194/bg-20-4043-2023.

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Abstract. The chemical composition of foraminiferal shells is a well-known tool in paleoceanography to reconstruct past environments and climate. Their application is based on the relation between environmental variables and the concentration of elements incorporated or stable isotope fractionation during calcification. The vast majority of these so-called proxy relationships are based on the foraminiferal order of the Rotaliida, which, for example, encompasses all living planktonic species. However, there are more orders of foraminifera with calcifying members, some of which have fundamentall

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12

Michie, MG. "Distribution of foraminifera in a macrotidal tropical estuary: Port Darwin, Northern Territory of Australia." Marine and Freshwater Research 38, no. 2 (1987): 249. http://dx.doi.org/10.1071/mf9870249.

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The foraminifera are distributed throughout Port Darwin and differ according to biotope. The tidal flat and coral reef biotopes are basically undisturbed, and contain species of foraminifera typical of those environments. Turbidity is responsible for a lower diversity of the reefal facies, and particularly affects those species with symbiotic algae. The reworked biotope contains foraminifera more typical of the shallow continental shelf. Strong tidal currents associated with the large tidal range are responsible for the reworking of sediments and foraminifera1 tests from inside and outside Por

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Salmon, K. H., P. Anand, P. F. Sexton, and M. Conte. "Upper ocean mixing controls the seasonality of planktonic foraminifer fluxes and associated strength of the carbonate pump in the oligotrophic North Atlantic." Biogeosciences 12, no. 1 (2015): 223–35. http://dx.doi.org/10.5194/bg-12-223-2015.

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Abstract. Oligotrophic regions represent up to 75% of Earth's open-ocean environments. They are thus areas of major importance in understanding the plankton community dynamics and biogeochemical fluxes. Here we present fluxes of total planktonic foraminifera and 11 planktonic foraminifer species measured at the Oceanic Flux Program (OFP) time series site in the oligotrophic Sargasso Sea, subtropical western North Atlantic Ocean. Foraminifera flux was measured at 1500 m water depth, over two ~ 2.5-year intervals: 1998–2000 and 2007–2010. We find that foraminifera flux was closely correlated wit

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14

Collen, John. "<i>Recolonization of reef flat by larger foraminifera, Funafuti, Tuvalu</i>." Journal of Micropalaeontology 15, no. 2 (1996): 130. http://dx.doi.org/10.1144/jm.15.2.130.

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Abstract. The ecology of the larger foraminifera is poorly known for western Pacific atolls, despite the importance of these species to the sediment budgets of the atolls. Many beaches and islets (motu) are composed largely of foraminiferal tests derived from reef flat communities; however, populations of larger foraminifera are often under threat or may even have been eliminated by the effects of pollution and development of the reef flats. It is therefore important to understand the rates of response of foraminiferal populations to natural and human changes to their environments.This note re

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15

Burke, Janet E., Willem Renema, Michael J. Henehan, et al. "Factors influencing test porosity in planktonic foraminifera." Biogeosciences 15, no. 21 (2018): 6607–19. http://dx.doi.org/10.5194/bg-15-6607-2018.

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Abstract. The clustering of mitochondria near pores in the test walls of foraminifera suggests that these perforations play a critical role in metabolic gas exchange. As such, pore measurements could provide a novel means of tracking changes in metabolic rate in the fossil record. However, in planktonic foraminifera, variation in average pore area, density, and porosity (the total percentage of a test wall that is open pore space) have been variously attributed to environmental, biological, and taxonomic drivers, complicating such an interpretation. Here we examine the environmental, biologica

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16

Fehrenbacher, Jennifer S., Brittany N. Hupp, Oscar Branson, et al. "INDIVIDUAL FORAMINIFERAL ANALYSES: A REVIEW OF CURRENT AND EMERGING GEOCHEMICAL TECHNIQUES." Journal of Foraminiferal Research 54, no. 4 (2024): 312–31. http://dx.doi.org/10.61551/gsjfr.54.4.312.

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Abstract The trace element (TE) and isotopic composition of calcareous foraminifera has been invaluable in advancing our understanding of environmental change throughout the geological record. Whereas “bulk” geochemical techniques, typically requiring the dissolution of tens to hundreds of foraminiferal tests for a single analysis, have been used for decades to reconstruct past ocean-climate conditions, recent technological advances have increased our ability to investigate foraminiferal geochemistry from an individual test to a micron-scale domain level. Here we review current and emerging te

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17

Rohret, Shari M., and Joan M. Bernhard. "Inhabitation of bathyal hydrocarbon seeps by early-branching benthic foraminifera: Implications for Neo-Proterozoic ecosystem functioning." Journal of Foraminiferal Research 54, no. 3 (2024): 217–36. http://dx.doi.org/10.61551/gsjfr.54.3.217.

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Abstract Little is known about mechanisms allowing agglutinated and thecate (i.e., organic-walled) foraminifera associated with extreme environments to survive. Here, we present cytological observations of organic-walled and agglutinated monothalamid and milioline tubothalamids collected from sulfur-oxidizing microbial mats of Gulf of Mexico hydrocarbon seeps. This is the first ultrastructural analysis of allogromids, a basal group of organic-walled thecate foraminifera, from seeps. We show most allogromids contained numerous ingested bacteria of various forms; organelle abundance and distribu

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18

Bellais, Kaylyn C., Samuel T. Barber, Donald A. Beebe, and Murlene W. Clark. "Lake or Estuary? Sedimentary and Benthic Foraminiferal Characterization of a Gulf of Mexico Coastal Dune Lake." Gulf and Caribbean Research 31 (2020): SC46—SC52. http://dx.doi.org/10.18785/gcr.3101.18.

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Coastal dune lakes are shallow estuaries located within dune environments that share a permanent or intermittent connection with the sea. Because coastal dune lakes are found in few locations worldwide (e.g. Australia, New Zealand, Florida, etc.) they represent unique environments worthy of protection. However; there is a distinct lack of scientific data related to the function and ecology of coastal dune lakes, especially in the Gulf of Mexico. Therefore, the purpose of this study was to characterize the sedimentology and foraminifera of a representative coastal dune lake in Walton County, FL

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Tapia, Raúl, Sze Ling Ho, Hui-Yu Wang, Jeroen Groeneveld, and Mahyar Mohtadi. "Contrasting vertical distributions of recent planktic foraminifera off Indonesia during the southeast monsoon: implications for paleoceanographic reconstructions." Biogeosciences 19, no. 13 (2022): 3185–208. http://dx.doi.org/10.5194/bg-19-3185-2022.

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Abstract. Planktic foraminifera are widely used in paleoceanographic and paleoclimatic studies. The accuracy of such reconstructions depends on our understanding of the organisms' ecology. Here we report on field observations of planktic foraminiferal abundances (>150 µm) from five depth intervals between 0–500 m water depth at 37 sites in the eastern tropical Indian Ocean. The total planktic foraminiferal assemblage here comprises 29 morphospecies, with 11 morphospecies accounting for 90 % of the total assemblage. Both species composition and dominance in the net samples are broadly consis

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20

Mikhalevich, Valeria, Eleonora Bugrova, Valeriy Basov, Elena Zakrevskaya, Tatiana Dmitrieva, and Maks Barash. "The Russian School of Foraminiferology." Journal of Foraminiferal Research 50, no. 1 (2020): 97–107. http://dx.doi.org/10.2113/gsjfr.50.1.97.

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Abstract Russian foraminiferal research began in the late 19th century and has continued to the present. Micropaleontology was prominent at two main branches of Soviet research institutions, that in St. Petersburg, known as the Petersburgian (Leningrad) and in Moscow as the Russian foraminiferal school. These two collaborated in well-coordinated cooperative work all around the country. This combined school of foraminiferology included many accomplished scientists whose main achievements are summarized, including highlights of the leadership and the contributions of A. V. Fursenko, G. A. Dutkev

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Rakhil, Dev, Neelakandan Ravindran Nisha, Nallusamy Babu, Mayappan Sundararajan, Subbiah Krishnakumar, and Kunjumon Akash. "Foraminiferal Distribution Pattern and its Ecological Implications in the Koswari and Van Islands of the Tuticorin Group of Islands." Indian Journal of Science and Technology 15, no. 32 (2022): 1569–76. https://doi.org/10.17485/IJST/v15i32.609.

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Abstract <strong>Objectives:</strong> The present investigation attempts to map the foraminiferal distribution pattern, its ecological significance, and the elemental composition of the Koswari and Van islands. <strong>Methods:</strong> Foraminiferal distribution patterns (both planktic and benthic) were recorded, and textural and geochemical analyses were carried out in the present study.<strong> Findings:</strong> The coastal environments are generally highly dynamic regions of the earth that possess imprints of global climatic variations. The islands of the Gulf of

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22

Zajączkowski, Marek, Witold Szczuciński, Birgit Plessen, and Patrycja Jernas. "Benthic foraminifera in Hornsund, Svalbard: Implications for paleoenvironmental reconstructions." Polish Polar Research 31, no. 4 (2010): 349–75. http://dx.doi.org/10.2478/v10183-010-0010-4.

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Benthic foraminifera in Hornsund, Svalbard: Implications for paleoenvironmental reconstructions Modern hydrology of a typical Arctic fjord (Hornsund, SW Spitsbergen, Svalbard) was investigated and compared with commonly used in paleoceanography proxies: benthic foraminiferal assemblages and their stable isotope (Δ18O and Δ13C) composition. The benthic foraminifera from Hornsund comprised 45 species and 28 genera. Their spatial variations follow the zonation pattern, resulting from the influence of Atlantic water at the fjord mouth and glacial meltwaters at the fjord head. At the mouth of the f

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Schmidt, Christiane, Emmanuelle Geslin, Joan M. Bernhard, et al. "Deposit-feeding of Nonionellina labradorica (foraminifera) from an Arctic methane seep site and possible association with a methanotroph." Biogeosciences 19, no. 16 (2022): 3897–909. http://dx.doi.org/10.5194/bg-19-3897-2022.

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Abstract. Several foraminifera are deposit feeders that consume organic detritus (dead particulate organic material with entrained bacteria). However, the role of such foraminifera in the benthic food web remains understudied. Foraminifera feeding on methanotrophic bacteria, which are 13C-depleted, may cause negative cytoplasmic and/or calcitic δ13C values. To test whether the foraminiferal diet includes methanotrophs, we performed a short-term (20 h) feeding experiment with Nonionellina labradorica from an active Arctic methane-emission site (Storfjordrenna, Barents Sea) using the marine meth

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Khanolkar, Sonal, Tathagata Roy Choudhury, Pratul Kumar Saraswati, and Santanu Banerjee. "Late Paleocene-Early Eocene Foraminiferal Assemblage and Carbon Isotope Excursion Indicating Hyperthermal Events in Paleotropical Succession of Northwestern India." Journal of Foraminiferal Research 51, no. 1 (2021): 4–13. http://dx.doi.org/10.2113/gsjfr.51.1.4.

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ABSTRACT This study focuses on marine sediments of the late Paleocene-early Eocene (∼55.5–49 Ma) interval from the Jaisalmer Basin of western India. It demarcates the Paleocene Eocene Thermal Maximum (PETM) using foraminiferal biostratigraphy and carbon isotope stratigraphy. A negative carbon isotope excursion of 4.5‰ delineates the PETM within the basin. We demarcate five foraminiferal biofacies using the detrended correspondence analysis. These reflect characteristics of ecology, bathymetry, relative age, and environment of deposition of the foraminifera. They record the response of foramini

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A. Rostami, Masoud, Fabrizio Frontalini, Eric Armynot du Châtelet, et al. "Understanding the Distributions of Benthic Foraminifera in the Adriatic Sea with Gradient Forest and Structural Equation Models." Applied Sciences 13, no. 2 (2023): 794. http://dx.doi.org/10.3390/app13020794.

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In the last three decades, benthic foraminiferal ecology has been intensively investigated to improve the potential application of these marine organisms as proxies of the effects of climate change and other global change phenomena. It is still challenging to define the most important factors affecting foraminiferal communities and derived faunistic parameters. In this study, we examined the abiotic-biotic relationships of foraminiferal communities in the central-southern area of the Adriatic Sea using modern machine learning techniques. We combined gradient forest (Gf) and structural equation

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Salmon, K. H., P. Anand, P. F. Sexton, and M. Conte. "Upper ocean mixing controls the seasonality of planktonic foraminifer fluxes and associated strength of the carbonate pump in the oligotrophic North Atlantic." Biogeosciences Discussions 11, no. 8 (2014): 12223–54. http://dx.doi.org/10.5194/bgd-11-12223-2014.

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Abstract. Oligotrophic regions represent up to 75% of Earth's open-ocean environments, and are typically characterized by nutrient-limited upper-ocean mixed layers. They are thus areas of major importance in understanding the plankton community dynamics and biogeochemical fluxes. Here we present fluxes of total planktonic foraminifera and eleven planktonic foraminifer species from a bi-weekly sediment trap time series in the oligotrophic Sargasso Sea, subtropical western North Atlantic Ocean at 1500 m water depth, over two ∼2.5 year intervals, 1998–2000 and 2007–2010. Foraminifera flux was clo

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de Nooijer, L. J., G. Langer, G. Nehrke, and J. Bijma. "Physiological controls on seawater uptake and calcification in the benthic foraminifer <i>Ammonia tepida</i>." Biogeosciences 6, no. 11 (2009): 2669–75. http://dx.doi.org/10.5194/bg-6-2669-2009.

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Abstract. To analyze the relation between seawater uptake and calcification, we incubated juveniles of the benthic foraminifer Ammonia tepida with various fluorescent probes and visualised them afterwards with confocal laser scanning microscopy. Vesicle membranes, Ca ions and vacuole fluids were followed with various tracers and showed for the first time that endocytosis of seawater is part of the calcification process in Ammonia tepida. Data on the intracellular Ca ion cycling allowed for calculating a preliminary cellular Ca budget during foraminiferal calcification. This showed that the fre

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Celestine NwiteNwojiji, Fabienne Marret, Godwin Nwonumara Nkwuda, and Norbert I. Nnakenyi. "Evidence of traits and faunal turnover in planktonic foraminifera during extreme climate: A biological Traits Analysis approach." World Journal of Advanced Research and Reviews 27, no. 1 (2025): 1830–46. https://doi.org/10.30574/wjarr.2025.27.1.2697.

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The Palaeocene-Eocene Thermal Maximum (PETM) is a paleoclimatic event associated with massive radiation and the extinction of planktonic foraminifera. It is still unclear which planktonic foraminiferal attribute was responsible for its enormous turnover during the PETM event. It has been hypothesized that biotic interaction with the environment is driven by biological traits rather than faunal composition. This idea stimulated this research where a combination of faunal composition and biological traits of planktonic foraminifera from Ocean Drilling Program (ODP) Site 1265 (Walvis Ridge, SE At

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Glock, N., J. Schönfeld, A. Eisenhauer, C. Hensen, J. Mallon, and S. Sommer. "The role of benthic foraminifera in the benthic nitrogen cycle of the Peruvian oxygen minimum zone." Biogeosciences 10, no. 7 (2013): 4767–83. http://dx.doi.org/10.5194/bg-10-4767-2013.

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Abstract. The discovery that foraminifera are able to use nitrate instead of oxygen as an electron acceptor for respiration has challenged our understanding of nitrogen cycling in the ocean. It was thought before that only prokaryotes and some fungi are able to denitrify. Rate estimates of foraminiferal denitrification have been very sparse and limited to specific regions in the oceans, not comparing stations along a transect of a certain region. Here, we present estimates of benthic foraminiferal denitrification rates from six stations at intermediate water depths in and below the Peruvian ox

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du Chatelet, Eric Armynot, Delphine Degre, Pierre-Guy Sauriau, and Jean-Pierre Debenay. "Distribution of living benthic foraminifera in relation with environmental variables within the Aiguillon cove (Atlantic coast, France): improving knowledge for paleoecological interpretation." Bulletin de la Société Géologique de France 180, no. 2 (2009): 131–44. http://dx.doi.org/10.2113/gssgfbull.180.2.131.

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Abstract Search for bioindicators in marine environments has provided new tools for monitoring global and local natural changes. Among these tools, benthic foraminifera play a central role. More accurate paleogeographical and paleoecological reconstructions become possible on the basis of the ecology of recent foraminifera. Nevertheless, factors acting on foraminiferal assemblages are still partially understood. The aim of this study is to correlate the distribution patterns of living (stained) benthic foraminifera with environmental variables such as tidal elevation, interstitial pore water s

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Grigoratou, Maria, Fanny M. Monteiro, Daniela N. Schmidt, Jamie D. Wilson, Ben A. Ward, and Andy Ridgwell. "A trait-based modelling approach to planktonic foraminifera ecology." Biogeosciences 16, no. 7 (2019): 1469–92. http://dx.doi.org/10.5194/bg-16-1469-2019.

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Abstract. Despite the important role of planktonic foraminifera in regulating the ocean carbonate production and their unrivalled value in reconstructing paleoenvironments, our knowledge on their ecology is limited. A variety of observational techniques such as plankton tows, sediment traps and experiments have contributed to our understanding of foraminifera ecology. But, fundamental questions around costs and benefits of calcification and the effect of nutrients, temperature and ecosystem structure on these organisms remain unanswered. To tackle these questions, we take a novel mechanistic a

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Jeffreys, R. M., E. H. Fisher, A. J. Gooday, K. E. Larkin, G. A. Wolff, and D. S. M. Billett. "The trophic and metabolic pathways of foraminifera in the Arabian Sea: evidence from cellular stable isotopes." Biogeosciences Discussions 11, no. 12 (2014): 18145–88. http://dx.doi.org/10.5194/bgd-11-18145-2014.

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Abstract. The Arabian Sea is a region of elevated productivity with the highest globally recorded fluxes of particulate organic matter (POM) to the deep ocean, providing an abundant food source for fauna at the seafloor. However, benthic communities are also strongly influenced by an intense oxygen minimum zone (OMZ), which impinges on the continental slope at bathyal depths. We compared the trophic ecology of foraminifera on the Oman and Pakistan margins of the Arabian Sea (140–3185 m water depth). Organic carbon concentrations of surficial sediments were higher on the Oman margin (3.32 ± 1.4

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Glock, N., J. Schönfeld, A. Eisenhauer, C. Hensen, J. Mallon, and S. Sommer. "The role of benthic foraminifera in the benthic nitrogen cycle of the Peruvian oxygen minimum zone." Biogeosciences Discussions 9, no. 12 (2012): 17775–817. http://dx.doi.org/10.5194/bgd-9-17775-2012.

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Abstract. The discovery that foraminifera are able to use nitrate instead of oxygen as energy source for their metabolism has challenged our understanding of nitrogen cycling in the ocean. It was evident before that only prokaryotes and fungi are able to denitrify. Rate estimates of foraminiferal denitrification were very sparse on a regional scale. Here, we present estimates of benthic foraminiferal denitrification rates from six stations at intermediate water depths in and below the Peruvian oxygen minimum zone (OMZ). Foraminiferal denitrification rates were calculated from abundance and ass

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SHMORHUN, NINA MARIA-ELENA, STEPHEN J. CULVER, DAVID J. MALLINSON, et al. "CHARACTERIZING MODERN AND HOLOCENE BARRIER-ISLAND ENVIRONMENTS WITH FORAMINIFERAL ASSEMBLAGES: AN EXAMPLE FROM A WAVE-DOMINATED, MICROTIDAL BARRIER-ISLAND SYSTEM, NORTH CAROLINA, USA." PALAIOS 37, no. 8 (2022): 443–70. http://dx.doi.org/10.2110/palo.2022.011.

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Abstract Recent research has shown that sedimentological information in barrier-island settings may provide more detailed interpretations of some past coastal environments than interpretations based upon foraminifera. This research investigates whether targeted documentation of modern foraminifera in specific coastal environments can result in higher resolution micropaleontology-based paleoenvironmental reconstructions. Bear Island, North Carolina, characterized by little human disturbance, was chosen for detailed documentation of foraminifera in modern barrier-island-related environments. Mod

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Davis, Catherine V., Tessa M. Hill, Ann D. Russell, Brian Gaylord, and Jaime Jahncke. "Seasonality in planktic foraminifera of the central California coastal upwelling region." Biogeosciences 13, no. 18 (2016): 5139–50. http://dx.doi.org/10.5194/bg-13-5139-2016.

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Abstract. The close association between planktic foraminiferal assemblages and local hydrography make foraminifera invaluable proxies for environmental conditions. Modern foraminiferal seasonality is important for interpreting fossil distributions and shell geochemistry as paleoclimate proxies. Understanding this seasonality in an active upwelling area is also critical for anticipating which species may be vulnerable to future changes in upwelling intensity and ocean acidification. Two years (2012–2014) of plankton tows, along with conductivity–temperature–depth profiles and carbonate chemistr

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Wit, J. C., L. J. de Nooijer, C. Barras, F. J. Jorissen, and G. J. Reichart. "A reappraisal of the vital effect in cultured benthic foraminifer <I>Bulimina marginata</I> on Mg/Ca values: assessing temperature uncertainty relationships." Biogeosciences 9, no. 9 (2012): 3693–704. http://dx.doi.org/10.5194/bg-9-3693-2012.

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Abstract. The reconstruction of past temperatures is often achieved through measuring the Mg/Ca value of foraminiferal test carbonate. The diversity in foraminiferal Mg/Ca–temperature calibrations suggests that there is also a biological control on this proxy. This study presents a new Mg/Ca–temperature calibration for the benthic foraminifer Bulimina marginata, based on cultures under a range of temperatures (4–14 °C). Measured Mg/Ca values for B. marginata correlate with temperature (Mg/Ca = (1.10 ± 0.10) e(0.045±0.009)T, R2 = 0.28 p < 0.01). The inter-individual variability is, however,

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Wit, J. C., L. J. de Nooijer, M. Wolthers, and G. J. Reichart. "A novel salinity proxy based on Na incorporation into foraminiferal calcite." Biogeosciences Discussions 10, no. 3 (2013): 6039–63. http://dx.doi.org/10.5194/bgd-10-6039-2013.

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Abstract. Salinity and temperature determine seawater density and differences in both thereby control global themohaline circulation. Whereas numerous proxies have been calibrated and applied to reconstruct temperature, a direct and independent proxy for salinity is still missing. Ideally, a new proxy for salinity should target one of the direct constituents of dissolved salt, such as [Na+] or [Cl−]. This study investigates the impact of salinity on foraminiferal Na/Ca values by laser ablation ICP-MS analyzes of specimens of the benthic foraminifer Ammonia tepida cultured at a range of salinit

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Jesus, Bruno, Thierry Jauffrais, Erik C. L. Trampe, et al. "Kleptoplast distribution, photosynthetic efficiency and sequestration mechanisms in intertidal benthic foraminifera." ISME Journal 16, no. 3 (2021): 822–32. http://dx.doi.org/10.1038/s41396-021-01128-0.

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AbstractForaminifera are ubiquitously distributed in marine habitats, playing a major role in marine sediment carbon sequestration and the nitrogen cycle. They exhibit a wide diversity of feeding and behavioural strategies (heterotrophy, autotrophy and mixotrophy), including species with the ability of sequestering intact functional chloroplasts from their microalgal food source (kleptoplastidy), resulting in a mixotrophic lifestyle. The mechanisms by which kleptoplasts are integrated and kept functional inside foraminiferal cytosol are poorly known. In our study, we investigated relationships

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Langlet, D., E. Geslin, C. Baal, et al. "Foraminiferal survival after long-term in situ experimentally induced anoxia." Biogeosciences 10, no. 11 (2013): 7463–80. http://dx.doi.org/10.5194/bg-10-7463-2013.

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Abstract. Anoxia was successfully induced in four benthic chambers installed at 24 m depth on the northern Adriatic seafloor from 9 days to 10 months. To accurately determine whether benthic foraminifera can survive experimentally induced prolonged anoxia, the CellTrackerTM Green method was applied and calcareous and agglutinated foraminifera were analyzed. Numerous individuals were found living at all sampling times and at all sampling depths (to 5 cm), supported by a ribosomal RNA analysis that revealed that certain benthic foraminifera were active after 10 months of anoxia. The results show

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van Dijk, Inge, Lennart J. de Nooijer, and Gert-Jan Reichart. "Trends in element incorporation in hyaline and porcelaneous foraminifera as a function of <i>p</i>CO<sub>2</sub>." Biogeosciences 14, no. 3 (2017): 497–510. http://dx.doi.org/10.5194/bg-14-497-2017.

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Abstract. In this study we analyzed the impact of seawater carbonate chemistry on the incorporation of elements in both hyaline and porcelaneous larger benthic foraminifera. We observed a higher incorporation of Zn and Ba when pCO2 increases from 350 to 1200 ppm. Modeling the activity of free ions as a function of pCO2 shows that speciation of some elements (like Zn and Ba) is mainly influenced by the formation of carbonate complexes in seawater. Hence, differences in foraminiferal uptake of these might be related primarily by the speciation of these elements in seawater. We investigated diffe

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Hussain, Ajhar, Nepal Singh, Fatma Ahmed, Nimra Ahsan, Ayan Ahmad, and Nuzhat Fatima. "Foraminifera: A Proxy for Ecology, Climate Change and Its Associated Hydro−Environment." UTTAR PRADESH JOURNAL OF ZOOLOGY 44, no. 23 (2023): 197–212. http://dx.doi.org/10.56557/upjoz/2023/v44i233780.

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Paleocanography, the study of ancient oceans, relies heavily on a wide range of proxies and methodologies to reconstruct past oceanic conditions. Among these tools, foraminifera, microscopic marine organisms with calcium carbonate shells, have played a pivotal role. Over the years, researchers have harnessed the insights provided by foraminifera to unlock the secrets of Earth's oceans throughout geological history. This comprehensive review explores the various ways in which foraminifera have been employed in paleocanography, shedding light on past climate, ocean circulation, ecology, and more

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Daviray, Maxime, Emmanuelle Geslin, Nils Risgaard-Petersen, Vincent V. Scholz, Marie Fouet, and Edouard Metzger. "Potential impacts of cable bacteria activity on hard-shelled benthic foraminifera: implications for their interpretation as bioindicators or paleoproxies." Biogeosciences 21, no. 4 (2024): 911–28. http://dx.doi.org/10.5194/bg-21-911-2024.

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Abstract. Hard-shelled foraminifera are protists able to build a calcareous or agglutinated shell (called a “test”). Here we study the impact of sediment acidification on calcareous test preservation. For this study, sediment cores were sampled in the macrotidal Auray estuary located on the French Atlantic coast. Living and dead foraminifera were quantified until 5 cm depth and discriminated using the Cell-Tracker™ Green vital marker. The pH and oxygen profiles combined with quantitative polymerase chain reaction (qPCR) suggested that cable bacteria were most likely to cause the acidifying pro

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Jeffreys, R. M., E. H. Fisher, A. J. Gooday, K. E. Larkin, D. S. M. Billett, and G. A. Wolff. "The trophic and metabolic pathways of foraminifera in the Arabian Sea: evidence from cellular stable isotopes." Biogeosciences 12, no. 6 (2015): 1781–97. http://dx.doi.org/10.5194/bg-12-1781-2015.

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Abstract. The Arabian Sea is a region of elevated productivity with the highest globally recorded fluxes of particulate organic matter (POM) to the deep ocean, providing an abundant food source for fauna at the seafloor. However, benthic communities are also strongly influenced by an intense oxygen minimum zone (OMZ), which impinges on the continental slope from 100 to 1000 m water depth. We compared the trophic ecology of foraminifera on the Oman and Pakistan margins of the Arabian Sea (140–3185 m water depth). These two margins are contrasting both in terms of the abundance of sedimentary or

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Dubicka, Zofia, Maria Gajewska, Wojciech Kozłowski, Pamela Hallock, and Johann Hohenegger. "Photosynthetic activity in Devonian Foraminifera." Biogeosciences 18, no. 20 (2021): 5719–28. http://dx.doi.org/10.5194/bg-18-5719-2021.

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Abstract. Photosynthetically active foraminifera are prolific carbonate producers in warm, sunlit, surface waters of the oceans. Foraminifera have repeatedly developed mixotrophic strategies (i.e., the ability of an organism or holobiont to both feed and photosynthesize) by facultative or obligate endosymbiosis with microalgae or by sequestering plastids (kleptoplasts) of ingested algae. Mixotrophy provides access to essential nutrients (e.g., N, P) through feeding while providing carbohydrates and lipids produced through photosynthesis, resulting in substantial energetic advantage in warm, su

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Amao, Abduljamiu O., Michael A. Kaminski, and Fabrizio Frontalini. "The Enduring Legacy: A Scientometric Analysis of Foraminiferal Research Over Two Centuries." Micropaleontology 71, no. 2 (2025): 109–40. https://doi.org/10.47894/mpal.71.2.01.

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Foraminifera have emerged as essential tools for understanding Earth's history and monitoring the health of marine ecosystems. This scientometric analysis offers a comprehensive overview of the enduring legacy and evolving landscape of foraminiferal research over more than two centuries. By leveraging data from three extensive bibliographic databases, we collated a dataset of over 58,000 publications spanning from 1824 to 2023. Our analysis reveals an exponential growth in foraminiferal research, with an annual growth rate of 3.35%. The dataset shows a strong increase in citation impact, with

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Cherchi, A., C. Buosi, P. Zuddas, and G. De Giudici. "Bioerosion by microbial euendoliths in benthic foraminifera from heavy metal-polluted coastal environments of Portovesme (South-Western Sardinia, Italy)." Biogeosciences Discussions 9, no. 8 (2012): 11103–37. http://dx.doi.org/10.5194/bgd-9-11103-2012.

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Abstract. A monitoring survey of the coastal area facing the industrial area of Portoscuso-Portovesme (South-Western Sardinia, Italy) revealed intense bioerosional processes. Benthic foraminifera collected at the same depth (about 2 m) but at different distances from the pollution source show extensive microbial infestation, anomalous Mg/Ca molar ratios and high levels of heavy metals in the shell associated with a decrease in foraminifera richness, population density and biodiversity with the presence of morphologically abnormal specimens. We found that carbonate dissolution induced by euendo

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Cherchi, A., C. Buosi, P. Zuddas, and G. De Giudici. "Bioerosion by microbial euendoliths in benthic foraminifera from heavy metal-polluted coastal environments of Portovesme (south-western Sardinia, Italy)." Biogeosciences 9, no. 11 (2012): 4607–20. http://dx.doi.org/10.5194/bg-9-4607-2012.

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Abstract. A monitoring survey of the coastal area facing the industrial area of Portoscuso-Portovesme (south-western Sardinia, Italy) revealed intense bioerosional processes. Benthic foraminifera collected at the same depth (about 2 m) but at different distances from the pollution source show extensive microbial infestation, anomalous Mg/Ca molar ratios and high levels of heavy metals in the shell associated with a decrease in foraminifera richness, population density and biodiversity with the presence of morphologically abnormal specimens. We found that carbonate dissolution induced by euendo

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Brinkmann, Inda, Christine Barras, Tom Jilbert, et al. "Drought recorded by Ba∕Ca in coastal benthic foraminifera." Biogeosciences 19, no. 9 (2022): 2523–35. http://dx.doi.org/10.5194/bg-19-2523-2022.

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Abstract. Increasing occurrences of extreme weather events, such as the 2018 drought over northern Europe, are a concerning issue under global climate change. High-resolution archives of natural hydroclimate proxies, such as rapidly accumulating sediments containing biogenic carbonates, offer the potential to investigate the frequency and mechanisms of such events in the past. Droughts alter the barium (Ba) concentration of near-continent seawater through the reduction in Ba input from terrestrial runoff, which in turn may be recorded as changes in the chemical composition (Ba/Ca) of foraminif

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Diz, P., F. J. Jorissen, G. J. Reichart, et al. "Interpretation of benthic foraminiferal stable isotopes in subtidal estuarine environments." Biogeosciences Discussions 6, no. 4 (2009): 7453–80. http://dx.doi.org/10.5194/bgd-6-7453-2009.

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Abstract. Here we present a novel approach for the interpretation of stable isotope signatures recorded in benthic foraminifera from subtidal estuarine environments. The stable isotopic composition (δ18O and δ13C) of living Ammonia tepida and Haynesina germanica is examined in four stations in the Auray River estuary (Gulf of Morbihan, France) sampled in two contrasting seasons, spring 2006 and winter 2007. Comparing benthic foraminiferal δ18O measurements with theoretical oxygen isotopic equilibrium values, calculated on the basis of water temperature and salinity measurements in the upper an

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Diz, P., F. J. Jorissen, G. J. Reichart, et al. "Interpretation of benthic foraminiferal stable isotopes in subtidal estuarine environments." Biogeosciences 6, no. 11 (2009): 2549–60. http://dx.doi.org/10.5194/bg-6-2549-2009.

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Abstract. Here we present a novel approach for the interpretation of stable isotope signatures recorded in benthic foraminifera from subtidal estuarine environments. The stable isotopic composition (δ18O and δ13C) of living Ammonia tepida and Haynesina germanica is examined at four stations in the Auray River estuary (Gulf of Morbihan, France) sampled in two contrasting seasons, spring 2006 and winter 2007. Comparing benthic foraminiferal δ18O measurements with theoretical oxygen isotopic equilibrium values, calculated on the basis of water temperature and salinity measurements in the upper an

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