Ammonia tepida

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Ammonia tepida
Temporal range: M Cretaceous - recent
Ammonia tepida.jpg
Live Ammonia veneta, the globally distributed species formerly misidentified as A. tepida.
Scientific classification
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SAR
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A. tepida
Binomial name
Ammonia tepida
Cushman, 1926
Synonyms [1]

Ammonia beccarii var. tepidaCushman, 1926
Rotalia beccarii var. tepidaCushman, 1926
Streblus beccarii var. tepida(Cushman, 1926)

Contents

Ammonia tepida is a benthic foraminifer living in the sediment of brackish waters. It is very similar to Ammonia beccarii , but the latter lives on the surface of red algae. [2] Once considered a globally widespread taxon, a recent genetic and morphological study has revealed that many of what were once considered members of A. tepida in fact represent other species of Ammonia, primarily Ammonia veneta , with true specimens of A. tepida only being found in Atlantic waters, off the coast of the Americas. [3]

Ecology

Ammonia tepida is found in the sediment of brackish waters. It is able to tolerate a wide range of temperatures and degrees of salinity, as well as to survive severe environmental conditions. As it is easy to keep in the laboratory, being able to reproduce both asexually and sexually without problem, it considered an ideal organism for laboratory studies. [4]

The diet of A. tepida consists mainly of other microorganisms. Algae form about 80–90% of its diet and the remaining is composed by bacteria. [5] Laboratory experiments showed that it may also prey on small animals, such as nematodes, copepods and mollusk larvae. [6]

Related Research Articles

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Foraminifera are single-celled organisms, members of a phylum or class of Rhizarian protists characterized by streaming granular ectoplasm for catching food and other uses; and commonly an external shell of diverse forms and materials. Tests of chitin are believed to be the most primitive type. Most foraminifera are marine, the majority of which live on or within the seafloor sediment, while a smaller number float in the water column at various depths, which belong to the suborder Globigerinina. Fewer are known from freshwater or brackish conditions, and some very few (nonaquatic) soil species have been identified through molecular analysis of small subunit ribosomal DNA.

<span class="mw-page-title-main">Rotaliida</span> Order of single-celled organisms

The Rotaliida are an order of Foraminifera, characterized by multilocular tests (shells) composed of bilamellar perforate hyaline lamellar calcite that may be optically radial or granular.

<span class="mw-page-title-main">Joseph Augustine Cushman</span> American micropaleontologist (1881–1949)

Joseph Augustine Cushman was an American micropaleontologist and academic. He specialized in the study of marine protozoans (foraminifera) and became the foremost foraminiferologist of the first half of the twentieth century, developing to a "world-famous system of discovering petroleum deposits". He also was a founding father of Kappa Delta Phi fraternity.

Lukas Hottinger was a paleontologist, biologist and geologist. Hottinger collaborated with the Natural History Museum of Basel (Switzerland).

<i>Quinqueloculina</i> Genus of single-celled organisms

Quinqueloculina is a genus of foraminifera in the family Miliolidae.

Carterina is a genus in the family Trochamminidae, composing its own subfamily Carterininae. The genus is described from specimens gathered during the Challenger expedition's circumnavigation of the Earth from 1872-1876.

<span class="mw-page-title-main">Carterinida</span> Order of single-celled organisms

Carterinida is an order of multi-chambered foraminifera within the Globothalamea. Members of this order form hard tests out of thin calcite rods known as spicules, which are held together by a proteinaceous matrix. As of August 2023, the order contains a single family, Carterinidae.

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Globigerinoides is an extant genus of shallow-water planktonic foraminifera of family Globigerinidae. First appearing in the Oligocene these foraminifera are found in all modern oceans. Species of this genus occupy the euphotic zone, generally at depths between 10-50m, in waters which cover a range of salinities and temperatures. They are a shorter lived species, especially when compared to Globorotalia genus. As a genus Globigerinoides is widely used in various fields of research including biostratigraphy, isotope geochemistry, biogeochemistry, climatology, and oceanography.

<i>Peneroplis</i> Genus of single-celled organisms

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Bruce William Hayward is a New Zealand geologist, marine ecologist, and author. He is known as a leading expert on living and fossil foraminifera.

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<i>Pulleniatina obliquiloculata</i> Planktonic foraminifera

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References

  1. "WoRMS - World Register of Marine Species - Ammonia tepida (Cushman, 1926)".
  2. Debenay, Jean-Pierre; Bénéteau, Eric; Zhang, Jijun; Stouff, Véronique; Geslin, Emmanuelle; Redois, Fabrice; Fernandez-Gonzalez, Marialsira (1998). "Ammonia beccarii and Ammonia tepida (Foraminifera): morphofunctional arguments for their distinction". Marine Micropaleontology. 34 (3–4): 235–244. doi:10.1016/S0377-8398(98)00010-3. ISSN   0377-8398.
  3. Hayward, B.W.; Holzmann, M; Pawlowski, J; Parker, J.H.; Kaushik, T; Toyofuku, M.S.; Tsuchiya, M (2021). "'Molecular and morphological taxonomy of living Ammonia and related taxa (Foraminifera) and their biogeography". Micropaleontology. 67 (2–3): 109–313. doi:10.47894/mpal.67.2-3.01. ISSN   0377-8398.
  4. Munsel, D.; Kramar, U.; Dissard, D.; Nehrke, G.; Berner, Z.; Bijma, J.; Reichart, G.-J.; Neumann, T. (2010). "Heavy metal incorporation in foraminiferal calcite: results from multi-element enrichment culture experiments with Ammonia tepida". Biogeosciences. 7 (8): 2339–2350. doi: 10.5194/bg-7-2339-2010 . ISSN   1726-4189. Open Access logo PLoS transparent.svg
  5. Pascal, Pierre-Yves; Dupuy, Christine; Richard, Pierre; Niquil, Nathalie (2008). "Bacterivory in the common foraminifer Ammonia tepida: Isotope tracer experiment and the controlling factors". Journal of Experimental Marine Biology and Ecology. 359 (1): 55–61. doi:10.1016/j.jembe.2008.02.018. ISSN   0022-0981.
  6. Dupuy, C.; Rossignol, L.; Geslin, E.; Pascal, P.-Y. (2010). "Predation of mudflat meio-macrofaunal metazoans by a calcareous foraminifer, Ammonia tepida (Cushman, 1926)" (PDF). The Journal of Foraminiferal Research. 40 (4): 305–312. doi:10.2113/gsjfr.40.4.305. ISSN   1937-2795.

Further reading

Ruiz, Francisco; Gonzalez-Regalado, Maria Luz; Abad, Manuel; Munoz, Juan Manuel; Pino, Rafael (October 2007). "New applications of the Poisson distribution in micropalaeontology: relationships between environmental variables and the Ammonia tepida distribution in the south-western Spanish estuaries". Terra Nova. 19 (5): 372. doi:10.1111/j.1365-3121.2007.00761.x.