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Amphistegina gibbosa

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Journal Article
Published: 01 January 2018
Journal of Foraminiferal Research (2018) 48 (1): 4–16.
... of the diatom symbionts within the foraminifer Amphistegina gibbosa . Data on bleaching prevalence and photochemical efficiency for photosystem II (PSII) were obtained from specimens collected at Tennessee Reef, Florida reef tract, USA, as close as logistically feasible to each equinox and solstice in 2012...
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Journal Article
Published: 01 October 1997
Journal of Foraminiferal Research (1997) 27 (4): 264–269.
Journal Article
Published: 01 January 1992
Journal of Foraminiferal Research (1992) 22 (1): 1–12.
Journal Article
Published: 01 April 1979
Journal of Foraminiferal Research (1979) 9 (2): 85–105.
Image
Digital photomicrographs of four individuals of  <span class="search-highlight">Amphistegina</span> <span class="search-highlight">gibbosa</span> , Rio...
Published: 18 April 2019
Figure 1. Digital photomicrographs of four individuals of Amphistegina gibbosa , Rio Grande do Norte. Scale bars = 0.5 mm. 1–4 a, dorsal view; b, ventral view. 3–4 c, edge view. 1, 4 biconvex (lenticular) form. 2, 3 planoconvex form.
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Abundance (forams&#x2F;50 cm 3 ) of  <span class="search-highlight">Amphistegina</span> <span class="search-highlight">gibbosa</span>  and  Amphisorus hempr...
Published: 18 April 2019
Table 4. Abundance (forams/50 cm 3 ) of Amphistegina gibbosa and Amphisorus hemprichii at Pirangi (P) and Maracajaú (M) stations in 2013 and 2014.
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Evenness ( E ) plotted against  <span class="search-highlight">Amphistegina</span> <span class="search-highlight">gibbosa</span>  density with natural ...
Published: 01 October 2009
F igure 5. Evenness ( E ) plotted against Amphistegina gibbosa density with natural logarithmic regressions for Conch Reef sites C-10, C-18, and C-30, and Tennessee Reef sites T-8 [r=0.64, N=97, p<0.01, y = − 0.105ln(x) + 1.0475] and T-20 (r=0.74, N=18, p<0.01, y = − 0.09ln(x) + 0.627
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1–3, 6  <span class="search-highlight">Amphistegina</span> <span class="search-highlight">gibbosa</span>  from Florida Keys.  1  general view of test s...
Published: 01 January 2002
PLATE 1 1–3, 6 Amphistegina gibbosa from Florida Keys. 1 general view of test showing circular trace of attack by Floresina amphiphaga (see arrow), scale bar = 200 μm; 2 enlargement of trace shown in 1, scale bar = 50 μm; 3 general view of second specimen and attack trace (see arrow
Journal Article
Published: 31 October 2022
Journal of Foraminiferal Research (2022) 52 (4): 212–228.
... precision based on in-house standards is 0.07‰ for δ 18 O and 0.03‰ for δ 13 C. To this end, we have analyzed nine symbiont and non-symbiont-bearing species belonging to the orders Rotaliida [ Amphistegina gibbosa (d'Orbingny), Heterostegina depressa (d'Orbingny), Buccella peruviana (d'Orbingny...
Journal Article
Published: 18 April 2019
Journal of Foraminiferal Research (2019) 49 (2): 178–190.
... 717 unique OTUs. The 13 soritid specimens shared 26 OTUs, 23 of which represented Proteobacteria, predominantly of the bacterial family Rhodobacteraceae. The fourth foraminiferal species, Amphistegina gibbosa (Order Rotaliida) hosts diatom endosymbionts. Bacterial DNA extraction was attempted on 16 Am...
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Journal Article
Published: 01 October 2011
Journal of Foraminiferal Research (2011) 41 (4): 314–325.
... a for the chlorophyte-bearing soritid foraminifers Archaias ( Ar. ) angulatus and Cyclorbiculina compressa , and the diatom-bearing amphisteginids Amphistegina gibbosa , Am. lessonii , and Am. radiata . Chlorophyll a concentrations were 40–50% lower in C. compressa than in the four other species. Photosynthesis...
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Journal Article
Published: 10 February 2010
Geological Magazine (2010) 147 (5): 728–736.
... within which the mean percentage of iron-stained specimens per sample did not differ: (a) Globocassidulina subglobosa and Hanzawaia concentrica ; (b) Amphistegina gibbosa, Cassidulina norcrossi australis Cibicioides ex. gr. pseudoungerianus , C. io , Elphidium translucens and Quinqueloculina lamarckiana...
Journal Article
Published: 01 October 2009
Journal of Foraminiferal Research (2009) 39 (4): 267–277.
...F igure 5. Evenness ( E ) plotted against Amphistegina gibbosa density with natural logarithmic regressions for Conch Reef sites C-10, C-18, and C-30, and Tennessee Reef sites T-8 [r=0.64, N=97, p<0.01, y = − 0.105ln(x) + 1.0475] and T-20 (r=0.74, N=18, p<0.01, y = − 0.09ln(x) + 0.627...
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Journal Article
Published: 01 November 2008
Journal of Micropalaeontology (2008) 27 (2): 177–188.
... calculated separately for the DWA and SWA. Seventy significant correlations were found between the percentage abundances of individual DWA and SWA species, the two strongest correlations - both positive - being between (a) Neoconorbina terquemi and Uvigerina laevis, and (b) Amphistegina gibbosa...
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Journal Article
Published: 01 January 2002
Journal of Foraminiferal Research (2002) 32 (1): 93–95.
...PLATE 1 1–3, 6 Amphistegina gibbosa from Florida Keys. 1 general view of test showing circular trace of attack by Floresina amphiphaga (see arrow), scale bar = 200 μm; 2 enlargement of trace shown in 1, scale bar = 50 μm; 3 general view of second specimen and attack trace (see arrow...
FIGURES
Journal Article
Published: 20 January 2022
Journal of Foraminiferal Research (2022) 52 (1): 4–20.
..., where heavy metal impacts have been reported. Amphistegina gibbosa , Triloculina oblonga , and Quinqueloculina lamarckiana are represented on the outside of the bays and are indicative of high hydrodynamic marine environments. The Ipojuca and Merepe rivers presented the highest ecological index...
Journal Article
Journal: PALAIOS
Published: 01 June 2003
PALAIOS (2003) 18 (3): 236–255.
... attempted for each sieve fraction (i.e., 1,200 individuals per sample, totaling 46,003 specimens). Cluster analyses of samples characterized platform environments and distinguished four benthic foraminifera associations. Fore reef samples were characterized by abundant Amphistegina gibbosa...
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Journal Article
Published: 18 April 2019
Journal of Foraminiferal Research (2019) 49 (2): 131–140.
...Figure 1. Digital photomicrographs of four individuals of Amphistegina gibbosa , Rio Grande do Norte. Scale bars = 0.5 mm. 1–4 a, dorsal view; b, ventral view. 3–4 c, edge view. 1, 4 biconvex (lenticular) form. 2, 3 planoconvex form. ...
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Journal Article
Published: 01 February 2015
Italian Journal of Geosciences (2015) 134 (1): 9–22.
... species showed a Caribbean-type reef community, including Amphisorus hemprichii, Amphistegina gibbosa, Archaias angulatus, Heterostegina antillarum, Homotrema rubra, Peneroplis carinatus and P. proteus. The Brazilian continental margin has been well studied in the last decades, prompted by the oil...
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Journal Article
Published: 01 May 2008
Journal of Micropalaeontology (2008) 27 (1): 63–73.
... thanatacoenosis. The thanatacoenosis included 40% allochthonous Amphistegina gibbosa , Archaias angulatus and Asterigerina carinata , washed in from offshore reefs, and few planorbulinids, although the latter dominates the biocoenosis on seagrass leaves in the backreef. 12 12 2006 8 1 2008 © 2008...
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