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  • 1
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    Experimental data on photophysiology and growth rates of Pararotalia calcariformata (2015)
    PANGAEA
    In:  Supplement to: Schmidt, Christiane; Morard, Raphael; Almogi-Labin, Ahuva; Weinmann, A E; Titelboim, Danna; Abramovich, Sigal; Kucera, Michal (2015): Recent Invasion of the Symbiont-Bearing Foraminifera Pararotalia into the Eastern Mediterranean Facilitated by the Ongoing Warming Trend. PLoS ONE, 10(8), e0132917, https://doi.org/10.1371/journal.pone.0132917
    Details
    Publication Date: 2023-03-03
    Description: The eastern Mediterranean is a hotspot of biological invasions. Numerous species of Indo-pacific origin have colonized the Mediterranean in recent times, including tropical symbiont-bearing foraminifera. Among these is the species Pararotalia calcariformata. Unlike other invasive foraminifera, this species has been discovered only two decades ago and is restricted to the eastern Mediterranean coast. Combining ecological, genetic and physiological observations, we attempt to explain the recent invasion of this species in the Mediterranean Sea. Using morphological and genetic data, we confirm the species attribution to P. calcariformata McCulloch 1977 and identify its symbionts as a consortium of diatom species dominated by Minutocellus polymorphus. We document photosynthetic activity of its endosymbionts using Pulse Amplitude Modulated Fluorometry and test the effects of elevated temperatures on growth rates of asexual offspring. The culturing of asexual offspring for 120 days shows a 30-day period of rapid growth followed by a period of slower growth. A subsequent 48-day temperature sensitivity experiment indicates a similar developmental pathway and high growth rate at 28°C, whereas an almost complete inhibition of growth was observed at 20°C and 35°C. This indicates that the offspring of this species may have lower tolerance to cold temperatures than what would be expected for species native to the Mediterranean. We expand this hypothesis by applying a Species Distribution Model (SDM) based on modern occurrences in the Mediterranean using three environmental variables: irradiance, turbidity and yearly minimum temperature. The model reproduces the observed restricted distribution and indicates that the range of the species will drastically expand westwards under future global change scenarios. We conclude that P. calcariformata established a population in the Levant because of the recent warming in the region. In line with observations from other groups of organisms, our results indicate that continued warming of the eastern Mediterranean will facilitate the invasion of more tropical marine taxa into the Mediterranean, disturbing local biodiversity and ecosystem structure.
    Keywords: Center for Marine Environmental Sciences; MARUM
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Limitation Availability
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  • 2
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    Planktonic foraminifera in the Maastrichtian of Hor-Hahar
    PANGAEA
    In:  Supplement to: Abramovich, Sigal; Yovel-Corem, Shlomit; Almogi-Labin, Ahuva; Benjamini, Chaim (2010): Global climate change and planktic foraminiferal response in the Maastrichtian. Paleoceanography, 25(2), PA2201, https://doi.org/10.1029/2009PA001843
    Details
    Publication Date: 2023-05-12
    Description: The lengthy warm, stable climate of the Cretaceous terminated in the Campanian with a cooling trend, interrupted in the early and latest Maastrichtian by two events of global warming, at ~70-68 Ma and at 65.78-65.57 Ma. These climatic oscillations had a profound effect on pelagic ecosystems, especially on planktic foraminiferal populations. Here we compare biotic responses in the tropical-subtropical (Tethyan) open ocean and mesotrophic (Zin Valley, Israel) and oligotrophic (Tunisia) slopes, which correlate directly with global warming and cooling. The two warming events coincide with blooms of Guembelitria, an extreme opportunist genus best known as the main survivor of the Cretaceous-Paleogene (K-Pg) catastrophe. In the Maastrichtian, Guembelitria bloomed in the uppermost surface water above shelf and slope environments but failed to reach the open ocean as it did at K-Pg. The coldest interval of the late Maastrichtian (~68-65.78 Ma) is marked by an acme of the otherwise rare species Gansserina gansseri, a deep-dwelling keeled globotruncanid. The G. gansseri acme event can be traced from the deep ocean even onto the Tethyan slope, marking copious production and circulation of cold intermediate water. This acme is abruptly terminated by extinction of the species, a dramatic reversal attributed to a short-term global warming episode. This extinction corresponds precisely with the second bloom of Guembelitria that began ~300 kyr prior to the K-Pg event. The antithetical relationship between blooming of Guembelitria and the G. gansseri acme reflects planktic foraminiferal sensitivity to warm-cool-warm-cool climatic oscillations marking the end of the Cretaceous.
    Keywords: Hor-Hahar; Israel; OUTCROP; Outcrop sample
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Limitation Availability
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  • 3
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    (Sheet A) Maximum quantum yield measured on two populations collected of Pararotalia calcariformata in 11/2012 and 04/2013 (n=14-48) and monitored in the laboratory for several month (2015)
    PANGAEA
    Details
    Publication Date: 2023-03-03
    Keywords: Biological sample; BIOS; Center for Marine Environmental Sciences; Country; DATE/TIME; Eastern_Mediterranean; Eastern Mediterranean; MARUM; Maximum photochemical quantum yield of photosystem II; Sampling date
    Type: Dataset
    Format: text/tab-separated-values, 642 data points
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  • 4
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    (Sheet B) Rapid light curve showing relative electron transport rates (rETR) under different levels of photosynthetically active radiation (PAR) on low-light adapted specimens (n=30) of Pararotalia calcariformata (2015)
    PANGAEA
    Details
    Publication Date: 2023-03-03
    Keywords: Biological sample; BIOS; Calculated, Y(II) X PAR; Center for Marine Environmental Sciences; DATE/TIME; Eastern_Mediterranean; Eastern Mediterranean; Effective quantum yield; Electron transport rate, relative; MARUM; Number of measurements; Radiation, photosynthetically active
    Type: Dataset
    Format: text/tab-separated-values, 992 data points
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    DATA PANGAEA
  • 5
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    (Sheet C) Pararotalia calcariformata shell diameter of asexual offspring under culturing conditions showing rapid and slower growth phases (2015)
    PANGAEA
    Details
    Publication Date: 2023-03-03
    Keywords: Biological sample; BIOS; Center for Marine Environmental Sciences; Chamber number; DATE/TIME; Day of experiment; Eastern_Mediterranean; Eastern Mediterranean; MARUM; Number; Pararotalia calcariformata, diameter
    Type: Dataset
    Format: text/tab-separated-values, 312 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    (Table S2) Relative abundance of planktic foraminifera species in the 63-150 micron size fraction at SY section of Hor-Hahar
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Counting 63-150 µm fraction; DEPTH, sediment/rock; Foraminifera, planktic; Foraminifera, planktic indeterminata; Globigerinelloides aspera; Globigerinelloides subcarinatus; Globotruncana aegyptiaca; Globotruncana arca; Globotruncanella havanensis; Globotruncanella minuta; Globotruncanella petaloidea; Guembelitria cretacea; Guembelitria trifolia; Hedbergella spp.; Heterohelix carinata; Heterohelix globulosa; Heterohelix labellosa; Heterohelix planata; Hor-Hahar; Israel; Laeviheterohelix glabrans; OUTCROP; Outcrop sample; Paraspiroplecta navarroensis; Pseudoguembelina costellifera; Pseudoguembelina costulata; Pseudoguembelina hariaensis; Pseudoguembelina kempensis; Pseudoguembelina palpebra; Pseudotextularia elegans; Pseudotextularia nuttalli; Rugoglobigerina rugosa; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 1863 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    (Table S4) Relative abundance of planktic foraminifera species in the 63-150 micron size fraction at SYC section of Hor-Hahar
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Counting 63-150 µm fraction; DEPTH, sediment/rock; Foraminifera, planktic; Foraminifera, planktic indeterminata; Globigerinelloides aspera; Globigerinelloides subcarinatus; Globotruncana aegyptiaca; Globotruncanella havanensis; Globotruncanella minuta; Globotruncanella petaloidea; Guembelitria cretacea; Guembelitria trifolia; Hedbergella spp.; Heterohelix globulosa; Heterohelix labellosa; Heterohelix planata; Heterohelix punctulata; Hor-Hahar; Israel; Laeviheterohelix glabrans; OUTCROP; Outcrop sample; Paraspiroplecta navarroensis; Pseudoguembelina costellifera; Pseudoguembelina costulata; Pseudoguembelina hariaensis; Pseudoguembelina kempensis; Pseudotextularia deformis; Pseudotextularia elegans; Rugoglobigerina rugosa; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 1100 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    (Table S3) Relative abundance of planktic foraminifera species in the 〉150 micron size fraction at SYC section of Hor-Hahar
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Abathomphalus mayaroensis; Counting 〉150 µm fraction; DEPTH, sediment/rock; Foraminifera, planktic; Gansserina gansseri; Globigerinelloides aspera; Globigerinelloides multispinatus; Globigerinelloides subcarinatus; Globigerinelloides volutus; Globotruncana aegyptiaca; Globotruncana arca; Globotruncana dupeublei; Globotruncana esnehensis; Globotruncana orientalis; Globotruncana rosetta; Globotruncanella havanensis; Globotruncanella petaloidea; Globotruncanita stuarti; Globotruncanita stuartiformis; Heterohelix globulosa; Heterohelix labellosa; Heterohelix planata; Heterohelix punctulata; Hor-Hahar; Israel; Laeviheterohelix glabrans; OUTCROP; Outcrop sample; Planoglobulina carseyae; Pseudoguembelina costulata; Pseudoguembelina hariaensis; Pseudoguembelina kempensis; Pseudoguembelina palpebra; Pseudotextularia deformis; Pseudotextularia elegans; Pseudotextularia intermedia; Rugoglobigerina hexacamerata; Rugoglobigerina macrocephala; Rugoglobigerina reicheli; Rugoglobigerina rugosa; Sample code/label; Trinitella scotti
    Type: Dataset
    Format: text/tab-separated-values, 1980 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 9
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    (Table S1) Relative abundance of planktic foraminifera species in the 〉150 micron size fraction at SY section of Hor-Hahar
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Abathomphalus mayaroensis; Counting 〉150 µm fraction; DEPTH, sediment/rock; Foraminifera, planktic; Gansserina gansseri; Gansserina wiedenmayeri; Globigerinelloides aspera; Globigerinelloides multispinatus; Globigerinelloides prairiehillensis; Globigerinelloides subcarinatus; Globigerinelloides volutus; Globotruncana aegyptiaca; Globotruncana arca; Globotruncana esnehensis; Globotruncana falsostuarti; Globotruncana orientalis; Globotruncana rosetta; Globotruncanella citae; Globotruncanella havanensis; Globotruncanella minuta; Globotruncanella petaloidea; Globotruncanita angulata; Globotruncanita insignis; Globotruncanita stuarti; Globotruncanita stuartiformis; Gublerina acuta; Heterohelix globulosa; Heterohelix labellosa; Hor-Hahar; Israel; Laeviheterohelix glabrans; OUTCROP; Outcrop sample; Planoglobulina acervulinoides; Planoglobulina brazoensis; Planoglobulina carseyae; Plummerita hantkeninoides; Pseudoguembelina costellifera; Pseudoguembelina costulata; Pseudoguembelina hariaensis; Pseudoguembelina kempensis; Pseudoguembelina palpebra; Pseudotextularia elegans; Pseudotextularia intermedia; Pseudotextularia nuttalli; Racemiguembelina intermedia; Rugoglobigerina hexacamerata; Rugoglobigerina macrocephala; Rugoglobigerina reicheli; Rugoglobigerina rotundata; Rugoglobigerina rugosa; Sample code/label; Trinitella scotti
    Type: Dataset
    Format: text/tab-separated-values, 3619 data points
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  • 10
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    (Table A1) Stable isotope ratios and paleotemperature calculation of selected planktonic foraminifera from late Campanian and Maastrichtian sediments of DSDP Hole 74-525A from the Walvis Ridge, South Atlantic
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 74-525A; Abathomphalus mayaroensis, δ13C; Abathomphalus mayaroensis, δ18O; Calculated from stable oxygen isotopes; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Globigerinelloides aff. ultramicrus, δ13C; Globigerinelloides aff. ultramicrus, δ18O; Globigerinelloides aspera, δ13C; Globigerinelloides aspera, δ18O; Globotruncana aegyptiaca, δ13C; Globotruncana aegyptiaca, δ18O; Globotruncana arca, δ13C; Globotruncana arca, δ18O; Globotruncana bulloides, δ13C; Globotruncana bulloides, δ18O; Globotruncana falsostuarti, δ13C; Globotruncana falsostuarti, δ18O; Globotruncana linneiana, δ13C; Globotruncana linneiana, δ18O; Globotruncana mariei, δ13C; Globotruncana mariei, δ18O; Globotruncanella havanensis, δ13C; Globotruncanella havanensis, δ18O; Globotruncanita stuarti, δ13C; Globotruncanita stuarti, δ18O; Globotruncanita stuartiformis, δ13C; Globotruncanita stuartiformis, δ18O; Glomar Challenger; Gublerina acuta, δ13C; Gublerina acuta, δ18O; Gublerina cuvillieri, δ13C; Heterohelix globulosa, δ13C; Heterohelix globulosa, δ18O; Heterohelix planata, δ13C; Heterohelix planata, δ18O; Heterohelix rajagopalani, δ13C; Heterohelix rajagopalani, δ18O; Isotope ratio mass spectrometry; Laeviheterohelix glabrans, δ13C; Laeviheterohelix glabrans, δ18O; Leg74; Planoglobulina acervulinoides, δ13C; Planoglobulina acervulinoides, δ18O; Planoglobulina brazoensis, δ13C; Planoglobulina brazoensis, δ18O; Planoglobulina carseyae, δ13C; Planoglobulina carseyae, δ18O; Pseudoguembelina costulata, δ13C; Pseudoguembelina costulata, δ18O; Pseudoguembelina hariaensis, δ13C; Pseudoguembelina hariaensis, δ18O; Pseudoguembelina palpebra, δ13C; Pseudoguembelina palpebra, δ18O; Pseudotextularia deformis, δ13C; Pseudotextularia deformis, δ18O; Pseudotextularia elegans, δ13C; Pseudotextularia elegans, δ18O; Racemiguembelina fructicosa, δ13C; Racemiguembelina fructicosa, δ18O; Racemiguembelina intermedia, δ13C; Racemiguembelina intermedia, δ18O; Racemiguembelina powelli, δ13C; Racemiguembelina powelli, δ18O; Rosita plummerae, δ13C; Rosita plummerae, δ18O; Rosita walfischensis, δ13C; Rosita walfischensis, δ18O; Rugoglobigerina hexacamerata, δ13C; Rugoglobigerina hexacamerata, δ18O; Rugoglobigerina pennyi, δ13C; Rugoglobigerina pennyi, δ18O; Rugoglobigerina rugosa, δ13C; Rugoglobigerina rugosa, δ18O; Sample code/label; South Atlantic/CREST; Temperature, calculated
    Type: Dataset
    Format: text/tab-separated-values, 204 data points
    Location Call Number Limitation Availability
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