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Sibert, Elizabeth C; Hull, Pincelli M; Norris, Richard D (2014): Ichthyolith accumulation and age models from DSDP 527, DSDP 596, ODP 886, ODP 1209, and Gubbio [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.834235, Supplement to: Sibert, EC et al. (2014): Resilience of Pacific pelagic fish across the Cretaceous/Palaeogene mass extinction. Nature Geoscience, 7(9), 667-670, https://doi.org/10.1038/ngeo2227

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Abstract:
Open ocean ecosystems experienced profound disruption in biodiversity and structure during the Cretaceous-Paleogene (K-Pg) mass extinction ~66 million years ago. Extinction scenarios have suggested that a collapse of phytoplankton production rippled up the food chain causing wholesale loss of consumers and top predators. Pelagic fishes represent a key trophic link between primary producers and top predators and provide a means to examine the influence of trophic relationships during extinctions. Here we show that there is geographic heterogeneity in the abundance of fishes through the mass extinction using the accumulation rate of ichthyoliths (i.e., microscopic fish teeth and shark dermal scales). In the Tethys Sea, fish abundance falls abruptly at the boundary and remains depressed for at least 3 million years. In contrast, fish abundance in the Pacific Ocean remained at or above pre-boundary levels for at least four million years following the mass extinction, despite drastic extinctions in co-occurring primary producers and zooplankton consumers. Geographic differences in these post-disaster ecosystems suggest that the mass extinction did not produce a uniformly "dead" ocean or microbially dominated system, but instead supported, at least regionally, ecosystems with mid-trophic level abundances similar to or above those of the Late Cretaceous.
Project(s):
Deep Sea Drilling Project (DSDP)
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 18.120643 * Median Longitude: 122.571339 * South-bound Latitude: -28.041500 * West-bound Longitude: 1.763300 * North-bound Latitude: 44.689700 * East-bound Longitude: -165.654500
Date/Time Start: 1980-06-28T00:00:00 * Date/Time End: 2001-09-23T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
13 datasets

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Datasets listed in this publication series

  1. Sibert, EC; Hull, PM; Norris, RD (2014): Age model of DSDP Hole 74-527. https://doi.org/10.1594/PANGAEA.834211
  2. Sibert, EC; Hull, PM; Norris, RD (2014): Ichthyolith counts and MAR at DSDP Hole 74-527. https://doi.org/10.1594/PANGAEA.834223
  3. Sibert, EC; Hull, PM; Norris, RD (2014): Ages and MAR of DSDP Hole 91-596. https://doi.org/10.1594/PANGAEA.834213
  4. Sibert, EC; Hull, PM; Norris, RD (2014): Ichthyolith counts and MAR at DSDP Hole 91-596. https://doi.org/10.1594/PANGAEA.834224
  5. Sibert, EC; Hull, PM; Norris, RD (2014): Age model of ODP Hole 145-886C. https://doi.org/10.1594/PANGAEA.834226
  6. Sibert, EC; Hull, PM; Norris, RD (2014): Ichthyolith counts and MAR at ODP Hole 145-886C. https://doi.org/10.1594/PANGAEA.834225
  7. Sibert, EC; Hull, PM; Norris, RD (2014): Age model of ODP Site 198-1209, part A: Westerhold et al. 2008. https://doi.org/10.1594/PANGAEA.834220
  8. Sibert, EC; Hull, PM; Norris, RD (2014): Age model of ODP Site 198-1209, part B: Hilgen et al. 2010. https://doi.org/10.1594/PANGAEA.834222
  9. Sibert, EC; Hull, PM; Norris, RD (2014): Total weight-based fish debris MAR of ODP Site 198-1209. https://doi.org/10.1594/PANGAEA.834231
  10. Sibert, EC; Hull, PM; Norris, RD (2014): Ichthyoliths and MAR of ODP Hole 198-1209A. https://doi.org/10.1594/PANGAEA.834233
  11. Sibert, EC; Hull, PM; Norris, RD (2014): Replicate weight-based fish debris of ODP Hole 198-1209B. https://doi.org/10.1594/PANGAEA.834234
  12. Sibert, EC; Hull, PM; Norris, RD (2014): Age model of Gubbio outcrop. https://doi.org/10.1594/PANGAEA.834214
  13. Sibert, EC; Hull, PM; Norris, RD (2014): Ichthyolith counts and MAR at Gubbio outcrop. https://doi.org/10.1594/PANGAEA.834230