Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5764760 | Deep Sea Research Part I: Oceanographic Research Papers | 2017 | 33 Pages |
Abstract
The depth distribution of living specimens of deep-sea benthic ostracods (small crustaceans with calcareous shells that are preserved as microfossils) in sediments is poorly understood, despite the importance of this aspect of basic ostracod biology for paleoecologic and paleoceanographic interpretations. Here, we investigated living benthic ostracod specimens from deep-sea multiple core samples, to reveal their depths distributions within sediment cores. The results showed shallow distribution and low population density of living deep-sea benthic ostracods (which are mostly composed of Podocopa). The living specimens are concentrated in the top 1Â cm of the sediment, hence deep-sea benthic ostracods are either epifauna or shallow infauna. This observation is consistent with the information from shallow-water species. We also confirmed shallow infaunal (0.5-2Â cm) and very shallow infaunal (0-1Â cm) habitats of the deep-sea ostracod genera Krithe and Argilloecia, respectively.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geology
Authors
Anna B. Jöst, Moriaki Yasuhara, Hisayo Okahashi, Alexandra Ostmann, Pedro MartÃnez Arbizu, Saskia Brix,