A compilation of the stable isotopic compositions of carbon, nitrogen, and sulfur in soft body parts of animals collected from deep-sea hydrothermal vent and methane seep fields

Variations in energy source and importance of subsurface microbial processes in the sediment-hosted systems

Toshiro Yamanaka, Sho Shimamura, Hiromi Nagashio, Shosei Yamagami, Yuji Onishi, Ayumi Hyodo, Mami Mampuku, Chitoshi Mizota

Research output: Chapter in Book/Report/Conference proceedingChapter

10 Citations (Scopus)

Abstract

The stable isotopic signatures of biophilic elements, such as carbon, nitrogen, and sulfur, exhibited in animal soft body parts are excellent indicators for evaluating the pathways of energy and food sources. Thioautotrophic and methanotrophic nutrition prevailed in deep-sea hydrothermal vent and methane seep areas results in sulfide-sulfur and methanecarbon isotopic ratios. In this study, we reevaluated the carbon, nitrogen, and sulfur isotope compositions of animals taken from deep-sea hydrothermal vents and methane seep areas in order to understand the detailed pathways of energy and food sources for the habitants. The results showed that most animals collected from sediment-starved hydrothermal areas rely on thioautotrophic nutrition, using hydrogen sulfide dissolved in venting fluids as the sole primary energy source. On the other hand, animals from sediment-covered hydrothermal vent and cold seep fields show some variations in energy sources, of both hydrothermal and microbial origins. Sediment-covered areas tend to be enriched in biomass and diversity relative to sediment-starved areas. The results suggest that fluid discharged through sediments to the seafloor are strongly affected by subsurface microbial processes and result in increased biomass and diversity of the seafloor animal community.

Original languageEnglish
Title of host publicationSubseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept
PublisherSpringer Japan
Pages105-129
Number of pages25
ISBN (Print)9784431548652, 9784431548645
DOIs
Publication statusPublished - Jan 1 2015

Fingerprint

hydrothermal vent
deep sea
isotopic composition
methane
sulfur
animal
nitrogen
carbon
sediment
nutrition
seafloor
cold seep
animal community
food
fluid
venting
sulfur isotope
biomass
nitrogen isotope
hydrogen sulfide

Keywords

  • Chemosynthesis-based animals
  • Food ecology
  • Hydrothermal vent community
  • Methane seep community
  • Stable isotopes

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

A compilation of the stable isotopic compositions of carbon, nitrogen, and sulfur in soft body parts of animals collected from deep-sea hydrothermal vent and methane seep fields : Variations in energy source and importance of subsurface microbial processes in the sediment-hosted systems. / Yamanaka, Toshiro; Shimamura, Sho; Nagashio, Hiromi; Yamagami, Shosei; Onishi, Yuji; Hyodo, Ayumi; Mampuku, Mami; Mizota, Chitoshi.

Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept. Springer Japan, 2015. p. 105-129.

Research output: Chapter in Book/Report/Conference proceedingChapter

Yamanaka, Toshiro ; Shimamura, Sho ; Nagashio, Hiromi ; Yamagami, Shosei ; Onishi, Yuji ; Hyodo, Ayumi ; Mampuku, Mami ; Mizota, Chitoshi. / A compilation of the stable isotopic compositions of carbon, nitrogen, and sulfur in soft body parts of animals collected from deep-sea hydrothermal vent and methane seep fields : Variations in energy source and importance of subsurface microbial processes in the sediment-hosted systems. Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept. Springer Japan, 2015. pp. 105-129
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