Meiofaunal communities in hydrothermal vent and proximate non-vent habitats around neighboring seamounts on the Izu-Ogasawara Arc, western North Pacific Ocean

Uejima, Yuki; Nomaki, Hidetaka; Senokuchi, Reina; Setoguchi, Yuka; Kitahashi, Tomo; Watanabe, Hiromi; Shimanaga, Motohiro

doi:10.1007/s00227-017-3218-6

Cited by 12 publications

(14 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The community of Myojin Knoll has received considerable study, especially for metazoan macro-and megafauna (Sasaki et al, 2010;Yorisue et al, 2016;Koito et al, 2018;Watanabe et al, 2019). Metazoan meiofauna from vent chimney walls have also received dedicated study at Myojin Knoll (Uejima et al, 2017;Senokuchi et al, 2018;Uyeno et al, 2018). Additionally, the metazoan meiofauna have been documented from the sediments at the base of Myojin Knoll chimneys and nearby habitats (Setoguchi et al, 2014;Uejima et al, 2017), at ≥2-cm depth resolution.…”

Section: Study Sitementioning

confidence: 99%

“…Metazoan meiofauna from vent chimney walls have also received dedicated study at Myojin Knoll (Uejima et al, 2017;Senokuchi et al, 2018;Uyeno et al, 2018). Additionally, the metazoan meiofauna have been documented from the sediments at the base of Myojin Knoll chimneys and nearby habitats (Setoguchi et al, 2014;Uejima et al, 2017), at ≥2-cm depth resolution.…”

Section: Study Sitementioning

confidence: 99%

“…Far fewer studies have focused on the smaller organisms associated with hydrothermal vents. Metazoan meiofauna such as nematodes, copepods, and ostracods have been found in vent habitats, sometimes in considerable abundance (Uejima et al, 2017). While some evidence suggest that certain nematodes are endemic to hydrothermal vents due to their higher abundance around higher temperature and association with chemosynthetic microorganisms (Zeppilli et al, 2019), other investigations have found little evidence for endemicity in the nematode vent community (Vanreusel et al, 1997;Zekely et al, 2006a;Zeppilli et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Typically, these areas have very thin (several to 10s cm thick) sedimentary cover, making them a challenge to sample quantitatively. A recent study showed that abundances of metazoan meiofauna living in such sediments at the base of hydrothermal vent chimneys can be more abundant than those inhabiting nearby non-vent sediments (Uejima et al, 2017). Nomaki et al (2019) reported a considerable abundance of a single agglutinated foraminiferal species, Pelosina sp., on the surface of chimney-base sediments at a site south of Japan.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Hydrothermal vent chimney-base sediments as unique habitat for meiobenthos and nanobenthos: Observations on millimeter-scale distributions

Bernhard

Nomaki²,

Shiratori³

et al. 2023

Front. Mar. Sci.

Self Cite

View full text Add to dashboard Cite

Hydrothermal vents are critical to marine geochemical cycling and ecosystem functioning. Although hydrothermal vent-associated megafauna and chemoautotrophic prokaryotes have received extensive dedicated study, smaller hydrothermal vent-associated eukaryotes such as meiofauna and nanobiota have received much less attention. These communities comprise critical links in trophic flow and carbon cycling of other marine habitats, so study of their occurrence and role in hydrothermal vent ecosystems is warranted. Further, an understudied vent habitat is the thin sediment cover at the base of hydrothermal vent chimneys. An initial study revealed that sediments at the base of vent chimneys of the Izu-Ogawasara Arc system (western North Pacific) support metazoan meiofauna, but very little is known about the taxonomic composition and abundance of the meiobenthic protists and nanobiota, or their millimeter-scale distributions. Using the Fluorescently Labeled Embedded Coring method (FLEC), we describe results on meiofaunal and nanobiota higher-level identifications, life positions and relative abundances within sediments from three habitats (base of vent chimneys, inside caldera but away from chimneys, and outside caldera) of the Myojin-Knoll caldera and vicinity. Results suggest that the chimney-base community is unique and more abundant compared to non-chimney associated eukaryotic communities. Supporting evidence (molecular phylogeny, scanning and transmission electron microscopy imaging) documents first known hydrothermal-vent-associated occurrences for two protist taxa. Collectively, results provide valuable insights into a cryptic component of the hydrothermal vent ecosystem.

show abstract

Section: Study Sitementioning

confidence: 99%

Section: Study Sitementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hydrothermal vent chimney-base sediments as unique habitat for meiobenthos and nanobenthos: Observations on millimeter-scale distributions

Bernhard

Nomaki²,

Shiratori³

et al. 2023

Front. Mar. Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Recently, we investigated spatial variations in meiofaunal composition on active chimney structures in the calderas of three neighbouring sea knolls (Bayonnaise Knoll, Myojin Knoll and Myojin-sho Caldera) on the Izu-Ogasawara Arc, north-western Pacific Ocean (Figure 1). These studies revealed that the meiofaunal communities on the surfaces of active vent chimneys were dominated by benthic copepods, whereas nematodes were the most abundant taxa in the sediments located around chimney bases (Setoguchi et al, 2014;Uejima et al, 2017). Furthermore, spatial differences in order-level copepod taxonomic composition on venting chimney surfaces were significantly correlated with differences in the availability of vent chemoautotrophic carbon.…”

Section: Introductionmentioning

confidence: 95%

Simple harpacticoid composition observed at deep hydrothermal vent sites on sea knoll calderas in the North-west Pacific

et al. 2021

Self Cite

View full text Add to dashboard Cite

Dirivultid copepods (Siphonostomatoida), one of the most successful meiobenthic organisms found at deep-sea hydrothermal vents, have been the focus of most previous ecological studies among meiofauna in these habitats. The ecology of Harpacticoida, a major benthic copepod group in typical deep-sea floor, however, is not well understood in terms of variations in community structure and controlling factors at venting sites. The spatial heterogeneities in benthic harpacticoid composition and their association with environmental parameters were investigated at hydrothermal vent chimney structures in the calderas of three neighbouring sea knolls (Bayonnaise Knoll, Myojin Knoll and Myojin-sho Caldera) in the western North Pacific. While a previous study had reported the distribution of dirivultids was strongly associated with spatial differences in stable carbon isotopic signatures (δ13C) of organic matter in the detritus on active chimneys in the field, multivariate analyses detected no significant corelation between the parameter and harpacticoid composition in this study. Instead, high associations of the harpacticoid composition with differences in water depth and total organic carbon (TOC) concentration were detected. Ectinosomatidae dominated at vent sites with lower TOC values in the shallowest Bayonnaise Knoll, while they were less prevalent at deeper vent fields in the other knolls, where Miraciidae was the most abundant family. This study indicated the availability of vent chemoautotrophic carbon is not a primary factor controlling the composition of harpacticoids even in the habitats on the hydrothermal vents, but instead by the food amount, regardless of its resources (including marine snow from the sea surface), in the study area.

show abstract

Sex ratio of Stygiopontius senokuchiae (Dirivultidae, Copepoda), an endemic copepod species at deep hydrothermal vent sites, is biased to males

et al. 2020

View full text Add to dashboard Cite

Meiofaunal communities in hydrothermal vent and proximate non-vent habitats around neighboring seamounts on the Izu-Ogasawara Arc, western North Pacific Ocean

Cited by 12 publications

References 28 publications

Hydrothermal vent chimney-base sediments as unique habitat for meiobenthos and nanobenthos: Observations on millimeter-scale distributions

Hydrothermal vent chimney-base sediments as unique habitat for meiobenthos and nanobenthos: Observations on millimeter-scale distributions

Simple harpacticoid composition observed at deep hydrothermal vent sites on sea knoll calderas in the North-west Pacific

Sex ratio of Stygiopontius senokuchiae (Dirivultidae, Copepoda), an endemic copepod species at deep hydrothermal vent sites, is biased to males

Contact Info

Product

Resources

About