Faunal composition of deep-sea hydrothermal vent fields on the Izu–Bonin–Mariana Arc, northwestern Pacific

Watanabe, Hiromi; Shigeno, Shuichi; Fujikura, Katsunori; Matsui, Takaaki; Kato, Shogo; Yamamoto, Hiroyuki

doi:10.1016/j.dsr.2019.05.010

Cited by 20 publications

(23 citation statements)

References 23 publications

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“…First, in a study of the northern Mariana and Izu-Bonin arcs, Watanabe et al . [ 41 ] find that water depth may explain the similarities among the three northern Mariana arc sites (<600 m), whereas nearby NW Eifuku fauna is distinctly different (1600 m). However, we note this latter site is most similar to shallow NW Rota (550 m) at the southern end of the arc, suggesting that depth may not be the single factor.…”

Section: Discussionmentioning

confidence: 99%

“…For the Mariana arc, our data are supplemented for the northern seamounts from Watanabe et al . [ 41 ].…”

Section: Methodsmentioning

confidence: 99%

“…Many of the submarine volcanoes are hydrothermally active with fluids enriched in CO 2 and SO 2 [ 37 – 39 ] and notable variability in both fluid and faunal characteristics among sites [ 40 ]. Faunal diversity along the arc is incompletely documented [ 41 ]. The 1300 km long Mariana back-arc is located in the Mariana Trough where the spreading axis is highly segmented; magmatic influence from the adjacent arc increases from central to southern segments [ 42 ] where hydrothermal fluids reflect input from magmatic volatiles [ 43 ].…”

Section: Introductionmentioning

confidence: 99%

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Beta diversity differs among hydrothermal vent systems: Implications for conservation

Giguère

Tunnicliffe

2021

PLoS ONE

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Deep-sea hydrothermal vent habitats are small, rare and support unique species through chemosynthesis. As this vulnerable ecosystem is increasingly threatened by human activities, management approaches should address biodiversity conservation. Diversity distribution data provide a useful basis for management approaches as patterns of β-diversity (the change in diversity from site to site) can guide conservation decisions. Our question is whether such patterns are similar enough across vent systems to support a conservation strategy that can be deployed regardless of location. We compile macrofaunal species occurrence data for vent systems in three geological settings in the North Pacific: volcanic arc, back-arc and mid-ocean ridge. Recent discoveries in the Mariana region provide the opportunity to characterize diversity at many vent sites. We examine the extent to which diversity distribution patterns differ among the systems by comparing pairwise β-diversity, nestedness and their additive components. A null model approach that tests whether species compositions of each site pair are more or less similar than random provides insight into community assembly processes. We resolve several taxonomic uncertainties and find that the Mariana arc and back-arc share only 8% of species despite their proximity. Species overlap, species replacement and richness differences create different diversity distributions within the three vent systems; the arc system exhibits much greater β-diversity than both the back-arc and mid-ocean ridge systems which, instead, show greater nestedness. The influence of nestedness on β-diversity also increased from the arc to back-arc to ridge. Community assembly processes appear more deterministic in the arc and ridge systems while back-arc site pairs deviate little from the null expectation. These analyses reflect the need for a variety of management strategies that consider the character of diversity distribution to protect hydrothermal vents, especially in the context of mining hydrothermal deposits.

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Section: Discussionmentioning

confidence: 99%

“…For the Mariana arc, our data are supplemented for the northern seamounts from Watanabe et al . [ 41 ].…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Beta diversity differs among hydrothermal vent systems: Implications for conservation

Giguère

Tunnicliffe

2021

PLoS ONE

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“…These deep-sea organisms rely on the energy released from extreme environments to survive and reproduce. To adapt to extreme environments with the characteristics of high pressure, extremely high or low temperatures, limited light, and nutrient scarcity, deep-sea organisms have evolved with high productivity and various special abilities ( Watanabe et al., 2019 ). These adaptive extreme organisms have great merits in terms of special metabolic functions, which are at the forefront of scientific research and have high natural value for industrial production ( Zhang et al., 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Role of deep-sea equipment in promoting the forefront of studies on life in extreme environments

et al. 2021

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Summary The deep-sea environment creates the largest ecosystem in the world with the largest biological community and extensive undiscovered biodiversity. Nevertheless, these ecosystems are far from well known. Deep-sea equipment is an indispensable approach to research life in extreme environments in the deep-sea environment because of the difficulty in obtaining access to these unique habitats. This work reviewed the historical development and the state-of-the-art of deep-sea equipment suitable for researching extreme ecosystems, to clarify the role of this equipment as a promoter for the progress of life in extreme environmental studies. Linkages of the developed deep-sea equipment and the discovered species are analyzed in this study. In addition, Equipment associated with researching the deep-sea ecosystems of hydrothermal vents, cold seeps, whale falls, seamounts, and oceanic trenches are introduced and analyzed in detail. To clarify the thrust and key points of the future promotion of life in extreme environmental studies, prospects and challenges related to observing equipment, samplers, laboratory simulation systems, and submersibles are proposed. Furthermore, a blueprint for the integration of in situ observations, sampling, controllable culture, manned experiments in underwater environments, and laboratory simulations is depicted for future studies.

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“…Therefore, the mining of deep-sea minerals not only needs to improve its safety and efficiency, but also needs to improve its environmental protection. The deep sea has an extremely rich variety of microorganisms, and each organism has its own suitable living temperature [19][20][21] . In order to reduce the damage of mineral mining to the deep-sea environment, we should also consider the temperature changes produced during the mining process.…”

Section: Introductionmentioning

confidence: 99%

Research on coupled thermo-hydro-mechanical dynamic response characteristics of saturated porous deep-sea sediments under vibration of mining vehicle

Wang

Shi

Huang

et al. 2021

Appl. Math. Mech.-Engl. Ed.

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The excessive deformation of deep-sea sediments caused by the vibration of the mining machine will adversely affect the efficiency and safety of mining. Combined with the deep-sea environment, the coupled thermo-hydro-mechanical problem for saturated porous deep-sea sediments subject to the vibration of the mining vehicle is investigated. Based on the Green-Lindsay (G-L) generalized thermoelastic theory and Darcy’s law, the model of thermo-hydro-mechanical dynamic responses for saturated porous deep-sea sediments under the vibration of the mining vehicle is established. We obtain the analytical solutions of non-dimensional vertical displacement, excess pore water pressure, vertical stress, temperature, and change in the volume fraction field with the normal mode analysis method, and depict them graphically. The normal mode analysis method uses the canonical coordinate transformation to solve the equation, which can quickly decouple the equation by ignoring the modal coupling effect on the basis of the canonical mode. The results indicate that the vibration frequency has obvious influence on the vertical displacement, excess pore water pressure, vertical stress, and change in volume fraction field. The loading amplitude has a great effect on the physical quantities in the foundation, and the changes of the physical quantities increase with the increase in loading amplitude.

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Faunal composition of deep-sea hydrothermal vent fields on the Izu–Bonin–Mariana Arc, northwestern Pacific

Cited by 20 publications

References 23 publications

Beta diversity differs among hydrothermal vent systems: Implications for conservation

Beta diversity differs among hydrothermal vent systems: Implications for conservation

Role of deep-sea equipment in promoting the forefront of studies on life in extreme environments

Research on coupled thermo-hydro-mechanical dynamic response characteristics of saturated porous deep-sea sediments under vibration of mining vehicle

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