Larval Dispersal: Vent Life in the Water Column

Adams, Diane K.; Arellano, Shawn M.; Govenar, Breea

doi:10.5670/oceanog.2012.24

Cited by 63 publications

(61 citation statements)

References 24 publications

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“…To the best of our knowledge, quantitative information for ontogenetic vertical migration of vent animals is very scarce (36) and is not available relative to larval developmental stages. We tested cases with dispersal depths of 100-1,500 m below the sea surface.…”

Section: Resultsmentioning

confidence: 99%

“…Information about biological traits (e.g., larval development, ontogenetic vertical migration, and settling behaviors) is essential to accurately predict larval dispersal range (distance), combined with knowledge of ocean circulation processes above vent fields. Although life histories and demographic structures for most vent animals are largely unknown, recent advances in larval culturing and in situ time-series observations have provided useful insights into larval dispersal processes (36). Species-specific dispersal predictions should be able to made, given quantitative biological information.…”

Section: Resultsmentioning

confidence: 99%

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Quantifying dispersal from hydrothermal vent fields in the western Pacific Ocean

Mitarai

Watanabe

Nakajima

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

104

150

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Hydrothermal vent fields in the western Pacific Ocean are mostly distributed along spreading centers in submarine basins behind convergent plate boundaries. Larval dispersal resulting from deep-ocean circulations is one of the major factors influencing gene flow, diversity, and distributions of vent animals. By combining a biophysical model and deep-profiling float experiments, we quantify potential larval dispersal of vent species via ocean circulation in the western Pacific Ocean. We demonstrate that vent fields within back-arc basins could be well connected without particular directionality, whereas basin-to-basin dispersal is expected to occur infrequently, once in tens to hundreds of thousands of years, with clear dispersal barriers and directionality associated with ocean currents. The southwest Pacific vent complex, spanning more than 4,000 km, may be connected by the South Equatorial Current for species with a longer-than-average larval development time. Depending on larval dispersal depth, a strong western boundary current, the Kuroshio Current, could bridge vent fields from the Okinawa Trough to the Izu-Bonin Arc, which are 1,200 km apart. Outcomes of this study should help marine ecologists estimate gene flow among vent populations and design optimal marine conservation plans to protect one of the most unusual ecosystems on Earth.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Quantifying dispersal from hydrothermal vent fields in the western Pacific Ocean

Mitarai

Watanabe

Nakajima

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

104

150

View full text Add to dashboard Cite

show abstract

“…Since the adults of most species are sessile or of low motility, dispersal occurs mainly through planktonic larvae which, despite showing some behaviors, are mainly transported by currents (Adams et al, 2011(Adams et al, , 2012. Larval retention within a vent field (scale of ∼100 m) can be high and contributes to local larval supply (Metaxas, 2004).…”

Section: Vent Communities As Metacommunitiesmentioning

confidence: 99%

Exploring the Ecology of Deep-Sea Hydrothermal Vents in a Metacommunity Framework

et al. 2018

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Species inhabiting deep-sea hydrothermal vents are strongly influenced by the geological setting, as it provides the chemical-rich fluids supporting the food web, creates the patchwork of seafloor habitat, and generates catastrophic disturbances that can eradicate entire communities. The patches of vent habitat host a network of communities (a metacommunity) connected by dispersal of planktonic larvae. The dynamics of the metacommunity are influenced not only by birth rates, death rates and interactions of populations at the local site, but also by regional influences on dispersal from different sites. The connections to other communities provide a mechanism for dynamics at a local site to affect features of the regional biota. In this paper, we explore the challenges and potential benefits of applying metacommunity theory to vent communities, with a particular focus on effects of disturbance. We synthesize field observations to inform models and identify data gaps that need to be addressed to answer key questions including: (1) what is the influence of the magnitude and rate of disturbance on ecological attributes, such as time to extinction or resilience in a metacommunity; (2) what interactions between local and regional processes control species diversity, and (3) which communities are "hot spots" of key ecological significance. We conclude by assessing our ability to evaluate resilience of vent metacommunities to human disturbance (e.g., deep-sea mining). Although the resilience of a few highly disturbed vent systems in the eastern Pacific has been quantified, these values cannot be generalized to remote locales in the western Pacific or mid Atlantic where disturbance rates are different and information on local controls is missing.

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“…Since direct measurements of larval dispersal are logistically challenging [9], two major techniques are used to quantify migration between populations indirectly: molecular characterization of gene flow and biophysical models based on Lagrangian analyses, i.e., individual particle tracking in space and time [10]. The term ''biophysical'' refers to the combination of ocean current models with the incorporation of biological parameters (e.g., timing of larval release and duration of larval life) to obtain large ensembles of passive drift trajectories that are representative of pelagic larval dispersal.…”

Section: Introductionmentioning

confidence: 99%

Biophysical and Population Genetic Models Predict the Presence of “Phantom” Stepping Stones Connecting Mid-Atlantic Ridge Vent Ecosystems

et al. 2016

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Larval Dispersal: Vent Life in the Water Column

Cited by 63 publications

References 24 publications

Quantifying dispersal from hydrothermal vent fields in the western Pacific Ocean

Quantifying dispersal from hydrothermal vent fields in the western Pacific Ocean

Exploring the Ecology of Deep-Sea Hydrothermal Vents in a Metacommunity Framework

Biophysical and Population Genetic Models Predict the Presence of “Phantom” Stepping Stones Connecting Mid-Atlantic Ridge Vent Ecosystems

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