The Quest to Develop Ecogenomic Sensors: A 25-Year History of the Environmental Sample Processor (ESP) as a Case Study

Scholin, Christopher A.; Mbari,; Birch, James M.; Jensen, Scott; Marin, Roman; Massion, Eugene; Pargett, Douglas; Preston, Christina M.; Roman, Brent; Ussler, William

doi:10.5670/oceanog.2017.427

Cited by 90 publications

(88 citation statements)

References 54 publications

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“…In [31], an AUV demonstrated the ability to perform a Lagrangian-box survey around a drifter. Some AUVs are now equipped with water samplers to take advantage of the vehicle's mobility to collect material while underway [26], [32]- [36].…”

Section: Introductionmentioning

confidence: 99%

Autonomous Tracking and Sampling of the Deep Chlorophyll Maximum Layer in an Open-Ocean Eddy by a Long-Range Autonomous Underwater Vehicle

Zhang

Kieft

Hobson

et al. 2020

IEEE J. Oceanic Eng.

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Phytoplankton communities residing in the open ocean, the largest habitat on Earth, play a key role in global primary production. Through their influence on nutrient supply to the euphotic zone, open-ocean eddies impact the magnitude of primary production and its spatial and temporal distributions. It is important to gain a deeper understanding of the microbial ecology of marine ecosystems under the influence of eddy physics with the aid of advanced technologies. In March and April 2018, we deployed autonomous underwater and surface vehicles in a cyclonic eddy in the North Pacific Subtropical Gyre to investigate the variability of the microbial community in the deep chlorophyll maximum (DCM) layer. One long-range autonomous underwater vehicle (LRAUV) carrying a third-generation Environmental Sample Processor (3G-ESP) autonomously tracked and sampled the DCM layer for four days without surfacing. The sampling LRAUV's vertical position in the DCM layer was maintained by locking onto the isotherm corresponding to the chlorophyll peak. The vehicle ran on tight circles while drifting with the eddy current. This mode of operation enabled a quasi-Lagrangian time series focused on sampling the temporal variation of the DCM population. A companion LRAUV surveyed a cylindrical volume around the sampling LRAUV to monitor Manuscript

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Section: Introductionmentioning

confidence: 99%

Autonomous Tracking and Sampling of the Deep Chlorophyll Maximum Layer in an Open-Ocean Eddy by a Long-Range Autonomous Underwater Vehicle

Zhang

Kieft

Hobson

et al. 2020

IEEE J. Oceanic Eng.

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“…Direct sequencing of eDNA/eRNA has become a cornerstone of future marine research (Scholin et al, 2017), and the next generation of Environmental Sample Processor (ESP) on board mobile robotic platforms (see below) is contributing toward this goal . A promising technology for in situ nucleic acid identification, not yet suited for the marine medium, is offered by nanopore devices (Oxford Nanopore Technologies).…”

Section: Molecular-based Technologiesmentioning

confidence: 99%

Exo-Ocean Exploration with Deep-Sea Sensor and Platform Technologies

et al. 2020

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“…The discipline of chemical physics is well suited to addressing the challenge posed by the remarkable rise in ocean molecular biology, and the newer field deployable instruments that supply increasingly large quantities of genomic data (Scholin et al, ). The chemical basis for the sequence of microbial reactions that commonly occur in the ocean was clearly laid out over 50 years ago (Redfield et al, ) by drawing analogies with the waste water management literature.…”

Section: The Rules Of Microbial Chemical Choicesmentioning

confidence: 99%

The Molecular Basis for Understanding the Impacts of Ocean Warming

Brewer

2019

Reviews of Geophysics

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A grand challenge for ocean chemists in the years ahead lies in the need to tackle the chemical consequences of ocean warming with the same rigor and intensity that has been brought to bear on the physical chemistry of ocean acidification. For over 50 years ocean chemistry has been dominated by the study of pH‐dependent processes, but to address the biogeochemical impacts of ocean warming, we will need to rapidly advance the discipline of ocean chemical physics where temperature is the master variable and the basic unit is the Joule. Just as it would be impossible to understand the ocean CO2 system without awareness of the essential pH‐dependent CO2‐HCO3‐CO3 equilibria, so too is it impossible to describe ocean chemical physics without knowledge of the bimolecular structure of water. Water, and water in sea water, is composed of a complex of dominant hydrogen bonded forms, and the singlet molecular H2O species, in temperature‐controlled equilibrium and the ratio of these forms, can now be precisely determined. The physical properties of sea water are traditionally described by fitting an ad hoc collection of coefficients to experimental data. They are more accurately described as temperature and pressure perturbations of the underlying molecular equilibrium state. Ocean oxygen consumption rates are accurately described as an Arrhenius function, and not as an exponential function of depth as has been the tradition for over 50 years. We do not now have good correlation between ocean models and observed warming and oxygen declines, and full anoxia with the emergence of hydrogen sulfide over large regions of the ocean is possible. The parallel ocean invasions of heat and fossil fuel CO2 must be combined to estimate their full impact.

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The Quest to Develop Ecogenomic Sensors: A 25-Year History of the Environmental Sample Processor (ESP) as a Case Study

Cited by 90 publications

References 54 publications

Autonomous Tracking and Sampling of the Deep Chlorophyll Maximum Layer in an Open-Ocean Eddy by a Long-Range Autonomous Underwater Vehicle

Autonomous Tracking and Sampling of the Deep Chlorophyll Maximum Layer in an Open-Ocean Eddy by a Long-Range Autonomous Underwater Vehicle

Exo-Ocean Exploration with Deep-Sea Sensor and Platform Technologies

The Molecular Basis for Understanding the Impacts of Ocean Warming

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