Search Results - "RUHL, HENRY A."
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Episodic organic carbon fluxes from surface ocean to abyssal depths during long-term monitoring in NE Pacific
Published in Proceedings of the National Academy of Sciences - PNAS (27-11-2018)“…Growing evidence suggests substantial quantities of particulate organic carbon (POC) produced in surface waters reach abyssal depths within days during…”
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MAIA-A machine learning assisted image annotation method for environmental monitoring and exploration
Published in PloS one (16-11-2018)“…Digital imaging has become one of the most important techniques in environmental monitoring and exploration. In the case of the marine environment, mobile…”
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Global reductions in seafloor biomass in response to climate change
Published in Global change biology (01-06-2014)“…Seafloor organisms are vital for healthy marine ecosystems, contributing to elemental cycling, benthic remineralization, and ultimately sequestration of…”
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Abyssal hills – hidden source of increased habitat heterogeneity, benthic megafaunal biomass and diversity in the deep sea
Published in Progress in oceanography (01-09-2015)“…•We used photos to assess abyssal megabenthic communities on hills and the plain.•Megafaunal biomass was significantly greater on the hills than the adjacent…”
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Deep ocean communities impacted by changing climate over 24 y in the abyssal northeast Pacific Ocean
Published in Proceedings of the National Academy of Sciences - PNAS (03-12-2013)“…The deep ocean, covering a vast expanse of the globe, relies almost exclusively on a food supply originating from primary production in surface waters. With…”
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Biotic and human vulnerability to projected changes in ocean biogeochemistry over the 21st century
Published in PLoS biology (01-10-2013)“…Ongoing greenhouse gas emissions can modify climate processes and induce shifts in ocean temperature, pH, oxygen concentration, and productivity, which in turn…”
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Major impacts of climate change on deep-sea benthic ecosystems
Published in Elementa (Washington, D.C.) (2017)“…The deep sea encompasses the largest ecosystems on Earth. Although poorly known, deep seafloor ecosystems provide services that are vitally important to the…”
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Long-term reductions in anthropogenic nutrients link to improvements in Chesapeake Bay habitat
Published in Proceedings of the National Academy of Sciences - PNAS (21-09-2010)“…Great effort continues to focus on ecosystem restoration and reduction of nutrient inputs thought to be responsible, in part, for declines in estuary habitats…”
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Connections between climate, food limitation, and carbon cycling in abyssal sediment communities
Published in Proceedings of the National Academy of Sciences - PNAS (04-11-2008)“…Diverse faunal groups inhabit deep-sea sediments over much of Earth's surface, but our understanding of how interannual-scale climate variation alters sediment…”
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Landscape-scale spatial heterogeneity in phytodetrital cover and megafauna biomass in the abyss links to modest topographic variation
Published in Scientific reports (29-09-2016)“…Sinking particulate organic matter (POM, phytodetritus) is the principal limiting resource for deep-sea life. However, little is known about spatial variation…”
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Free-Drifting Icebergs: Hot Spots of Chemical and Biological Enrichment in the Weddell Sea
Published in Science (American Association for the Advancement of Science) (27-07-2007)“…The proliferation of icebergs from Antarctica over the past decade has raised questions about their potential impact on the surrounding pelagic ecosystem. Two…”
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Shifts in Deep-Sea Community Structure Linked to Climate and Food Supply
Published in Science (American Association for the Advancement of Science) (23-07-2004)“…A major change in the community structure of the dominant epibenthic megafauna was observed at 4100 meters depth in the northeast Pacific and was synchronous…”
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A new method for ecological surveying of the abyss using autonomous underwater vehicle photography
Published in Limnology and oceanography, methods (01-11-2014)“…The extent and speed of marine environmental mapping is increasing quickly with technological advances, particularly with optical imaging from autonomous…”
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Editorial: The discovery of the unknown planet: the ocean
Published in Frontiers in Marine Science (04-07-2023)“…[...]there is great interest to both explore and understand the biogeochemical processes within the ocean. In particular research surrounding the Aegean Sea,…”
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Societal need for improved understanding of climate change, anthropogenic impacts, and geo-hazard warning drive development of ocean observatories in European Seas
Published in Progress in oceanography (01-10-2011)“…Society’s needs for a network of in situ ocean observing systems cross many areas of earth and marine science. Here we review the science themes that benefit…”
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Cost and value of multidisciplinary fixed-point ocean observatories
Published in Marine policy (01-09-2016)“…Sustained ocean observations are crucial to understand both natural processes occurring in the ocean and human influence on the marine ecosystems. The…”
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Feeding preferences of abyssal macrofauna inferred from in situ pulse chase experiments
Published in PloS one (26-11-2013)“…Climatic fluctuations may significantly alter the taxonomic and biochemical composition of phytoplankton blooms and subsequently phytodetritus, the food source…”
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The role of carrion supply in the abundance of deep-water fish off California
Published in PloS one (02-11-2012)“…Few time series of deep-sea systems exist from which the factors affecting abyssal fish populations can be evaluated. Previous analysis showed an increase in…”
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Integrating ocean observations across body‐size classes to deliver benthic invertebrate abundance and distribution information
Published in Limnology and oceanography letters (01-10-2023)“…Invertebrate animals living at the seafloor make up a prominent component of life globally, spanning 10 orders of magnitude in body size over 71% of Earth's…”
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Detecting the Effects of Deep-Seabed Nodule Mining: Simulations Using Megafaunal Data From the Clarion-Clipperton Zone
Published in Frontiers in Marine Science (04-10-2019)“…The International Seabed Authority is in the process of preparing exploitation regulations for deep-seabed mining (DSM). DSM has the potential to disturb the…”
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