Full Text Journal Articles by
Author Konrad Hughen

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Significance of Perylene for Source Allocation of Terrigenous Organic Matter in Aquatic Sediments.

Ulrich M Hanke, Ana L Lima-Braun, Timothy I Eglinton, Jeffrey P Donnelly, Valier Galy, Pascale Poussart, Konrad Hughen, Ann P McNichol, Li Xu, Christopher M Reddy,

Perylene is a frequently abundant, and sometimes the only polycyclic aromatic hydrocarbon (PAH) in aquatic sediments, but its origin has been subject of a longstanding debate in geochemical research and pollutant forensics because its historical record differs markedly from typical anthropogenic PAHs. Here we investigate whether perylene serves as a ... Read more >>

Environ Sci Technol (Environmental science & technology)
[2019, 53(14):8244-8251]

Cited: 0 times

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Response to Comment on "Abrupt warming events drove Late Pleistocene Holarctic megafaunal turnover".

Alan Cooper, Chris Turney, Konrad Hughen,

Rasmussen and Svensson correctly point out that there is currently no satisfactory method to fully align the Greenland and Cariaco Basin records of climate change. However, our approach using interstadial onsets as tie-points allows direct comparison between radiocarbon dates and Greenland climate records. Crucially, both the standard Greenland and the ... Read more >>

Science (Science (New York, N.Y.))
[2016, 351(6276):927]

Cited: 0 times

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PALEOECOLOGY. Abrupt warming events drove Late Pleistocene Holarctic megafaunal turnover.

Alan Cooper, Chris Turney, Konrad A Hughen, Barry W Brook, H Gregory McDonald, Corey J A Bradshaw,

The mechanisms of Late Pleistocene megafauna extinctions remain fiercely contested, with human impact or climate change cited as principal drivers. We compared ancient DNA and radiocarbon data from 31 detailed time series of regional megafaunal extinctions and replacements over the past 56,000 years with standard and new combined records of ... Read more >>

Science (Science (New York, N.Y.))
[2015, 349(6248):602-606]

Cited: 56 times

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Genetically divergent Symbiodinium sp. display distinct molecular responses to pathogenic Vibrio and thermal stress.

Briana Hauff, James M Cervino, Joshua A Haslun, Nancy Krucher, Andrew M Wier, Alexandra L Mannix, Konrad Hughen, Kevin B Strychar,

Global climate change and anthropogenic activities are threatening the future survival of coral reef ecosystems. The ability of reef-building zooxanthellate coral to survive these stressors may be determined through fundamental differences within their symbiotic dinoflagellates (Symbiodinium sp.). We define the in vitro apoptotic response of 2 evolutionarily distant Symbiodinium sp., ... Read more >>

Dis Aquat Organ (Diseases of aquatic organisms)
[2014, 112(2):149-159]

Cited: 1 time

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The Microbiome of the Red Sea Coral Stylophora pistillata Is Dominated by Tissue-Associated Endozoicomonas Bacteria

Till Bayer, Matthew J. Neave, Areej Alsheikh-Hussain, Manuel Aranda, Lauren K. Yum, Tracy Mincer, Konrad Hughen, Amy Apprill, Christian R. Voolstra,

Appl Environ Microbiol (Applied and environmental microbiology)
[2014, 80(1):427-427]

Cited: 0 times

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The microbiome of the Red Sea coral Stylophora pistillata is dominated by tissue-associated Endozoicomonas bacteria.

Till Bayer, Matthew J Neave, Areej Alsheikh-Hussain, Manuel Aranda, Lauren K Yum, Tracy Mincer, Konrad Hughen, Amy Apprill, Christian R Voolstra,

Endozoicomonas bacteria were found highly associated with the coral Stylophora pistillata, and these bacteria are also ubiquitously associated with diverse corals worldwide. Novel Endozoicomonas-specific probes revealed that Endozoicomonas bacteria were abundant in the endodermal tissues of S. pistillata and appear to have an intimate relationship with the coral. ... Read more >>

Appl Environ Microbiol (Applied and environmental microbiology)
[2013, 79(15):4759-4762]

Cited: 99 times

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Major similarities in the bacterial communities associated with lesioned and healthy Fungiidae corals.

Amy Apprill, Konrad Hughen, Tracy Mincer,

Cultivation-based studies have demonstrated that yellow-band disease (YBD), a lesion-producing ailment affecting diverse species of coral, is caused by a consortium of Vibrio spp. This study takes the first cultivation-independent approach to examine the whole bacterial community associated with YBD-like lesioned corals. Two species of Fungiidae corals, Ctenactis crassa and ... Read more >>

Environ Microbiol (Environmental microbiology)
[2013, 15(7):2063-2072]

Cited: 31 times

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Ulcerated yellow spot syndrome: implications of aquaculture-related pathogens associated with soft coral Sarcophyton ehrenbergi tissue lesions.

James M Cervino, Briana Hauff, Joshua A Haslun, Kathryn Winiarski-Cervino, Michael Cavazos, Pamela Lawther, Andrew M Wier, Konrad Hughen, Kevin B Strychar,

We introduce a new marine syndrome called ulcerated yellow spot, affecting the soft coral Sarcophyton ehrenbergi. To identify bacteria associated with tissue lesions, tissue and mucus samples were taken during a 2009 Indo-Pacific research expedition near the Wakatobi Island chain, Indonesia. Polymerase chain reaction targeting the 16S rDNA gene indicated ... Read more >>

Dis Aquat Organ (Diseases of aquatic organisms)
[2012, 102(2):137-148]

Cited: 4 times

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Two centuries of limited variability in subtropical North Atlantic thermocline ventilation.

Nathalie F Goodkin, Ellen R M Druffel, Konrad A Hughen, Scott C Doney,

Ventilation and mixing of oceanic gyres is important to ocean-atmosphere heat and gas transfer, and to mid-latitude nutrient supply. The rates of mode water formation are believed to impact climate and carbon exchange between the surface and mid-depth water over decadal periods. Here, a record of (14)C/(12)C (1780-1940), which is ... Read more >>

Nat Commun (Nature communications)
[2012, 3:803]

Cited: 0 times

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Temporal distributions of anthropogenic Al, Zn and Pb in Hong Kong Porites coral during the last two centuries.

Bo-Shian Wang, Nathalie F Goodkin, N Angeline, Adam D Switzer, Chen-Feng You, Konrad Hughen,

A 182-year long record of trace metal concentrations of aluminum, zinc and lead was reconstructed from a massive Porites coral skeleton from southeastern Hong Kong to evaluate the impacts of anthropogenic activity on the marine environment. Zn/Ca and Pb/Ca ratios fluctuate synchronously from the early 19th century to the present, ... Read more >>

Mar Pollut Bull (Marine pollution bulletin)
[2011, 63(5-12):508-515]

Cited: 3 times

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Century-scale records of land-based activities recorded in Mesoamerican coral cores.

Jessica E Carilli, Nancy G Prouty, Konrad A Hughen, Richard D Norris,

The Mesoamerican Reef, the second-largest barrier reef in the world, is located in the western Caribbean Sea off the coasts of Mexico, Belize, Guatemala, and Honduras. Particularly in the south, the surrounding watersheds are steep and the climate is extremely wet. With development and agricultural expansion, the potential for negative ... Read more >>

Mar Pollut Bull (Marine pollution bulletin)
[2009, 58(12):1835-1842]

Cited: 13 times

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Abrupt tropical vegetation response to rapid climate changes.

Konrad A Hughen, Timothy I Eglinton, Li Xu, Matthew Makou,

Identifying leads and lags between high- and low-latitude abrupt climate shifts is needed to understand where and how such events were triggered. Vascular plant biomarkers preserved in Cariaco basin sediments reveal rapid vegetation changes in northern South America during the last deglaciation, 15,000 to 10,000 years ago. Comparing the biomarker ... Read more >>

Science (Science (New York, N.Y.))
[2004, 304(5679):1955-1959]

Cited: 20 times

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Synchroneity of tropical and high-latitude Atlantic temperatures over the last glacial termination.

David W Lea, Dorothy K Pak, Larry C Peterson, Konrad A Hughen,

A high-resolution western tropical Atlantic sea surface temperature (SST) record from the Cariaco Basin on the northern Venezuelan shelf, based on Mg/Ca values in surface-dwelling planktonic foraminifera, reveals that changes in SST over the last glacial termination are synchronous, within +/-30 to +/-90 years, with the Greenland Ice Sheet Project ... Read more >>

Science (Science (New York, N.Y.))
[2003, 301(5638):1361-1364]

Cited: 32 times

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Climate and the collapse of Maya civilization.

Gerald H Haug, Detlef G√ľnther, Larry C Peterson, Daniel M Sigman, Konrad A Hughen, Beat Aeschlimann,

In the anoxic Cariaco Basin of the southern Caribbean, the bulk titanium content of undisturbed sediment reflects variations in riverine input and the hydrological cycle over northern tropical South America. A seasonally resolved record of titanium shows that the collapse of Maya civilization in the Terminal Classic Period occurred during ... Read more >>

Science (Science (New York, N.Y.))
[2003, 299(5613):1731-1735]

Cited: 62 times

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