Andreas F. Haas
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View article: Central carbon metabolism switching in lytic versus temperate coral reef viral communities
Central carbon metabolism switching in lytic versus temperate coral reef viral communities Open
Coral reefs are declining globally due in part to bacterial overgrowth, a process known as microbialization. However, the role of bacteriophages that may inhibit microbialization by infecting and killing these bacteria remains poorly under…
View article: PREPRINT "Comparability of Liquid Chromatography Tandem Mass Spectrometry Analysis of Dissolved Organic Matter Across Laboratories"
PREPRINT "Comparability of Liquid Chromatography Tandem Mass Spectrometry Analysis of Dissolved Organic Matter Across Laboratories" Open
Non-targeted liquid-chromatography tandem high-resolution mass-spectrometry (LC-MS/MS) is increasingly applied for the structure-resolved chemical analysis of dissolved organic matter (DOM). With new developments in mass spectrometry instr…
View article: Unprecedented decline in modern coral reef communities could indicate the onset of the Anthropocene
Unprecedented decline in modern coral reef communities could indicate the onset of the Anthropocene Open
Coral reefs have experienced widespread and accelerated decline, driven by a combination of global and local anthropogenic stressors. To contextualize these changes, we compared the composition of coral reef communities on Curaçao between …
View article: <b>Bacteriophage replication strategies are associated with organic matter energy content on coral reefs</b>
<b>Bacteriophage replication strategies are associated with organic matter energy content on coral reefs</b> Open
Bacteriophages, viruses that infect bacteria, play a crucial role in carbon cycling within marine environments. In coral reefs, dissolved organic matter (DOM) released by benthic primary producers such as algae fuels heterotrophic microbia…
View article: Microbial Community Metabolism of Coral Reef Exometabolomes Broadens the Chemodiversity of Labile Dissolved Organic Matter
Microbial Community Metabolism of Coral Reef Exometabolomes Broadens the Chemodiversity of Labile Dissolved Organic Matter Open
Dissolved organic matter (DOM) comprises diverse compounds with variable bioavailability across aquatic ecosystems. The sources and quantities of DOM can influence microbial growth and community structure with effects on biogeochemical pro…
View article: Seasonal changes in bay water column properties and their influence on the distribution of dissolved and particulate substances along the south coast of Curaçao (Caribbean Sea)
Seasonal changes in bay water column properties and their influence on the distribution of dissolved and particulate substances along the south coast of Curaçao (Caribbean Sea) Open
As endpoints of watersheds, bays concentrate erosion- and human-derived substances such as dissolved inorganic nutrients and pollutants. We investigated the water movement and biogeochemistry of two bays in Curaçao: Piscadera Bay and Spaan…
View article: Evidence of Natural Reproduction of North American Rainbow Trout (<i>Oncorhynchus mykiss</i>) in Three Alpine Rivers in Bavaria, Germany
Evidence of Natural Reproduction of North American Rainbow Trout (<i>Oncorhynchus mykiss</i>) in Three Alpine Rivers in Bavaria, Germany Open
Rainbow trout have been translocated from North America worldwide for more than 150 years, but have not reproduced in the wild in Europe in the last 100 years. In recent decades, several examples of successful reproduction have become publ…
View article: Improving genome-scale metabolic models of incomplete genomes with deep learning
Improving genome-scale metabolic models of incomplete genomes with deep learning Open
View article: Coral high molecular weight carbohydrates support opportunistic microbes in bacterioplankton from an algae-dominated reef
Coral high molecular weight carbohydrates support opportunistic microbes in bacterioplankton from an algae-dominated reef Open
High molecular weight (HMW; >1 kDa) carbohydrates are a major component of dissolved organic matter (DOM) released by benthic primary producers. Despite shifts from coral to algae dominance on many reefs, little is known about the effects …
View article: Publisher Correction: Mucus carbohydrate composition correlates with scleractinian coral phylogeny
Publisher Correction: Mucus carbohydrate composition correlates with scleractinian coral phylogeny Open
View article: Mucus carbohydrate composition correlates with scleractinian coral phylogeny
Mucus carbohydrate composition correlates with scleractinian coral phylogeny Open
The mucus surface layer serves vital functions for scleractinian corals and consists mainly of carbohydrates. Its carbohydrate composition has been suggested to be influenced by environmental conditions (e.g., temperature, nutrients) and m…
View article: Sponges on shifting reefs: holobionts show similar molecular and physiological responses to coral versus macroalgal food
Sponges on shifting reefs: holobionts show similar molecular and physiological responses to coral versus macroalgal food Open
Introduction Many coral reefs witness an ongoing coral-to-algae phase shift. Corals and algae release large quantities of (in)organic nutrients daily, of which a large part is utilized by sponges. In turn, sponges are important cyclers of …
View article: Coral thermal stress and bleaching enrich and restructure reef microbial communities via altered organic matter exudation
Coral thermal stress and bleaching enrich and restructure reef microbial communities via altered organic matter exudation Open
View article: Seasonal Changes in Bay Water Column Properties and Their Influence on the Distribution of Dissolved and Particulate Substances Along the South Coast of Curaçao (Caribbean Sea)
Seasonal Changes in Bay Water Column Properties and Their Influence on the Distribution of Dissolved and Particulate Substances Along the South Coast of Curaçao (Caribbean Sea) Open
View article: Host-specific viral predation network on coral reefs
Host-specific viral predation network on coral reefs Open
Viral infections are major modulators of marine microbial community assembly and biogeochemical cycling. In coral reefs, viral lysis controls bacterial overgrowth that is detrimental to coral health. However, methodological limitations hav…
View article: Coral larval settlement induction using tissue-associated and exuded coralline algae metabolites and the identification of putative chemical cues
Coral larval settlement induction using tissue-associated and exuded coralline algae metabolites and the identification of putative chemical cues Open
Reef-building crustose coralline algae (CCA) are known to facilitate the settlement and metamorphosis of scleractinian coral larvae. In recent decades, CCA coverage has fallen globally and degrading environmental conditions continue to red…
View article: Improving genome-scale metabolic models of incomplete genomes with deep learning
Improving genome-scale metabolic models of incomplete genomes with deep learning Open
Deciphering the metabolism of microbial species is crucial for understanding their function within complex ecosystems. Genome-scale metabolic models (GSMMs), which predict metabolic traits based on the enzymes encoded in a genome, are prom…
View article: Productive viral infections in oligotrophic marine waters
Productive viral infections in oligotrophic marine waters Open
Viral lysis of dominant bacterial groups is accepted as the main mechanism through which viruses impact marine microbial communities. However, the structure of virus-bacteria infection networks and the abundance of their members have yet t…
View article: Viral predation pressure on coral reefs
Viral predation pressure on coral reefs Open
Background Predation pressure and herbivory exert cascading effects on coral reef health and stability. However, the extent of these cascading effects can vary considerably across space and time. This variability is likely a result of the …
View article: Small-scale oxygen distribution patterns in a coral reef
Small-scale oxygen distribution patterns in a coral reef Open
One mechanism giving fleshy algae a competitive advantage over corals during reef degradation is algal-induced and microbially-mediated hypoxia (typically less than 69.5 µmol oxygen L −1 ). During hypoxic conditions oxygen availability bec…
View article: Molecular characterization of coral reef exometabolites
Molecular characterization of coral reef exometabolites Open
Marine DOM constitutes one of the most complex chemical mixtures on earth containing hundreds of thousands of different compounds. In nearshore systems like coral reefs metabolites exuded by primary producers comprise a significant fractio…
View article: Coral Reef Arks: An <em>In Situ</em> Mesocosm and Toolkit for Assembling Reef Communities
Coral Reef Arks: An <em>In Situ</em> Mesocosm and Toolkit for Assembling Reef Communities Open
Coral reefs thrive and provide maximal ecosystem services when they support a multi-level trophic structure and grow in favorable water quality conditions that include high light levels, rapid water flow, and low nutrient levels. Poor wate…
View article: Table S1. CCA significantly enriched exometabolites from Coral larval settlement induction using tissue-associated and exuded coralline algae metabolites and the identification of putative chemical cues
Table S1. CCA significantly enriched exometabolites from Coral larval settlement induction using tissue-associated and exuded coralline algae metabolites and the identification of putative chemical cues Open
Reef building crustose coralline algae (CCA) are known to facilitate the settlement and metamorphosis of scleractinian coral larvae. In recent decades, CCA coverage has fallen globally and degrading environmental conditions continue to red…
View article: Additional file 1 of Viral predation pressure on coral reefs
Additional file 1 of Viral predation pressure on coral reefs Open
Additional file 1. Comma-separated file containing site-level data for the 110 reef sites analyzed in this study. Data includes location (geographic region, island, site name, geographical coordinates), date of sampling, type of reef, dept…
View article: Improving Genome-Scale Metabolic Models of Incomplete Genomes with Deep Learning
Improving Genome-Scale Metabolic Models of Incomplete Genomes with Deep Learning Open
View article: Microbial Interactions with Dissolved Organic Matter Are Central to Coral Reef Ecosystem Function and Resilience
Microbial Interactions with Dissolved Organic Matter Are Central to Coral Reef Ecosystem Function and Resilience Open
To thrive in nutrient-poor waters, coral reefs must retain and recycle materials efficiently. This review centers microbial processes in facilitating the persistence and stability of coral reefs, specifically the role of these processes in…
View article: Distinguishing the molecular diversity, nutrient content, and energetic potential of exometabolomes produced by macroalgae and reef-building corals
Distinguishing the molecular diversity, nutrient content, and energetic potential of exometabolomes produced by macroalgae and reef-building corals Open
Significance Marine dissolved organic matter (DOM) is one of the most complex and abundant chemical mixtures on earth, comprising thousands of different molecules. The molecular structure of these compounds is one factor structuring the co…
View article: Dissolution of a submarine carbonate platform by a submerged lake of acidic seawater
Dissolution of a submarine carbonate platform by a submerged lake of acidic seawater Open
Submarine sinkholes are found on carbonate platforms around the world. They are thought to form and grow when groundwater interactions generate conditions corrosive to carbonate minerals. Because their morphology can restrict mixing and wa…
View article: <i>Brilliantia kiribatiensis</i>, a new genus and species of Cladophorales (Chlorophyta) from the remote coral reefs of the Southern Line Islands, Pacific Ocean
<i>Brilliantia kiribatiensis</i>, a new genus and species of Cladophorales (Chlorophyta) from the remote coral reefs of the Southern Line Islands, Pacific Ocean Open
The marine green alga Brilliantia kiribatiensis gen. et sp. nov. is described from samples collected from the coral reefs of the Southern Line Islands, Republic of Kiribati, Pacific Ocean. Phylogenetic analysis of sequences of the large‐ a…
View article: Comment on bg-2021-244
Comment on bg-2021-244 Open
Abstract. Submarine sinkholes are found on carbonate platforms around the world. They are thought to form and grow when groundwater interactions generate conditions corrosive to carbonate minerals. Because their morphology…