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Genome‐based taxonomic analysis of the genus Pseudoalteromonas reveals heterotypic synonymsNARA Subscribed
The Pseudoalteromonas genus comprises members that have been demonstrated to play significant ecological roles and produce enzymes, natural products, and activities that are beneficial to the environment and economy. A comprehensive evaluation of the genus revealed that the genomes of several Pseudoalteromonas species are highly similar to each other, exceeding species cutoff values. This evaluation involved determining and co...
Motivation The BioTIME database contains raw data on species identities and abundances in ecological assemblages through time. These data enable users to calculate temporal trends in biodiversity within and amongst assemblages using a broad range of metrics. BioTIME is being developed as a community‐led open‐source database of biodiversity time series. Our goal is to accelerate and facilitate quantitative analysis of temporal...
During the last few decades the fish community has changed substantially along the Eastern Mediterranean continental shelf, which is a hotspot of invasion by species that had migrated via the Suez Canal. Trawl data from the Israeli coast spanning two periods (1990–1994 and 2008–2011) were compared to identify species with substantial variation in their relative abundance between the two periods. The aim of this study was to ex...
Recent decades have seen profound changes in species abundance and community composition. In the marine environment, the major anthropogenic drivers of change comprise exploitation, invasion by nonindigenous species, and climate change. However, the magnitude of these stressors has been widely debated and we lack empirical estimates of their relative importance. In this study, we focused on Eastern Mediterranean, a region expo...
Trait structure reveals the processes underlying fish establishment in the MediterraneanNARA Subscribed
Aim Typically, non‐indigenous species have been studied in relation to either the invaded (recipient) community or the donor community. However, we still lack a broad understanding of the mechanisms underlying the establishment of non‐indigenous species that combines both perspectives. Since the opening of the Suez Canal, hundreds of species have invaded the Mediterranean from the Red Sea, forming a unique system in which the...
The small genome of an abundant coastal ocean methylotrophNARA Subscribed
Summary OM43 is a clade of uncultured β‐proteobacteria that is commonly found in environmental nucleic acid sequences from productive coastal ocean ecosystems, and some freshwater environments, but is rarely detected in ocean gyres. Ecological studies associate OM43 with phytoplankton blooms, and evolutionary relationships indicate that they might be methylotrophs. Here we report on the genome sequence and metabolic properties...
Polyphyletic photosynthetic reaction centre genes in oligotrophic marine GammaproteobacteriaNARA Subscribed
Summary Ecological studies indicate that aerobic anoxygenic phototrophic bacteria (AAP) that use bacteriochlorophyll to support phototrophic electron transport are widely distributed in the oceans. All cultivated marine AAP are alpha‐3 and alpha‐4 Proteobacteria , but metagenomic evidence indicates that uncultured AAP Gammaproteobacteria are important members of ocean surface microbial communities. Here we report the descripti...
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