Penny J Johnes

Environmental Science · Physical Sciences

45h-index9.8kcitations208works0.82yr avg
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Research Topics

Soil and Water Nutrient Dynamics(105), Hydrology and Watershed Management Studies(57), Marine and coastal ecosystems(32), Water Quality and Pollution Assessment(31), Aquatic Ecosystems and Phytoplankton Dynamics(27)

Publications208 total

Legacy of peatland erosion shapes microbial communities during recovery
2025Open Access
Interpretation of river water quality data is strongly controlled by measurement time and frequency
The Science of The Total Environment·2024· 3 citedOpen Access
Exploring dissolved organic matter (DOM) signatures across contrasting UK landscapes using a high-resolution mass spectrometry ‘fingerprinting’ approach.
2024Open Access
Interpretation of River Water Quality Data is Strongly Controlled by Measurement Time and Frequency
SSRN Electronic Journal·2024Open Access
What do macroinvertebrate indices measure? Stressor‐specific stream macroinvertebrate indices can be confounded by other stressors
Freshwater Biology·2023· 23 citedOpen Access
Correction to: Exploring the nature, origins and ecological significance of dissolved organic matter in freshwaters: state of the science and new directions
Biogeochemistry·2023Open Access
Exploring the nature, origins and ecological significance of dissolved organic matter in freshwaters: state of the science and new directions
Biogeochemistry·2023· 6 citedOpen Access
Investigating biotic uptake of riverine organic nitrogen using a compound-specific stable-isotope probing approach.
2023Open Access
Draft Genome Sequences of <i>Synechococcus</i> sp. strains CCAP1479/9, CCAP1479/10, CCAP1479/13, CCY0621, and CCY9618: Five Freshwater <i>Syn/Pro</i> Clade Picocyanobacteria
Journal of Genomics·2023· 5 citedOpen Access
Natural versus anthropogenic phosphorus release to the Upper Greensand aquifer: A case study from the Vale of Pewsey, UK.
2023Open Access
Microbial responses to peatland degradation and restoration
2023Open Access
Geochemical cycling in aquifers contributes to the transport, storage and transfer of anthropogenically-derived phosphorus to surface waters
Frontiers in Environmental Science·2022· 1 citedOpen Access
Determining patterns in the composition of dissolved organic matter in fresh waters according to land use and management
Biogeochemistry·2022· 14 citedOpen Access
What do changing weather and climate shocks and stresses mean for the UK food system?
Environmental Research Letters·2022· 21 citedOpen Access
Tracing carbon and nitrogen microbial assimilation in suspended particles in freshwaters
Biogeochemistry·2022· 9 citedOpen Access
Hydrological restoration of an upland peatland and its consequences for the microbial processing of dissolved organics
2022Open Access
Characterisation of riverine dissolved organic matter using a complementary suite of chromatographic and mass spectrometric methods
Biogeochemistry·2022· 6 citedOpen Access
Sampling, storage and laboratory approaches for dissolved organic matter characterisation in freshwaters: Moving from nutrient fraction to molecular-scale characterisation
The Science of The Total Environment·2022· 13 citedOpen Access
Tracing Carbon and Nitrogen Microbial Assimilation in Suspended Particles in Freshwaters
2021Open Access
Shifting stoichiometry: Long‐term trends in stream‐dissolved organic matter reveal altered C:N ratios due to history of atmospheric acid deposition
Global Change Biology·2021· 47 citedOpen Access
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Frequent Co-authors

Charlotte Lloyd(9), Jim Freer(9), Adrian L. Collins(9), Gilles Billen(6), A. Louise Heathwaite(5), Christopher A. Yates(5), P. M. Haygarth(4), Pirkko Kortelainen(4), J. Iwan Jones(4), Christoph Humborg(3), Adrian Leip(3), Maren Voß(3), C. J. Curtis(3), D. A. Butterfield(3), Francesca L. Brailsford(3), Helen Glanville(3), Miles R. Marshall(3), Davey L. Jones(3), Robert W. Howarth(2), Josette Garnier(2)