Morphodynamic Stickiness: the influence of physical and biological cohesion in sedimentary systems

Carbon and sediment fluxes inhibited in the submarine Congo Canyon by landslide-damming (2022)
Journal Article
Pope, E. L., Heijnen, M., Talling, P., Jacinto, R. S., Gaillot, A., Baker, M., Hage, S., Hasenhündl, M., Heerema, C., McGhee, C., Ruffell, S., Simmons, S. M., Cartigny, M., Clare, M., Dennielou, B., Parsons, D. R., Peirce, C., & Urlaub, M. (in press). Carbon and sediment fluxes inhibited in the submarine Congo Canyon by landslide-damming. Nature Geoscience, https://doi.org/10.1038/s41561-022-01017-x

Landslide-dams, which are often transient, can strongly affect the geomorphology, and sediment and geochemical fluxes, within subaerial fluvial systems. The potential occurrence and impact of analogous landslide-dams in submarine canyons has, however... Read More about Carbon and sediment fluxes inhibited in the submarine Congo Canyon by landslide-damming.

First source-to-sink monitoring shows dense head controls sediment flux and runout in turbidity currents (2022)
Journal Article
Pope, E. L., Cartigny, M. J., Clare, M. A., Talling, P. J., Lintern, D. G., Vellinga, A., Hage, S., Açikalin, S., Bailey, L., Chapplow, N., Chen, Y., Eggenhuisen, J. T., Hendry, A., Heerema, C. J., Heijnen, M., Hubbard, S. M., Hunt, J. E., McGhee, C., Parsons, D. R., Simmons, S. M., …Vendettuoli, D. (2022). First source-to-sink monitoring shows dense head controls sediment flux and runout in turbidity currents. Science Advances, 8(20), eabj3220. https://doi.org/10.1126/sciadv.abj3220

Until recently, despite being one of the most important sediment transport phenomena on Earth, few direct measurements of turbidity currents existed. Consequently, their structure and evolution were poorly understood, particularly whether they are de... Read More about First source-to-sink monitoring shows dense head controls sediment flux and runout in turbidity currents.

Becoming nose-blind—Climate change impacts on chemical communication (2022)
Journal Article
Roggatz, C. C., Saha, M., Blanchard, S., Schirrmacher, P., Fink, P., Verheggen, F., & Hardege, J. D. (2022). Becoming nose-blind—Climate change impacts on chemical communication. Global change biology, https://doi.org/10.1111/gcb.16209

Chemical communication via infochemicals plays a pivotal role in ecological interactions, allowing organisms to sense their environment, locate predators, food, habitats, or mates. A growing number of studies suggest that climate change-associated st... Read More about Becoming nose-blind—Climate change impacts on chemical communication.

Modelling Antifouling compounds of Macroalgal Holobionts in Current and Future pH Conditions (2022)
Journal Article
Hardege, J. D., Roggatz, C. C., & Saha, M. (2022). Modelling Antifouling compounds of Macroalgal Holobionts in Current and Future pH Conditions. Journal of Chemical Ecology, https://doi.org/10.1007/s10886-021-01340-4

Marine macroalgae are important ecosystem engineers in marine coastal habitats. Macroalgae can be negatively impacted through excessive colonization by harmful bacteria, fungi, microalgae, and macro-colonisers and thus employ a range of chemical comp... Read More about Modelling Antifouling compounds of Macroalgal Holobionts in Current and Future pH Conditions.

Sand mining far outpaces natural supply in a large alluvial river (2021)
Journal Article
Hackney, C. R., Vasilopoulos, G., Heng, S., Darbari, V., Walker, S., & Parsons, D. R. (2021). Sand mining far outpaces natural supply in a large alluvial river. Earth surface dynamics European Geosciences Union, 9(5), 1323-1334. https://doi.org/10.5194/esurf-9-1323-2021

The world's large rivers are facing reduced sediment loads due to anthropogenic activities such as hydropower development and sediment extraction. Globally, estimates of sand extraction from large river systems are lacking, in part due to the pervasi... Read More about Sand mining far outpaces natural supply in a large alluvial river.

Acidification can directly affect olfaction in marine organisms (2021)
Journal Article
Porteus, C. S., Roggatz, C. C., Velez, Z., Hardege, J. D., & Hubbard, P. C. (2021). Acidification can directly affect olfaction in marine organisms. The journal of experimental biology, 224(14), https://doi.org/10.1242/jeb.237941

In the past decade, many studies have investigated the effects of low pH/high CO2 as a proxy for ocean acidification on olfactory-mediated behaviours of marine organisms. The effects of ocean acidification on the behaviour of fish vary from very larg... Read More about Acidification can directly affect olfaction in marine organisms.

Establishing sustainable sediment budgets is critical for climate-resilient mega-deltas (2021)
Journal Article
Vasilopoulos, G., Quan, Q. L., Parsons, D. R., Darby, S. E., Tri, V. P. D., Hung, N. N., Haigh, I. D., Voepel, H. E., Nicholas, A. P., & Aalto, R. (2021). Establishing sustainable sediment budgets is critical for climate-resilient mega-deltas. Environmental Research Letters, 16(6), Article 064089. https://doi.org/10.1088/1748-9326/ac06fc

Many of the world's major river deltas face a sustainability crisis, as they come under threat of increases in salinity and the extent of tidal zones forced by combinations of sea-level rise, changes in river discharge and channel geometry. The relat... Read More about Establishing sustainable sediment budgets is critical for climate-resilient mega-deltas.

Ocean Acidification Amplifies the Olfactory Response to 2-Phenylethylamine: Altered Cue Reception as a Mechanistic Pathway? (2021)
Journal Article
Hardege, J. D., Schirrmacher, P., Roggatz, C. C., & Benoit, D. M. (in press). Ocean Acidification Amplifies the Olfactory Response to 2-Phenylethylamine: Altered Cue Reception as a Mechanistic Pathway?. Journal of Chemical Ecology, https://doi.org/10.1007/s10886-021-01276-9

With carbon dioxide (CO2) levels rising dramatically, climate change threatens marine environments. Due to increasing CO2 concentrations in the ocean, pH levels are expected to drop by 0.4 units by the end of the century. There is an urgent need to u... Read More about Ocean Acidification Amplifies the Olfactory Response to 2-Phenylethylamine: Altered Cue Reception as a Mechanistic Pathway?.

Knickpoints and crescentic bedform interactions in submarine channels (2021)
Journal Article
Chen, Y., Parsons, D. R., Simmons, S. M., Williams, R., Cartigny, M. J. B., Hughes Clarke, J. E., Stacey, C. D., Hage, S., Talling, P. J., Azpiroz‐Zabala, M., Clare, M. A., Hizzett, J. L., Heijnen, M. S., Hunt, J. E., Lintern, D. G., Sumner, E. J., Vellinga, A. J., & Vendettuoli, D. (2021). Knickpoints and crescentic bedform interactions in submarine channels. Sedimentology, 68(4), 1358-1377. https://doi.org/10.1111/sed.12886

Submarine channels deliver globally important volumes of sediments, nutrients, contaminants and organic carbon into the deep sea. Knickpoints are significant topographic features found within numerous submarine channels, which most likely play an imp... Read More about Knickpoints and crescentic bedform interactions in submarine channels.

Laboratory observations on meltwater meandering rivulets on ice (2021)
Journal Article
Fernández, R., & Parker, G. (in press). Laboratory observations on meltwater meandering rivulets on ice. Earth surface dynamics ESURF ; an interactive open access journal of the European Geosciences Union, 9(2), 253-269. https://doi.org/10.5194/esurf-9-253-2021

We present a set of observations on meltwater meandering rivulets on ice and compare them (qualitatively and quantitatively) to morphologies commonly found in meandering channels in different media. The observations include data from planned centimet... Read More about Laboratory observations on meltwater meandering rivulets on ice.