Browsing by Author "Hurd, Catriona L."
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Concentration boundary layers around complex assemblages of macroalgae: Implications for the effects of ocean acidification on understory coralline algae
Cornwall, Christopher E.; Hepburn, Christopher D.; Pilditch, Conrad A.; Hurd, Catriona L. (Association for the Sciences of Limnology and Oceanography, 2012)Metabolic processes have the potential to modulate the effects of ocean acidification (OA) in nearshore macroalgal beds. We investigated whether natural mixed assemblages of the articulate coralline macroalga Arthrocardia ... -
Diurnal fluctuations in seawater pH influence the response of a calcifying macroalga to ocean acidification
Cornwall, Christopher E.; Hepburn, Christopher D.; McGraw, Christina M.; Currie, Kim I.; Pilditch, Conrad A.; Hunter, Keith A.; Boyd, Philip W.; Hurd, Catriona L. (Royal Society Publishing, 2013)Coastal ecosystems that are characterized by kelp forests encounter daily pH fluctuations, driven by photosynthesis and respiration, which are larger than pH changes owing to ocean acidification (OA) projected for surface ... -
Effects of a small-bladed macroalgal canopy on benthic boundary layer dynamics: implications for nutrient transport
Kregting, Louise T.; Stevens, Craig L.; Cornelisen, Christopher D.; Pilditch, Conrad A.; Hurd, Catriona L. (INTER Research Science Publ, 2011)Field and laboratory velocity profiles were used to quantify boundary layer dynamics within communities of a small (<0.2 m tall), dense canopy-forming seaweed Adamsiella chauvinii (Rhodophyta) in a soft-sediment habitat ... -
Flow-induced morphological variations affect diffusion boundary-layer thickness of Macrocystis pyrifera (heterokontophyta, laminariales)
Hurd, Catriona L.; Pilditch, Conrad A. (Wiley-Blackwell, 2011)In slow mainstream flows (<4–6 cm • s⁻¹), the transport of dissolved nutrients to seaweed blade surfaces is reduced due to the formation of thicker diffusion boundary layers (DBLs). The blade morphology of Macrocystis ... -
The relative importance of water motion on nitrogen uptake by the subtidal macroalga adamsiella chauvinii (rhodophyta) in winter and summer
Kregting, Louise T.; Hurd, Catriona L.; Pilditch, Conrad A.; Stevens, Craig L. (Wiley, 2008)The influence of seawater velocity (1.5–12 cm • s⁻¹) on inorganic nitrogen (N) uptake by the soft-sediment perennial macroalga Adamsiella chauvinii (Harv.) L. E. Phillips et W. A. Nelson (Rhodophyta) was determined seasonally ...