RT lecture T1 The role of bio-hydrodynamic interactions in determining the functioning of shallow, benthic ecosystems A1 Morris, Edward P. A1 Peralta González, Gloria A1 Brun Murillo, Fernando Guillermo A1 Bouma, Tjeerd J. A1 Hendriks, Iris E. A1 Benavente González, Javier A1 Lara, Miguel A1 González-Ortiz, Vanesa A1 Van Engeland, Tom A1 Van Duren, Luca A. A1 Pérez Lloréns, José Lucas A2 Biología K1 hydrodynamics K1 seagrass K1 macroalgae K1 uptake K1 biodiversity K1 particle trapping K1 ecosystem engineers K1 RNM-214 AB Epi-benthic organisms play a strong role in controlling pelagic-benthic mass transfer rates by directly modifying concentration gradients (i.e., production, or removal of material) and by indirectly modifying near-bed hydrodynamics. Focusing on these bio-hydrodynamic interactions, we will demonstrate how the physical structure of different assemblages, via their interaction with currents and waves, results in spatio-temporal variation in transfer rates at a range of scales. Examples will be used to highlight the, sometimes complex, interactions between organism/population properties (i.e, height, area, volume, flexibility, density and distribution ) and near-bed hydrodynamics. Innovative approaches for examining transfer rates under natural hydrodynamic conditions will demonstrate how these interactions can determine the transfer (and retention) of nutrients and particles between the water column and benthos, creating intra-specific micro-niches (or zones) with different physiochemical properties (potentially influencing biodiversity). Finally, inter-specific differences in bio-hydrodynamic effects will be discussed in relation to benthic processes (such as the burial of organic matter, i.e, the “blue carbon hypothesis”) and suggestions will be made about the potential consequences of changes in benthic habitat distribution for the functioning of shallow, benthic ecosystems. Oral presentation given at 2011 ocean sciences meeting (ASLO), San Juan, Puerto Rico (13-18-02-2011). YR 2011 FD 2011-05-11T00:00:00Z LK http://hdl.handle.net/10498/11109 UL http://hdl.handle.net/10498/11109 LA eng NO This research was supported by the regional government of Andalusia project FUNDIV (P07-RNM-2516) and PAMBIO (P08-RNM-03783), the Spanish Project iMACHYDRO (CTM2008-00012/MAR), a European Reintegration Grant (MERG-CT-2007-205675), a travel grant from Schure-Beijerinck-Popping Fund (SBP/JK/2007-32) and the Netherlands Organization for Scientific Research. DS Repositorio Institucional de la Universidad de Cádiz RD 08-nov-2026