Planktonic Subsidies to Surf-Zone and Intertidal Communities

Scaling surf zone turbulence

[1] Turbulence in the surf zone, the shallow region adjacent to the shoreline, has a key role in beach erosion, fertilization, dispersal, and larval settlement of marine invertebrates, and microbial contamination dilution in beach waters. Breakingwave generated (the dominant source) surf zone turbulence is understood poorly. A new surf zone turbulent dissipation rate scaling is derived, that co...

Surfzone hydrodynamics as a key determinant of spatial variation in rocky intertidal communities.

Larvae of intertidal species develop at sea and must return to adult habitats to replenish populations. Similarly, nutrients, detritus and plankton provide important subsidies spurring growth and reproduction of macroalgae and filter-feeding invertebrates that form the foundation of intertidal communities. Together, these factors determine the density and intensity of interactions among communi...

Metabolism of microbial planktonic communities

Autotrophic and heterotrophic metabolism of microbial planktonic communities in an oligotrophic coastal marine ecosystem: seasonal dynamics and episodic events O. Bonilla-Findji, J.-P. Gattuso, M.-D. Pizay, and M. G. Weinbauer INSU-CNRS, Laboratoire d’Océanographie de Villefranche, UMR 7093, B.P. 28, 06234 Villefranche-sur-Mer Cedex, France Université Pierre et Marie-Curie-Paris, Laboratoire d’...

Bioluminescence to reveal structure and interaction of coastal planktonic communities

differentiation between primary and secondary producers. A challenge thus far has been to examine these groups simultaneously with sufficient temporal and spatial resolution for observations to be relevant to the scales of change in coastal oceans. This study takes advantage of general differences in the bioluminescence flash kinetics between planktonic dinoflagellates and zooplankton to measur...

The effect of carbon subsidies on planktonic niche partitioning and recruitment of bacteria to marine biofilms