Topographically Controlled Fronts in the Ocean and Their Biological Influence

  title={Topographically Controlled Fronts in the Ocean and Their Biological Influence},
  author={Eric Wolanski and William M. Hamner},
  pages={177 - 181}
Headlands, islands, and reefs generate complex three-dimensional secondary flows that result in physical and biological fronts. Mixing and diffusion processes near these reefs and headlands are quite different from these processes in the open sea, and classical advection-diffusion models that were developed for the open sea are not valid near shore. Topographically generated fronts affect the distribution of sediments, and they aggregate waterborne eggs, larvae, and plankton. This aggregation… 
Linear oceanographic features: a focus for research on recruitment processes
The early life of reef-associated organisms is generally spent in the plankton. Recent evidence suggests that oceanographic processes have an important influence on the fate of early developmental
Mixing and trapping in Australian tropical coastal waters
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Topographically generated fronts, very nearshore oceanography and the distribution of larval invertebrates and holoplankters
Foam lines oriented parallel to shore are common features of rocky shores. At times, the water coloration is different on either side of the foam lines, suggesting they are associated with fronts. We
Hydrographic features and seabird foraging in Aleutian Passes
The interaction of strong currents with bathymetric features results in zones of vertical advection, mixing, and surface convergences that make island passes attractive foraging regions for seabirds.
Influence of tidally induced fronts and Langmuir circulations on distribution and movements of presettlement fishes around a coral reef
Because of a “halo” of oceanographic features such as tidal fronts, the reef may be a larger target for presettlement fishes than its topography would suggest and some organisms are advected into slicks, while others respond to high concentrations of zooplanktonic food and remain in slicks.
Ocean Currents at Rocas Alijos
The flow of oceanic water over and around an obstacle such as a seamount or island has the potential to profoundly affect the local biological community (Hamner and Hauri, 1986; Wolanski and Hamner,
Physics of coral reef systems in a shallow tidal embayment
Ongoing deforestation in the tropics involves higher river discharges and an increase of runoff, which has consequences to coastal ecosystems. The dispersal of fluvial sediment and freshwater by
Biological and physical interactions on a tropical island coral reef transport and retention processes on Moorea, French Polynesia
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Remote Sensing of Ocean Fronts in Marine Ecology and Fisheries
  • I. Belkin
  • Environmental Science
    Remote. Sens.
  • 2021
A case is made for feature-based approach in marine ecology and fisheries that emphasizes fronts as major structural and circulation features of the ocean realm that play key roles in various aspects of marine ecology.
Estuarine fronts: How important are they?
Estuarine fronts have a role in estuarine circulation, productivity, sediment dynamics, and water quality. Despite their importance, our understanding is rather modest. While some insight can be


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No data are available on surface currents of the central or northern Great Barrier Reef lagoon. Here we describe the fine-scale surface currents for Cid Harbour, Whitsunday Island group, Queensland,
Three-Dimensional Flow in the Upper Ocean
Measurements made from the Research Platform FLIP provide some of the first direct observations of three-dimensional flow within the surface mixed layer of the ocean and some evidence that these motions transport heat and phytoplankton within the mixed layer.
Influence of surface slicks on the distribution and onshore movements of small fish
It is suggested that fish settlement patterns need to be investigated concurrently with measurements of physical mechanisms which may promote aggregation, and onshore movements of small fish (e.g. internal waves).
Flow around islands in Rupert Bay: An investigation of the bottom friction effect
Aerial photographs of transverse shear flows around islands in Rupert Bay, a shallow and turbid estuary in northern Quebec, were studied for the effect of bottom friction. The island wake depends on
Regularly spaced rows of medusae in the Bering Sea: Role of Langmuir circulation1
In summer at night in the Bering Sea hydromedusae and scyphomedusae formed dense aggregations at the surface in convergences apparently produced by Langmuir circulation cells. During strong winds
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Rattray Island, northeast Australia, is 1.5 km long, 300 m wide, and lies in well-mixed water approximately 25 m deep. Its long axis is inclined at about 60° into the direction of the dominant