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We explored the use of stable nitrogen (N) isotope analysis to assess trophic position of consumers in two marine ecosystems: the kelp forests of southern California and a coral atoll in the tropical ...
Forests of the giant kelp Macrocystis pyrifera found on coastal rocky reefs lack the large reservoirs for nutrient storage found in many terrestrial environments. Supporting their high year-round grow...
We experimentally investigated the response of phytoplankton and understory macroalgae to canopies of giant kelp, Macrocystis pyrifera, by following changes in their biomass and net primary productio...
The nutrient climate on the inner shelf off southern California changed markedly across the 1976–1977 North Pacific climate regime shift. With respect to giant kelp (Macrocystis pyrifera) canopies of...
The effects of aMacrocystis pyriferaforest on currents and turbulence were investigated in a controlled laboratory setting using a dynamically matched 1/25-scale model. Two kelp configurations with su...
Masticatory pressure caused by chewing with molars was measured using a multiple-point sheet sensor. The sensor system is useful to directly indicate masticatory force and contact area with various su...
Southern California Edison Co. (SCE) is required to build a 300 hectare (150 acre) artificial reef for the purpose of mitigating the impacts of the San Onofre Nuclear Generating Station on nearby ke...
El Niiios are large-scale, climatic anomalies that originate in the tropical Pacific and affect oceanographic and atmospheric conditions globally. Along the west coast of North America, where El Nif...
Photosynthetic Response of Arctic Kelp Forests to Stratospheric Ozone Depletion.
Benthic primary producer abundance and satellite-derived chlorophyll concentrations are strongly negatively correlated along the Oregon and Northern California coast, suggesting an antagonistic inter...
Coastal kelp stands are a unique physical environment having high drag distributed throughout the water column. Temperature records from locations at increasing distances into the kelp show a damping ...
To determine the relative importance of different sources of nitrate to the annual nitrogen needs of the giant kelpMacrocystis pyrifera,we measured ambient nitrate concentrations at a kelp forest for ...
The predominant view of the canopy-forming kelp’s mechanical response to water motion is that they sway passively under waves such that they are only rarely stretched out in flow, which reduces r...
Evolution of kelp morphology in response to local physical factors: the effect of small-scale water flow on nutrient uptake, growth, and speciation in the southern sea palm, Eisenia arborea。
A study of water velocities near subtidal kelp fronds, relative to the motion of the kelp itself, is described. The dynamic model developed by Utter and Denny (1996) is used to develop a quantitative ...

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