Asynchronous vertical migration and bimodal distribution of motile phytoplankton
نویسندگان
چکیده
منابع مشابه
Asynchronous vertical migration and bimodal distribution of motile phytoplankton
Some motile phytoplankton have the capability to exploit deep sources of nutrients in a vertical migration cycle: photosynthesis in the near-surface layer, transit to depth, uptake of the limiting nutrient and transit back to the surface layer. If all four steps can be completed within 24 h, then migrations can be synchronized to the day/night cycle to maximize photosynthetic efficiency. Altern...
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What determines the vertical distribution of phytoplankton in different aquatic environments remains an open question. To address this question, we develop a model to explore how phytoplankton respond through growth and movement to opposing resource gradients and different mixing conditions. We assume stratification creates a well-mixed surface layer on top of a poorly mixed deep layer and nutr...
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Patchiness plays a fundamental role in phytoplankton ecology by dictating the rate at which individual cells encounter each other and their predators. The distribution of motile phytoplankton species is often considerably more patchy than that of non-motile species at submetre length scales, yet the mechanism generating this patchiness has remained unknown. Here we show that strong patchiness a...
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ژورنال
عنوان ژورنال: Journal of Plankton Research
سال: 2007
ISSN: 0142-7873,1464-3774
DOI: 10.1093/plankt/fbm061