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The Brazilian coast extends for about 8000 km from Cape Orange (4°N) to Chui (34°S) (Fig. 27.1). This long coastline comprises a variety of ecosystems under the influence of oligotrophic waters transported by two western boundary currents, the Brazil and North Brazil currents (Stramma and England 1999), together with continental influences related to a wide spectrum of river inputs, the largest of...
Application of sidescan sonar at the regional scale of the Abrolhos Bank, with ground-truthing by remotely operated vehicles and mixed-gas diving operations, revealed a much more complex habitat mosaic than previously recognized. The regional benthic habitat map indicates 8844km 2 of reefs (earlier estimates from remote sensing were around 500km 2 ) and 20,904km² of rhodolith habitat—the...
We present a prototype of a PDMS-based microfluidic device for automatic counting of phytoplankton cells in culture solution. The device functioning is based on monitoring changes in the intensity of a cross-channel fiber optical signal during downstream cell transit. The microfluidc chip is fabricated by PDMS soft lithography technique, and the light source and the detection unit are commercial LED...
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