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Structural peculiarities of epipelagic communities of the Notrh Atlantic in the waters of different productivity estimated from remote sensing


, : Structural peculiarities of epipelagic communities of the Notrh Atlantic in the waters of different productivity estimated from remote sensing. Okeanologiya. Sentyabr'-Oktyabr'; 395: 768-775

The calculated and measured biomass values of small (<3 mm), large (3-30 mm) and total mesoplankton were verified (compared). Two methods were used to estimate these integral parameters of epipelagic communities. Firstly, we used the estimated earlier regression equations, which correlate these parameters with water transparency. Secondly, we compared the measured values of the listed parameters with calculated mean values typical for waters of different productivity estimated from remote sensed maps produced by NASA. We compared the data for 15 stations collected in September-December in the waters of different productivity in the North Atlantic. In the warm regions (to south from 40degree N) the measured and calculated values were close to each other. In the boreal regions in autumn the bulk of mesoplankton descended to deep layers due to seasonal migrations; hence, the agreement between the measured and calculated values was broken. Thus, the correction to season should be included into the actual correlation equations between water transparency and mesoplankton biomass (the integral index of water productivity).

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