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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

A proposal for the equivalence between the rates of net photosynthesis and growth rate constants for submerged aquatic plants

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Author(s):
Yoshida, Luana Lume [1] ; Valletta, Leandro Silveira Andrade [1] ; da Cunha-Santino, Marcela Bianchessi [1, 2] ; Bianchini, Jr., Irineu [1, 2]
Total Authors: 4
Affiliation:
[1] Univ Fed Sao Carlos UFSCar, Dept Hidrobiol, Rodovia Washington Luiz, Km 235, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Fed Sao Carlos, Programa Posgrad Ecol & Recursos Nat, Rodovia Washington Luiz, Km 235, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Hydrobiologia; v. 849, n. 1 OCT 2021.
Web of Science Citations: 0
Abstract

The mathematical prediction of the growth of submerged macrophytes provides direct inference in harvest management, estimation of habitat structuring, and calculation of incidence areas, in function to the main environmental constraints. The aim of this study was to enable us the equivalence between the liquid photosynthetic rates (obtained from the light and dark flasks method) and the growth rates derived from first order models applied to aquatic plants cultures. The association allows the achievement of the values of the growth rates (mu) due to short-term environmental changes, usually well evidenced by the net photosynthetic rates (net primary production; NPP), increasing the accuracy of the growth model. Growth experiments were conducted with two submerged specimens. Using the results of the: (i) carbon content of the plants tissues, (ii) NPP of incubations (light and dark bottles method) and (iii) biomass of cultures growths, it was feasible to verify the range of variation of NPP (coefficient of variation: 62%) and mu values, and establish the calculations for the equivalence of these two parameters. Thus, changes in environmental conditions, including specific and short-term events, can be readily transformed to the mu values, improving the accuracy of the growth simulation of submerged aquatic plants. (AU)

FAPESP's process: 19/19425-8 - Evaluation of the effects of glitter microplastic and textile dye on photosynthesis rates of Egeria densa (submerged aquatic macrophyte)
Grantee:Luana Lume Yoshida
Support Opportunities: Scholarships in Brazil - Scientific Initiation