Temporal variation of phytoplankton functional morphology in a Colombian Caribbean floodplain system
| Autor: | Ana María Zabala Agudelo, Esnedy Hernández, Diana María Agudelo, Nestor Jaime Aguirre, Fabio de Jesús Vélez |
|---|---|
| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Biota Colombiana, Vol 20, Iss 2 (2019) |
| Druh dokumentu: | article |
| ISSN: | 0124-5376 2539-200X |
| DOI: | 10.21068/c2019.v20n02a01 |
| Popis: | We analyzed temporal variation of morphology-based functional groups of phytoplankton (MBFG) in the Ayapel floodplain system, through the comparison of two previous samplings carried out between 2005 and 2007 and a new one made in 2015. The biovolume (mm3.l-1) and morphological features such as volume, surface area: volume ratio (S/V) and maximum linear dimension (MLD) were performed. Temporal analysis was carried out according to pluvial precipitation levels, and by means of a grouping analysis two previous periods (dry season and transition period) and a new one corresponding to 2015 (msENSO: dry season with ENSO influence) were defined. In the dry and transition seasons, the predominant group was GFBM III with high MLD (108.77 μm) and S/V ratios (1.44 μm), while in msENSO low biovolumes (0.016 mm3.l-1) and the predominance of GFBM V were observed. The comparison of functional morphology between years showed a transition from filamentous forms to flagellated forms of phytoplankton, allowing a better fit to the environmental pressure of the study area. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|