Ciências da Vida | Artigos em revistas nacionais / Papers in national books
Permanent URI for this collection
Browse
Browsing Ciências da Vida | Artigos em revistas nacionais / Papers in national books by Author "Fernández-Gómez, M. J."
Now showing 1 - 1 of 1
Results Per Page
Sort Options
- The study of bacterioplankton dynamics in the Berlengas Archipelago (West coast of Portugal) by applying the HJ‐biplot methodPublication . Mendes, Susna; Fernández-Gómez, M. J.; Galindo-Villardón, M. P.; Maranhão, P.; Azeiteiro, Ulises; Nicolau, Paula BacelarBerlengas Archipelago (Western Coast of Portugal) were studied between February 2006 and February 2007 in two sampling stations: Berlenga and Canal, using an HJ-biplot. The HJ-biplot showed a simultaneous display of the three main metabolic groups of bacteria involved in carbon cycling (aerobic heterotrophic bacteria, sulphate-reducing bacteria and nitrate-reducing bacteria) and environmental parameters, in low dimensions. Our results indicated that bacterial dynamics are mainly affected by temporal gradients (seasonal gradients with a clear winter versus summer opposition), and less by the spatial structure (Berlenga and Canal). The yearly variation in the abundance of aerobic heterotrophic bacteria were positively correlated with those in chlorophyll a concentration, whereas ammonium concentration and temperature decreased with increasing phosphates and nitrites concentration. The relationship between aerobic heterotrophic bacteria, chlorophyll a and ammonium reveals that phytoplankton is an important source of organic substrates for bacteria.