Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.3/446
Título: The study of bacterioplankton dynamics in the Berlengas Archipelago (West coast of Portugal) by applying the HJ-biplot method
Autor: Mendes, Susana
Fernández-Gómez, M.J.
Galindo-Villardón, M.P.
Morgado, F.
Maranhão, P.
Azeiteiro, Ulisses M.
Bacelar-Nicolau, P.
Palavras-chave: Reserva Natural das Berlengas
Bactérias Heterotróficas Aeróbicas
Bactérias Redutoras de Sulfatos
Bactérias Redutoras de Nitratos
Berlengas Natural Reserve
Aerobic Heterotrophic Bacteria
Sulphate-reducing Bacteria
Nitrate-reducing Bacteria
Data: 2009
Editora: Universidade dos Açores
Citação: "ARQUIPÉLAGO. Ciências Biológicas e Marinhas". ISSN 0873-4704. Nº 26 (2009): 25-35
Relatório da Série N.º: Ciências Biológicas e Marinhas = Life and Marine Sciences;26
Resumo: The relationship between bacterioplankton and environmental forcing in the Berlengas 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.
URI: http://hdl.handle.net/10400.3/446
ISSN: 0873-4704
Aparece nas colecções:ARQ - LMS - Número 26

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