@Article{AffeConRocProNun:2021:PhCoTr,
               author = "Affe, Helen Michelle de Jesus and Concei{\c{c}}{\~a}o, Lorena 
                         Pedreira and Rocha, Diogo Souza Bezerra and Proen{\c{c}}a, Luis 
                         Antonio de Oliveira and Nunes, Jos{\'e} Marcos de Castro",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Estadual de Feira de Santana} and {Instituto 
                         Internacional para Sustentabilidade} and {Instituto Federal de 
                         Santa Catarina} and {Universidade Estadual de Feira de Santana}",
                title = "Phytoplankton community in a tropical estuarine gradient after an 
                         exceptional harmful bloom of Akashiwo sanguinea (Dinophyceae) in 
                         the Todos os Santos Bay",
              journal = "Ocean and Coastal Research",
                 year = "2021",
               volume = "69",
                pages = "e21008",
             keywords = "Algal blooms, Brazilian coast, Marine phytoplankton, Paraguacu 
                         river estuary.",
             abstract = "The objective of this study was to evaluate variations in the 
                         composition and abundance of the phytoplankton community after an 
                         exceptional harmful bloom of Akashiwo sanguinea that occurred in 
                         Todos os Santos Bay (BTS) in early March, 2007. Samples were 
                         collected every ten days, between April, 2007 and March, 2008, 
                         from the estuarine gradient of the Paraguacu River to BTS. The 
                         physical and chemical variables were measured in situ using a 
                         multiparameter sensor. Water samples were collected for analysis 
                         of the dissolved inorganic nutrient concentrations and for the 
                         study of composition and abundance of the microphytoplankton. 
                         Overall, 135 taxa were identified, with a higher richness of 
                         diatoms. The total cell density ranged from 2.92 x 10(3) to 1.16 x 
                         10(7) (5.47 x 10(5) +/- 1.69 x 10(6)) cells L-1, with higher 
                         values in the freshwater zone than in the marine area. Five 
                         species showed peaks of abundance throughout the study, forming 
                         small blooms. Four of these blooms occurred in the rainy season, 
                         formed by the species Guinardia striata (April, 2007), 
                         Scrippsiella cf. acuminata (August, 2007), Euglena gracilis 
                         (August, 2007), and Skeletonema cf. costatum (September, 2007), 
                         while a new bloom of the species Akashiwo sanguinea occurred 
                         during the dry season (December, 2007). The environment was 
                         typically oligotrophic, with low spatiotemporal variation in the 
                         concentrations of dissolved nutrients. Even so, we observed 
                         short-term variations in the structure and composition of the 
                         phytoplankton community, demonstrated by rapid bloom events, 
                         followed by an increase in the total abundance of 
                         microphytoplankton, especially during the rainy season. The blooms 
                         did not cause any notable changes in the water column and did not 
                         present any harmful effects on the system.",
                  doi = "10.1590/2675-2824069.20-004hmdja",
                  url = "http://dx.doi.org/10.1590/2675-2824069.20-004hmdja",
                 issn = "2675-2824",
             language = "en",
           targetfile = "affe_phytoplancton.pdf",
        urlaccessdate = "20 maio 2024"
}