Thalassiosirales (Diatomeae) da baía de Guaratuba, Estado do Paraná, Brasil

Abstract

LEHMKUHL, E.A., TREMARIN, P.I., MOREIRA-FILHO, H. & LUDWIG, T.A.V. Thalassiosirales (Diatomeae) from Guaratuba bay, Paraná state, Brazil. Biota Neotrop. 10(2): http://www.biotaneotropica.org.br/v10n2/en/ abstract?inventory+bn03310022010.Abstract: A survey of the Thalassiosirales from three different regions of Guaratuba bay resulted in the identification of 28 infrageneric taxa. The samples were collected every three months from April 2007 to January 2008. The taxa were described and illustrated by optical. Some of them were illustrated by scanning electron micrographs. Taxonomic comments were added when relevant. Thalassiosira cedarkeyensis was first recorded to Brazil and two Thalassiosira ferelineata and T. minuscula were new citations to Parana state. Comparing the occurrence of Thalassiosirales representatives from 1961's previous work 23 species were added to the flora. Based on literature informations, only four species were considered from freshwater habitat, Discostella stelligera, Cyclotella meneghiniana, Cyclostephanos invisitatus and Thalassiosira rudis, the others were marine or estuarine.

Study of diatom assemblages in Sundarbans mangrove water based on light microscopy and rbcL gene sequencing

“…References: Hasle and Fryxell, 1977 , P. 26–28, Figs 46–53; Hasle and Syvertsen, 1996 , p. 59; Lehmkuhl et al., 2010 , p. 316, Fig. 6.…”

“…References: Hasle and Fryxell, 1977 , p. 35, Figs 86–93; Torgan and Santos, 2007 , p. 716, Figs 1A–C; Lehmkuhl et al., 2010 , p. 316, Fig. 10; Li et al., 2013 , p. 99, Figs 95–99.…”

Mucilaginous species of Thalassiosira Cleve emend: hasle (Diatomeae) in South Brazilian waters

“…Their small dimensions could explain the absence of previous records, but T. diporocyclus and T. minuscula occur in dense gelatinous colonies, which should make them easy to detect during routine microscope counting or identifi cation. Previous researchers collected material only in shallow waters off Paraná, mainly in estuarine areas, where T. diporocyclus and T. mala were not detected (Fernandes & Brandini 2004, Procopiak et al 2006, Lehmkuhl et al, 2010. On the other hand, lugol preserved samples may destroy the mucilage, and the species would be named or counted as "unidentifi ed centrics" or "Th alassiosira spp.…”

“…Geographic distribution: Brazil (Rio Grande do Sul, Garcia & Odebrecht 2009a; Baía de Guaratuba, Paraná, Lehmkuhl et al 2010); Argentina (Ferrario & Galván 1989); Province of Chubut (Ferrario & Sar 1988); Balneario Las Grutas (Sar 1996); Balnearios Santa Teresita, Mar de Ajó, Nueva Atlantis, Pinamar and Villa Gesel -Buenos Aires (Sar et al 2001); Gulf of San Matías (Sar et al 2002) Takano (1976;1979), Rivera (1981), Hallegraeff (1984), Licea (1992), Hernández-Becerril et al (1995), Aké-Castilho et al (1999), Sar et al (2002), Fryxell & Hasle (2003).…”

Spatial and temporal distribution of aliphatic hydrocarbons and linear alkylbenzenes in the particulate phase from a subtropical estuary (Guaratuba Bay, SW Atlantic) under seasonal population fluctuation

“…The main economic activities throughout the year are agriculture, especially in the drainage basin, and fishery (Lehmkuhl et al, 2010;Pietzsch et al, 2010). During the austral summer, tourism enhances the economic activities in the cities of Guaratuba and Matinhos, located on the southern and northern margins, respectively.…”