Buscar
Mostrando ítems 41-50 de 1775
Ocorrência de ectoparasitos monogenéticos em brânquias de Rhamdia branneri Haseman,1911 (Siluriformes: Heptapteridae) de dois riachos do Baixo Iguaçu
(Universidade Tecnológica Federal do ParanáDois VizinhosBrasilLicenciatura em Ciências BiológicasUTFPR, 2015-07-02)
In Brazil, most of the urban sewage and materials from the manholes of the streets are channeled into rivers and streams resulting change on physico-chemical factors of the water and turning the fish susceptible to the ...
Fish assemblage structure in a Neotropical urbanised prairie stream exposed to multiple natural and anthropic factors
(Wiley Blackwell Publishing, Inc, 2021-07)
A myriad of factors affect stream fish assemblages, and most of them are intimately regulated by surrounding land uses. One of the most pernicious impacts on streams is the release of urban effluents. Accordingly, understanding ...
Diet of Astyanax paranae (Characidae) in streams with different riparian land covers in the Passa-Cinco River basin, southeastern Brazil
(FUNDACAO ZOOBOTANICA RIO GRANDE SUL, MUSEU CIENCIAS NATURAISPORTO ALEGRE, 2012)
An analysis of the diet of Astyanax paranae Eigenmann, 1914 in nine streams located in the Passa-Cinco River basin (upper Parana River system) was performed to investigate the feeding habits of this species, check for ...
Diversidade das comunidades de peixes de riachos em função da estrutura da paisagem em microbacias da bacia do rio Corumbataí, SP
(Universidade Estadual Paulista (UNESP), 2014)
FRIENDS NOT FOES: UNRAVELING THE ECOLOGICAL RELATIONSHIPS BETWEEN MICRO AND MACROALGAE IN LOW ORDER TROPICAL STREAMS
(Int Phycological Soc, 2017-08-01)
Ecology and morphological characterization of gametophyte and 'Chantransia' stages of Sirodotia huillensis (Batrachospermales, Rhodophyta) from a stream in central Mexico
(2006-06-01)
The morphology and phenology of Sirodotia huillensis was evaluated seasonally in a central Mexican first-order calcareous stream. Water temperature was constant (24-25°C) and pH circumneutral to alkaline (6.7-7.9), and ...
Ecology and morphological characterization of gametophyte and 'Chantransia' stages of Sirodotia huillensis (Batrachospermales, Rhodophyta) from a stream in central Mexico
(2006-06-01)
The morphology and phenology of Sirodotia huillensis was evaluated seasonally in a central Mexican first-order calcareous stream. Water temperature was constant (24-25°C) and pH circumneutral to alkaline (6.7-7.9), and ...
Tourism impact on stream fish measured with an ecological and a behavioural indicator
(2017-12-01)
As nature-based tourism grows, its impacts on aquatic ecosystems follow, requiring effective management techniques to conserve river integrity. Nevertheless, strong indicators of tourism impacts are scarce and have seldom ...