Results 141 to 150 of about 301,465 (293)
Nitrogen excretion and oxygen consumption under severe hypoxia in siluriform fishes from the Amazon
Journal of Fish Biology, EarlyView.Abstract Siluriform fishes collected from the Rio Negro and Rio Solimões proved to be highly resistant to aquatic hypoxia. In all four species analysed in this study, aquatic oxygen consumption significantly decreased from normoxic levels at water PO2 values near 1 kPa. Air‐breathing activity was observed only in Sturisoma sp. (Rio Negro).
Bernd Pelster +2 more
wiley +1 more source
Mundo AmazónicoEn Colombia, particularmente en el departamento del Amazonas, la alta prevalencia de Tuberculosis y Covid-19 ha suscitado gran interés sobre las prácticas y experiencias que las comunidades indígenas desarrollan alrededor de estas dos entidades ...
Santiago Bedoya-Molina +6 more
doaj +1 more source
Towards sustainability: allowance rights for using water resources in Amazonas State of Brazil
Entrepreneurship and Sustainability Issues, 2018 The water use permit is one of the instruments of the National and State Policy of Water Resources in Brazil through which the government authorizes the user to withdraw water or to make hydraulic interferences in water bodies necessary for their ...
Jéssica Muniz +4 more
semanticscholar +1 more source
Journal of Fish Biology, EarlyView.Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Danilo Araujo Soares Pereira +2 more
wiley +1 more source
Female figures in the political relations between Greeks and Barbarians during the Archaic Age
Studia Historica: Historia Antigua, 2013 Study of the importance of some women for the politics relations between Greeks and Barbarians during the Archaic Age, with special reference to the phoceaean colonization (Marseille) and its interpretation in the greek images and topics relating the ...
Manuel SALINAS DE FRÍAS
doaj
“Dieron de comer y todo lo necesario”: la desaparición de las indígenas amazonas
Fronteras de la HistoriaLas reescrituras y versiones de la Historia general y natural de Fernández de Oviedo (entre 1527 y 1548), pero, también, las del corpus colombino, la relación de Michele da Cuneo, el Códice florentino y la crónica de fray Antonio Tello, entre muchos ...
Vanina Teglia
doaj +1 more source
Journal of Fish Biology, EarlyView.Abstract Here, we describe a new species of Peckoltia (Loricariidae; Hypostominae) from the rapids of the Rio Tocantins‐Araguaia basin, previously identified as Peckoltia vittata, using an integrative taxonomy approach. The new species is distinguished from congeners by ventral region presenting diffuse stripes on surface, not presenting spots or ...
Felipe Arian Andrade de Araújo +3 more
wiley +1 more source
Journal of Fish Biology, EarlyView.Abstract This study aimed to investigate how exposure to elevated water temperature and metal concentration jointly affect the physiology of Amazonian fish. Aboard a research vessel in the Amazon, we evaluated the effects of water temperature (river T°C at 31.5°C and a + 4°C increase to 35.5°C) and of 3‐h copper (Cu) exposure (up to 600 μg/L) in ...
Anne Crémazy +6 more
wiley +1 more source
Notícias do Norte: campanha abolicionista em Manaus (1884)
Caminhos da HistóriaO presente artigo propõe uma breve análise das experiências engendradas pelos abolicionistas em Manaus durante o período da abolição no Amazonas, em 1884.
Lusirene Celestino França
doaj +1 more source
Foliar nutrient levels of native tree species from Central Amazonia. 2. Campina
, 1985 Adult leaves of 14 woody species were sampled in the campina at km 62 of the road Manaus - Caracaraí. The lamina were classified as to their size and analysed for N, P, K, Ca, Mg and Na. Comparing the foliar levels of the bioelements to relevant data for
Klinge, H.
core