Results 121 to 130 of about 233,486 (264)

Caracterização da Amazônia Legal e macrotendências do ambiente externo. [PDF]

open access: yes, 2012
O Comitê Diretivo da Embrapa Estudos Estratégicos e Capacitação, respondendo à demanda dos Centros de Pesquisa sediados na Amazônia, da Diretoria Executiva e das Unidades Centrais, encomendou ao Núcleo de Estudos Estratégicos a elaboração de um estudo ...
CONTINI, E.   +2 more
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Seleção de descritores para caracterização genética do cupuaçuzeiro, Theobroma grandiflorum (Willd. Ex Spreng.) K. Schum, através de análise multivariada de componentes principais. [PDF]

open access: yes, 2020
Publicado também: FRAZÃO, D. A. C.; HOMMA, A. K. O; VIÉGAS, I. de J. M. (Ed.). Contribuição ao desenvolvimento da fruticultura na Amazônia. Belém, PA: Embrapa Amazônia Oriental, 2006. p.
ALVES, R. M.   +2 more
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New insights into the putative XX/XY sex chromosomal system in blue‐eyed red‐fin pleco Hypostomus soniae (Siluriformes, Loricariidae)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Blue‐eyed red‐fin pleco Hypostomus soniae (family Loricariidae) presented a putative sex system XX/XY in early stage. Aiming to explore the inter‐populational karyotypic variation and proposed emergence of the XX/XY system, we studied 13 H. soniae individuals (6 males, 7 females) from the Tapajós River.
Luan Aércio Melo Maciel   +6 more
wiley   +1 more source

Joint effects of elevated copper and temperature in juvenile Tambaqui exposed in black and white waters of the Amazon

open access: yesJournal 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

Plano Diretor do Centro de Pesquisa Agroflorestal da Amazônia Oriental - CPATU. [PDF]

open access: yes, 2017
bitstream/item/68666/1/IPDU-Cpatu ...
EMBRAPA. Centro de Pesquisa Agroflorestal da Amazônia Oriental.
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Amazonian drought of 2023: Environmental conditions relevant to fishes

open access: yesJournal of Fish Biology, EarlyView.
Abstract This paper provides a platform for the following studies within this Special Issue. ‘Ecophysiology of fishes in the two great tributaries of the Amazon in the Anthropocene’. It documents the water quality conditions and accompanying zooplankton community structure and biomass relative to fish health in the Rio Negro and Rio Solimões during the
Ora E. Johannsson   +10 more
wiley   +1 more source

Propagação de acessos de bacurizeiro (Platonia insignis Mart.) através da raiz primária de sementes em início de germinação. [PDF]

open access: yes, 2013
Publicado também: FRAZÃO, D. A. C.; HOMMA, A. K. O; VIÉGAS, I. de J. M. (Ed.). Contribuição ao desenvolvimento da fruticultura na Amazônia. Belém, PA: Embrapa Amazônia Oriental, 2006. p.
CARVALHO, J. E. U. de   +2 more
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Feeding ecology of an Amazonian electric knifefish under altered flood‐pulse dynamics caused by hydroelectric damming

open access: yesJournal of Fish Biology, EarlyView.
Abstract This study evaluated the effects of the controlled flood pulse on diet composition, trophic niche breadth and feeding intensity of Archolaemus janeae, an electric knifefish species with a restricted distribution in the Amazon Basin. Monthly samples were collected from December 2020 to November 2021 in the Volta Grande stretch of the Xingu ...
Ana F. V. N. M. Costa   +8 more
wiley   +1 more source

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