Results 141 to 150 of about 351,222 (274)

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, Chris M. Wood, Adalberto Luis Val   +2 more
wiley   +1 more source

Marxismo ecológico negro

Tabula Rasa, 2018
Mediante el análisis de una obra histórica y una novela de los afrocolombianos Rogerio Velásquez y Manuel Zapata Olivella respectivamente, me propongo rescatar el marxismo ecológico negro de dichos autores. El objetivo es mostrar la interseccionalidad de la dominación racial, de clase, de género y de la madre-tierra, a través de la experiencia de la ...
openaire   +3 more sources

Branchial localization of acid (A‐type) and base (B‐type) excreting ionocytes in Amazonian stenohaline freshwater Potamotrygon ray

Journal of Fish Biology, EarlyView.
Abstract The branchial epithelium of Potamotrygon—a member of the only strictly freshwater elasmobranch family Potamotrygonidae—was observed via immunohistochemistry, and two distinct forms of ionocytes were identified. The acid (A‐type) and base (B‐type) secreting cells with respective basolateral–apical localizations of Na+/K+‐ATPase–Na+/H+ exchanger
M. W. Rossi, C. M. Wood, A. L. Val, J. M. Wilson   +3 more
wiley   +1 more source

Linking climate change, rice yield, and migration: the Philippine experience [PDF]

, 2013
This study tests the hypothesis that climate change, through its rice productivity impacts, induces out-migration in the Philippines. Results show that climate change effects such as increasing night time temperature and extreme rainfall pattern, by way ...
Bordey, F.H., Launio, C.C., Ogena, N.B., Quilang, E.J.P., Tolentino, C.M.A.   +4 more
core  

En lo negro negro

, 1980
Esborrany del poema LXIV de 'Los pasos del cazador'.
openaire   +1 more source

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

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, Carolyn Morris, Susana Braz‐Mota, Chris M. Wood, Rafael M. Duarte, Ora E. Johannsson, Adalberto L. Val   +6 more
wiley   +1 more source

Amazonian drought of 2023: Environmental conditions relevant to fishes

Journal 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, Thiago L. Nascimento, Helen Agasild, Priit Zingel, Rafael M. Duarte, Gudrun de Boeck, Anne Cremazy, Jhonatan Mota da Silva, Carolyn Morris, Chris M. Wood, Adalberto L. Val   +10 more
wiley   +1 more source

Fish fights over fish rights: managing exit from the fisheries and security implications in Southeast Asia: Philippines case study on conflicts arising from zoning of municipal waters [PDF]

Disputes, Aquaculture, Water rights, ISEW, Philippines,
Cainglet, E.P., Camit, K., Espectato, L.N., Ferrer, A.J., Go, J.A., Monteclaro, H.M., Pacete, O.T., Siason, I.M., Tumilba, M.B., University of the Philippines. Visayas   +9 more
core  

Pejerrey (Odontesthes bonariensis) Under Siege: Main Infectious Diseases and Their Role in Aquaculture and Wild Populations Amidst Environmental Change

Journal of Fish Diseases, Volume 48, Issue 4, April 2025.
ABSTRACT The pejerrey (Odontesthes bonariensis) is a key species for recreational and commercial fisheries in Argentina and holds significant aquaculture potential. It has been introduced to various countries worldwide, including Japan, where intensive aquaculture has developed.
Aarón Torres‐Martínez, Miguel Mancini, Fabian Grosman, Gustavo Manuel Somoza, Carlos Augusto Strüssmann   +4 more
wiley   +1 more source

Vida cotidiana de los negros en Hispanoamérica [Recurso electrónico] [PDF]

Introducción / Marta B. Goldberg. La población africana en el Río de la Plata: Delito, adaptación y negociación / Silvia Cristina Mallo. Vida y muerte cotidiana de los negros en el Río de la Plata / Marta B. Goldberg y Silvia C. Mallo.
Feliú, Virtudes, Fernández, Mirta, García, Gloria, Mallo, Silvia Cristina   +3 more
core   +1 more source