Results 91 to 100 of about 7,373 (259)
Genetics and Molecular Research, 2013 The synthetic hormone, 17-α-methyltestosterone (MT), is used in fish hatcheries to induce male monosex. Androgenic effects on various fish species have been reported; however, few studies have assessed possible genotoxic effects, although there are concerns about such effects in target and non-target species.
Carla Letícia Gediel Rivero-Wendt +4 more
openalex +3 more sources
Iheringia: Série Zoologia, 2001 The most abundant species caught in the tributaries of the Volta Grande dam, Buriti, Divisa and Água Comprida streams were Plagioscion squamosissimus (Heckel, 1840), Pimelodus maculatus Lacépède 1803, Myleus tiete (Eigenmann & Norris, 1900), Astyanax ...
Braga Francisco Manoel de Souza
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Peixes onivoros da planicie inundavel do rio Miranda, Pantanal, Mato Grosso do Sul, Brasil. [PDF]
, 2011 Identificaram-se 24 especies de peixes onivoros na planicie de inundacao do rio Miranda (dois meandros abandonados, uma vazante e uma baia). Destas, 11 sao Characiformes, 9 Siluriformes e 4 Perciformes. Entre os Characiformes, 9 sao da familia Characidae,
ALMEIDA, V. L. L. de +3 more
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Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2015 The aim of this study was to evaluate the stocking density for juveniles for two different species of characins (Astyanax bimaculatus and A. scabripinnis) in a recirculation system.
A. Jatobá, B. C. Silva
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Diversidad y relaciones ecomorfol?gicas de la comunidad ?ctica del complejo de humedales de paz de ariporo hato corozal, Casanare [PDF]
, 2018 122 p. Recurso Electr?nicoLas sabanas inundables de la cuenca del r?o Orinoco se caracterizan por tener una alta diversidad ecosist?mica, heterogeneidad estructural y funcional, contribuyendo a la conformaci?n de diferentes tipos humedales tanto l ...
Bedoya Giraldo, Daniela +1 more
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Checklist of the Freshwater Fishes of Argentina (CLOFFAR) [PDF]
, 2015 The purpose of this paper is to present an updated list of freshwater fishes found in Argentina based on the available literature. Since the last list was published in 2003, most systematical and distributional changes were presented on www.pecescriollos.
Koerber, Stefan, Mirande, Juan Marcos
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Implications of differences between temperate and tropical freshwater ecosystems for the ecological risk assessment of pesticides [PDF]
Despite considerable increased pesticide use over the past decades, little research has been done into their fate and effects in surface waters in tropical regions.
Brink, P.J., van den, Daam, M.A.
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Revista Brasileira de Parasitologia Veterinária, 2013 The objective of the present study was to evaluate the parasite fauna of four species of ornamental fish collected in the Chumucuí River, municipality of Bragança, Pará, Brazil. From June 2006 to December 2007.
Rodrigo Yudi Fujimoto +4 more
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Ichthyofauna of coastal lakes and the Igaraçu River in Ilha Grande, Delta do Parnaíba, Parnaíba, Piauí State, northeastern Brazil [PDF]
Check List, 2014 This study aims to provide a list of fish species from the Igaraçu River and some lakes of the lower Parnaíba River, Delta do Parnaíba, northeastern state of Piauí, Brazil.
Filipe Melo, Rennan Melo, Lucas Resende
doaj +3 more sources
New records of helminth parasites in two species of river fish, province of Salta, Argentina [PDF]
, 2014 En ríos y otros cursos de agua de la provincia de Salta se capturaron ejemplares de Trichomycterus spegazzini (Berg, 1897) y Jenynsia alternimaculata (Fowler, 1916); ambos resultaron parasitados por los nematodes Contracaecum sp. y Cucullanus (Cucullanus)
Ailan Choke, Lorena Gisela +3 more
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