ABSTRACT This work described a novel halotolerant phage, JMT-1, with a spherical morphology. JMT-1, which was isolated from a hypersaline lake, could produce clear plaques on Chromohalobacter sp. LY7-3. The purified virions are spherical, have no visible tail, and are about 30-50 nm in diameter. JMT-1 ha...
Bacterias/virología,
Bacteriófagos/clasificación,
Bacteriófagos/genética,
Bacteriófagos/aislamiento & purificación,
Bacteriófagos/fisiología,
Genoma Viral,
China,
Especificidad del Huésped,
Lagos/análisis,
Lagos/virología,
Cloruro de Sodio/análisis,
Virión/clasificación,
Virión/aislamiento & purificación,
Virión/fisiología
ABSTRACT This paper aims to compare alpha and beta diversities of planktonic microcrustaceans from three reservoirs located nearby in a tropical semiarid basin. Our hypothesis was that alpha and beta diversities of the community are different, although the ecosystems are located close to each other. We c...
Abstract We evaluated the nesting by Crocodylus moreletii in Lago de Catemaco, Veracruz, southeastern, Mexico. During the nesting and hatching seasons, we searched for nests along the northern margins of the lake and small associated streams. We investigated egg mortality by weekly monitoring each of the...
Abstract The objective of this study was to evaluate the structure of the fish assemblage in the ten years following the closing of the lake of the Itá Hydroelectric Power Plant. Seasonal collections were conducted from 2001 to 2010. During this period, 44,834 fish were captured, totaling 3,818.01 kg, a...
Abstract This study presents a review of scientiometric data about freshwater microcrustaceans (Copepoda, Ostracoda, Branchiopoda: Cladocera, Anostraca, Notostraca and Conchostraca) in Brazil from 1990-2014. This review is based on 179 papers published across four databases, using the following keywords ...
Abstract The Llanquihue lake is included in the called Araucanian or Nord Patagonian lakes located between 38-41° S. These lakes are characterized by their oligo-mesotrophic status due to human intervention which takes to the increase in nutrients inputs from industries and towns. Effects on zooplankton...
Abstract Limnological features of two reservoirs were studied in dry (August 2013) and rainy (January 2014) periods to evaluate the water quality that supply the city of Guarulhos, southeast Brazil. Water samples were collected in three depths and the following characteristics were measured: alkalinity, ...
Abstract Predator-prey interactions involving an aquatic insect and zooplanktonic prey of different sizes were investigated to quantify prey mortality exposed to predators. Laboratory experiments were undertaken with the young and adult gerrid Rheumatobates crassifemur to test predation and size selectiv...
Distribución Animal,
Brasil,
Cladóceros/crecimiento & desarrollo,
Daphnia/crecimiento & desarrollo,
Cadena Alimentaria,
Heterópteros/fisiología,
Lagos,
Conducta Predatoria,
Estaciones del Año,
Análisis Espacial,
Zooplancton/crecimiento & desarrollo
ABSTRACT We studied the effects of particulate and dissolved optically active components on the attenuation of photosynthetic active radiation (PAR) in a tropical lake. The temporal and spatial distribution of tripton, Chl-a and aCDOM(440) and their relative contribution to the diffuse PAR attenuation co...
Clorofila/efectos de la radiación,
Clorofila A,
Monitoreo del Ambiente,
Lagos,
Luz,
Metacrilatos,
Modelos Biológicos,
Fotosíntesis/fisiología,
Fitoplancton/efectos de la radiación,
Poliuretanos,
Estaciones del Año,
Análisis Espacio-Temporal
Abstract Notonectids are widely distributed in freshwaters and can prey on zooplankton in temperate lakes. However, its role in structuring the zooplankton community is unknown in tropical lakes. Thus, our objective was to study the notonectid Martarega uruguayensis in a Brazilian tropical shallow lake t...
