Abstract In November 2014 and May 2015, a total of 44 specimens of the South American silver croaker Plagioscion squamosissimus were collected: 30 in Marajó Bay and 14 in the Tapajós River, state of Pará, Brazil. The aim was to investigate the presence of anisakid nematodes and determine their parasit...
Abstract The anthelminthic activity of the essential oil (EO) of Piper aduncum L. was tested in vitro on eggs and larvae of resistant (Embrapa2010) and susceptible (McMaster) isolates of Haemonchus contortus. The EO was obtained by steam distillation and its components identified by chromatography. EO co...
Abstract The aim of this study was to select different genotypes of Lippia sidoides with the highest activity against larvae and engorged females of the tick Rhipicephalus (Boophilus) microplus. The germplasms studied were LSID006, LSID102, LSID103 and LSID104. The LSID104 genotype, that presented carvac...
Abstract: INTRODUCTION: The significant increase in dengue, Zika, and chikungunya and the resistance of the Aedes aegypti mosquito to major insecticides emphasize the importance of studying alternatives to control this vector. The aim of this study was to develop a controlled-release device containing ...
Aedes/efectos de los fármacos,
Preparaciones de Acción Retardada,
Dengue/transmisión,
Sistemas de Liberación de Medicamentos,
Insectos Vectores/efectos de los fármacos,
Insecticidas/administración & dosificación,
Insecticidas/aislamiento & purificación,
Larva/efectos de los fármacos,
Dosificación Letal Mediana,
Piper nigrum/química,
Extractos Vegetales/administración & dosificación
Abstract Clinodiplosis agerati, a new galling species that induces stem galls on Ageratum conyzoides (Asteraceae) is described and illustrated (larva, pupa, male, female and gall) based on material collected in Minas Gerais, Brazil. The new species is compared with the other Neotropical species. This is ...
Abstract Larvae and adults of certain species of predator lady beetles feed on pollen, guaranteeing their survival, and at times, reproduction in the absence of preferred prey. Palynology, therefore, may contribute in the investigation of botanical families visited by these predators in order to obtain t...
ABSTRACT In this study, the cry1Ab gene of previously characterized and Lepidoptera-, Diptera-, and Coleoptera-active Bacillus thuringiensis SY49-1 strain was cloned, expressed and individually tested on Ephestia kuehniella (Lepidoptera: Pyralidae) and Plodia interpunctella (Lepidoptera: Pyralidae) larva...
Bacillus thuringiensis/fisiología,
Proteínas Bacterianas/genética,
Endotoxinas/genética,
Expresión Génica,
Proteínas Hemolisinas/genética,
Control de Insectos,
Bacillus thuringiensis/ultraestructura,
Proteínas Bacterianas/metabolismo,
Proteínas Bacterianas/toxicidad,
Clonación Molecular,
Endotoxinas/metabolismo,
Endotoxinas/toxicidad,
Proteínas Hemolisinas/metabolismo,
Proteínas Hemolisinas/toxicidad,
Control de Insectos/métodos,
Insecticidas,
Larva,
Mariposas Nocturnas/efectos de los fármacos
Abstract:Coral reef zooplankton represents a key community in coral ecosystems, as they are involved in trophic and biogeochemical dynamics, and recruitment processes. Zooplankton abundance, composition and biomass were surveyed at six stations within the coral reef at Cahuita National Park, Limon, Costa...
Análisis de Varianza,
Biomasa,
Región del Caribe,
Arrecifes de Coral,
Costa Rica,
Crustáceos/fisiología,
Larva/fisiología,
Moluscos/fisiología,
Densidad de Población,
Dinámica Poblacional,
Estaciones del Año,
Estadísticas no Paramétricas,
Tiempo (Meteorología),
Zooplancton/fisiología
ResumenLas corvinas son especies de interés comercial que han sido sobreexplotadas en el Golfo de Nicoya, Costa Rica. El objetivo de este estudio fue describir por primera vez, el desove espontáneo y la ontogenia de las larvas de la corvina aguada Cynoscion squamipinnis en cautiverio, con el fin de rea...
The protein profiles and proteolytic activity of the excretory secretory products (E/SP) of the first (L1), second (L2) and third (L3) larval stages of Cochliomyia hominivorax were studied in the laboratory. Analysis on the E/SP protein profile was carried out using polyacrylamide gel containing sodium d...
