The present study reports on seasonal and spatial variations in diversity, distribution and abundance of dinoflegellates and indicates the presence of HAB species in Pakistan waters. A total of 179 taxa, recorded in this study from offshore and near-shore waters, belong to 41 genera in 26 families and 10...
Abstract Silicon (Si) is an element that can improve the growth and development of rice plants in water-deficient environments because it is an enzymatic stimulant, signaling for production of antioxidant compounds. Therefore, the aim of this study was to examine the relationship between water deficiency...
The aluminum in high levels in the soil affects the emergence, growth, and development of various species. Therefore, the objective of this study was to evaluate the emergence and physiological behavior of four provenances of Jatropha curcas subjected to different levels of aluminum. The experim...
Plant growth promotion by microorganisms may be a viable alternative to increase lettuce production through pathogens control and nutrients absorption increase. Trichoderma and Pseudomonasgenus are examples of widely studied microorganisms with the capacity to promote plant growth...
Abstract Gall-inducing insects manipulate the structural, histochemical and physiological profiles of host-plant tissues to develop galls. We evaluated galls induced by Eugeniamyia dispar on the leaves of Eugenia uniflora in an attempt to answer the following questions: (i) How does this gall-inducing in...
Abstract Current study investigated the effectiveness of different macrophytes as culture media for Ankistrodesmus gracilis in laboratory conditions. Significant difference (p < 0.05) was reported in cell density with regard to conventional culture medium (CHU12) and macrophytes culture media. Mean ce...
Acuicultura,
Brasil,
Clorofila/análogos & derivados,
Clorofila A,
Chlorophyta/química,
Chlorophyta/crecimiento & desarrollo,
Medios de Cultivo/química,
Fertilizantes,
Microalgas/química,
Microalgas/crecimiento & desarrollo,
Nitratos,
Valor Nutritivo,
Fósforo,
Aguas Residuales/análisis,
Aguas Residuales/química
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 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 Satellite images are an effective tool for the detection of phytoplankton blooms, since they cause striking changes in water color. Bloom intensity can be expressed in terms of chlorophyll-a concentration. Previous studies suggest the use of Landsat TM4/TM3 reflectance ratio to retrieve surface ...
Abstract This study aims to evaluate the environmental factors determining of the changes in phytoplankton structure in spatial (upper, middle and lower course) and seasonal (dry and rainy period) scales in a eutrophic river (Almada River, northeastern Brazil). In the study period, total accumulated rain...
Biodiversidad,
Brasil,
Clorofila,
Clorofila A,
Diatomeas,
Ecosistema,
Monitoreo del Ambiente/métodos,
Fitoplancton/crecimiento & desarrollo,
Lluvia,
Ríos,
Estaciones del Año,
Análisis Espacio-Temporal,
Clima Tropical
