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Mostrando ítems 421-430 de 978
Temporal variation in C, N and P of the periphyton on the tropical aquatic macrophyte echinochloa polystachya (H.B.K.) hitch. In Jurumirim Reservoir (São Paulo, Brazil)
(1998-09-01)
The temporal variations in C, N and P concentrations of the periphyton on the natural substratum (Echinochloa polystachya) and its relationships to the water's climatological (air temperature and precipitation), hydrodynamic ...
Estrutura e dinâmica da comunidade de macroinvertebrados em uma bacia hidrográfica do sul do Brasil
(Universidade do Vale do Rio do Sinos, 2009-02-26)
Lotic ecosystems have a range of ecological variables that change from source to mouth, having direct influence on succession of aquatic biota. In temperate regions rivers are different from those located in tropical ...
Estrutura e dinâmica da comunidade de macroinvertebrados em uma bacia hidrográfica do sul do Brasil
(Universidade do Vale do Rio do Sinos, 2009-02-26)
Lotic ecosystems have a range of ecological variables that change from source to mouth, having direct influence on succession of aquatic biota. In temperate regions rivers are different from those located in tropical ...
Meristic and morphological differentiation of Orestias species (Teleostei; Cyprinodontiformes) from the southern Altiplano
(Springer, 2020)
Orestias is an endemic fish genus of lacustrine
and lotic systems distributed on theAndes highland region
(Altiplano) of Peru, Bolivia and Chile (9°S to 22°S).
Based on morphological characters, taxonomic studies
have ...
Análisis del post - proceso de un modelo hidrodinámico en Iber, caso de estudio Quebrada Cashahuacra
(Universidad Santo TomásMaestría Ingeniería Civil con Énfasis en HidroambientalFacultad de Ingeniería Civil, 2022-01-26)
This document was prepared with the purpose of developing a quantitative and deterministic investigation, since it will allow identifying the areas that present a high percentage of probability to suffer flooding processes ...
Eunotiaceae Kützing (Bacillariophyceae) planctônicas do Sistema Lago dos Tigres, Britânia, GO, Brasil
(Instituto de Botânica, 2012-06)
This study aimed to survey the species of Eunotiaceae Kützing family occurring in the plankton of Sistema Lago
dos Tigres (Britânia, Goiás State, 15º36'33,5''-15º22'8,7"S and 51º17'56,3''-51º16'91"W), environment composed ...
Effect of density on population development in the Amazon River prawn Macrobrachium amazonicum
(Inter-research, 2010-01-01)
The Amazon River prawn Macrobrachium amazonicum is widely distributed in lentic and lotic environments of South America, and shows different male morphotypes. In the present study, the effect of crowding on the general ...
Náyade de Brechmorhoga pertinax (Odonata: Libellulidae)
(Anales del Instituto de Biología serie Zoología, 2009)
The genus Chlamydotheca Saussure (Crustacea: Ostracoda) in northeastern Argentina
(Sociedade Brasileira de Carcinologia, 2011-12)
The genus Chlamydotheca Saussure, 1858 is a typical representative of the Neotropical ostracod fauna that occupies lotic and lentic environments including temporary and permanent ponds. Up to the present, four species ...
Plankton richness and abundance in several different hydrological situations in lakes lateral to a river: a case study in the mouth zone of a tributary into a tropical reservoir.
(2011-01-01)
A descriptive analysis of the responses of plankton from lakes lateral to a river in its mouth zone into a tropical reservoir to water level variations is presented. Three situations were reported: 1) a comparison of species ...