Longitudinal Gradient
Fish habitat associations along a longitudinal gradient in a preserved coastal Atlantic stream, Brazil
... headwater-mouth gradient of a coastal Atlantic ...environmental gradient from higher water velocity and rocky bottom to deeper and sandy areas in the headwater-mouth ...
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Life history traits of Characidium pterostictum (Characiformes, Crenuchidae) along the longitudinal gradient of a Neotropical river in southern Brazil
... Characidium pterostictum is usually found in shallow, clear water and rocky bottom, being reported to prefer unshaded sites with moderate water flow (Aranha et al., 1998; Bozzetti & Schulz, 2004). However, streams ...
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Longitudinal gradient in limnological variables in the Upper Paraná River: a brief description and the importance of undammed tributaries
... continuous longitudinal gradient in the physico-chemical variables within a river system, and that this gradient results in a series of responses within the natural communities (Vannote et ...the ...
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SPATIAL AND TEMPORAL ORGANIZATION OF AQUATIC INSECTS ASSEMBLAGES IN THE LONGITUDINAL GRADIENT OF A TROPICAL RIVER
... altitudinal gradient in Ecuatorian streams, but they worked mainly at family ...the longitudinal feature of the aquatic biota of streams in this part of the ...the longitudinal gradient of a ...
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Influence of the river flow on the structure of fish assemblage along the longitudinal gradient from river to reservoir
... water level also have direct influences on the structure of spe- cies assemblages along the longitudinal gradient due to changes in water features (e.g. transparency and allochthonous mate- rial input), ...
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DIVERSITY AND HABITAT PREFERENCE OF AQUATIC INSECTS ALONG THE LONGITUDINAL GRADIENT OF THE MACAÉ RIVER BASIN, RIO DE JANEIRO, BRAZIL
... insect assemblages along the Macaé River basin present a faunal disrupture along its longitudinal gradient, separating upper (upstream 4 th order rea- ches, around 700 m a.s.l.) from lo[r] ...
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Trophic structure of fish fauna along the longitudinal gradient of a first-order rural stream
... Although the tendencies mentioned above are statistically supported, other results observed herein did not follow a longitudinal pattern. This is the case of terrestrial insectivorous and invertivorous that, ...
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DIVERSITY ASSESSMENT OF BENTHIC MACROINVERTEBRATES, YEASTS, AND MICROBIOLOGICAL INDICATORS ALONG A LONGITUDINAL GRADIENT IN SERRA DO CIPÓ, BRAZIL
... of longitudinal gradients in lotic ecosystems in ...decreasing gradient was observed in these variable values from the 3 rd order stretch down to the 6 th order ...
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Anatomical and physiological plasticity in Leymus chinensis (Poaceae) along large-scale longitudinal gradient in northeast China.
... scale gradient, the increases in vessel and vascular diameters are favorable strategies for the grass species to tolerate drought, because relative larger vessel and vascular diameters, and vascular distances ...
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Longitudinal use of feeding resources and distribution of fish trophic guilds in a coastal Atlantic stream, southern Brazil
... the longitudinal gradient of a coastal Atlantic stream, southern ...the gradient, while omnivorous and piscivorous in the headwaters and middle stretches, respectively, and herbivorous in the middle ...
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Copepod assemblage structure (Crustacea: Copepoda) along a longitudinal environmental gradient in a tropical river-floodplain system, Brazil
... We observed a longitudinal gradient of nutrients along the sampled stretch of the Paraná River. This tendency of lower values of total phosphorous concentrations and turbidity in sampling sites closer to ...
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Influence of the riparian zone phytophysiognomies on the longitudinal distribution of fishes: evidence from a Brazilian savanna stream
... season can be explained by the increased volume of the habitat, which provides a higher availability of microhabitats and increases the amount of allochthonous material in the stream, increasing the availability of food ...
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Braz. J. Phys. vol.36 número1A
... particular gradient coil set the cur- rent distributions were unavailable to ...each gradient, the resonance frequency as a function of ...the longitudinal gradient produces even normal modes ...
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Fish assemblage in a semi-arid Neotropical reservoir: composition, structure and patterns of diversity and abundance
... Although they benefit human populations by providing water for consumption, agricultural activities, small industrial ventures, local subsistence fishing and, more recently, cage aquaculture, the construction of these ...
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FISH DIVERSITY ALONG SPATIAL GRADIENTS IN THE ITAIPU RESERVOIR, PARANÁ, BRAZIL
... the longitudinal gradient, the riverine and transitional zones had the highest average richness and diversity index ...the longitudinal gradient, the reservoir shores of the transversal ...
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Population biology of Trichomycterus sp. (Siluriformes, Trichomycteridae) in Passa Cinco stream, Corumbataí River sub-basin, São Paulo State, southeastern Brazil
... and longitudinal gradient, as well as to analyse its corporal condition in a temporal dimension, in such a way as to contribute to the understanding of biological aspects of that important component of the ...
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Subclinical Anthracycline-Induced Cardiotoxicity in the Long- Term Follow-Up of Lymphoma Survivors: A Multi-Layer Speckle Tracking Analysis
... exposure, longitudinal strains of all the three layers decreased ...transmural longitudinal strain gradient did not show any difference compared to normal ...of longitudinal myocardial ...the ...
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Rev. bras. farmacogn. vol.25 número5
... Chlorogenic and caffeic acids are bioactive phenolic compounds present in Cecropia glaziovii Snethl., Urticaceae, products that have been used as analytical markers. This paper reports a chemometric study aimed at ...
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Predicting for Sustainable Insurance with Adaptive Gradient Methods
... simple gradient descend and second order ...adaptive gradient based method are slightly better than simple gradient but still there performance is not comparable to second order ...simple ...
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Controls on soil organic carbon stocks in tidal marshes along an estuarine salinity gradient
... perate estuary, with freshwater marshes having the highest stocks, followed by brackish and salt marshes (Fig. 5 and Ta- ble 3). This tendency is in agreement with observations in other studies (Table 4). However, the ...
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