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Food of Central Amazonian fishes. Contribution to the nutrient-ecology of Amazonian rain-forest-streams
Hans-Armin Knöppel
- Vol. 2, Iss: 3, pp 257-352
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TLDR
The material studied was collected in the Brazilian Arnazon region some years ago by E.-J. Fittkau's expeditions was to study the systematics and ecology of ähiro.rómlds.Abstract:
The material studied was collected in the Brazilian Arnazon region some years ago. In 19ô5 Dr. E.-J. Fr.rß,ru of Plön, at the behest of sioli, caught the fishes. The primary aim of ór. Fittkau's expeditions was to study the systematics and ecology of ähiro.rómlds. By his remarkablè activity he succeeded in removing the fishes from creeks at several localities at various times, In 1967 Mr. W. Junk was kind enough to catch supplementary fishes at the same localities.read more
Citations
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Tangled webs: reciprocal flows of invertebrate prey link streams and riparian zones
TL;DR: Characteristics of reciprocal prey subsidies are reviewed and it is investigated whether reciprocal prey fluxes stabilise linked stream–riparian ecosystems, how landscape context affects the magnitude and importance of subsidies, and how impacts of human disturbance can propagate between streams and riparian zones via these trophic linkages.
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Ontogenetic diet shifts and resource partitioning among piscivorous fishes in the Venezuelan ilanos
TL;DR: Patterns of habitat utilization indicate that piranhas may restrict diurnal use of the open-water region by other piscivores, and diffuse competition for food resources during the approximately four-month transition season probably is the principal factor yielding patterns of diet specialization.
Book ChapterDOI
Fish communities along environmental gradients in a system of tropical streams
Paul L. Angermeier,James R. Karr +1 more
TL;DR: Terrestrial predators appeared to be more important than food availability in determining distributions of fish among habitats and streams, however, trophic diversity of fish communities may be related to the reliability of available food resources.
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Structure of tropical river food webs revealed by stable isotope ratios
TL;DR: Although isotope ratios could not resolve species-level feeding pathways, they did reveal how top consumers integrate isotopic variability occurring lower in the food web.
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Life history and management of the tambaqui (Colossoma macropomum, Characidae): an important Amazonian food fish
TL;DR: The genus has not been adequately revised, but it appears to be represented by only two species in the Amazon Basin, and the Amazonianspecies are much confused in the literature, but easily distinguished up onexamination of live or dead specimens.
References
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Paired Frontal Foramina in Living Teleosts: Definition of a New Family of Characoid Fishes, the Crenuchidae
TL;DR: Crenuchus spilurus Günther is a small characoid fish, from Guiana and the Amazon basin, possessing a number of unusual features, which would place it near the cheirodonts and possibly also near Characidium.