Feeding ecology and habitat preferences of the catfish genus Trichomycterus in low-order streams of the Colombian Andes

Six lower order streams in the south‐west of Colombia were sampled on a monthly basis in order to determine the status of Trichomycterus species in relation to their food supply (macroinvertebrates), and physico‐chemical habitat. Fishes were sampled by electrofishing and samples taken for dietary an...

Full description

Saved in:
Bibliographic Details
Published in:Journal of fish biology 2006-04, Vol.68 (4), p.1026-1040
Main Authors: Chará, J. D., Baird, D. J., Telfer, T. C., Rubio, E. A.
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Andean streams
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
Chironomidae
Ephemeroptera
feeding
Fresh water ecosystems
Freshwater
Fundamental and applied biological sciences. Psychology
habitat
Oligochaeta
Synecology
Trichomycterus
Trichoptera
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Six lower order streams in the south‐west of Colombia were sampled on a monthly basis in order to determine the status of Trichomycterus species in relation to their food supply (macroinvertebrates), and physico‐chemical habitat. Fishes were sampled by electrofishing and samples taken for dietary analysis. Macroinvertebrates were collected using a Surber sampler. Trichomycterus spp. populations were present in all streams in habitats ranging from soft to hard substrata and from relatively stagnant waters to fast flowing streams. The average density of the fishes ranged from 0·06 to 1·14 individuals m−2 with peaks in population corresponding to recruitment of individuals of
ISSN:0022-1112
1095-8649
DOI:10.1111/j.0022-1112.2006.00984.x