AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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Authors: FATEH MIMECHE, FRANCISCO JOSÉ OLIVA-PATERNA.
DOI: https://doi.org/10.24193/subbbiol.2018.2.10
Published Online: 2018-12-17
Published Print: 2018-12-17
pp.131-138
VIEW PDF: TEMPORAL VARIATIONS IN ABUNDANCE …
This study presents data on fish community structure in the K’sob reservoirs (semi arid area) in the East of Algeria. The artisanal fishery was conducted from September 2010 to August 2011. The monthly variations in species composition were analyzed by effort and catch per unit of effort (CPUE) and biomass per unit of effort (BPUE). A total of seven species representing three families was recorded in the investigated reservoir. Cyprinids dominated in this reservoir. Luciobarbus callensis is the native species captured in this area, the rest of the fish were introduced. The other Cyprinids are: Cyprinus carpio carpio, Hypophthalmichthys molitrix, Hypophthalmichthys nobilis, Squalius cephalus. The Poecilidae were represented by Gambusia holbrooki. The third family, Cichlidae, was represeted by Oreochromis niloticus. The dominant species in terms of abundance was L. callensis, however, C. carpio carpio and H. nobilis showed higher values in biomass. Several species showed significant temporal variation in monthly samples. The fish assemblage is dominated by invasive species, while predatory species were not detected in the study.
Keywords: abundance, Algeria, biomass, fish assemblage, reservoir.
