Fish community in the floodoplain of the middle Gambia River in Senegal.

ONDRAČKOVÁ, Markéta, Martin REICHARD, Barbora BÍMOVÁ and Radim BLAŽEK. Fish community in the floodoplain of the middle Gambia River in Senegal. In XII European Congress of Ichthyology, 9-13 September 2007, Dubrovnik, Croatia. 2007.

Basic information

• Original name: Fish community in the floodoplain of the middle Gambia River in Senegal.
• Name in Czech: Společenstva ryb v záplavovém území střední Gambie v Senegalu
• Authors: ONDRAČKOVÁ, Markéta, Martin REICHARD, Barbora BÍMOVÁ and Radim BLAŽEK.
• Edition: XII European Congress of Ichthyology, 9-13 September 2007, Dubrovnik, Croatia. 2007.

Other information

• Original language: English
• Type of outcome: Presentations at conferences
• Field of Study: 10600 1.6 Biological sciences
• Country of publisher: Croatia
• Confidentiality degree: is not subject to a state or trade secret
• Organization unit: Faculty of Science
• Keywords in English: Senegal; fish; Niokolo Koba National Park
• Tags: FISH, Niokolo Koba National Park, Senegal

Abstract

The aim of this study was to investigate fish community in a wide spectrum of various biotopes in the floodplain of the middle Gambia River at Niokolo Koba National Park in Senegal. Fish abundance and diversity of fish community were studied and compared in four dominating habitat types: main river channel, small tributaries, oxbow lakes and periodic pools. A total of 61 fish species was observed. Fish community structure differed among the habitats and each habitat was characterized by one or more specialized species. Small, shallow temporary habitats were characterized by a high abundance of juvenile stages of several fish species, indicating their importance for fish reproduction and as nursery habitats. The fish abundance in small rivers and periodic pools was highly variable and related to the level of connection with permanent waters.

Abstract (in Czech)

Cílem studie bylo sledovat společenstva ryb v širokém spektru biotopů záplavového území střední Gambie v národním parku Niokolo Koba v Senegalu. Abundance ryb a diverzita společenstev byla studována a srovnávána ve 4 dominantních typech prostředí: hlavní tok řeky, přítoky, odstavená ramena a periodické tůně. Celkem bylo zjištěno 61 druhů ryb. Struktura společenstva se lišila mezi jednotlivými biotopy a každé prostředí bylo charakterizováno jedním nebo více specializovanými druhy. Vysoká variabilita v abundanci ryb v malých tůních souvisela především s intenzitou spojení s hlavním tokem.

Links

• MSM0021622416, plan (intention): Name: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase

Investor: Ministry of Education, Youth and Sports of the CR, Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time