Hydrologic connectivity affects fish assemblage structure, diversity, and ecological traits in the unregulated Gambia River, West Africa

White, Seth M.; Ondračková, Markéta; Reichard, Martin

doi:https://dx.doi.org/10.1111/j.1744-7429.2011.00840.x

Number of the records: 1

Hydrologic connectivity affects fish assemblage structure, diversity, and ecological traits in the unregulated Gambia River, West Africa

1.

SYSNO ASEP	0368733
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Hydrologic connectivity affects fish assemblage structure, diversity, and ecological traits in the unregulated Gambia River, West Africa
Author(s)	White, Seth M. (UBO-W) Ondračková, Markéta (UBO-W)_{RID, ORCID, SAI} Reichard, Martin (UBO-W)_{RID, ORCID, SAI, SAI}
Number of authors	3
Source Title	Biotropica. - : Wiley - ISSN 0006-3606 Roč. 44, č. 4 (2012), s. 521-530
Number of pages	10 s.
Language	eng - English
Country	US - United States
Keywords	fish assemblage ; functional morphology ; large tropical rivers ; lateral migration ; multivariate analysis ; pre-impoundment ; reference condition ; trophic position
Subject RIV	EH - Ecology, Behaviour
R&D Projects	IAA6093404 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
Institutional support	UBO-W - RVO:68081766
CEZ	AV0Z60930519 - UBO-W (2005-2011)
UT WOS	000305941300011
EID SCOPUS	84863469832
DOI	10.1111/j.1744-7429.2011.00840.x
Annotation	The Gambia River of West Africa, scheduled to undergo construction of a major dam, is a large tropical river with lateral connectivity across its floodplain and a natural flow regime. We compared patterns of fish diversity, habitat use, fish assemblage structure, and the distribution of trophic position and body morphology in riverine and floodplain habitats in Niokolo Koba National Park, downstream of the planned dam. A total of 49 fish species were captured. Fish species exhibited a range of habitat use patterns including habitat generalist, specificity to particular habitats, and apparent lateral migration among habitats between seasons. Species richness was homogenous among habitats in the wet season yet increased with isolation from the main channel in the dry seasons. Our results suggest that homogenization of floodplain habitats after damming could lead to both decreased taxonomic diversity and decreased functional disparity of the fish assemblage.
Workplace	Institute of Vertebrate Biology
Contact	Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524
Year of Publishing	2013

Number of the records: 1