Seasonal hydrology and fish assemblage structure in the floodplain of the lower Amazon River
Abstract
We investigated how the taxonomic and functional structures of fish assemblages in the lower Amazon River floodplain responded to seasonal hydrological variations. Fishes were sampled in 440 aquatic habitats across a floodplain area of 17,673 km 2 during periods of high, receding, low and rising water. In addition, we recorded local environmental and landscape variables known to affect fish assemblages in floodplains. Redundancy analysis indicated that the taxonomic and functional structures of the fish assemblages were associated with water levels as well as local environmental, landscape and spatial variables. Our results showed that piscivores, planktivores and omnivores, as well as species with periodic and intermediate life history strategies, dominated the floodplain fish assemblages during periods of high‐water levels, whereas herbivores, invertivores and detritivores, as well as species of large body size with an equilibrium life history strategy, dominated the fish assemblages during periods of low‐water levels. Hydrology strongly influenced the structure of the fish assemblages in the Amazon floodplains. Our results indicate that the maintenance of seasonal hydrological dynamics in the basin is essential for the conservation of the regional fish diversity.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Seasonality and associated changes in water level structure fish communities in Amazonian rivers.
“Seasonality and associated changes in water level structure fish communities in Amazonian rivers (Fitzgerald et al., 2017; Silva et al., 2020); therefore, we controlled this influence on the pRDA.”
From Threshold responses of floating meadow fish communities to floodplain forest cover in the lower Amazon River (2025) · cites this paper as Silva et al., 2020
Seasonality is a major driver of fish assemblage structure in the Amazon.
“Seasonality is a major driver of fish assemblage structure in the Amazon (Fitzgerald et al., 2017; Silva et al., 2020).”
From Threshold responses of floating meadow fish communities to floodplain forest cover in the lower Amazon River (2025) · cites this paper as Silva et al., 2020
Cites
Hydropower and the future of Amazonian biodiversity
Lees, A. C., Peres, C. A., Fearnside, P. M., Schneider, M., & Zuanon, J. A. S. (2016) · Biodiversity and Conservation · doi:10.1007/s10531-016-1072-3 · Cited by 372 · see citing works
Flagged first, then by citations
Cited by
Sorted by citations
Grinstead, S., Arantes, C. C., Winemiller, K. O., Kelso‐Winemiller, L. C., de Oliveira, J. A., Petrere, M., & Freitas, C. E. C. (2025) · Conservation Biology · doi:10.1111/cobi.70110
Self-citation
- Authors
- Silva, P. B., Arantes, C. C., Freitas, C. E. C., Petrere, M., & Ribeiro, F. R. V.
- Affiliations
- Universidade Federal do Oeste do Pará (BR)
- West Virginia University (US)
- Departamento de Ciências Pesqueiras Universidade Federal do Amazonas Manaus Amazonas Brazil
- Universidade Santa Cecília (BR)
- Corresponding author
- Silva, Poliane B.
- Venue
- Ecology of Freshwater Fish
- Publisher
- Wiley
- Published
- 2020-09-22
- Volume
- 30
- Issue
- 2
- Pages
- 162-173
- ISSN
- 0906-6691 (ISSN-L)
- 1600-0633
- OpenAlex
- W3088405939
- Cited by
- 46
- References
- 1
- Citations by year
- 2026: 12 · 2025: 8 · 2024: 8 · 2023: 7 · 2022: 8 · 2021: 3
- FWCI
- 2.80
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Ecology Of Freshwater Fish (publishedVersion)
- Funders
- National Science Foundation (1639115, 1257813)
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Topics
- Physical Sciences › Environmental Science › Nature and Landscape Conservation › Fish biology, ecology, and behavior
- Physical Sciences › Environmental Science › Nature and Landscape Conservation › Fish Ecology and Management Studies
- Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Fish Biology and Ecology Studies
- Keywords
- fish community structure, seasonal hydrology, lower Amazon River, water level fluctuations, fish functional traits, life history strategies, fish diet, fish size, floodplain habitats
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
