Artículo
Interannual flow variability in a large subtropical–temperate floodplain: A challenge for fish reproduction
Abrial, Elie
; Espínola, Luis Alberto
; Rabuffetti, Ana Pia
; Amsler, Mario Luis
; Wantzen, Karl Matthias
Fecha de publicación:
05/2018
Editorial:
National Research Council Canada-NRC Research Press
Revista:
Canadian Journal Of Fisheries And Aquatic Sciences
ISSN:
0706-652X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Fluctuations of temperature and water levels are the two main drivers of aquatic life in river floodplain ecosystems. The large Middle Paraná River floodplain exhibits marked seasons and important interannual hydrological changes. Using a three-factor-based approach (fish reproductive traits, hydroclimatic conditions, and floodplain recruitment patterns), we analyzed how fish life history evolves within this fluctuating environment. We observed that hydroclimatic conditions can be considered through three main interannual variations that prompt the most abundant Paraná species to adopt four different main reproductive strategies: (i) typical periodic strategists are dependent on large spring?summer floods and juveniles strongly predominate in the floodplain when such a condition occurs, (ii) periodic?opportunistic strategists are associated with floods, regardless of their timing, (iii) periodic?equilibrium strategists take advantage of spring?summer floods whatever the intensity and duration, and (iv) equilibrium strategists have low flood dependence and higher stability in temporal fish recruitment. This work brings forth a first synthesis of fish life history in the Middle Paraná River and evidences how important both hydrological and temperature fluctuations are to interpret its complexity.
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Articulos(INALI)
Articulos de INST.NAC.DE LIMNOLOGIA (I)
Articulos de INST.NAC.DE LIMNOLOGIA (I)
Citación
Abrial, Elie; Espínola, Luis Alberto; Rabuffetti, Ana Pia; Amsler, Mario Luis; Wantzen, Karl Matthias; Interannual flow variability in a large subtropical–temperate floodplain: A challenge for fish reproduction; National Research Council Canada-NRC Research Press; Canadian Journal Of Fisheries And Aquatic Sciences; 76; 3; 5-2018; 390-400
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