The influence of high waters on stream fish populations in regulated rivers

Spindler, Thomas

doi:10.1007/978-94-017-3360-1_15

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…Notwithstanding, many studies have reported negative impacts of increased discharge and floods on fish survival (e.g. Spindler, 1995; Mion, Stein & Marschall, 1998). River discharge may negatively influence recruitment success of riverine fish populations either directly (through discharge‐induced mortality) or indirectly (via reduced growth at lower water temperatures, discharge‐associated increases in energy expenditure or reduced food availability) (Nunn et al.…”

Section: Discussionmentioning

confidence: 99%

Fish, climate and the Gulf Stream: the influence of abiotic factors on the recruitment success of cyprinid fishes in lowland rivers

et al. 2007

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1. Climatic effects are increasingly being recognised as an important factor causing interannual variability in organism abundances in aquatic and terrestrial ecosystems. This study investigated the relationships between water temperature (cumulative degree-days >12°C), river discharge (cumulative discharge-days above basal discharge rate), the position of the North Wall of the Gulf Stream (NWGS), and the 0+ growth (September mean length) and recruitment success (year-class strength, YCS) of three species of cyprinid fishes in two contrasting English lowland rivers, using a 21-year dataset. 2. Contrary to the majority of studies on 0+ fishes, growth in the Yorkshire Ouse was most significantly correlated with river discharge, with water temperature of less importance. By contrast, temperature was more influential than discharge in the River Trent, possibly because of its regulated hydrological regime, although none of the relationships were statistically significant for this river. 3. Year-class strength of roach (Rutilus rutilus) was positively correlated with the position of the NWGS, and there was evidence of synchrony in recruitment success between rivers, but the relationships were poorer for chub (Leuciscus cephalus) and dace (Leuciscus leuciscus). The strongest relationships between YCS and discharge during specific time periods were for when the fish were in their early (especially larval) developmental stages, although none of the relationships were statistically significant because of inter-annual variations in river discharge relative to the timing of fish hatching. 4. Fishes are key predators in the majority of aquatic ecosystems and, as such, fluctuations in their abundances can have implications for ecosystem functioning as a whole. This study has demonstrated an underlying influence of broad-scale climatic effects on the recruitment of riverine fishes, in spite of local variations in biotic and abiotic conditions. The relative importance of various abiotic factors on the recruitment success of riverine cyprinid populations varies spatially and temporally. For example, river discharge is likely to be of relatively greater importance in poorly-structured rivers or those that are prone to large and rapid fluctuations in flow, while temporal variations occur because of interannual differences in river discharge relative to the timing of fish hatching. Biotic factors may also be important determinants of fish recruitment success, especially in rivers with stable and predictable flow regimes.

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Section: Discussionmentioning

confidence: 99%

Fish, climate and the Gulf Stream: the influence of abiotic factors on the recruitment success of cyprinid fishes in lowland rivers

et al. 2007

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“…The periodic recruitment of bream from isolated floodplain lakes may nevertheless be important for maintaining the population in the lower River Rhine. In that case, as for fish in many other lowland rivers (Welcomme, 1979;De Mérona & Gascuel, 1993;Spindler, 1995;Winemiller et al, 2000), stochasticity of discharge may strongly control population size of bream in the lower River Rhine.…”

Section: Discussionmentioning

confidence: 99%

Migration of bream between the main channel and floodplain lakes along the lower River Rhine during the connection phase

Grift

Buijse

Breteler³

et al. 2001

Journal of Fish Biology

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Mature bream (>30 cm L F ) dominated the fish communities in floodplain lakes along the lower River Rhine in The Netherlands, in terms of biomass, in all lakes at all times. In some lakes bream made up 99% of the total fish biomass. While immature, medium-sized bream (10-30 cm) and white bream and roach were abundant in the main channel of the river, these species were almost absent from the floodplain lakes. Inundation of the floodplains did not lead to spatial homogenization of species and length distributions. Small bream (<10 cm) left the floodplains to become resident in the main channel until maturity. Once mature (c. 30 cm), they returned to the lakes during the next inundation and stayed there. Mature bream that moved into the lakes were significantly smaller and had a lower condition than the resident bream. Turbid clay-pits were probably important sources of bream for the lower Rhine and the recruitment of the 0+ year group of bream to the riverine population was influenced by their discharge pattern. 2001 The Fisheries Society of the British Isles

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“…Les crues majeures sont souvent, considérées comme des aléas favorables à la productivité piscicole des écosystèmes qu'ils soient tempérés ou tropicaux (Welcomme, 1979 [41] ; Spindler, 1995 [42]). Cet effet positif peut être lié à l'importance de l'inondation des plaines alluviales favorable à la reproduction et aux développements des jeunes stades ou dans le remaniement des substrats du fond, en particulier au niveau des tronçons hydrologiquement perturbés.…”

Section: Iin Le Débit : Clé De Voûte Du Fonctionnement Des Hydrosystèunclassified

Le débit élément clé de la vie des cours d'eau : bilan des altérations et des possibilités de restauration.

Baran

2008

La Houille Blanche

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Le débit élément clé de la vie des cours d'eau : bilan des altérations et des possibilités de restauration. The flow regime : a key 'driver' for the health of freshwater ecosystems. Assessment of the alterations and the opportunities for restoration PHILIPPE BARAN Office National de l'Eau et des Milieux Aquatiques. Pôle d'Ecohydraulique appliquée à la restauration physique des cours d'eau.

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The influence of high waters on stream fish populations in regulated rivers

Cited by 3 publications

References 3 publications

Fish, climate and the Gulf Stream: the influence of abiotic factors on the recruitment success of cyprinid fishes in lowland rivers

Fish, climate and the Gulf Stream: the influence of abiotic factors on the recruitment success of cyprinid fishes in lowland rivers

Migration of bream between the main channel and floodplain lakes along the lower River Rhine during the connection phase

Le débit élément clé de la vie des cours d'eau : bilan des altérations et des possibilités de restauration.

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