Influence of peak flow changes on the macroinvertebrate drift downstream of a Brazilian hydroelectric dam

Castro, Diego Marcel Parreira de; Hughes, Robert M.; Callisto, Marcos

doi:10.1590/s1519-69842013000400013

Cited by 21 publications

(21 citation statements)

References 38 publications

(47 reference statements)

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“…Drift is usually greatest when large masses of water are present, which is typical in spring (or at least more common than in summer) (Brittain and Eikeland, 1988;Principe and del Carmen Corigliano, 2006;Baryshev and Veselov, 2007). The dependence of drift on changes in water flow was also demonstrated previously, in analyses of drift in anthropogenic conditions (Castro et al, 2013).…”

Section: Discussionsupporting

confidence: 73%

Early recolonization of a dredged lowland river by dragonflies (Insecta: Odonata)

Buczyński

Zawal

Buczyńska

et al. 2016

Knowl. Manag. Aquat. Ecosyst.

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-The influence of dredging on the dragonfly assemblages of the small regulated lowland River Krąpiel (north-western Poland) was analyzed a short time after the dredging. Dragonfly assemblages were destroyed, but they began to recover rapidly. Many biocoenotic indices reached high values at just six months after the dredging. The recolonization first occurred as a result of larval drift, and then, via dispersion of adult dragonflies. This process took place in conditions different from the prevailing conditions in the period before dredging, in terms of microhabitat availability and physico-chemical conditions. Compared to the previous assemblage, the emerging assemblage was more typical of assemblages found in small, natural running waters. Therefore, dredging (carried out for economic reasons) could be regarded as a process that unintentionally had a positive influence on odonate assemblages. Currently, when most small watercourses are regulated, dredging that is properly planned and controlled has proven to protect the natural fauna. It is worthwhile to apply lessons learned from examples of active fauna protection to what is currently known as "the rotational model" for dredging.Keywords: Odonata / river / dredging / alteration / recolonization Résumé -Recolonisation précoce par des libellules (Insecte : Odonate) d'une rivière de plaine draguée. L'influence du dragage sur les assemblages de libellules de la petite rivière régulée Krąpiel (nordouest de la Pologne) a été analysée peu de temps après le dragage. Les assemblages de libellules ont été détruits, mais ils ont commencé à se rétablir rapidement. De nombreux indices biocénotiques ont atteint des valeurs élevées seulement six mois après le dragage. La recolonisation a d'abord été le résultat de la dérive larvaire, puis celui de la dispersion des libellules adultes. Ce processus s'est déroulé dans des conditions différentes des conditions prévalant dans la période précédant le dragage, en termes de disponibilité de microhabitats et de conditions physico-chimiques. Par rapport à l'assemblage précédent, l'assemblage émergeant était plus typique des assemblages trouvés dans de petites eaux courantes naturelles. Par conséquent, le dragage (effectué pour des raisons économiques) pourrait être considéré comme un processus qui a involontairement eu une influence positive sur les assemblages d'odonates. À l'heure actuelle, lorsque la plupart des petits cours d'eau sont régulés, le dragage convenablement planifié et contrôlé a prouvé qu'il protégeait la faune naturelle. Il serait bon d'appliquer les leçons tirées des exemples de protection active de la faune à ce qu'on appelle actuellement le « modèle de rotation » pour le dragage.

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Section: Discussionsupporting

confidence: 73%

Early recolonization of a dredged lowland river by dragonflies (Insecta: Odonata)

Buczyński

Zawal

Buczyńska

et al. 2016

Knowl. Manag. Aquat. Ecosyst.

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“…Further, we were surprised by high treatment effects of Hydropsychidae , due to its association to the interstices in fast flowing river sections (Petersen, ; Schuhmacher, ). Yet other studies reported correspondingly strong drift responses (Castro et al, ; Gibbins, Vericat, & Batalla, ) as well as reduced abundances in hydropeaking affected river stretches (Céréghino et al, ; De Jalon, Sanchez, & Camargo, ; Novotny, ).…”

Section: Discussionmentioning

confidence: 92%

Macroinvertebrate drift response to hydropeaking: An experimental approach to assess the effect of varying ramping velocities

et al. 2018

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Intermittent storage hydropower production is the only renewable source offering both a sufficient storage potential and a high temporal flexibility in production to ensure grid stability. However, hydropeaking (generation of peak discharges by hydroelectric operation) causes fluctuations in the wetted width, water depth, flow velocity, and bottom shear stress downstream of a hydroelectric facility. River biota are known to be affected by these changes, which leads for example to increased drift. Correspondingly, abundance and biomass of macroinvertebrates are frequently found to be reduced in impacted river stretches. Although there is sufficient evidence for increasing drift proportions due to hydropeaking, only few studies have highlighted the role of the rapidity of flow increase before and flow decrease after a peak event (ramping velocity). Here, we present the outcome of experimental hydropeaking in artificial flumes, mimicking two ramping velocity treatments (T1: 0.5 cm/min, T2: 1 cm/min water table change) in early and late spring (June '14, March '15). Macroinvertebrate drift was significantly higher in treatments as compared with control flumes. Drift proportions peaked during the up‐ramping phase and were slightly lower during the peak discharge phase. Drift proportions of T2 treatments were significantly higher than those of T1 in June but not in March. Our findings suggest that hydropeaking requires thoughtful ramping management, to allow macroinvertebrates to seek for refugia on the stream bottom during the peak event. However, the evidence of daytime‐dependent and seasonal drift patterns also plea for adaptive management, to account for the temporal variability of macroinvertebrate drift.

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“…However, in the tropical zones, most of the studies concentrate on the temporal variability of the aquatic communities as a function of the season in the year (Jacobsen & Encalada, ; Mesa, ; Ríos‐Touma et al, ) without considering flood and drought discharge (i.e., hydrological) thresholds and their impact on aquatic communities. Exceptions hereon are the studies in altered rivers of Castro, Hughes, and Callisto (), Miserendino (), and Herrera and Burneo () that examined the response of macroinvertebrates and Lima et al () and García, Jorde, Habit, Caamaño, and Parra () of fish.…”

Section: Introductionmentioning

confidence: 99%

Hydrological influences on aquatic communities at the mesohabitat scale in high Andean streams of southern Ecuador

et al. 2018

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This study assessed the effects of hydrological events on aquatic communities at the mesohabitat scale (pool, run, and riffle) in the high Andean region. Four headwater sites located in the Zhurucay microcatchment (southern Ecuador), with elevations higher than 3,500 m, were selected and monitored considering in each site a 50‐m‐long reach and within each reach five cross sections. In each of these reaches, 19 sampling campaigns were conducted in the period December 2011–October 2013, collecting macroinvertebrates and physical characteristics. A total of 27 hydrological indices were calculated using the daily flow rate as input. Large peak flow, small peak flow, and low flow (LF) events were defined based on discharge thresholds. Multivariate statistics showed that 14 hydrological indices were significantly related to the aquatic community. Further, the study revealed that (a) peak events produced stronger effects on communities than LF events, (b) the observed effects of LF events were weaker than those encountered in other latitudes, and (c) local benthic communities have more resilience than similar communities studied in other latitudes.

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Influence of peak flow changes on the macroinvertebrate drift downstream of a Brazilian hydroelectric dam

Cited by 21 publications

References 38 publications

Early recolonization of a dredged lowland river by dragonflies (Insecta: Odonata)

Early recolonization of a dredged lowland river by dragonflies (Insecta: Odonata)

Macroinvertebrate drift response to hydropeaking: An experimental approach to assess the effect of varying ramping velocities

Hydrological influences on aquatic communities at the mesohabitat scale in high Andean streams of southern Ecuador

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