Diel periodicity of aquatic macroinvertebrate drift in a coastal stream in northern Venezuela

Mendoza, María Daniela; Montoya, José V.; Pérez, Belkys

doi:10.1080/23766808.2018.1450056

Cited by 6 publications

(4 citation statements)

References 47 publications

(60 reference statements)

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“…However, since only the abundance was significantly different, we consider that our prediction was partially supported. Our results are in agreement with Mendoza et al (2018), in a study that found higher drift density values of aquatic macroinvertebrates at night in Neotropical streams in Venezuela. The fact that the species composition was similar between the diurnal and nocturnal periods might be because some invertebrates have constant drift in both periods (e.g.…”

Section: Discussionsupporting

confidence: 93%

“…In the streams evaluated in the present study, some groups, such as Baetidae, Simuliidae and Chironomidae, may be using this mechanism to control their populations, since they were the most abundant in the drift. Some studies have shown that these groups are very abundant in the drift of lotic environments (Boyero & Bosch, 2002;Callisto & Goulart, 2005;Lobón-Cerviá et al, 2012;Mendoza et al, 2018). For example, Brittain & Eikeland (1988) found that Ephemeroptera, Simuliidae, Plecoptera and Trichoptera were the most abundant aquatic insects in a diel drift evaluation.…”

Section: Discussionmentioning

confidence: 99%

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Diel variation of aquatic insect drift in streams of Southern Brazil

Campos¹,

Rosa²,

Higuti³

et al. 2021

Acta Sci. Biol. Sci.

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Some organisms, such as aquatic insects, are transported from the upstream to downstream region of streams through a process called drift. This process occurs in passive and active ways and can be variable throughout the day, mainly between the nocturnal and diurnal periods. Here, we evaluate the periodicity of the drift of aquatic insects in two streams of the Middle Iguaçu basin, southern region of Brazil. We predicted that the drift of aquatic insects brings the highest richness, diversity and abundance during the nocturnal period, compared to the diurnal period. In addition, we expected that the composition of species is different between these periods. In each stream, aquatic insect sampling was carried out 10 times, for 24 hours, using drift nets. A total of 2,114 aquatic insect specimens were recorded, distributed in 26 families. Of these families, 20 were recorded during the diurnal period and 24 during the nocturnal period. Our results showed an increase in the diversity and abundance of aquatic insect drift in the nocturnal period. However, only abundance was significantly different between the periods. We attribute the higher abundance in nocturnal drift possibly to biological interactions. Thus, nocturnal drift can be a strategy of some aquatic insects to avoid visual predation by other invertebrates and/or vertebrates, in Neotropical streams. We highlight the importance of our study, because it can be used for comparison in surveys of lotic environments that have been impacted by human activity (e.g. by dam construction), which can alter the water flow, and consequently the pattern of insect drift.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Diel variation of aquatic insect drift in streams of Southern Brazil

Campos¹,

Rosa²,

Higuti³

et al. 2021

Acta Sci. Biol. Sci.

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“…Specifically, the average number of drifting macroinvertebrates per day presented in this study ranges from 6.8 million/d to 36.4 million/d for those commonly consumed invertebrate taxa. However, true macroinvertebrate density is likely much higher, given diel periodicities were not considered (Elliot, 1970;Mendoza, Montoya, & Perez, 2018;Müller, 1963;Tanaka, 1960;Waters, 1962Waters, , 1972.…”

Section: Discussionmentioning

confidence: 99%

Macroinvertebrate drift patterns in the Mississippi and Missouri Rivers: Implications for Scaphirhynchus sturgeon conservation efforts

Cogar

Kim

Haupt

et al. 2021

River Research & Apps

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Macroinvertebrates are important prey to various fishes at all life stages and in particular, Scaphirhynchus sturgeon species. Specifically, shovelnose sturgeon and pallid sturgeon survival and growth may be influenced by macroinvertebrate availability.We examined macroinvertebrate catch rates longitudinally (i.e., upstream to downstream), laterally (i.e., across the width of the river), and vertically (i.e., in the water column) to assess spatiotemporal drift patterns. A total of 3,414 samples were collected from April 15 to June 14 in 2018. Overall, 362,000 m 3 of Missouri and Mississippi River water was filtered during sampling, and 72,216 macroinvertebrates were captured. Trichoptera comprised 75% of the total macroinvertebrate drift sampled, while Diptera (9%), Ephemeroptera (13%), and Plecoptera (2%), comprised a much smaller portion. The average number per day of drifting invertebrates (i.e., Diptera, Ephemeroptera, Plecoptera, and Trichoptera) ranged from 6.8 million/d to 36.4 million/d. We found that catch rates of drifting macroinvertebrates differed among site, dates, and position in the water column. Furthermore, of the five a priori models that we developed, the interaction of spatial variables coupled with the temporal variable best describes variability in macroinvertebrate catch rates throughout our study.Efforts to increase macroinvertebrate habitat may provide additional prey resources for Scaphirhynchus sturgeon. Previous studies have demonstrated greater macroinvertebrate diversity and density in unchannelized rivers. The section of river from the Missouri River confluence downstream to the Mosenthein Island complex is unchannelized and may be a good candidate for habitat restoration. Increasing macroinvertebrate abundance and diversity may positively influence Scaphirhynchus sturgeon.

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“…Frequently drift patterns of aquatic macroinvertebrates show a diel cycle, typically with higher drift frequencies during the night (Mendoza, Montoya, & Perez, ; Wright & Burgin, ). These diel cycles might be weakened by flood periods in which the passive component of the drift might increase with the current speed, masking the behavioral component of drift.…”

Section: Introductionmentioning

confidence: 99%

Drift and emergence patterns of nonbiting midges (Chironomidae, Diptera, Insecta) in a subtropical river

Schulz

Rosa

Klein‐Stolz³

2019

Ecological Research

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The passive dispersal of macroinvertebrates suspended in the water column is known as drift. In tropical and subtropical rivers, which show a distinct hydrological cycle with defined flood and dry periods, chironomids may use flood periods for effective downstream dispersal, particularly if drift coincides with emergence, due to lower fish predator efficiency because of increased turbidity and turbulence. If this is true, chironomids should display a seasonal drift and emergence pattern. The abundances in drift of pupae, their exuviae and imagines (PEI) should be higher during the flood periods. Additionally, in response to predator pressure, it should be advantageous to drift, emerge, or both, to take place at night. We investigated drift and emergence patterns of chironomids in the subtropical Sinos River in southern Brazil during two annual cycles in monthly collections with sampling intervals of 3 hr during 24 hr. About 70% percent of all drifting macroinvertebrates were chironomids. Larvae showed a tendency to increase drift with higher stream flow. No relation of larval drift with the day or night period was detected. However, PEI drifted and emerged at significantly higher abundances during increased discharges. This pattern was not related to the period. During high flow, turbidity and turbulence increase. Hence, emergence efficiency may increase by higher survival rates under these conditions, due to reduced predation by visually oriented fish.

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Diel periodicity of aquatic macroinvertebrate drift in a coastal stream in northern Venezuela

Cited by 6 publications

References 47 publications

Diel variation of aquatic insect drift in streams of Southern Brazil

Diel variation of aquatic insect drift in streams of Southern Brazil

Macroinvertebrate drift patterns in the Mississippi and Missouri Rivers: Implications for Scaphirhynchus sturgeon conservation efforts

Drift and emergence patterns of nonbiting midges (Chironomidae, Diptera, Insecta) in a subtropical river

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