Longitudinal changes in macroinvertebrate production in a stream affected by urban and agricultural activities

Shieh, Sen-Her; Ward, J. V.; Kondratieff, Boris C.

doi:10.1127/0003-9136/2003/0157-0483

Cited by 31 publications

(28 citation statements)

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“…This assumption may explain the increase of macroinvertebrate biomass below several point and diffuse sources in a plains stream of north central Colorado (Shieh et al, 2003). In our study, macroinvertebrate biomass did not differ between the two reaches in any sampling date.…”

Section: Effects Of the Point Source On The Benthic Macroinvertebratementioning

confidence: 46%

“…On the other hand, even though the biomass of the two reaches appeared to be equally affected by spates, at the downstream reach macroinvertebrate biomass increased faster than at the upstream reach. The faster recovery of macroinvertebrate biomass below the point source may result from an increase in productivity of nutrient enriched ecosystems as seen in previous studies (Shieh et al, 2003). However, macroinvertebrate biomass of the two reaches seemed to be limited by the same asymptote.…”

Section: Temporal Variabilitymentioning

confidence: 70%

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Point source effects on density, biomass and diversity of benthic macroinvertebrates in a Mediterranean stream

Ortiz¹,

Puig²

2007

River Research & Apps

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We sampled benthic macroinvertebrates above and below a point source effluent in La Tordera stream (NE, Spain) over [2001][2002] to assess the effects of nutrient enrichment on the structure, and taxonomic composition of the benthic macroinvertebrate community. Below the point source, discharge, specific conductance and nutrient concentrations were higher than at the upstream reach, while dissolved oxygen (DO) decreased. Macroinvertebrate density was higher at the downstream reach than at the upstream reach on most dates but the two reaches did not differ in macroinvertebrate biomass.On average, taxa richness at the upstream reach was 20% higher than at the downstream reach. Several taxa, especially mayflies, stoneflies and caddisflies, were present only at the upstream reach. Shannon diversity was similar between the two reaches on 50% of the dates. Ordination analysis clearly separated the samples of the upstream reach from the samples of the downstream reach in the first axis and corroborated the effect of the point source on the benthic community. The two reaches followed a similar temporal pattern with respect to the distribution of taxa along the second axis of the ordination analysis. Higher similarities between the two reaches in taxa composition, densities and biomass after the spates of April and May 2002, suggest that flooding events may act as a reset mechanism for benthic communities and play an important role in stream restoration.

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Section: Effects Of the Point Source On The Benthic Macroinvertebratementioning

confidence: 46%

Section: Temporal Variabilitymentioning

confidence: 70%

Point source effects on density, biomass and diversity of benthic macroinvertebrates in a Mediterranean stream

Ortiz¹,

Puig²

2007

River Research & Apps

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“…Wallace et al 1997;Hall et al 2000;McIntosh et al 2005). Changes in coarse (CPOM) and fine particulate organic matter (FPOM) are attributed to changes in riparian vegetation (Shieh et al 2003;Danger and Robson 2004). Shredding invertebrates transform CPOM to FPOM thus contributing to the primary input of nutrients into the food web (Merritt and Cummins 1996).…”

Section: Discussionmentioning

confidence: 99%

Effects of environmental factors and predation on benthic communities in headwater streams

2010

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Structure and composition of benthic macroinvertebrate assemblages were investigated during three consecutive years in six headwater streams that exhibit a high variation in environmental conditions, habitat structure and predatory pressure. We examined whether the abundance of functional feeding groups could be best predicted by the abundance of predators and some habitat and chemical variables. Mean density and biomass of macroinvertebrate functional feeding groups varied significantly throughout the study area. Stepwise multiple regression analyses revealed that both density and biomass of functional feeding groups was influenced primarily by chemical features of water. Shredder biomass and scraper density were also influenced by habitat features, the abundance of scrapers increasing in deeper localities at lower altitudes and with abundant macrophytes. The abundance of predatory invertebrates was related to the density and biomass of benthic prey. An influence of fish predation on invertebrate communities was not observed in the study streams. The finding that benthic communities in undisturbed headwater streams are mainly affected by water chemistry variables irrespective of fish predation and habitat features clearly highlight the sensitivity of functional feeding groups to changes in chemical features and their role as indicators for bioassessment.

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“…Los organismos se determinaron hasta el nivel de género y se separaron de acuerdo con las clases de tallas registradas (0,1−0,5; 0,6−1,0; 1,1−1,5; 1,6−2,0 y 2,1−2,5 cm). Para los cálculos de la biomasa se usaron 644 individuos, los cuales se secaron en estufa a 60 °C por 24 horas para obtener el peso seco constante y luego se llevaron a la mufla a 500 °C por 2 horas para determinar, por combustión, el peso seco libre de ceniza (PSLC) (Benke y Huryn 2007, Shieh et al 2003. Todos los organismos se pesaron en una balanza analítica…”

Section: Análisis De Muestrasunclassified

Densidad, biomasa y hábitos alimentarios de Anacroneuria Klapálek 1909 (Plecoptera: Perlidae) en un río tropical.

Sierra-Labastidas

Tamaris-Turizo

Picón³

et al. 2018

Actual Biol

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Longitudinal changes in macroinvertebrate production in a stream affected by urban and agricultural activities

Cited by 31 publications

References 0 publications

Point source effects on density, biomass and diversity of benthic macroinvertebrates in a Mediterranean stream

Point source effects on density, biomass and diversity of benthic macroinvertebrates in a Mediterranean stream

Effects of environmental factors and predation on benthic communities in headwater streams

Densidad, biomasa y hábitos alimentarios de Anacroneuria Klapálek 1909 (Plecoptera: Perlidae) en un río tropical.

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