Richness of littoral macroinvertebrate communities in mountain ponds from NW Spain: what factors does it depend on?

“…Specifically, some macroinvertebrate groups are important in the littoral zone, where they are supposed to control the biomass of algae (James et al 2000;Martinez-Sanz et al 2012), recycle detritus Kornijow et al 1995) and provide a critical link in the food chain (Graynoth et al 1986). Species composition and abundance of macroinvertebrates depend on multiple environmental factors (Weatherhead and James 2001).…”

mentioning

confidence: 99%

Hydrological and anthropogenic influence in the Gilgel Gibe I reservoir (Ethiopia) on macroinvertebrate assemblages

Ambelu

Lock

Goethals

2013

Lake and Reservoir Management

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Ambelu A, Lock K, Goethals PLM. 2013. Hydrological and anthropogenic influence in the Gilgel Gibe I reservoir (Ethiopia) on macroinvertebrate assemblages. Lake Reserv Manage. 29:143-150.The Gilgel Gibe reservoir, which was built to fulfill the energy demand and the electricity export ambitions of Ethiopia, was characterized by low macroinvertebrate diversity mainly due to water level fluctuations, trampling of the littoral zone by cattle, nutrient input, and siltation from the catchment flow. The downstream river system was also affected by the dam due to a strongly decreased discharge as the water is diverted to Gilgel Gibe II hydropower plant through a 25 km underground tunnel. The study was based on seasonal macroinvertebrate sampling, water quality analyses, measurement of daily water level fluctuation, and recording of major anthropogenic activities. Hierarchical cluster analysis and canonical correspondence analysis were performed to determine relationships between the macroinvertebrate community composition and the environmental variables in the reservoir. The cluster analysis, Kruskal-Wallis ANOVA, and MANOVA permutation tests, revealed that differences in physicochemical water quality parameters and ecological quality metrics based on macroinvertebrates existed between the samples taken during periods with low, medium, and high water level seasons. Remedial actions could be important at basin and reservoir level to solve the identified problems and to improve the ecological water quality.

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“…They are mainly affected by direct and indirect human impacts, like global climatic change, eutrophication, acidification, nitrification, tourism, hydro-power generation, water abstraction, fish-stocking, and grazing (Catalan et al 2006, Marnezy 2008, Martinez-Sanz et al 2012, Rogora et al 2013. Generally, the severe environmental conditions characterizing these water bodies limit the presence of macroinvertebrates, simplifying their biological assemblages, which remain more complex and diverse along the littorals.…”

Section: Introductionmentioning

confidence: 99%

An historical and geographic data set on the distribution of macroinvertebrates in Italian mountain lakes

Boggero¹,

Garzoli²,

Varini³

2017

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Richness of littoral macroinvertebrate communities in mountain ponds from NW Spain: what factors does it depend on?

Abstract: ABSTRACT

Cited by 28 publications

References 52 publications

Macroinvertebrate assemblages and biodiversity levels: ecological role of constructed wetlands and artificial ponds in a natural park

Macroinvertebrate assemblages and biodiversity levels: ecological role of constructed wetlands and artificial ponds in a natural park

Hydrological and anthropogenic influence in the Gilgel Gibe I reservoir (Ethiopia) on macroinvertebrate assemblages

An historical and geographic data set on the distribution of macroinvertebrates in Italian mountain lakes

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