Structure, biomass, and secondary production of benthic macroinvertebrates in subtropical Andean rivers
Abstract Secondary production is the formation of heterotrophic biomass across time, which integrates several important ecological processes that affect the life of organisms, populations, communities and ecosystems, but its study has poor developed in South America. The objectives of this work were...
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| Format: | Article |
| Language: | English |
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Academia Brasileira de Ciências
2023-05-01
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| Series: | Anais da Academia Brasileira de Ciências |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652023000101017&lng=en&tlng=en |
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| author | GUILLERMO EDUARDO HANKEL CAROLINA NIETO FÁTIMA ROMERO MARÍA LOURDES GULTEMIRIAN MARÍA CELINA REYNAGA MARÍA DE LOS Á. TABOADA PAOLA ALEJANDRA R. MARTÍN JOSÉ SEBASTIÁN RODRÍGUEZ VERÓNICA MANZO CARLOS MOLINERI |
| author_facet | GUILLERMO EDUARDO HANKEL CAROLINA NIETO FÁTIMA ROMERO MARÍA LOURDES GULTEMIRIAN MARÍA CELINA REYNAGA MARÍA DE LOS Á. TABOADA PAOLA ALEJANDRA R. MARTÍN JOSÉ SEBASTIÁN RODRÍGUEZ VERÓNICA MANZO CARLOS MOLINERI |
| author_sort | GUILLERMO EDUARDO HANKEL |
| collection | DOAJ |
| description | Abstract Secondary production is the formation of heterotrophic biomass across time, which integrates several important ecological processes that affect the life of organisms, populations, communities and ecosystems, but its study has poor developed in South America. The objectives of this work were to describe the diversity of benthic macroinvertebrate assemblages in terms of abundance and biomass, and to quantify their secondary production for the first time in Andean rivers. A quantitative sampling scheme was implemented, using a Surber sampler, in three forested streams. Physical-chemical variables, nutrients, organic matter and chlorophyll were measured also. The macroinvertebrates were separated and identified mostly at the species level. Each taxon was assigned to a functional feeding group. Secondary production was estimated for 38 taxa, mostly Diptera, Trichoptera, Coleoptera, and Ephemeroptera. The annual production varied from 3769 to 13916 mg dry mass m-2 y-1. Most abundant taxa were also those with higher production, dominated by Ephemeroptera (Baetidae), Trichoptera (Hydropsychidae) and Diptera (Chironomidae and Simuliidae). Density, biomass, and production of collectors and predators were much higher than the other feeding groups. We expect that our results will be useful to evaluate the effects on stream functioning produced by global warming and other anthropogenic disturbances in our region. |
| first_indexed | 2024-03-13T11:05:12Z |
| format | Article |
| id | doaj.art-26f18b09ec7048fb8cc4531be68383aa |
| institution | Directory Open Access Journal |
| issn | 1678-2690 |
| language | English |
| last_indexed | 2024-03-13T11:05:12Z |
| publishDate | 2023-05-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-26f18b09ec7048fb8cc4531be68383aa2023-05-16T07:34:01ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902023-05-0195110.1590/0001-3765202320220095Structure, biomass, and secondary production of benthic macroinvertebrates in subtropical Andean riversGUILLERMO EDUARDO HANKELhttps://orcid.org/0000-0002-6766-8959CAROLINA NIETOhttps://orcid.org/0000-0003-1909-1750FÁTIMA ROMEROhttps://orcid.org/0000-0001-8810-7678MARÍA LOURDES GULTEMIRIANhttps://orcid.org/0000-0002-6215-2793MARÍA CELINA REYNAGAhttps://orcid.org/0000-0001-6987-760XMARÍA DE LOS Á. TABOADAhttps://orcid.org/0000-0002-4618-0540PAOLA ALEJANDRA R. MARTÍNhttps://orcid.org/0000-0003-0012-388XJOSÉ SEBASTIÁN RODRÍGUEZhttps://orcid.org/0000-0002-8917-2882VERÓNICA MANZOhttps://orcid.org/0000-0002-5784-2976CARLOS MOLINERIhttps://orcid.org/0000-0003-2662-624XAbstract Secondary production is the formation of heterotrophic biomass across time, which integrates several important ecological processes that affect the life of organisms, populations, communities and ecosystems, but its study has poor developed in South America. The objectives of this work were to describe the diversity of benthic macroinvertebrate assemblages in terms of abundance and biomass, and to quantify their secondary production for the first time in Andean rivers. A quantitative sampling scheme was implemented, using a Surber sampler, in three forested streams. Physical-chemical variables, nutrients, organic matter and chlorophyll were measured also. The macroinvertebrates were separated and identified mostly at the species level. Each taxon was assigned to a functional feeding group. Secondary production was estimated for 38 taxa, mostly Diptera, Trichoptera, Coleoptera, and Ephemeroptera. The annual production varied from 3769 to 13916 mg dry mass m-2 y-1. Most abundant taxa were also those with higher production, dominated by Ephemeroptera (Baetidae), Trichoptera (Hydropsychidae) and Diptera (Chironomidae and Simuliidae). Density, biomass, and production of collectors and predators were much higher than the other feeding groups. We expect that our results will be useful to evaluate the effects on stream functioning produced by global warming and other anthropogenic disturbances in our region.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652023000101017&lng=en&tlng=enAquatic insectsbody massfunctional feeding groupssecondary productionsize class |
| spellingShingle | GUILLERMO EDUARDO HANKEL CAROLINA NIETO FÁTIMA ROMERO MARÍA LOURDES GULTEMIRIAN MARÍA CELINA REYNAGA MARÍA DE LOS Á. TABOADA PAOLA ALEJANDRA R. MARTÍN JOSÉ SEBASTIÁN RODRÍGUEZ VERÓNICA MANZO CARLOS MOLINERI Structure, biomass, and secondary production of benthic macroinvertebrates in subtropical Andean rivers Anais da Academia Brasileira de Ciências Aquatic insects body mass functional feeding groups secondary production size class |
| title | Structure, biomass, and secondary production of benthic macroinvertebrates in subtropical Andean rivers |
| title_full | Structure, biomass, and secondary production of benthic macroinvertebrates in subtropical Andean rivers |
| title_fullStr | Structure, biomass, and secondary production of benthic macroinvertebrates in subtropical Andean rivers |
| title_full_unstemmed | Structure, biomass, and secondary production of benthic macroinvertebrates in subtropical Andean rivers |
| title_short | Structure, biomass, and secondary production of benthic macroinvertebrates in subtropical Andean rivers |
| title_sort | structure biomass and secondary production of benthic macroinvertebrates in subtropical andean rivers |
| topic | Aquatic insects body mass functional feeding groups secondary production size class |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652023000101017&lng=en&tlng=en |
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