Variación espacial de la comunidad de macroinvertebrados acuáticos en la zona litoral del humedal costero Santa Rosa, Lima, Perú
Coastal wetlands are sensitive ecosystems of high productivity because of the ecosystem services that they provide, like water purification, flood reduction, protection of marine coasts. In addition, coastal wetlands are places of great biological diversity. The objective of the present study was to...
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Universidad de Costa Rica
2020
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/35233 |
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RBT352332023-11-09T20:01:35Z Spatial variation of the aquatic macroinvertebrates community in the littoral zone of the Santa Rosa coastal wetland, Lima, Peru Variación espacial de la comunidad de macroinvertebrados acuáticos en la zona litoral del humedal costero Santa Rosa, Lima, Perú Castillo Velásquez, Rodolfo Mauricio Huamantinco Araujo, Ana Asunción aquatic insects coastal wetlands diversity environmental integrity peruvian desert insectos acuáticos humedales costeros diversidad integridad ambiental desierto peruano Coastal wetlands are sensitive ecosystems of high productivity because of the ecosystem services that they provide, like water purification, flood reduction, protection of marine coasts. In addition, coastal wetlands are places of great biological diversity. The objective of the present study was to determine the community structure of the benthic macroinvertebrates in relation to the spatial variations in the littoral zone of the Santa Rosa wetland, Lima, Peru. The study was divided into six bimonthly periods from August 2015 to June 2016, we established eight sampling sites: three sites in the main lagoon, two sites in the lagoon arm and two sites in isolated small pools. We carried out the sampling with a hand net of 250μm mesh aperture with 3 replicas for each site. The 8 sites evaluated were environmentally characterized, the physicochemical parameters of the water were recorded for each sampling site and the variations of the water level of the wetland in each sampling campaign were determined through a wooden post with marks in centimeters. We collected a total of 28655 organisms distributed in 76 species. Diptera and Coleoptera were the orders with greatest richness, with 24 and 19 species respectively. The most abundant species were Buenoa sp. (Hemiptera: Notonectidae), Ischnura sp. (Odonata: Coenagrionidae), Chironomus sp. and Goeldichironomus sp. (Diptera: Chironomidae); these four genera represented 62.43% of the total abundance. In the spatial variation, most sites shared the same structure and composition of macroinvertebrates; this was expected because they are connected to the main water body temporarily or permanently, which consequently gives them greater stability and resilience. Only the sites with less depth and extension on the one side and scarce aquatic vegetation and anthropogenic impact on the other side were separated from the general set. Despite the variety of impacts that the wetland suffers, it was observed that the deeper and more vegetated sites are more resilient than the areas exposed to impact and with less water and vegetation. On the other hand, the physicochemical parameters of water at one site (E1) differentiate the community in the absence of impact. Universidad de Costa Rica 2020-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf text/html https://revistas.ucr.ac.cr/index.php/rbt/article/view/35233 10.15517/rbt.v68i1.35233 Revista de Biología Tropical; Vol. 68 No. 1 (2020): Revista de Biología Tropical (Int. J. Trop. Biol.): Continuous publication, January - March 2020; 50–68 Revista de Biología Tropical; Vol. 68 Núm. 1 (2020): Revista de Biología Tropical (Int. J. Trop. Biol.): Publicación continua, Enero - Marzo 2020; 50–68 Revista Biología Tropical; Vol. 68 N.º 1 (2020): Revista de Biología Tropical (Int. J. Trop. Biol.): Continuous publication, January - March 2020; 50–68 2215-2075 0034-7744 10.15517/rbt.v68i1 spa https://revistas.ucr.ac.cr/index.php/rbt/article/view/35233/41207 https://revistas.ucr.ac.cr/index.php/rbt/article/view/35233/41209 Copyright (c) 2020 Rodolfo Mauricio Castillo Velásquez, Ana Asunción Huamantinco Araujo http://creativecommons.org/licenses/by/4.0 |
| institution |
Universidad de Costa Rica |
| collection |
Revista de Biología Tropical |
| language |
spa |
| format |
Online |
| author |
Castillo Velásquez, Rodolfo Mauricio Huamantinco Araujo, Ana Asunción |
| spellingShingle |
Castillo Velásquez, Rodolfo Mauricio Huamantinco Araujo, Ana Asunción Variación espacial de la comunidad de macroinvertebrados acuáticos en la zona litoral del humedal costero Santa Rosa, Lima, Perú |
| author_facet |
Castillo Velásquez, Rodolfo Mauricio Huamantinco Araujo, Ana Asunción |
| author_sort |
Castillo Velásquez, Rodolfo Mauricio |
| description |
Coastal wetlands are sensitive ecosystems of high productivity because of the ecosystem services that they provide, like water purification, flood reduction, protection of marine coasts. In addition, coastal wetlands are places of great biological diversity. The objective of the present study was to determine the community structure of the benthic macroinvertebrates in relation to the spatial variations in the littoral zone of the Santa Rosa wetland, Lima, Peru. The study was divided into six bimonthly periods from August 2015 to June 2016, we established eight sampling sites: three sites in the main lagoon, two sites in the lagoon arm and two sites in isolated small pools. We carried out the sampling with a hand net of 250μm mesh aperture with 3 replicas for each site. The 8 sites evaluated were environmentally characterized, the physicochemical parameters of the water were recorded for each sampling site and the variations of the water level of the wetland in each sampling campaign were determined through a wooden post with marks in centimeters. We collected a total of 28655 organisms distributed in 76 species. Diptera and Coleoptera were the orders with greatest richness, with 24 and 19 species respectively. The most abundant species were Buenoa sp. (Hemiptera: Notonectidae), Ischnura sp. (Odonata: Coenagrionidae), Chironomus sp. and Goeldichironomus sp. (Diptera: Chironomidae); these four genera represented 62.43% of the total abundance. In the spatial variation, most sites shared the same structure and composition of macroinvertebrates; this was expected because they are connected to the main water body temporarily or permanently, which consequently gives them greater stability and resilience. Only the sites with less depth and extension on the one side and scarce aquatic vegetation and anthropogenic impact on the other side were separated from the general set. Despite the variety of impacts that the wetland suffers, it was observed that the deeper and more vegetated sites are more resilient than the areas exposed to impact and with less water and vegetation. On the other hand, the physicochemical parameters of water at one site (E1) differentiate the community in the absence of impact. |
| title |
Variación espacial de la comunidad de macroinvertebrados acuáticos en la zona litoral del humedal costero Santa Rosa, Lima, Perú |
| title_short |
Variación espacial de la comunidad de macroinvertebrados acuáticos en la zona litoral del humedal costero Santa Rosa, Lima, Perú |
| title_full |
Variación espacial de la comunidad de macroinvertebrados acuáticos en la zona litoral del humedal costero Santa Rosa, Lima, Perú |
| title_fullStr |
Variación espacial de la comunidad de macroinvertebrados acuáticos en la zona litoral del humedal costero Santa Rosa, Lima, Perú |
| title_full_unstemmed |
Variación espacial de la comunidad de macroinvertebrados acuáticos en la zona litoral del humedal costero Santa Rosa, Lima, Perú |
| title_sort |
variación espacial de la comunidad de macroinvertebrados acuáticos en la zona litoral del humedal costero santa rosa, lima, perú |
| title_alt |
Spatial variation of the aquatic macroinvertebrates community in the littoral zone of the Santa Rosa coastal wetland, Lima, Peru |
| publisher |
Universidad de Costa Rica |
| publishDate |
2020 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/35233 |
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