Diversity and biomass of macroinvertebrates in four types of substrates in the lagoon La Virginia, páramo Sumapaz, Colombia
| Autor: | Sandra Gómez, Claudia Salazar, Magnolia Longo |
|---|---|
| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Biota Colombiana, Vol 17, Iss Supl. 2 (2016) |
| Druh dokumentu: | article |
| ISSN: | 0124-5376 2539-200X |
| DOI: | 10.21068/bc.v17iSupl |
| Popis: | For macroinvertebrates inhabiting lentic systems, quantity and availability of various substrates are important for the establishment and development of different assemblages, also, the biome reflects macroinvertebrates system production. In this study, the diversity was estimated from the biomass present in the four substrates: macrophyte (Myriophyllum aquaticum), rock, sediments and organic matter, it was analyzed the seasonal variation of biomass and abundance considering three hydrological periods. It was collected 2.957 individuals grouped in 17 genera and 11 orders. Helobdella was the dominant taxon, it contributes to 90% of the total biomass of the community; Hyalella, Tanytarsus and Centrocorisa were important too. Electric conductivity, sulfates and the water temperature were determined for the biomass. The dominance of macroinvertebrates was higher in macrophyta (0,99). In the rest of the substrates, diversity was larger (ï = 1,5 nats.ind-1) and the evenness minor (ï = 0,24). There are significant differences in the registers of biomass among the substrates but not among the campaigns. In conclusion, macrophyte was the substrate and the habitat most used by macroinvertebrates and it contains more individuals; however, the macrophyte was not the most diversity substrates because, when it was compared with other three substrates the diversity is higher. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|