Respuesta de la estructura zooplanctónica a cambios físicos y biológicos en una laguna pampásica (laguna Lacombe)
The changes in zooplankton composition at Lacombe Lake during two annual cycles related to environmental (rainfall, hydrometric level, conductivity, transparency and nutrients) and biotic factors (phytoplankton palatability and presence of submerged macrophytes) were analyzed. The shallow lake showe...
| Autores principales: | , , , |
|---|---|
| Formato: | Articulo |
| Lenguaje: | Spanish / Castilian |
| Publicado: |
2014
|
| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/52931 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1862014495819300864 |
|---|---|
| author | Ardohain, Diego Martín Benítez, Hernán Hugo Gabellone, Néstor Adrián Claps, María Cristina |
| author_facet | Ardohain, Diego Martín Benítez, Hernán Hugo Gabellone, Néstor Adrián Claps, María Cristina |
| author_sort | Ardohain, Diego Martín |
| collection | Repositorio Sedici - Comunidad |
| description | The changes in zooplankton composition at Lacombe Lake during two annual cycles related to environmental (rainfall, hydrometric level, conductivity, transparency and nutrients) and biotic factors (phytoplankton palatability and presence of submerged macrophytes) were analyzed. The shallow lake showed alternating periods of turbid and clear water associated with phytoplankton density and occasional colonization of the lake by submerged macrophytes (Potamogeton pectinatus (L.) and Myriophyllum quitense Kunth). The MDS ordination analysis based on environmental data showed a clear separation of clear and turbid water periods but the division became more diffuse when the analysis performed was based on zooplankton species density. The results of SIMPER analysis indicated that the quality (palatable nanoplankton) and quantity of phytoplankton constituted the most important variable in both annual cycles for the period characterization, while pH, chlorophyll a and turbidity were relevant in 2001-2002 period, and hydrometric level, conductivity and transparency in 2005-2006. Some euplanktonic rotifers were relevant during turbid periods (Brachionus caudatus Barrois & Daday, B. havanaensis Rousselet, Filinia longiseta (Ehr.), Keratella lenzi (Hauer), K. tropica (Apstein), Polyarthra vulgaris Carlin) whereas crustaceans achieved their maximum density during clear periods (Notodiaptomus incompositus (Brian), Microcyclops alius (Kiefer), Metacyclops mendocinus (Wierzejski) and Ceriodaphnia cf. dubia). In both annual cycles, the zooplankton maintained similar composition in this seepage shallow lake in spite of the occurrence of contrasting environmental conditions. |
| format | Articulo |
| id | I89-R6-10915-52931 |
| institution | UNLP - Facultad de Arquitectura y Urbanismo |
| institution_str | I-89 |
| language | Spanish / Castilian |
| publishDate | 2014 |
| record_format | dspace |
| repository_str | R-6 |
| spelling | I89-R6-10915-529312026-03-18T18:46:44Z http://sedici.unlp.edu.ar/handle/10915/52931 Respuesta de la estructura zooplanctónica a cambios físicos y biológicos en una laguna pampásica (laguna Lacombe) Ardohain, Diego Martín Benítez, Hernán Hugo Gabellone, Néstor Adrián Claps, María Cristina 2014 2016-05-20T13:18:20Z es Ciencias Naturales zooplankton Pampean shallow lake annual cycles equilibria state The changes in zooplankton composition at Lacombe Lake during two annual cycles related to environmental (rainfall, hydrometric level, conductivity, transparency and nutrients) and biotic factors (phytoplankton palatability and presence of submerged macrophytes) were analyzed. The shallow lake showed alternating periods of turbid and clear water associated with phytoplankton density and occasional colonization of the lake by submerged macrophytes (Potamogeton pectinatus (L.) and Myriophyllum quitense Kunth). The MDS ordination analysis based on environmental data showed a clear separation of clear and turbid water periods but the division became more diffuse when the analysis performed was based on zooplankton species density. The results of SIMPER analysis indicated that the quality (palatable nanoplankton) and quantity of phytoplankton constituted the most important variable in both annual cycles for the period characterization, while pH, chlorophyll a and turbidity were relevant in 2001-2002 period, and hydrometric level, conductivity and transparency in 2005-2006. Some euplanktonic rotifers were relevant during turbid periods (Brachionus caudatus Barrois & Daday, B. havanaensis Rousselet, Filinia longiseta (Ehr.), Keratella lenzi (Hauer), K. tropica (Apstein), Polyarthra vulgaris Carlin) whereas crustaceans achieved their maximum density during clear periods (Notodiaptomus incompositus (Brian), Microcyclops alius (Kiefer), Metacyclops mendocinus (Wierzejski) and Ceriodaphnia cf. dubia). In both annual cycles, the zooplankton maintained similar composition in this seepage shallow lake in spite of the occurrence of contrasting environmental conditions. Facultad de Ciencias Naturales y Museo Articulo Articulo http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) application/pdf 17-26 |
| spellingShingle | Ciencias Naturales zooplankton Pampean shallow lake annual cycles equilibria state Ardohain, Diego Martín Benítez, Hernán Hugo Gabellone, Néstor Adrián Claps, María Cristina Respuesta de la estructura zooplanctónica a cambios físicos y biológicos en una laguna pampásica (laguna Lacombe) |
| title | Respuesta de la estructura zooplanctónica a cambios físicos y biológicos en una laguna pampásica (laguna Lacombe) |
| title_full | Respuesta de la estructura zooplanctónica a cambios físicos y biológicos en una laguna pampásica (laguna Lacombe) |
| title_fullStr | Respuesta de la estructura zooplanctónica a cambios físicos y biológicos en una laguna pampásica (laguna Lacombe) |
| title_full_unstemmed | Respuesta de la estructura zooplanctónica a cambios físicos y biológicos en una laguna pampásica (laguna Lacombe) |
| title_short | Respuesta de la estructura zooplanctónica a cambios físicos y biológicos en una laguna pampásica (laguna Lacombe) |
| title_sort | respuesta de la estructura zooplanctonica a cambios fisicos y biologicos en una laguna pampasica laguna lacombe |
| topic | Ciencias Naturales zooplankton Pampean shallow lake annual cycles equilibria state |
| url | http://sedici.unlp.edu.ar/handle/10915/52931 |
| work_keys_str_mv | AT ardohaindiegomartin respuestadelaestructurazooplanctonicaacambiosfisicosybiologicosenunalagunapampasicalagunalacombe AT benitezhernanhugo respuestadelaestructurazooplanctonicaacambiosfisicosybiologicosenunalagunapampasicalagunalacombe AT gabellonenestoradrian respuestadelaestructurazooplanctonicaacambiosfisicosybiologicosenunalagunapampasicalagunalacombe AT clapsmariacristina respuestadelaestructurazooplanctonicaacambiosfisicosybiologicosenunalagunapampasicalagunalacombe |