Influence of temperature and conductivity on the life-history characteristics of a pampean strain of Brachionus plicatilis
In the present work, we provide the first approach about the life-history of Brachionus plicatilis in South America. We tested with laboratory experiments the response of the pampean strain of B. plicatilis for two of its main stressors (conductivity and temperature). We evaluated the effects of eig...
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| Autores principales: | , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2018
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/71492 |
| Aporte de: |
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I19-R120-10915-71492 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Naturales euryhaline rotifer experimental cultures growth rate salinity temperature |
| spellingShingle |
Ciencias Naturales euryhaline rotifer experimental cultures growth rate salinity temperature Ferrando, Noelia Soledad Claps, María Cristina Benítez, Hernán Hugo Gabellone, Néstor Adrián Influence of temperature and conductivity on the life-history characteristics of a pampean strain of Brachionus plicatilis |
| topic_facet |
Ciencias Naturales euryhaline rotifer experimental cultures growth rate salinity temperature |
| description |
In the present work, we provide the first approach about the life-history of Brachionus plicatilis in South America. We tested with laboratory experiments the response of the pampean strain of B. plicatilis for two of its main stressors (conductivity and temperature). We evaluated the effects of eight conductivity values from 1 to 17 mS.cm-1 and two temperatures (15 and 25 °C) to compare its abundance with those obtained in the pampean lotic and lentic environments, where this rotifer is frequent or dominant. The results demonstrated that the increase in population-growth rate and the peak of abundance occurred at the highest temperature and at medium conductivity. Minimum values were obtained at the lowest temperature and conductivities analyzed, but the final density attained was nevertheless similar to those recorded in the pampean environments at the optimum conductivity and during the spring and summer seasons. Males, mictic females, and resting eggs were observed at the minimum and maximum conductivities, revealing the strategy of this species for maintaining dominance in environments with fluctuating salinity. The experiments also indicated the possible behavior of this relevant member of the zooplankton community within a scenario of increasing temperature and salinity related to the climate changes occurring in the pampean region. |
| format |
Articulo Articulo |
| author |
Ferrando, Noelia Soledad Claps, María Cristina Benítez, Hernán Hugo Gabellone, Néstor Adrián |
| author_facet |
Ferrando, Noelia Soledad Claps, María Cristina Benítez, Hernán Hugo Gabellone, Néstor Adrián |
| author_sort |
Ferrando, Noelia Soledad |
| title |
Influence of temperature and conductivity on the life-history characteristics of a pampean strain of Brachionus plicatilis |
| title_short |
Influence of temperature and conductivity on the life-history characteristics of a pampean strain of Brachionus plicatilis |
| title_full |
Influence of temperature and conductivity on the life-history characteristics of a pampean strain of Brachionus plicatilis |
| title_fullStr |
Influence of temperature and conductivity on the life-history characteristics of a pampean strain of Brachionus plicatilis |
| title_full_unstemmed |
Influence of temperature and conductivity on the life-history characteristics of a pampean strain of Brachionus plicatilis |
| title_sort |
influence of temperature and conductivity on the life-history characteristics of a pampean strain of brachionus plicatilis |
| publishDate |
2018 |
| url |
http://sedici.unlp.edu.ar/handle/10915/71492 |
| work_keys_str_mv |
AT ferrandonoeliasoledad influenceoftemperatureandconductivityonthelifehistorycharacteristicsofapampeanstrainofbrachionusplicatilis AT clapsmariacristina influenceoftemperatureandconductivityonthelifehistorycharacteristicsofapampeanstrainofbrachionusplicatilis AT benitezhernanhugo influenceoftemperatureandconductivityonthelifehistorycharacteristicsofapampeanstrainofbrachionusplicatilis AT gabellonenestoradrian influenceoftemperatureandconductivityonthelifehistorycharacteristicsofapampeanstrainofbrachionusplicatilis |
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Repositorios |
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1764820482752774145 |