Efectos de la temperatura sobre el crecimiento individual y formación de zooides en Stylaria lacustris (Linnaeus, 1767) (Oligochaeta, Naididae)

The experiments carried out with S. lacustris showed that the temperature plays a role of importance in the rate of asexual reproduction, as for the number of zooids produced by individual, as well as to the size reached by them. On the other hand, it would regulate the rate of growth and the sexual...

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Autor principal: Armendáriz, Laura Cecilia
Formato: Articulo
Lenguaje:Español
Publicado: 2007
Materias:
Zoología
Cultures
Asexual reproduction
Argentina
Cultivos
Reproducción asexual
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/121737
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-121737
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Zoología
Cultures
Asexual reproduction
Argentina
Cultivos
Reproducción asexual
spellingShingle Zoología
Cultures
Asexual reproduction
Argentina
Cultivos
Reproducción asexual
Armendáriz, Laura Cecilia
Efectos de la temperatura sobre el crecimiento individual y formación de zooides en Stylaria lacustris (Linnaeus, 1767) (Oligochaeta, Naididae)
topic_facet Zoología
Cultures
Asexual reproduction
Argentina
Cultivos
Reproducción asexual
description The experiments carried out with S. lacustris showed that the temperature plays a role of importance in the rate of asexual reproduction, as for the number of zooids produced by individual, as well as to the size reached by them. On the other hand, it would regulate the rate of growth and the sexual reproduction, giving place to the maturity of the individuals when temperature increases. The life time of the immature individuals was estimated in 15 days, being this independent of the temperature used in the cultures. The mature individuals lived on the average 37 days. The survival in S. lacustris was falling gradually, following a curve of type lll. Life expectancy presented its major value at the age of 16 days and stayed approximately constant up to an age of 28 days, after then falled persistently until the last reached age. The individual growth according to von Bertalanffy equation, was estimated for the organisms maintained at 23 ± 2 °C and at 14 ± 1 °C. Those individuals cultivated at higher temperature attained a bigger size, although their rate of growth was smaller than those maintained at 14 °C.
format Articulo
Articulo
author Armendáriz, Laura Cecilia
author_facet Armendáriz, Laura Cecilia
author_sort Armendáriz, Laura Cecilia
title Efectos de la temperatura sobre el crecimiento individual y formación de zooides en Stylaria lacustris (Linnaeus, 1767) (Oligochaeta, Naididae)
title_short Efectos de la temperatura sobre el crecimiento individual y formación de zooides en Stylaria lacustris (Linnaeus, 1767) (Oligochaeta, Naididae)
title_full Efectos de la temperatura sobre el crecimiento individual y formación de zooides en Stylaria lacustris (Linnaeus, 1767) (Oligochaeta, Naididae)
title_fullStr Efectos de la temperatura sobre el crecimiento individual y formación de zooides en Stylaria lacustris (Linnaeus, 1767) (Oligochaeta, Naididae)
title_full_unstemmed Efectos de la temperatura sobre el crecimiento individual y formación de zooides en Stylaria lacustris (Linnaeus, 1767) (Oligochaeta, Naididae)
title_sort efectos de la temperatura sobre el crecimiento individual y formación de zooides en stylaria lacustris (linnaeus, 1767) (oligochaeta, naididae)
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/121737
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AT armendarizlauracecilia temperatureeffectsonindividualgrowthandzooidsformationinstylarialacustrislinnaeus1767oligochaetanaididae
bdutipo_str Repositorios
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