Data/hora: 09/06/2024 09:49:13

Provedor de dados: | 27
País: | Belgium
Título: | Monitoring Biolog patterns and &lt;i&gt;r/K&lt;/i&gt;-strategists in the intensive culture of &lt;i&gt;Artemia&lt;/i&gt; juveniles
Autores: | Verschuere, L.; Dhont, J.; Sorgeloos, P.; Verstraete, W.
Data: | 1997
Ano: | 1997
Palavras-chave: | Artemia.
Resumo: | &lt;i&gt;Artemia&lt;/i&gt; juveniles were cultured under intensive conditions in three series of six tanks at different times. Both plate counts and Biolog GN microtitre plates were used to monitor the microbial community. Repetitions of the &lt;i&gt;Artemia&lt;/i&gt; cultures in time revealed significant differences in Biolog patterns and bacterial counts, showing that normal culture practices, including chlorination of the sea water, does not allow control of the associated microbial community. However, the similarity among the Biolog fingerprints of all 18 tanks as determined by the Pearson correlation coefficient was always high. Both observations together indicate that the microbial community which colonizes the culture tanks seems to be determined by both deterministic factors (e.g. salinity, temperature, oxygen concentration, composition of the feed) and stochastic factors (micro-organisms still present in the sea water after chlorinisation, on the walls of the culture tanks or in the air around the culture tanks). When a high proportion of microbial &lt;i&gt;r&lt;/i&gt;-strategies was present in the water at the beginning of the &lt;i&gt;Artemia&lt;/i&gt; culture, the smallest differences in Biolog patterns among the tanks of one series throughout the culture period were observed. A parallelism between &lt;i&gt;Artemia&lt;/i&gt; rearing success, functional fingerprint of the bacterial community and the proportion of &lt;i&gt;r&lt;/i&gt;-strategists present, was observed. This suggests an important role of the bacterial community in the overall &lt;i&gt;Artemia&lt;/i&gt; rearing success.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2985
Fonte: | %3Ci%3EJ.+Appl.+Microbiol.+83%3C%2Fi%3E%3A+603-612
Fonte: | info:eu-repo/semantics/restrictedAccess