Consulta: subjectFacets:"Light effects"
Registros recuperados: 3
Data/hora: 04/06/2024 09:23:30

Définition d'un modèle d'élevage larvaire intensif pour la daurade Sparus auratus
Provedor de dados: 5
Autores: Ounais-guschemann, Nadia.
This study defines rearing parameters for mass products of 30-day old post larvae. Continuous lighting (600 lux) optimizes the predatory activity and suppresses the feeding rhythm. For 4-5 mm larvae (15 days), food ingestion slows down if the prey concentration in the tank is below 5 rotifers/ml, while there is no such threshold for 6-7 mm larvae (22 days). The rotifer Brachionus plicatilis , between 100 and 200 mu m, is an adequate initial prey, it can be replaced by Artemia salina for 7-8 mm larvae (30 days). It is observed that free amino acids and essential fatty acids contents have a prominent role in larvae growth; docosahexaenoic acid (C22:6n-3) content could be determined. Finally, the development of the swim bladder is facilitated by the renewal...
Tipo: Text
Palavras-chave: Sparus auratus; Pisces; Marine fish; Environmental diseases; Fatty acids; Amino acids; Controlled conditions; Juveniles; Culture tanks; Growth; Light effects; Nutritional requirements; Fish larvae; Syndrome de paroi; Nutrition; Alimentation; Lumière; Inflation primaire de la vessie natatoire; Sparus auratus; Elevage larvaire intensif; Poisson.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/these-1679.pdf

The influence of light on the growth rate of larvae of the brine shrimp, &lt;i&gt;Artemia salina&lt;/i&gt; L.
Provedor de dados: 27
Autores: Sorgeloos, P.
&lt;i&gt;Artemia salina&lt;/i&gt; L. larvae grown in complete darkness showed a significant higher growth rate than those cultured under continuous illumination.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth rate; Larvae; Light effects; Artemia salina.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3458

First report on the triggering effect of light on the hatching mechanism of &lt;i&gt;Artemia salina&lt;/i&gt; dry cysts
Provedor de dados: 27
Autores: Sorgeloos, P.
In the literature, hatching of &lt;i&gt;Artemia salina&lt;/i&gt; L. dry cysts has always been related exclusively to the hydration state of the cysts. Hatching experiments with cysts from different places revealed that light in some way triggers the hatching mechanism.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts; Hatching; Light effects; Artemia salina.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3475