| Aquaculture Research |
| Volume 44, Number 4 (March 2013) |
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Effects of different light intensities on growth, survival, reproductive and life span characteristics of Artemia urmiana(Günther 1890) |
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Authors: |
Shima Masoudi Asil, Abolghasem Esmaeili Fereidouni, Hossein Ouraji, Khosrow Jani Khalili |
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Author Affiliations: |
| no affiliations available |
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Source: |
Aquaculture Research, Volume 44, Number 4 (March 2013) |
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Page Numbers: |
554 – 566 |
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Available Full Text: |
| Full Text: |
Subscription Required to view full text |
| Format: |
PDF |
| Size: |
unknown |
| Location: |
Publisher’s Site |
| Authentication: |
EBSCOhost EJS |
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Abstract: |
Effects of light intensities on growth, survival, reproductive and life span traits of Artemia urmianawere investigated under laboratory conditions. Nauplii of A. urmianawere hatched and raised in 100 g L-1at four illuminations including 0, 100, 2000 and 5000 lx with 14:10 (light:dark) photoperiod. Mating pairs of mature animals were randomly isolated and reared continuously under similar conditions. The mode and potential of reproduction as well as adult survival shown by each pair were determined throughout their life span. Results showed that percentages of nauplii survival were significantly (P =0.05) different at 5000 and 0 lx (76.50% compared with 26.25%) respectively. Total number of offspring was highly correlated with the light intensities showing increased numbers at higher light intensities compared with darkness or 100 lx. Reproduction mode was relatively affected by various light intensities. Significant (P =0.05) differences were found both in reproductive period and life span at different illuminations. Maximum and minimum offspring productions per reproductive day were found at 5000 and 100 lx respectively. The relative degree of oviparity increased as the illumination decreased (57.92% compared with 22.65% at 0 and 5000 lx respectively). The optimum light intensities appear to be between 2000 lx and 5000 lx in this study. These findings could probably be useful for mass culture of A. urmianain indoor or recirculating systems as well as in outdoor systems for intensive cyst and biomass production. |
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Citation: |
Shima Masoudi Asil, Abolghasem Esmaeili Fereidouni, Hossein Ouraji, Khosrow Jani Khalili . Effects of different light intensities on growth, survival, reproductive and life span characteristics of Artemia urmiana(Günther 1890). Aquaculture Research, Volume 44, Number 4 (March 2013), pp. 554-566, <http://ejournals.ebsco.com/direct.asp?ArticleID=429198886C615FCEE332> |
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URL: |
http://ejournals.ebsco.com/direct.asp?ArticleID=429198886C615FCEE332 |
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