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Optimum light conditions for eggs incubation and larval rearing of brown-marbled grouper Epinephelus fuscoguttatus

Optimum light condition is important factor to reduce fish stress and to increase growth rate under cultivating conditions. There are many studies about light intensities for larval rearing. However, there are only few studies about light wavelengths and light intensities for egg incubation and la...

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Main Authors: Mohammad Seth, Siti Nasihin, Nai, Han Tan, Rosli, Muhammad Khairulanwar, Mukai, Yukinori
Format: Conference or Workshop Item
Language:English
Published: 2013
Subjects:
SH Aquaculture. Fisheries. Angling
Online Access:http://irep.iium.edu.my/33690/1/OPTIMUM_LIGHT_CONDITIONS_FOR_EGGS_INCUBATION_AND_LARVAL_REARING_OF_BROWN-MARBLED_GROUPER_Epinephelusfuscoguttatus.pdf
http://irep.iium.edu.my/33690/
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spelling my.iium.irep.336902014-01-27T02:13:27Z http://irep.iium.edu.my/33690/ Optimum light conditions for eggs incubation and larval rearing of brown-marbled grouper Epinephelus fuscoguttatus Mohammad Seth, Siti Nasihin Nai, Han Tan Rosli, Muhammad Khairulanwar Mukai, Yukinori SH Aquaculture. Fisheries. Angling Optimum light condition is important factor to reduce fish stress and to increase growth rate under cultivating conditions. There are many studies about light intensities for larval rearing. However, there are only few studies about light wavelengths and light intensities for egg incubation and larval rearing. Brown-marbled grouper, Epinephelus fuscoguttatus is an important fish species for aquaculture in Southeast Asia. This study was conducted to examine the optimum light wavelength and intensity for brown-marbled grouper using light emitting diode (LED) lamps. Brown-marbled grouper eggs were obtained from the IIUM hatchery. The eggs were incubated in 40L aquarium in dark rooms, using broad spectrum white light (430-460<λ<500-630 nm) as a control, blue light (450-485 nm), green light (500-560 nm), yellow light (580-605 nm) and red light (610-650 nm). The eggs were incubated under 0.38, 1.7 and 8.7 µmoles/m²/s for each wavelength. Each condition was conducted in triplicate. The temperature was maintained at 27.5-28.5oC. The larval rearing experiments were also conducted under the same conditions. Larvae were sampled to examine the survival rate and growth rate. Nannochlropsis were added from 0 days after hatching (density; 1million cells/ml). Feeding was started at one day old. Results showed that hatching rates had higher tendency under short wavelength lights (blue and green) and survival rates of larval rearing also had higher tendency under short wavelength lights. 2013 Conference or Workshop Item REM application/pdf en http://irep.iium.edu.my/33690/1/OPTIMUM_LIGHT_CONDITIONS_FOR_EGGS_INCUBATION_AND_LARVAL_REARING_OF_BROWN-MARBLED_GROUPER_Epinephelusfuscoguttatus.pdf Mohammad Seth, Siti Nasihin and Nai, Han Tan and Rosli, Muhammad Khairulanwar and Mukai, Yukinori (2013) Optimum light conditions for eggs incubation and larval rearing of brown-marbled grouper Epinephelus fuscoguttatus. In: Conference on Oceanography and Sustainable Marine Production: A Challenge of Managing Marine Resources Under Climate Change (ICOSMaP )2013 , 28-30 October 2013, Kuantan, Malaysia.
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic SH Aquaculture. Fisheries. Angling
spellingShingle SH Aquaculture. Fisheries. Angling
Mohammad Seth, Siti Nasihin
Nai, Han Tan
Rosli, Muhammad Khairulanwar
Mukai, Yukinori
Optimum light conditions for eggs incubation and larval rearing of brown-marbled grouper Epinephelus fuscoguttatus
description Optimum light condition is important factor to reduce fish stress and to increase growth rate under cultivating conditions. There are many studies about light intensities for larval rearing. However, there are only few studies about light wavelengths and light intensities for egg incubation and larval rearing. Brown-marbled grouper, Epinephelus fuscoguttatus is an important fish species for aquaculture in Southeast Asia. This study was conducted to examine the optimum light wavelength and intensity for brown-marbled grouper using light emitting diode (LED) lamps. Brown-marbled grouper eggs were obtained from the IIUM hatchery. The eggs were incubated in 40L aquarium in dark rooms, using broad spectrum white light (430-460<λ<500-630 nm) as a control, blue light (450-485 nm), green light (500-560 nm), yellow light (580-605 nm) and red light (610-650 nm). The eggs were incubated under 0.38, 1.7 and 8.7 µmoles/m²/s for each wavelength. Each condition was conducted in triplicate. The temperature was maintained at 27.5-28.5oC. The larval rearing experiments were also conducted under the same conditions. Larvae were sampled to examine the survival rate and growth rate. Nannochlropsis were added from 0 days after hatching (density; 1million cells/ml). Feeding was started at one day old. Results showed that hatching rates had higher tendency under short wavelength lights (blue and green) and survival rates of larval rearing also had higher tendency under short wavelength lights.
format Conference or Workshop Item
author Mohammad Seth, Siti Nasihin
Nai, Han Tan
Rosli, Muhammad Khairulanwar
Mukai, Yukinori
author_facet Mohammad Seth, Siti Nasihin
Nai, Han Tan
Rosli, Muhammad Khairulanwar
Mukai, Yukinori
author_sort Mohammad Seth, Siti Nasihin
title Optimum light conditions for eggs incubation and larval rearing of brown-marbled grouper Epinephelus fuscoguttatus
title_short Optimum light conditions for eggs incubation and larval rearing of brown-marbled grouper Epinephelus fuscoguttatus
title_full Optimum light conditions for eggs incubation and larval rearing of brown-marbled grouper Epinephelus fuscoguttatus
title_fullStr Optimum light conditions for eggs incubation and larval rearing of brown-marbled grouper Epinephelus fuscoguttatus
title_full_unstemmed Optimum light conditions for eggs incubation and larval rearing of brown-marbled grouper Epinephelus fuscoguttatus
title_sort optimum light conditions for eggs incubation and larval rearing of brown-marbled grouper epinephelus fuscoguttatus
publishDate 2013
url http://irep.iium.edu.my/33690/1/OPTIMUM_LIGHT_CONDITIONS_FOR_EGGS_INCUBATION_AND_LARVAL_REARING_OF_BROWN-MARBLED_GROUPER_Epinephelusfuscoguttatus.pdf
http://irep.iium.edu.my/33690/
_version_ 1643610492769402880
score 13.211869

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