Improved hatchery-rearing techniques for juvenile production of blue swimming crab, Portunus pelagicus (Linnaeus, 1758)
The effects of tank colour, larval stocking density, antibiotic administration and water exchange on survival and moulting of blue swimming crab, Portunus pelagicus, were determined. Circular 4-m3 experimental larval-rearing tanks were used in triplicate for all treatments. White, dark grey, bl...
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| Format: | Article |
| Language: | English |
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Blackwell Publishing Ltd
2012
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| Online Access: | http://ir.unimas.my/id/eprint/16844/ http://ir.unimas.my/id/eprint/16844/1/Improved_hatchery-rearing_techniques_for%28Abstract%29.pdf |
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| author | Mhd, Ikhwanuddin Juariah Hafsya, Mansor Abol-Munafi, Ambok Bolong Shabdin, Mohd Long |
| author_facet | Mhd, Ikhwanuddin Juariah Hafsya, Mansor Abol-Munafi, Ambok Bolong Shabdin, Mohd Long |
| author_sort | Mhd, Ikhwanuddin |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | The effects of tank colour, larval stocking density,
antibiotic administration and water exchange on
survival and moulting of blue swimming crab,
Portunus pelagicus, were determined. Circular 4-m3
experimental larval-rearing tanks were used in
triplicate for all treatments. White, dark grey, blue
and brown were tested as tank background colours.
The stocking densities tested were 10, 20,
40, 60, 80 and 100 larvae L
�1. The effect of oxytetracycline
was estimated by comparing a treatment
with oxytetracycline to a treatment without
oxytetracycline administration. The daily water
exchange rates tested were 0%, 25%, 50% and
100% of the tank volume. In all treatments, the
larvae were fed with Artemia nauplii, rotifers and
encapsulated Spirulina. The highest percentage survival
was observed in the dark-grey tanks when
the stocking density of larvae was 20 larvae L
�1.
No larva reached the juvenile crab size in white
tanks. No significant difference in survival was
found between treated and non-treated larvae with
oxytetracycline when the daily water exchange
rate was more than 50%. |
| first_indexed | 2025-11-15T06:50:58Z |
| format | Article |
| id | unimas-16844 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:50:58Z |
| publishDate | 2012 |
| publisher | Blackwell Publishing Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-168442023-05-29T02:01:37Z http://ir.unimas.my/id/eprint/16844/ Improved hatchery-rearing techniques for juvenile production of blue swimming crab, Portunus pelagicus (Linnaeus, 1758) Mhd, Ikhwanuddin Juariah Hafsya, Mansor Abol-Munafi, Ambok Bolong Shabdin, Mohd Long SH Aquaculture. Fisheries. Angling The effects of tank colour, larval stocking density, antibiotic administration and water exchange on survival and moulting of blue swimming crab, Portunus pelagicus, were determined. Circular 4-m3 experimental larval-rearing tanks were used in triplicate for all treatments. White, dark grey, blue and brown were tested as tank background colours. The stocking densities tested were 10, 20, 40, 60, 80 and 100 larvae L �1. The effect of oxytetracycline was estimated by comparing a treatment with oxytetracycline to a treatment without oxytetracycline administration. The daily water exchange rates tested were 0%, 25%, 50% and 100% of the tank volume. In all treatments, the larvae were fed with Artemia nauplii, rotifers and encapsulated Spirulina. The highest percentage survival was observed in the dark-grey tanks when the stocking density of larvae was 20 larvae L �1. No larva reached the juvenile crab size in white tanks. No significant difference in survival was found between treated and non-treated larvae with oxytetracycline when the daily water exchange rate was more than 50%. Blackwell Publishing Ltd 2012 Article PeerReviewed text en http://ir.unimas.my/id/eprint/16844/1/Improved_hatchery-rearing_techniques_for%28Abstract%29.pdf Mhd, Ikhwanuddin and Juariah Hafsya, Mansor and Abol-Munafi, Ambok Bolong and Shabdin, Mohd Long (2012) Improved hatchery-rearing techniques for juvenile production of blue swimming crab, Portunus pelagicus (Linnaeus, 1758). Aquaculture Research, 43. pp. 1251-1259. ISSN 1355557X https://www.academia.edu/2031951/ 10.1111/j.1365-2109.2011.2929.x |
| spellingShingle | SH Aquaculture. Fisheries. Angling Mhd, Ikhwanuddin Juariah Hafsya, Mansor Abol-Munafi, Ambok Bolong Shabdin, Mohd Long Improved hatchery-rearing techniques for juvenile production of blue swimming crab, Portunus pelagicus (Linnaeus, 1758) |
| title | Improved hatchery-rearing techniques for juvenile
production of blue swimming crab, Portunus pelagicus (Linnaeus, 1758) |
| title_full | Improved hatchery-rearing techniques for juvenile
production of blue swimming crab, Portunus pelagicus (Linnaeus, 1758) |
| title_fullStr | Improved hatchery-rearing techniques for juvenile
production of blue swimming crab, Portunus pelagicus (Linnaeus, 1758) |
| title_full_unstemmed | Improved hatchery-rearing techniques for juvenile
production of blue swimming crab, Portunus pelagicus (Linnaeus, 1758) |
| title_short | Improved hatchery-rearing techniques for juvenile
production of blue swimming crab, Portunus pelagicus (Linnaeus, 1758) |
| title_sort | improved hatchery-rearing techniques for juvenile
production of blue swimming crab, portunus pelagicus (linnaeus, 1758) |
| topic | SH Aquaculture. Fisheries. Angling |
| url | http://ir.unimas.my/id/eprint/16844/ http://ir.unimas.my/id/eprint/16844/ http://ir.unimas.my/id/eprint/16844/ http://ir.unimas.my/id/eprint/16844/1/Improved_hatchery-rearing_techniques_for%28Abstract%29.pdf |