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Quality assessment of newly hatched mud crab, Scylla serrata, larvae

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Date
2018
Author
Quinitio, Emilia T. ORCID
dela Cruz-Huervana, Joana Joy
Parado-Estepa, Fe D.
Page views
1,836
ASFA keyword
aquatic crustaceans ASFA
food availability ASFA
marine environment ASFA
containers ASFA
starvation ASFA
evaluation ASFA
seed production ASFA
juveniles ASFA
larvae ASFA
quality control ASFA
tests ASFA
hatching ASFA
quality ASFA
hatcheries ASFA
sea water ASFA
zoeae ASFA
stress ASFA
tanks ASFA
AGROVOC keyword
Scylla serrata AGROVOC
formaldehyde AGROVOC
formalin AGROVOC
Larval quality
Mud crab hatchery
Taxonomic term
Scylla serrata GBIF
Metadata
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Abstract
Starvation and exposure to formalin were investigated as possible stress tests for evaluating the quality of mud crab, Scylla serrata, larvae. For the starvation stress test, newly hatched zoeae stocked in 150-ml containers were either starved or fed rotifers. Similarly, newly hatched zoeae were stocked in containers with seawater of 0 (control), 20, 30 and 40 mg/L formalin for the formalin stress test. The zoeae from the same batches were used for seed production to monitor their performance and validate the results of stress tests. Starvation was found to be unsuitable for larval quality evaluation. However, the impact of initial food deprivation on the newly hatched larvae indicates that feeding immediately after hatching is necessary for mud crab larvae. Exposure of larvae to 40 mg/L formalin for 3 hr appeared to be a reliable and practical method for larval quality assessment as the survival of larvae in the mass production tanks validated the classification of good and poor quality batches in the stress tests. On this basis, a hatchery operator can decide which batch should be cultured further. Finally, there appears to be a link between the quality of larvae and the performance at the megalopa and early juvenile crabs.
URI
http://hdl.handle.net/10862/3154
Suggested Citation
Quinitio, E. T., dela Cruz-Huervana, J. J., & Parado-Estepa, F. D. (2018). Quality assessment of newly hatched mud crab, Scylla serrata, larvae. Aquaculture Research, 49(1), 75-80. https://doi.org/10.1111/are.13434 
DOI
10.1111/are.13434
Type
Article
ISSN
1355-557X; 1365-2109
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  • Journal Articles [1201]

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