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Simulated transport of Scylla serrata zoeae at various loading densities
dc.contributor.author | Quinitio, E. T. | |
dc.contributor.author | Parado-Estepa, F. D. | |
dc.date.accessioned | 2014-01-16T08:47:43Z | |
dc.date.available | 2014-01-16T08:47:43Z | |
dc.date.issued | 2001 | |
dc.identifier.citation | Quinitio, E. T., & Parado-Estepa, F. D. (2001). Simulated transport of Scylla serrata zoeae at various loading densities. Asian Fisheries Science, 14(2), 225-230. | en |
dc.identifier.issn | 0116-6514 | |
dc.identifier.uri | http://hdl.handle.net/10862/1909 | |
dc.description.abstract | Percent mortality of mud crab Scylla serrata zoeae was determined after 6 h of simulated transport at mobile and stationary conditions at loading densities of 10, 20, 30 and 40 x 103 ind-l-1. Mortality was not significantly different among treatments immediately after transport. Surviving zoeae were stocked in basins, fed with Brachionus rotundiformis and mortality was compared 15 h after transport. There was no significant interaction between loading density and condition (mobile and stationary) of transport (P > 0.05). However, larval mortality varied significantly among densities (P < 0.001) regardless of the condition. A density of 10 x 103 ind-l-1 had the lowest mortality (0.56 ± 0.76%) followed by 20 x 103 (1.28 ± 0.39%), 30 x 103 (4.3 ± 0.25%), and 40 x 103 (4.3 ± 0.31%) ind-l-1. In another experiment, the effect of transport duration was determined at a constant loading density of 10 x 103 ind-l-1 in control (not subjected to packing and transport), shaken and unshaken conditions. Zoea mortality did not differ significantly (P > 0.05) after the 6, 9, and 12 h transport. Regardless of the duration, mortality was lowest in the control (0.41 ± 0.05%) compared to those in the shaken (0.99 ± 0.13%) and unshaken (0.79 ± 0.12%) conditions. Likewise, the condition but not the duration of transport affected larval survival at 15 h post-transport. Mortality was lower in the shaken (1.92 ± 0.22%) than in the unshaken condition (2.46 ± 0.17%). Since mortality is low even at 20 x 103 ind-l-1, this can still be used to transport S. serrata zoeae for 6 h. However, loading density should be reduced to 10 x 103 ind-l-1 for transport duration up to 12 h. | en |
dc.language.iso | en | en |
dc.publisher | Asian Fisheries Society | en |
dc.subject | Scylla | en |
dc.title | Simulated transport of Scylla serrata zoeae at various loading densities | en |
dc.type | Article | en |
dc.citation.volume | 14 | |
dc.citation.issue | 2 | |
dc.citation.spage | 225 | |
dc.citation.epage | 230 | |
dc.citation.journalTitle | Asian Fisheries Science | en |
seafdecaqd.library.callnumber | VF SJ 0678 | |
seafdecaqd.databank.controlnumber | 2001-57 | |
dc.subject.asfa | crab culture | en |
dc.subject.asfa | crustacean larvae | en |
dc.subject.asfa | density dependence | en |
dc.subject.asfa | mortality | en |
dc.subject.asfa | stocking density | en |
dc.subject.asfa | survival | en |
dc.subject.asfa | transport | en |
dc.subject.asfa | zoeae | en |
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Journal Articles [1215]
These papers were contributed by Department staff to various national and international journals.