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dc.contributor.authorAya, Frolan
dc.contributor.authorUnida, John Carlo L.
dc.contributor.authorGarcia, Luis Maria
dc.identifier.citationAya, F. A., Unida, J. C. L., & Garcia, L. M. B. (2023). Effect of size grading on growth of yellow Pacific shortfin eel (Anguilla bicolor pacifica). Journal of Fish Biology, 102(5), 1237-1244.en
dc.description.abstractHeterogeneous growth, which is common among farmed fish, can be remedied by size grading. This study focused on whether the size grading process, which is commonly practiced in aquaculture, improves the subsequent growth performance of the Pacific shortfin eel Anguilla bicolor pacifica. Eels [338.70 ± 4.70 mm total length (TL) and 84.93 ± 1.87 g body weight (BW)] were initially reared for 60 days (pre-size grading period) and manually divided into three size groups: small (≤115 g), large (>150 g) and mixed (>115 g but <170 g), all maintained at a density of 5 kg m−3 and reared until day 150 (size grading period). After size grading, mean BW and TL at harvest significantly differed in all eel groups, suggesting growth was size specific. Nonetheless, at day 150, except for biomass, size grading had no significant effect on growth and survival, coefficient of variation of length and weight, and Fulton's condition factor. Large eels had a significantly higher feed intake than mixed or small eels, whereas feed efficiency did not differ among eel groups. Results suggest that size grading promotes size-specific growth but did not improve the overall growth performance of yellow stage of A. bicolor pacifica.en
dc.description.sponsorshipThis study was supported by grant funds from the Japan ASEAN Integration Fund (Br-02-Y2018B) and the Government of Japan-Trust Fund (8300-B-RD-FD0415 and 8300-B-RD-FD0120).en
dc.titleEffect of size grading on growth of yellow Pacific shortfin eel (Anguilla bicolor pacifica)en
dc.citation.journalTitleJournal of Fish Biologyen
dc.subject.asfasize grading (organisms)en
dc.subject.asfaeel cultureen
dc.subject.scientificNameAnguilla bicolor pacificaen
local.subjectAnguilla bicolor pacificaen
local.subjectsize gradingen
local.subjectsize variabilityen
local.subjecttropical eelen

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    These papers were contributed by Department staff to various national and international journals.

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