Title of article
Light Intensity Requirements for Feeding Behaviour by the Brown-marbled Grouper, Epinephelus fuscoguttatus
Author/Authors
MUKAI, YUKINORI International Islamic University Malaysia - Kulliyyah of Science - Institute of Oceanography and Maritime Studies (Inocem ), Malaysia , LEONG, SENG LIM Universiti Malaysia Sabah - Borneo Marine Research Institute, Malaysia , Kien, Chee Lu Seed Production Center, Malaysia , ABDUL RASHID, MOHAMED KAMIL International Islamic University Malaysia - Kulliyyah of Science - Institute of Oceanography and Maritime Studies (Inocem ), Malaysia , SAAD, SHAHBUDIN International Islamic University Malaysia - Kulliyyah of Science - Institute of Oceanography and Maritime Studies (Inocem ), Malaysia
From page
1193
To page
1196
Abstract
In this study, we investigated the feeding behavior of the brown-marbled grouper, Epinephelus fuscoguttatus with light intensities ranging over eight orders of magnitude from 0 . 1000 lx to estimate the optimum light intensity for larval rearing. Artemia ingestion rates of E. fuscoguttatus of 36 days and 42 days old larvae were measured in feeding behavior experiments and they were significantly higher with light intensities .10 lx compared with feeding rates at . 1 lx. E. fuscoguttatus larvae also exhibited Artemia ingestion rates in the dark or in dim lighting (0 . 1 lx) that were about 20% of the ingestion rates with ≥ 10 lx.
Keywords
Brown , marbled grouper, Epinephelus fuscoguttatus , feeding behavior , ingestion rates , visual thresholds
Record number
2555495
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