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The length-weight relationship, food habits and condition factor of wild juvenile milkfish in Sri Lanka

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Date
1986
Author
Bagarinao, Teodora
Thayaparan, K.
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103
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Abstract
Wild juvenile milkfish (Chanos chanos) were obtained from Negombo lagoon in September 1984. Thirty-one specimens (92–186 mm FL) had a fork length-body weight relationship of log W = −5.6083 + 3.2598 log L. These fish were caught in the early morning and had empty guts. The mean condition factor (K) was 8.7. The intestine length to fork length ratio (I) was 3.7. Two large specimens (245 mm and 340 mm FL) caught around mid-day from the ocean off Negombo had full guts. Food was mostly blue-green algae, diatoms and detritus, with a number of copepods and nematodes. These fish had K values of 11.7 and 13.6 and I values of 8.1 and 8.5. The age and the month of spawning of these fish were back-calculated using known milkfish growth rates. It seems that in Sri Lanka, milkfish spawn from January to at least November.
Description
Contribution No. 174 of the SEAFDEC Aquaculture Department.
URI
http://hdl.handle.net/10862/1059
Suggested Citation
Bagarinao, T., & Thayaparan, K. (1986). The length-weight relationship, food habits and condition factor of wild juvenile milkfish in Sri Lanka. Aquaculture, 55(3), 241-246.
DOI
10.1016/0044-8486(86)90119-5
Subject
Age at recruitment ASFA; Coastal lagoons ASFA; condition factor ASFA; fish culture ASFA; live feeds ASFA; growth ASFA; juveniles ASFA; length-weight relationships ASFA; seed (aquaculture) ASFA; spawning ASFA; Chanos chanos AGROVOC; Sri Lanka, Negombo Lagoon; Sri Lanka AGROVOC
Taxonomic term
Chanos chanos GBIF
Collections
  • AQD Journal Articles [1178]

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