NDLI: Feeding, morphological changes and allometric growth during starvation in miiuy croaker larvae

Content Provider	Springer Nature Link
Author	Shan, Xiu Juan Cao, Liang Huang, Wei Dou, Shuo Zeng
Copyright Year	2008
Abstract	We investigated the effects of the timing of first feeding (larvae in F0, F1, F2, F3 and S were first fed on day 3, 4, 5, 6 days after hatching (DAH) and unfed, respectively) on feeding, morphological changes, survival and growth in miiuy croaker larvae at 24°C. The fed larvae initiated feeding on 3 DAH and reached point of no return (PNR) on 6 DAH. Larvae in F0 and F1 groups survived apparently better than F2 group at the end of the experiment on 36 DAH. High larval mortality occurred from 3 to 7 DAH in all feeding groups, accounting for 40% (F0, F1 and F2 groups) to 90% (F3 and S groups) of the total mortality. Larvae in F0 and F1 groups grew better than F2 group throughout the experiment. Eye diameter, body height, head height and mouth gape of the first feeding larvae were more sensitive to starvation than other morphometrics and could be used as indicators for evaluating their nutritional status. Results indicated that delayed first feeding over 1 day after yolk exhaustion could lead to poor larval survival and growth. To avoid starvation and obtain good growth in culturing, larvae feeding should be initiated within 1 day after yolk exhaustion at 24°C.
Starting Page	121
Ending Page	130
Page Count	10
File Format	PDF
ISSN	03781909
Journal	Environmental Biology of Fishes
Volume Number	86
Issue Number	1
e-ISSN	15735133
Language	English
Publisher	Springer Netherlands
Publisher Date	2008-08-30
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Miichthys miiuy larvae Delayed feeding Morphometrics Growth and survival Nature Conservation Environment Animal Systematics/Taxonomy/Biogeography Zoology Freshwater & Marine Ecology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Ecology, Evolution, Behavior and Systematics

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