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KMID : 0894520060100040271
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Development & Reproduction
2006 Volume.10 No. 4 p.271 ~ p.275
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Early Growth of Cultured Larval Haddock, Melanogrammus aeglefinus
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Park In-Seok
Stewart C. Johnson
Hur Jun-Wook
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Abstract
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The objective of this study was to examine the early growth of haddock, Melanogrammus aeglefinus larvae from a series of reared specimens for provide information to developmental biology and more information on the aspect of aquaculture in the larvae of this species. Larvae were reared in the laboratory and sampled periodically for developmental study until 67 days after hatching. An increase in total length of fish indicated continuous growth, described by the growth expression of the type TL=3.5374e0.0536X(r2=0.8759, where TL is total length and X is at days after hatching) and BW=0.0002e0.1858X(r2=0.8671, where BW is body weight and X is at days after hatching), respectively. Pattern of body depth and pectoral fin length are instantaneous growth which expression of the type BD=0.3545e0.0778X, r2=0.9563(where BD is body depth and X is at days after hatching) for body depth growth and the type PL=0.0111e0.1591X, r2=0.9194(where PL is pectoral fin length and X is at days after hatching) for pectoral fin length growth. The relationship of body depth and total length expressed as BD=0.2397X－0.5735(r2=0.9957, where BD is body depth and X is total length), and pectoral fin length and total length is PL=0.1929X－1.3767(r2=0.9882, where PL is pectoral fin length and X is total length) pectoral fin length against body depth simultaneously recorded for juvenile haddock(PL=0.8117BD－0.9718, r2=0.9814, where PL is pectoral fin length and BD is body depth). Relationship of body depth and body weight was expressed the type of BD=－9.4734X2+19.046X+1.3672, r2=0.941(where BD is body depth and X is body weight), and pectoral fin length and body weight expressed the type of PL=6.379X2+14.023X+0.3774, r2=0.9494(where PL is pectoral fin length and X is body weight). From this point view, growth characteristics of juvenile haddock in this experiment may be useful to establish a successful culture technique for rearing larval haddock.
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KEYWORD
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Haddock, Melanogrammus aeglefinus, Early growth, Aquaculture, Growth expression
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