Seed Production from Pond Cultured Cherry Salmon, e ll, Oncorhynchus masou (Brevoort) ll ll

Size: px

Start display at page:

Download "Seed Production from Pond Cultured Cherry Salmon, e ll, Oncorhynchus masou (Brevoort) ll ll"

Sheryl Cook
5 years ago
Views:

1 J. of Aquaculture Vol. 20(1) : 14-18, 2007 µ Journal of Aquaculture Korean Aquaculture Society ~nr {o n~ t{{, Oncorhynchus masou (Brevoort) nn *, f d p ndn Seed Production from Pond Cultured Cherry Salmon, Oncorhynchus masou (Brevoort) Ki Baik Seong* and Kyung Sik Kim Yeongdong Inland Fisheries Research Institute, National Fisheries Research and Development Institute, Gangwon , Korea Seed production of the cherry salmon, Oncorhynchus masou (Brevoort) were studied in terms of egg development, hatching rate, juvenile growth, smolt duration, smolt rate, and adult growth rates. Fork length and body weight of 0 + juvenile were 9.32±1.19 cm and 9.36±3.50 g for females and 9.07±1.02 cm and 8.57±3.04 g for males, respectively. Body weights of 1 + smolt were 84.09±18.1 g and 86.33±41.2 g for females and males, while body weights of 1 + parr were ±60.9 g and 98.38±39.6 g for females and males, respectively. Monitoring of gonadosomatic index (GSI) confirmed that maturations of both sexes were not synchronous; males achieved highest GSI in September, while females achieved it in October. Keywords: Cherry salmon, Oncorhynchus masou, Seed production, Gonadosomatic index (GSI) ell, Oncorhynchus masou (Brevoort) ll ll l l, l, l ˆk ll 7s n q v p. } l ˆl l 1 }l p 4~5ol smolt l p l p o ˆl }p km k p } p, 4 pv p 3 l pp (ž «, 1980; ¾³, 1982). }l ˆl l t k p smolt l, qp sp p p lp parr-mark v } m l }l q, pp }l (Groot and Margolis, 1991). l p l m ellm l e }l psp pp l(r, 1977) l ell p. p k pp }p vl, yvll yvlp k p pp ( Ç É», 1984). *Corresponding author: kbseong@nfrdi.re.kr pl elll rp m kelp 1981 eql p o p pl v pp, qovp o p veˆ p. elll l smolt el pl ol(¹ )p e p ˆ( ³, 1985), ˆ r l(, 1988), }l pl ell olp smolt ( ³, 1991), q lp p pto ( Â ½, 1992) p l p p, nl }l kee (, 1992), ellp ke e (, 1995, 1997) } l 2~ 3~p e r ˆr v(, 1996) p l p. nl kl n ll qos l p e s ke sp o l 1992 p ell k 20 pe l 15 t p mll l l op m(, 1995). p l 2l ~ l eovl ell o r p. sl n ell o 4p p 14

2 ell, Oncorhynchus masou (Brevoort)p s 15 e}(«á)l k 20 pe l l o (15, 1993~1994) kk }l v e kn ovl o l l ˆn p. y }l n k p, 1997l p~q p 26.8~32.8 cm( 29.8 cm), ~tp 191.7~349.0 g(281.4 g)p, p 25.5~30.0 cm( 28.0 cm), ~tp 152.6~281.5 g(213.2 g) p pn m, 1998l k p~qp 23.4~29.5 cm( 29.6 cm), ~tp 250.4~290.7 g(284.5 g) p, p 24.4~32.5 cm( 29.8 cm), ~tp 160.4~298.5 g(232. 5g)pl. }p r, rp ( «)l p m. } n o dž(3 L)n n mp, r k 3~4 kp p p rpp p o l sk( 10 Ll Nacl 90.4 g, Kcl 2.4 g, Cacl 2 6H 2O 5.1 g) p kl ll 1~2p rkp v p rl k rq q p m. mh PVC o (ø 25 cm, H 65 cm) n m. n(v ) klm qn o p n l l p, tp 1l k 18~20 L sr m. 3~5prl l e klv p mp, p r nml 15 kn n m. m p r pp s m. n m 2 15,000m. h h l ql p 80% pp ql p }k om p pp m. p v ln p e p, lp ~t l p l 1p 6 r, 1p 3 srp m. l op kn ov(1, cm) pn mp, ~tp 100 g pp q p 1p 2~3 (l~tp 3%) m. e lp q s o l s e 30 pp l MS 222(0.1 g/ 1 L) eˆ, rq p ~qp 0.1 cm ov, ~tp rqrn 0.01 g o v r mp, spp o l p r m. 0 + hj 1 + hm, zm zq 0 +lm 1 +lp, p~q, ~t kk o l ol 0 +l, ol 1 +ll s mp d(smolt)p p s m. š y k 1 480m, p 0.54 cm, tp 0.12 g pl. k 1 262m, p 0.54 cm, tp 0.12 g p, 1997p k pp 1998l k tl ~ k pl, tp p ll. }, e Table p k,, rm 36~52 Cp p pp o 1997p rl mp 1998 k p (1999)p l }lp rmm p. kp, p, pp (1999)p l }lp 82.3, 74.2, 65.9%l p, pp n k pp tl rrp p p tl pl m p qp p pl. mh l ), e ie 1997, 1998 l p lvp o s pp Fig. 1l ˆ ellp ol o spp, o 1ow 40~60% r m pp pd v vl p plp, o 3o wp 3ol mp m l~ q l pp tll p krrp spp m. 10owp 10 o p 1o(13ow)v spp m p e ellp p p 1 l s m p. o 16ow 18ow(4ol 6o p) k m p ell Table 1. Results of egg stripping and hatching experiment of Oncorhynchus masou Date of egg stripping No. of eggs Eyed egg rate (%) CWT* of eyed egg ( o C) Hatching rate (%) CWT of hatched fry ( o C) Float rate (%) CWT of floated fingerling ( o C) Oct. 11, , Oct. 15, , *CWT: Cumulative water temperature.

16, e Table 2. Comparison of relative growth for Oncorhynchus masou fingerlings from population (a) Test of slope Population 1997 1998 cherry salmon 1997-0.6344 0.5991 1998 0.6344-0.

9182 cherry salmon 0.8989 0.9182 - p smolt l p ~p v l ddm ˆl p p ml ~ pl p. 1997 1998p spp p p ol pdl p 1998p k p.

) lf g rf 1997, 1998 l p lvp o l~ r s s r }lm o l Zar (1984)p p pn p~q(cm) ~t(g)p qp m(fig. 2). 1997, 1998, }lp qep BW=0.0088FL 3.0893, BW=0.0076FL 3.1248, BW= 0.0093FL 3.0652 ˆ.

3 16, e Table 2. Comparison of relative growth for Oncorhynchus masou fingerlings from population (a) Test of slope Population cherry salmon cherry salmon Fig. 1. Changes of the survival rate of Oncorhynchus masou. (b) Test of intercept Population cherry salmon cherry salmon p smolt l p ~p v l ddm ˆl p p ml ~ pl p p spp p p ol pdl p 1998p k p. ellp spp p o v lp ll p t IHNpd IPNp dl mv kp l l s p p d m 9~11 Cl q p omp o 15~18 o C pp l(k, 1999) qp e k p. ) lf g rf 1997, 1998 l p lvp o l~ r s s r }lm o l Zar (1984)p p pn p~q(cm) ~t(g)p qp m(fig. 2). 1997, 1998, }lp qep BW=0.0088FL , BW=0.0076FL , BW= FL ˆ., lp ql vp p pv p ee Table 2m. n rl 1997, 1998, }ll op p llp, rp rl op p ll. 0 + hj 1 + hm mzm, zq ) 0 + f ftg, tj ol 0 +lp k p~q ~t s m(fig. 3), p~qp k p 9.1~11.0 cml Fig. 2. Relative growth of fork length and body weight for Oncorhynchus masou fingerlings from population. Fig. 3. Composition of fork length (A) and body weight (B) by sex of 0 + Oncorhynchus masou.

1% v p ~tp 9.36±3.50 g, 8.57±3.04 gp ˆp, k p 34% v m. () 1 + f smolt v e, ftg, tj 1999 4ol 1 +lp el ~l smoltp p s m(fig. 4). Smolt k p p~q 18.1~20.0 cml 32.8%, p k mp p~qp 19.85±1.14 cm, 19.95±2.

4 ell, Oncorhynchus masou (Brevoort)p s 17 Fig. 5. Monthly changes of gonadosomatic index (GSI) of Oncorhynchus masou. Fig. 4. Composition of fork length (A) and body weight (B) by sex of 1 + Oncorhynchus masou. 58.8%, p 8.1~10.0 cml 68.2% v p ~q p 9.32±1.19 cm, 9.07±1.02 cmpl. ~t k p 9.1~13.0 gl 35.3%, p 7.1~11.0 gl 53.1% v p ~tp 9.36±3.50 g, 8.57±3.04 gp ˆp, k p 34% v m. () 1 + f smolt v e, ftg, tj ol 1 +lp el ~l smoltp p s m(fig. 4). Smolt k p p~q 18.1~20.0 cml 32.8%, p k mp p~qp 19.85±1.14 cm, 19.95±2.62 cm, ~tp 84.09±18.1 g, 86.33±41.2 g pl k p 91.3% v smolt p ~ k p v p ˆ., parrp p~q k 19.1~21.0 cml 47.0%m 34.9% v m, p~qp 19.60±3.79 cm, 19.81±2.74 cm ~tp ±60.9 g, 98.38±39.6 gp ˆp, k p 21.3% v m. ³(1991)p ll 4o l pl 1 + smoltp 17 cmp l p ll k 3 cm r l l np omp p l p l. () f l o 11ov ell lp e s Fig. 5m. e v k p 7ol 1.10p p r v eq l 9ol 7.53p v mp, 10ol p ˆp, p 7 ol 0.44p p v eq l 9ol 6.56p v mp, 10ol 4.34 ˆ 9o m m p opp s p l ˆ l. e vl p e llp 10~11op p ˆp, k l p p p sp p sl vp rm m p m. ell sp o rk p k p l. o ell(oncorhynchus masou)p ps e l s m ellp kpp 76.7%, 66.3%p, pp 24.3%, 20.2%m, pp 12.8%, 10.4%m. l 22o l p~q ~tp 27.4 cm, ~t g, 28.1 cm, ~ t gp q mp, spp 21.2, 48.6%m. 1997, 1998, }lp qep BW=0.0088FL +lp , BW=0.0076FL , BW=0.0093FL ˆ. 0 k p~q ~tp, ~qp 9.32±1.19 cm, 9.07±1.02 cmpl, ~tp 9.36±3.50 g, 8.57±3.04 gp ˆ k p 34% +lp v m. 1 smolt kp p~qp 19.85±1.14 cm, 19.95±2.62 cmp, ~tp 84.09±18.1 g, 86.33±41.2 gp ˆp k p 91.3% v, parrp k p~qp 19.60±3.79 cm, 19.81±2.74 cm, ~ tp ±60.9 g, 98.38±39.6 gp ˆ,

5 18, e k p 21.3% v m. e v 10ol p ˆp, p 9ol 6.56p p ˆ kp e. p l o(ell ke e, RP AQ-014)p vol p l lld. šx Groot, C. and L. Margolis, Pacific Salmon Life Histories. Published in co-operation with the Government of Canada, Department of Fisheries and Oceans, pp Zar, Jerrold H, Biostatistical analysis, pp ž«, Ç ÔÔÔÕÕÔÔ É ÓžÓÔµŸ. Ç ÔÔÕÔÔÉµ«, 34, Ç É», ÔÔÕÕÔÔ ². pp Â, ½, ÔÔÕÕÔ»Ã ÓÓÓÔº º È. Ç ÔÉ»µ«, 46, 9 16., œ Ä, ½«º, µ½ž, ÔÔÕÕÔÔ ÄÆ¼µŸ. Ç ÔÉ»µ«, 43, ¾³, ÔÔÕÔÔ š. ÓÔº, pp ³Ÿº, ÔÕÕÔÉ² ÓÓÓÔÔÔÕÕÔ¹ Ô² Ó º Ä. Ç É»µ«, 40, ³Ÿº, Ç ÆÁÓÓÓÔÔÔÕÕÔ¹ ÔÔÕÕ ÔÉ. Ç ÔÉ»µ«, 43, p,, p, n, }lp 2~ 3 ~p er ˆr v. v l, 52, , ro, ~, tˆ, }l kee. v l, 91, , p, pv,, l,, n, ellp ke e. v 1994 l l, pp , pv,, p, e, l, el l kee. v 1997 l l, pp k, k, p},, ~o, s, t, kev. o, pp r, l. pv, n, 727 pp. p, }lp s ql l o,, 41 pp. or : o 1p r : o 17p

History and Status of the Chum Salmon Enhancement Program in Korea

The Sea Journal of the Korean Society of Oceanography Vol. 12, No. 2, pp. 73 80, May 2007 [Note] {{ n{ {n r~ * r d p n d n History and Status of the Chum Salmon Enhancement Program in Korea CHAE SUNG LEE*,