한수지 48(6), , 2015 Original Article Korean J Fish Aquat Sci 48(6), ,2015 가막만과여자만의잘피밭에서식하는농어 (Lateolabrax japonicus) 유어의성장및환경과의관계 김진구 * 유정화

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1 한수지 48(6), 9-928, Original Article Korean J Fish Aquat Sci 48(6),9-928, 가막만과여자만의잘피밭에서식하는농어 (Lateolabrax japonicus) 유어의성장및환경과의관계 김진구 * 유정화 1 김정배 2 이원찬 2 김형철 2 문성용 3 김희용 4 부경대학교자원생물학과, 1 유정화해양연구소, 2 국립수산과학원어장환경과, 3 국립수산과학원남동해수산연구소, 4 국립수산과학원남서해수산연구소 Growth of Young Sea Bass Lateolabrax japonicus in the Eelgrass Beds of Gamak and Yeoja Bays in Relation to Environmental Variables Jin-Koo Kim*, Jung-Hwa Ryu 1, Jeong Bae Kim 2, Won-Chan Lee 2, Hyung Chul Kim 2, Seong Yong Moon 3 and Hee Yong Kim 4 Department of Marine Biology, Pukyong National University, Busan, 4813, Korea 1 Ryujunghwa Marine Research Institute, Busan 47173, Korea 2 National Institute of Fisheries Science, Busan, 4683, Korea 3 Southeast Sea Fisheries Research Institute, Tongyeong 38, Korea 4 South Sea Fisheries Research Institute, Yeosu 978, Korea This study aims to reveal the relationship between growth of young sea bass and environmental variables in two adjacent eelgrass beds. Fishes were collected from Gamak Bay (GB) and Yeoja Bay (YB) on the southern coast of Korea from February 6 to February 7 using a dragnet ( m in length and 3 m in width). During the study period, a total of 367 individuals of young sea bass Lateolabrax japonicus were collected from GB (171 inds.) and YB (196 inds.). Significant differences were observed in the occurrence periods and growth patterns of young sea bass, as well as in environmental variables between GB and YB. Young sea bass were collected from April to December in GB, but from April to July in YB. These differences may be associated with differences in eelgrass density, leaf width, and zooplankton density between GB and YB. Key words: Growth, Lateolabrax japonicus, Eelgrass beds, Environmental variable 서론 (Blaxter, 1984). (Russell, 1976; Okiyama, 1988; Richards, 6; Kim et al., 11), (Choi et al., 1998), (Kim and Jeong, 7). (RN8, ), (, ). (Lateolabrax japonicus) (Perciformes), (Moronidae Lateolabracidae) (Kim et al., ; Froese and Pauly, ),., (Lateolabrax maculatus), (Lateolabrax latus) 3 (Kang, ; Kim et al., ). (Hatooka, 13) (Froese and Pauly, ). (Okamura and Amaoka, Korean J Fish Aquat Sci 48(6) 9-928, December This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial Licens ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Received 2 August ; Revised October ; Accepted 16 Decemebr *Corresponding author: Tel: Fax: address: taengko@hanmail.net Copyright The Korean Society of Fisheries and Aquatic Science 9 pissn: , eissn:

2 농어유어의성장 921 4), (Shoji et al., 6), (Hibino et al., 6), (Shoji and Tanaka, 7), (Islam et al., 11), (Fuji et al., 14). (Choi et al., 1998), (Kang et al., 2), (Han et al., 3), (Kang et al., 4), (Huh et al., 9). Choi et al. (1998), 11 4 (Choi et al., 1998), (Kang et al., 2; Kim et al., 1)., (Kang, ). m, (KORDI, 199; MOMAF, 1). (Deegan et al., 2; Kwak et al., 6; Kim et al., 9; Ryu et al., 11). Kim et al. (9)...,,,,. 채집 재료및방법 (-7 2 ) 2 ( ) (Fig. 1) ( m, 3 m, m) 3. % 7%. 분류 (Kang, ) 36, (PKU ) 34 43' '' 34 4' '' 34 37' '' (SOFTEX HA-, Softex, Tokyo, Japan) 36. 성장 ' '', (6 ). 해양환경 (,,, ) (,, DO,, +,, ) 1. SPSS ver. 12. Mann-Whitney U test. 해양환경특성 수온, 염분, 용존산소 (Fig. 2) ' '' ' '' ' '' 127 4' '' Fig. 1. Map showing the studying area of Yeoja and Gamak bays in the southern coast of Korea. 결과 (12 )-27.9 (8 ) ( ), 8.3 (12 )-26.3 (8 ) ( ). 2.7 (7 )-33.4 psu (4 ) ( psu), 27.7 (7 )-33.6 psu (4 ) ( psu). 6.2 (6 )-11.7 mg/l (12 ) ( mg/l),.9 (6 )-12.2 mg/l (7 ) ( mg/l)., 4-7,

3 922 김진구ㆍ유정화ㆍ김정배ㆍ이원찬ㆍ김형철ㆍ문성용ㆍ김희용 Fig. 2. Monthly variation in the sea water temperature (A), salinity (B) and dissolved oxygen (C) from Yeoja and Gamak bays between April and December, 6., (U=6.,.,., P>.). 영양염류 (Fig. 3) (4 )-1.6 M (11 ) (.7. M),.2 (4 )-1.1 M ( ) (.6.3 M)..8 (9 )-2.1 M (11 ) ( M),. (4 )-14.2 M (8 ) (6.2.6 M)..6 (4 )-.2 M (6 ) ( M),. (4 )-.3 M (8 ) ( M). 7.1 (12 )-68.1 M (6 ) ( M), 4.3 (12 )-71.7 M (7 ) ( M)., 4-7, +,,, (U=6., 4., 7., 6., P>.). 잘피의밀도, 생체량 (Fig. 4) 및생물특성 (Fig. ) ( )-3.2 shoot m -2 (4 ) ( shoot m -2 ), 9.2 ( ) shoot m -2 (4 ) ( shoot m -2 )., 4-7 (U=1., P=.43)., 87.2 (12 )-72.6 g DW m -2 (6 ) ( g DW m -2 ), (12 ) g DW m -2 (4 ) ( g DW m -2 ) (11 )-.9 (12 ) (.1. ), 4.8 (9 )-6.3 (4 ) (.3. ) (9 ) cm ( ) ( cm), 7.2 (9 )-143 cm (6 ) ( cm). 7. ( )-. mm (6 ) ( mm), 9.8 ( )-12. mm (8 ) (.9 1. mm) (9 ) cm ( ) ( cm),.8 (9 ) cm (6 ) ( cm)., (U=., P=.28). 동물플랑크톤 (Fig. 6) ,27 (12 )-22,1 /m 2 ( ) (,86 6,363 / m 2 ), 947 (12 )-18,279 /m 2 (7 ) (,96,763 /m 2 )., (22,1 /m 2 ) (3,1 /m 2 ), 7 (18,279 /m 2 ) (3,28 /m 2 ). 농어유어의특성 전장변동

4 농어유어의성장 923 Fig. 3. Monthly variation in the phosphate (A), nitrite+nitrate (B), ammonium (C) and silicate (D) from Yeoja and Gamak bays between April and December, 6. Circles and vertical bars indicate means and standard deviations. Fig. 4. Monthly variation in the density (A) and biomass (B) of Zastera marina from Yeoja and Gamak bays between April and December, 6. Circles and vertical bars indicate means and standard deviations. (Fig. 7) ( ) cm cm, cm

5 924 김진구ㆍ유정화ㆍ김정배ㆍ이원찬ㆍ김형철ㆍ문성용ㆍ김희용 Fig.. Monthly variation in the number leaf (A), shoot length (B), width of leaf (C) and length of leaf (D) of Zastera marina from Yeoja and Gamak bays between April and December, 6. Circles and vertical bars indicate means and standard deviations. Fig. 6. Variation in the number of zooplankton from Yeoja and Gamak bays between April and December, cm cm (Fig. 7)., cm 2 Fig. 7. Variation in the total length of young sea bass Lateolabrax japonicus from Yeoja and Gamak bays between April and July, 6. Circles and vertical bars indicate means and standard deviations. 3.4 cm, cm cm cm

6 농어유어의성장 92 Table 1. Collection data of young Lateolabrax japonicus collected from Yeoja and Gamak Bays, Korea in 6 Date Month/day April/28 33 May/12 8 May/2 31 June/8 16 June/22 July/13 19, cm, cm (Fig. 7). 개체수변동 Yeoja Bay Gamak Bay No. of Total length No. of Total length specimens (cm) specimens (cm) (2.2) (1.) (3.8).-8. (7.) (11.4) (13.) (Table 1; Fig. 8A), (Table 1; Fig. 8B). 4 33, 9 3.7, 8 ( 34 ), 6 13 ( 9 ) 4. 7, 22, July/27 16 August/ September/28 October/ November/27 4 December/ (2.1) (2.2) (3.4) (3.9) (.1) (7.2) (.4) (12.2) (.1) (16.) (17.1) (.9) 고찰 ( ) 4-7 (4 ), 4-12 (9 ). 8 8,. 8 (27.9 ) 8 (26.3 ) , (Kang et al., 4).,.,, (Okamura and Amaoka, 4). 8., Han et al. (3) psu., ( psu, see Fig. 2B), 12.., 2,, 2 (Kang et al., 2), (Fig. 8)., 6. 1), 2) (Fig. 4A),. (Fig. 4B), (Fig. C).,., (,

7 926 김진구ㆍ유정화ㆍ김정배ㆍ이원찬ㆍ김형철ㆍ문성용ㆍ김희용 A Frequency 28, Apr. 12, May 2, May 8, Jun. 22, Jun. 13, Jul. 27, Jul. 31, Aug. 28, Sep. 24, Oct 27, Nov. 21, Dec. B Frequency 28, Apr. 12, May 2, May 8, Jun. 22, Jun. 13, Jul. 27, Jul. 31, Aug. 28, Sep. 24, Oct 27, Nov. 21, Dec. Total length (cm) Total length (cm) Fig. 8. Length frequency distribution of young sea bass Lateolabrax japonicus from Yeoja bay (A) and Gamak bay (B) between April and December, 6.,,, ).,,., 7 (Fig. 6) 6 ( ) 7 ( ). (Fig. 2), (Fig. 3),,,. (Lee and Youn, ), a,.,,. Shoji et al. (6) 1, 2.

8 농어유어의성장 927 Shoji et al. (6)., 8 cm (Hibino et al., 6), 8- cm (68.%) (23.7%), -cm (43.%) (19.9%) (Huh et al., 9) cm., cm. Huh et al. (9) cm. (, Heptacarpus pandaloides ) (Personal observation). (detritus) (Thayer et al., 1984). 26,, (Crangon affinis), (Eualus leptognathus), (Latreutes acicularis) (Huh and An, 1997).,,.,. 사사 ( : ). References Blaxter JHS Ontogeny, systematics and fisheries. In: Moser HG (ed). Ontogeny and Systematics of Fishes. The American Society of Ichthyologists and Herpetologists, Lawrence, USA, Choi Y, Kim HS and Ryu BS On the growth and stomach contents of young seabass, Lateolabrax japonicus in Kunsan coast, Korea. Fish Sci Res 14, Deegan LA, Wright A, Ayvazian SG, Finn JT, Golden H, Merson RR and Harrison J. 2. Nitrogen loading alters seagrass ecosystem structure and support of higher trophic levels. Aquatic Conservation: Mar Freshew Ecosyst 12, Froese R and Pauly D. Editors.. FishBase. World Wide Web electronic publication. www. fishbase.org, version. Fuji T, Kasai A, Ueno M and Yamashita Y. 14. Growth and migration patterns of juvenile temperate seabass Lateolabrax japonicus in the Yura River estuary, Japan-combination of stable isotope ratio and otolith microstructure analyses. Environ Biol Fish 97, s Han HK, Kang DY, Jun CY and Chang YJ. 3. Effect of salinity change on physiological response and growth of yearling sea bass, Lateolabrax japonicus. J Aquaculture 16, Hatooka K. 13. Lateolabracidae. In: Nakabo T (ed). Fishes of Japan with pictorial keys to the species, third edition. Tokai Univ Press, Hadano, JP, 748. Hibino M, Ohta T, Isoda T, Nakayma K and Tanaka M. 6. Diel and tidal changes in the distribution and feeding habits of Japanese temperate bass Lateolabrax japonicus juveniles in the surf zone of Ariake Bay. Ichthyol Res 3, Huh SH and An YR Seasonal variation of shrimp (Crustacea: Decapoda) community in the eelgrass (Zostera marina) bed in Kwangyang Bay, Korea. J Korean Fish Soc 3, Huh SH, Park JM, Park SC, Jeong DS, Park CI and Baeck GW. 9. Feeding habits of Lateolabrax japonicus in the coastal waters off Dolsan-do, Yeosu. Korean J Ichthyol 21, Islam S, Yamashita Y and Tanaka M. 11. A review on the early life history and ecology of Japanese sea bass and implication for recruitment. Environ Biol Fish 91, dx.doi.org/.7/s y. Kang CB.. Taxonomical studies on the genus Lateolabrax (Pisces, Perciformes) from the Korean waters. PhD Thesis. Pukyong Nat l Univ, Busan, KR. Kang DY, Han HK and Baek HJ. 2. Monthly gonadal and sex hormonal changes of indoor-reared seabass, Lateolabrax japonicus during annual reproductive cycle. J Korean Fish Soc 3, Kang DY, Han HK and Jun CY. 4. Influence of water temperature on growth of yearling sea bass, Lateolabrax japonicus in indoor tank. J Aquaculture 17, Kim IS, Choi Y, Lee CR, Lee YJ, Kim BJ and Kim JK.. Illustrated Book of Korean Fishes. Gyohaksa, Seoul, Korea. Kim JB, Ryu JH and Kim JK. 9. Comparative analysis of fish community structure between eelgrass (Zostera marina L.) beds and an adjacent unvegetated area in southern Korea. J Fish Sci Technol 12, Kim JK and Jeong SJ. 7. Growth estimation of -aged blue

9 928 김진구ㆍ유정화ㆍ김정배ㆍ이원찬ㆍ김형철ㆍ문성용ㆍ김희용 spot mudskipper Boleophthalmus pectinirostris using length frequency data. J Korean Fish Soc 4, -2. Kim JK, Ryu JH, Kim S, Lee DW, Choi KH, Oh TY, Hwang KS, Choi JH, Kim JN, Kwun HJ, Ji HS and Oh JN. 11. An identification guide for fish eggs, larvae and juveniles of Korea. Hanguel Graphics Pub, Busan, Korea. Kim SY, Bang IC, Rho YG and Kim JH. 1. Studies on sexual maturation of spotted sea bass, Lateolabrax maculatus. J Korean Fish Soc 34, KORDI (Korea Ocean Research Development Institute) Complex investigation study of the southwestern coast of Korea (II). 2 pp. Kwak SN, GW Baeck and SH Huh. 6. Comparisons of fish assemblages with eelgrass bed and adjacent unvegetated habitat in Jindong Bay. Korean J Ichthyol 18, Lee JH and Youn SM.. Water quality and phytoplankton communities in Yeoja Bay of Korea. Algae, MOMAF (Ministry of Maritime Affairs and Fisheries). 1. Studies on establishment of acting plan for environmental management area. 27 pp. Okamura O and Amaoka K. 4. Sea fishes of Japan. Tama-kei Pub, Tokyo, Japan. Okiyama M An atlas of the early stage fishes in Japan. Tokai University Press, Tokyo, Japan. Richards WJ. 6. Gonostomatidae: Bristlemouths. In: Early stages of Atlantic Fishes: An Identification Guide for the Western Central North Atlantic. Richards WJ, ed. CRC Press, Boca Raton, FL, U.S. Russell FS The eggs and planktonic stages of British marine fishes. Academic Press, London, U.K. Ryu JH, Kim JB and Kim JK. 11. Temporal and spatial variation in fish larvae in Gamak Bay and Yeoja Bay, south sea of Korea. Fish Aqua Sci 14, KFAS.11.. Shoji J and Tanak M. 7. Density-dependence in post-recruit Japanese seaperch Lateolabrax japonicus in the Chikugo River, Japan. Mar Ecol Prog Ser 334, org/.334/meps3342. Shoji J, Ohta T and Tanaka M. 6. Effects of river flow on larval growth and survival of Japanese seaperch Lateolabrax japonicus (Pisces) in the Chikugo River estuary, upper Ariake Bay. J Fish Biol 69, org/.1111/j x. Thayer GW, Bjorndal KA, Ogden JC, Williams SL and Zieman JC Role of lager hervivores in seagrass communities. Estuaries 7,

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03이경미(237~248)ok The recent (2001-2010) changes on temperature and precipitation related to normals (1971-2000) in Korea* Kyoungmi Lee** Hee-Jeong Baek*** ChunHo Cho**** Won-Tae Kwon*****. 61 (1971~2000) 10 (2001~2010).