배스가 국내 호소에 서식하는 붕어 개체군에 미치는 영향
Impact of Largemouth Bass (Micropterus salmoides)on the Population of Korean Native Fish,Crucian Carp (Carassius auratus)
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참고문헌
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초록
Exotic species in aquatic ecosystem generate various problems domestically as well as globally. Largemouth bass (Micropterus salmoides) which is a well-known exotic species globally,acts as a substantial disturbance factor on the native fish communities in Korea due to the high predation pressure and hence designated as a ecologically harmful species by Ministry of Environment. In this study, we investigated the impact of largemouth bass on Korean native fish population,crucian carp (Carassius auratus), to identify responses of the prey fish. Two fish species were collected at seven reservoirs distributed at the Nakdong River catchment area, and changes in lengthfrequency and length-weight relationship (LWR) were analysed depending on existence of largemouth bass. At bass absent sites, ratio of under age 1 year individuals were small, and over age two years were dominant. Conversely, normal length-frequency distribution pattern was identified at bass absent sites. The LWR of crucian carp (fish smaller than total length of 160 mm were only considered as it is frequently consumed by bass predation) was different depending upon bass existence. The value of parameter b at bass absent reservoirs was 2.909, which was smaller than that of bass present reservoirs, 3.100. Our results imply that crucian carp at bass present reservoirs presented a different strategy to survive from predation by bass, through relatively rapid growth. We propose that other native species might have similar growth strategies like crucian carp.
Abstract
Exotic species in aquatic ecosystem generate various problems domestically as well as globally. Largemouth bass (Micropterus salmoides) which is a well-known exotic species globally,acts as a substantial disturbance factor on the native fish communities in Korea due to the high predation pressure and hence designated as a ecologically harmful species by Ministry of Environment. In this study, we investigated the impact of largemouth bass on Korean native fish population,crucian carp (Carassius auratus), to identify responses of the prey fish. Two fish species were collected at seven reservoirs distributed at the Nakdong River catchment area, and changes in lengthfrequency and length-weight relationship (LWR) were analysed depending on existence of largemouth bass. At bass absent sites, ratio of under age 1 year individuals were small, and over age two years were dominant. Conversely, normal length-frequency distribution pattern was identified at bass absent sites. The LWR of crucian carp (fish smaller than total length of 160 mm were only considered as it is frequently consumed by bass predation) was different depending upon bass existence. The value of parameter b at bass absent reservoirs was 2.909, which was smaller than that of bass present reservoirs, 3.100. Our results imply that crucian carp at bass present reservoirs presented a different strategy to survive from predation by bass, through relatively rapid growth. We propose that other native species might have similar growth strategies like crucian carp.
참고문헌 (29)
- Azuma M, "Ecological release in feeding behavior, the case of Bluegills in Japan", Hydrobiologia, 243, pp.269~276 (1992)
- Byeon HK, "Feeding habit of Bluegill, Lepomis macrochirus introduced in Korea", Korean J. Environ. Biol, 15, pp.165~174 (1997)
- Byeon HK, "Feeding habit of Bluegill, Lepomis macrochirus, introduced at lake Paldang", Korean J. Limnol, 30, pp.75~81 (1997)
- Han M, "Species richness of exotic and endangered fishes in Japan’s reservoirs", Environ. Biol. Fish, 83, pp.409~416 (2008)
- Hoyle JA, "The effect of prey morphology and size on handling time in a piscivore, the Largemouth bass (Micropterus salmoides)", Can. J. Zool, 65, pp.1972~1977 (1987)
- Jang MH, "Diet of introduced Largemouth bass in Korean rivers and potential interactions with native fishes", Ecol. Freshwat. Fish, 15, pp.315~320 (2006)
- Studies on the distribution and effect of the exotic fishes in dam reservoir, "Kim DH", Korea Water Resources Corporation, 258~ (1996)
- Kim IS, "Freshwater Fish of Korea" (2002), Kyohak Publishing
- 고명훈, "옥정호에 도입된 배스 Micropterus salmoides의 식성 및 어류상에 미치는 영향", 한국어류학회지, 20(1), pp.36~44 (2008), 한국어류학회
- Lecren ED., "The length-weight relationship and seasonal cycle in gonad weight and condition in the Perch (Perca fluviatilis)", J. Anim. Ecol, 20, pp.201~219 (1951)
- Lee WO, "The Present condition of exotic fishes introduced to the interior of a country", Symposium of Korean J. Ichthyol, pp.128~ (2002)
- Lee WO, "Feeding habits of Bass (Micropterus salmoides) in Paldang and Togyoji", Autumn academic Presentation of Korean J. Ichthyol, pp.123~125 (2005)
- 이완옥, "옥정호와 용담호에 서식하는 배스 Micropterus salmoides의 먹이생물 차이에 관한 연구", 한국어류학회지, 21(3), pp.200~207 (2009), 한국어류학회
- Lima SL, "Behavioral decisions made under the risk of predation, a review and prospectus", Can. J. Zool, 68, pp.619~640 (1990)
- Mcdougall DM, "Ruffe in the great lakes, a threat to north American fisheries", Great Lakes Fishery Commission, Ottawa, ~ (1992)
- Mcphee RJ, "The report of the evaluation of the great lakes fishery commission by bi-national evaluation team, An Analysis of the Economic Contribution of the Great Lakes Sea Lamprey Program", Great Lakes Fishery Commission, ~ (1989)
- Construction of monitoring system and management plan for ecologically harmful species, "Ministry of Environment", Ministry of Environment, ~ (2006)
- The ecosystem influence investigation by the exotic species, "National Institute of Environmental Research.", National Institute of Environmental Research, ~ (1996)
- The environmental policy propelled direction about the exotic species, "Park YH", Korea Environment Institute, ~ (1998)
- Pettersson LB, "The diel activity of crucian carp, Carassius carassius in relation to chemical cues from predators", Environ. Biol. Fish, 61, pp.341~345 (2001)
- Pettersson LB, "Predator recognition and defence strategies in crucian carp, Carassius carassius", Oikos, 88, pp.200~212 (2000)
- Poléo A, "Body morphology of crucian carp, Carassius carassius in lakes with or without piscivorous fish", Ecography, 18, pp.225~229 (1995)
- Smith RJF., "Avoiding and deterring predators, In Behavioural Ecology of Teleost Fishes", pp.163~190 (1997), Oxford Univ. Press
- Son YM, "Feeding habits of main carnivorous fish (Erythroculter erythropterus, Opsariichthys uncirostris and Micropterus salmoides) at lake Paldang", Seowon Univ. Basicscience Laboratory, 15, pp.61~78 (2001)
- 송호복, "한강수계 댐호의 블루길, Lepomis macrochirus 개체군 구조", 한국어류학회지, 24(4), pp.278~286 (2012), 한국어류학회
- Specziár A., "Size-dependent prey selection in piscivorous pikeperch Sander lucioperca and Volga pikeperch Sander volgensis shaped by bimodal prey size distribution", J. Fish Biol, 79, pp.1895~1917 (2011)
- Stabell OB, "Predator-induced phenotypic changes in crucian carp are caused by chemical signals from conspecifics", Environ. Biol. Fish, 49, pp.139~144 (1997)
- Tollrian R, "The evolution of inducible defenses, curent ideas, In The Ecology and Evolution of Inducible Defenses.", pp.306~322 (1999), Princeton Univ. Press
- Warren PH, "Invertebrate predator-prey body size relationships, an explanation for upper triangular food webs and patterns in food web structure", Oecologia, 74, pp.231~235 (1987)