• Fisheries and Aquatic Sciences
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• 제22권2호
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• pp.5.1-5.9
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• 2019

Background: Live fish import may lead to the unintended introduction of pathogens. We examined the monthly distribution of microbial pathogens in ornamental finfish imported into South Korea over a 6-month period. Results: Vibrio alginolyticus was detected in one lemon damsel in June and July; V. vulnificus was detected in one lemon damsel, one caerulean damsel, and one pearl-spot chromis and one ocellaris clownfish in July, April, and May, respectively; Photobacterium damselae was detected in one ocellaris clownfish and one caerulean damsel in June and July, respectively; V. anguillarum was detected in one pearl-spot chromis in February; V. harveyi was detected in one ocellaris clownfish and two mandarin fish in February and April, respectively; Yersinia ruckeri was detected in a pearlscale goldfish group in June and July and in two colored carp groups in July; and Lactococcus garvieae was detected in a lemon damsel group and a sutchi catfish group in July and May, respectively. European catfish virus, the only viral pathogen detected, was found in two sutchi catfish groups in May. Conclusion: This study is the first to identify pathogenic species and the presence or absence of pathogens (non-quarantine diseases) in imported ornamental finfish. These results demonstrate that various pathogens with the potential to harm indigenous fish populations can accompany ornamental finfish imported into South Korea.

• 한국생명과학회:학술대회논문집
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• 한국생명과학회 2005년도 제45회 학술심포지움 및 추계학술대회
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• pp.18-19
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• 2005

• 한국양식학회:학술대회논문집
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• 한국양식학회 2002년도 한일 일한 증양식 심포지엄 요약집
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• pp.16-17
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• 2002

• 한국양식학회:학술대회논문집
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• 한국양식학회 2002년도 한일 일한 증양식 심포지엄 요약집
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• pp.27-29
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• 2002

• 한국양식학회:학술대회논문집
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• 한국양식학회 2002년도 한일 일한 증양식 심포지엄 요약집
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• pp.37-37
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• 2002

• 해양환경안전학회지
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• 제18권6호
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• pp.536-544
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• 2012

지속적인 양식활동과 어장환경 보호를 위해서는 연안해역과 양식어종마다 각기 다른 연안생태계의 물질순환에 대한 연구가 필요하며, 양식장아래 퇴적물-수층 경계면의 침강 용출 플럭스에 관한 정확한 산정이 중요하다. 이에 관한 연구방법 중 벤틱 챔버를 이용한 현장배양법과 코아 채니를 이용한 실내배양실험법으로 퇴적물 산소요구량과 용존무기질소 용출 플럭스를 비교하여 보았다. 통영 어류 가두리양식장, 여수 어류 가두리양식장, 완도 전복양식장에 대하여, 퇴적물 산소요구량을 측정하여본 결과, 현장배양법은 116, 34, $31\;mmol\;O_2\;m^{-2}\;d^{-1}$, 실내배양법은 52, 17, $15\;mmol\;O_2\;m^{-2}\;d^{-1}$이었고, 용존무기질소 용출 플럭스의 경우, 현장배양법은 7.18, 7.98, $1.78\;mmol\;m^{-2}\;d^{-1}$, 실내배양법은 3.33, 3.74, $1.96\;mmol\;m^{-2}\;d^{-1}$로, 현장배양법이 실내배양법보다 약 2배 높게 나타났다. 본 연구는 각 양식장에 따른 물질 플럭스를 살펴봄으로서, 양식장아래 퇴적물-수층 경계면에 대한 두 가지 물질수지 계산 방법의 특성을 비교하였다.

• 한국어류학회지
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• 제17권1호
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• pp.43-48
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• 2005

단계적인 방법에 의해 해수에서 담수로의 염분 하강과 담수에서 해수로의 염분 상승에 대한 잡종 striped bass (Morone chrysops ♀ ${\times}$ M. saxatilis ♂)의 생리적 반응을 조사하였다. 단계적인 염분 변화는 혈중 cortisol 농도의 상승을 동반하지 않았으나, 혈중 glucose 농도는 상승하였다. 혈장의 삼투질 농도와 $Na^+$, $Cl^-$ 농도는 염분상승과 함께 유의하게 증가하였으나, 염분 하강 때는 차이를 보이지 않았다. 이상의 실험 결과들은 잡종 striped bass는 단계적인 염분변화에 매우 효과적으로 적응하고 있음을 보여주고 있으며, 염분 스트레스에 강한 광염성 어종임을 입증하였다.

• 한국양식학회:학술대회논문집
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• 한국양식학회 2003년도 추계학술발표대회 논문요약집
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• pp.19-19
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• 2003

This presentation reviewed the dietary vitamin C requirements in main marine finfish culture in Korea. In experiment I, an II-week feeding trial was conducted to study the effects of the different levels of dietary vitamin C on growth, tissue ascorbic acid concentrations and histopathological changes in parrot fish. Casein and gelatin based diets were formulated to contain 0, 60, 120, 240, 480 and 2000mg L-ascorbic acid (AA)kg diets on Ah equivalent basis in the form of L-ascorbyl-2-monophosphate (AMP), 60 and 240 mg AA/kg diet as L-ascorbic acid. Broken line analysis of weight gain indicated that the dietary vitamin C requirement of parrot fish is l18$\pm$12 mg AA/kg diet in the form of L-ascorbyl-2-monophosphate for maximum growth. In experiment II, a 12-week experiment was conducted to compare L-ascorbyl-2-monophosphate-Ca (AMP-Ca) with L-ascorbyl-2-monophosphate-Na/Ca (AMP-Na/Ca) for supplying the dietary vitamin C for juvenile Korean rockfish Sebastes schlegeli. Fish were fed one of 11 semi-purified diets containing equivalent of 0, 50, 100, 200, 400, and 800 mg ascorbic acid (AA)kg diet in the form of AMP-Ca or AMP-Na/Ca for 12 weeks. Broken line analysis of weight gain indicated that the dietary vitamin C requirement of Korean rockfish is 100 mg AA/kg diet in the form of AMP-Na/Ca, and 117 nag AA/kg diet in the form of AMP-Ca. In experiment III, a 12-week experiment was conducted to study the effects of different dietary levels of vitamin C, L-ascorbyl-2-polyphosphate (ASPP), on growth and tissue vitamin C concentrations in juvenile olive flounder. Fish were fed one of six semi-purified diets containing an equivalent of 0, 25, 50, 75, 150, or 1500 mg ascorbic acid (AA) kg 1 diet in the form of ASPP for 12 weeks. Based on broken line analyses for WG and PER, the optimum dietary levels of vitamin C were 91 and 93 mg AA/kg diet, respectively.

• Asian-Australasian Journal of Animal Sciences
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• 제13권6호
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• pp.861-882
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• 2000

The seed, or grain, of modern cultivars of Lupinus angustifolius, commonly known as Australian sweet lupins (ASL), is an established feed resource for the intensive animal industries of Australia, Japan, Korea and several other countries in Asia and Europe. Since the introduction of ASL to the world marketplace about 25 years ago, researchers in many countries have found them to be a valuable component of the diet of beef and dairy cattle, sheep, pigs, poultry, finfish and crustaceans. The seed of ASL contains ~32% crude protein (CP) (~35% DM basis) and 5% oil. The main storage carbohydrates in the seed are the ${\beta}$-galactans that comprise most of the cell-wall material of the kernel and the cellulose and hemicellulose of the thick seed coats. ASL seeds contain about 40% non-starch polysaccharides (NSP) and a negligible amount of starch. This makes them an excellent ingredient for ruminant diets, as the risk of acidosis is very low. The seed of modern cultivars of domesticated Lupinus species contain negligible amounts of lectins and trypsin inhibitors so they do not require preheating before being used as an ingredient in feeds for monogastric species. They have a high digestibility coefficient for protein, >90% for most species, but a low energy digestibility, ~60%, which is mostly due to the high content of NSP. The low content of methionine (0.22%) and of lysine (1.46%) is typical of the legumes. The lysine availability for pigs is >70%. Lupin kernels contain ~39% CP (~42% DM basis), 6% oil and 30% NSP. They have a higher digestible energy for pigs and finfish and a higher metabolisable energy for poultry than whole seed. Commercial operations rarely achieve complete separation of kernel from hull and it is more likely that the kernel fraction, called splits or meats, will contain ~36% CP. The replacement of soybean meal or peas with ASL in cereal-based diets for most intensively reared animals, birds and fish is possible provided lysine, methionine and digestible energy levels are kept constant. This makes ASL economically competitive in many, but not all, circumstances.

• 한국물환경학회지
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• 제27권3호
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• pp.364-370
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• 2011

Water quality criteria for human health protection are derived based on the human health risk assessment. Water quality criteria in Korean freshwater bodies have been derived according to the equations developed by the US Environmental Protection Agency. The equations include the fish intake parameter, which is very important factor that significantly influences on the criteria derivation. So far, several fish intake values were used in human health risk assessment for water quality standards and effluent standards. However, these values are not consistent and they refer to various sources. Therefore, there is a need to suggest the most appropriate value of fish intake parameter to derive freshwater quality criteria in Korea. In this study, national and international fish intake values were widely collected and evaluated to select the adequate value of fish intake parameter that can be applied in Korea. The USEPA presented fish intake parameter as the 17.5 g/day for general adults and sport fishers and 142.4 g/day for subsistence fishers. In Korean reports, wide range values of 2 to 67.7 g/day were suggested as fish intake value. These values included finfish and shellfish intakes in common but had various habits. This study found that the 52.4 g/day suggested in Korean Exposure Factors Handbook published by the Ministry of Environment in 2007 seemed to be the suitable fish intake parameter to derive the freshwater quality criteria in Korea. The value is based on water corrected intakes of finfish and shellfish present in freshwater and coastal areas. We expect that this report can be useful to select suitable fish intake value in human health risk assessment for establishing freshwater quality standard in Korea.