지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
The aim of the present study was to assess the effects of ammonia on physiological responsesin Korean rockfish (Sebastes schlegeli). Interestingly, no mortality were observed when thespecimens (301.1±8.0 g) were exposed to five levels of un-ionized ammonia (NH3) (control, 1, 2, 4,8 mg L-1) for 3 hours. Furthermore, a significantly higher increase in gill Na+/K+-ATPase (NKA)pump activity with was detected due to the ammonia exposure. The activity of the fishes were foundto be 4 and 8 mg L-1 NH3, which was significantly high compared to normal 1 mg L-1 NH3. Althoughammonia exposure had no effect on plasma Cl-, exposure to both 4 and 8 mg L-1 NH3, howeverit led to increase in the plasma Na+, K+ and osmolality levels. Also, prolong ammonia exposurecause increase of plasma cortisol and glucose levels. The increase in glucose was accompaniedby an increase in cortisol. The fish exposed to 4 and 8 mg L-1 NH3 showed significantly higher hematocritthan control group than those exposed to 1 and 2 mg L-1 NH3. The intensity of cell damageincreased with the increase concentration and exposure to ammonia. Furthermore, hyperplasia,separation and epithelial necrosis were also observed in gill tissues. Taken together, the resultsshowed that direction of changes to the investigated parameters can be used to determine the physiologicalresponses of Korean rockfish to ammonia.
목차
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참고문헌 (22)
참고문헌 신청
Alam M / 2006 / Gill ATPase activities of silver perch, Bidyanus bidyanus (Mitchell), and golden perch, Macquaria ambigua (Richardson): effects of environmental salt and ammo
Barton BA / 1987 / Influence of acclimation temperature on interrenal and carbohydrate stress responses in juvenile chinook salmon (Oncorhynchus tshawytscha) / Aquaculture 62
Barton BA / 1991 / Physiological changes in fish from stress in aquaculture with emphasis on the response and effects of corticosteroids / Annu. Rev. Fish. Dis 1 : 3 ~ 26
Benli ACK / 2008 / Sublethal ammonia exposure of Nile tilapia (Oreochromis niloticus L.): effects on gill, liver and kidney histology / Chemosphere 72 : 1355 ~ 1358
Chew SF / 2014 / Functional roles of Na+/K+-ATPase in active ammonia excretion and seawater acclimation in the giant mudskipper, Periophthalmodon schlosseri / Front. Physiol
Barton BA / 1987 / Influence of acclimation temperature on interrenal and carbohydrate stress responses in juvenile chinook salmon (Oncorhynchus tshawytscha) / Aquaculture 62
Barton BA / 1991 / Physiological changes in fish from stress in aquaculture with emphasis on the response and effects of corticosteroids / Annu. Rev. Fish. Dis 1 : 3 ~ 26
Benli ACK / 2008 / Sublethal ammonia exposure of Nile tilapia (Oreochromis niloticus L.): effects on gill, liver and kidney histology / Chemosphere 72 : 1355 ~ 1358
Chew SF / 2014 / Functional roles of Na+/K+-ATPase in active ammonia excretion and seawater acclimation in the giant mudskipper, Periophthalmodon schlosseri / Front. Physiol
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