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빠른 염분변화가 striped bass 잡종 (Morone chrysops ♀×M. saxatilis ♂)의 생리적 반응과 생존에 미치는 영향
임한규 ( Im Han Gyu ),이종하 ( Lee Jong Ha ),정민환 ( Jeong Min Hwan ),한형균 ( Han Hyeong Gyun ),임영수 ( Im Yeong Su ),이정호 ( Lee Jeong Ho ),이병철 ( Lee Byeong Cheol ) 한국수산과학회 2004 한국수산과학회지 Vol.37 No.2
N/A Physiological responses and tolerance limit of hybrid striped bass (Morone chrysops ?xM. saxatilis ?), were investigated on salinity changes from 33 psu to 0 psu and from 0 to psu 33 psu in two separate trials, respectively. In the acute salinity decrease from sea water (33 psu) to fresh water (0 psu), plasma level of cortisol, glucose, total protein, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) were not affected, however, NaC, CI- and osmolality significantly decreased. In the acute salinity increase from fresh water to sea water (33 psu), plasma cortisol level did not change. Glucose and total protein concentrations in plasma and hematocrit (Hct) decreased, whereas AST, ALT, Na`, C1` and osmolality increased. The hybrid striped bass can overcome the acute changes of salinity, from 0 psu to 33 psu or from 33 psu to Opsu, But salinity decrease stressed the fish much more than salinity increase.