Endocrine Effect on The Osmoregulation in The Protandrous Black Porgy, Acanthopagrus schlegeli
碩士 === 國立海洋大學 === 水產養殖學系 === 90 === Abstract The objectives of the study were to investigate the effects of salinity and hormones in osmolality, Na+/K+-ATPase activity in gill, intestine and kidney in black porgy. Serum osmolality was increased in black porgy adapted...
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ndltd-TW-090NTOU00860282015-10-13T10:34:08Z http://ndltd.ncl.edu.tw/handle/00511754440134329258 Endocrine Effect on The Osmoregulation in The Protandrous Black Porgy, Acanthopagrus schlegeli 內分泌對黑鯛滲透壓之調控作用 汪懷遠 碩士 國立海洋大學 水產養殖學系 90 Abstract The objectives of the study were to investigate the effects of salinity and hormones in osmolality, Na+/K+-ATPase activity in gill, intestine and kidney in black porgy. Serum osmolality was increased in black porgy adapted from freshwater to seawater environment. Na+/K+-ATPase activity in gill and kidney decreased with the increase of salinity. Na+/K+-ATPase activity in intestine increased in fish adapted to seawater. Serum cortisol levels were higher in freshwater than those in seawater fish. Serum osmolality reached to the highest value after 8-h acute exposure from freshwater to seawater. Na+/K+-ATPase activity in gill and kidney was increased but Na+/K+-ATPase activity was decreased in the period of the first 4-h exposure from freshwater to seawater. Cortisol and aldosterone but not thyronine(T3)stimulated serum osmolality in freshwater fish. Cortisol, T3 and aldorsterone decreased Na+/K+-ATPase activity in gill and intestine of freshwater black porgy. Cortisol, T3 and aldorsterone decreased serum growth hormone(GH)reach but not Insulin-like growth factor(IGF-I) in freshwater fish. Cortisol, T3 and aldosterone did not had significant and consistent effects in the serum osmolality, Na+/K+-ATPase activity in gill and kidney, Serum GH level and IGF-I levels in seawater fish. Serum IGF-I and GH levels were decreased in black porgy adapted from seawater to freshwater . Higher cortisol and lower gonadotropin II levels in serum were found in the freshwater fish than those in seawater fish. The data indicated that cortisol , aldosterone, GH and IGF-I were closely associated with the changes of the osmoregulation in euryhaline black porgy. Chang Ching-Fong 張清風 2002 學位論文 ; thesis 76 zh-TW |
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碩士 === 國立海洋大學 === 水產養殖學系 === 90 === Abstract
The objectives of the study were to investigate the effects of salinity and hormones in osmolality, Na+/K+-ATPase activity in gill, intestine and kidney in black porgy.
Serum osmolality was increased in black porgy adapted from freshwater to seawater environment. Na+/K+-ATPase activity in gill and kidney decreased with the increase of salinity. Na+/K+-ATPase activity in intestine increased in fish adapted to seawater. Serum cortisol levels were higher in freshwater than those in seawater fish. Serum osmolality reached to the highest value after 8-h acute exposure from freshwater to seawater. Na+/K+-ATPase activity in gill and kidney was increased but Na+/K+-ATPase activity was decreased in the period of the first 4-h exposure from freshwater to seawater. Cortisol and aldosterone but not thyronine(T3)stimulated serum osmolality in freshwater fish. Cortisol, T3 and aldorsterone decreased Na+/K+-ATPase activity in gill and intestine of freshwater black porgy. Cortisol, T3 and aldorsterone decreased serum growth hormone(GH)reach but not Insulin-like growth factor(IGF-I) in freshwater fish. Cortisol, T3 and aldosterone did not had significant and consistent effects in the serum osmolality, Na+/K+-ATPase activity in gill and kidney, Serum GH level and IGF-I levels in seawater fish.
Serum IGF-I and GH levels were decreased in black porgy adapted from seawater to freshwater . Higher cortisol and lower gonadotropin II levels in serum were found in the freshwater fish than those in seawater fish. The data indicated that cortisol , aldosterone, GH and IGF-I were closely associated with the changes of the osmoregulation in euryhaline black porgy.
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author2 |
Chang Ching-Fong |
author_facet |
Chang Ching-Fong 汪懷遠 |
author |
汪懷遠 |
spellingShingle |
汪懷遠 Endocrine Effect on The Osmoregulation in The Protandrous Black Porgy, Acanthopagrus schlegeli |
author_sort |
汪懷遠 |
title |
Endocrine Effect on The Osmoregulation in The Protandrous Black Porgy, Acanthopagrus schlegeli |
title_short |
Endocrine Effect on The Osmoregulation in The Protandrous Black Porgy, Acanthopagrus schlegeli |
title_full |
Endocrine Effect on The Osmoregulation in The Protandrous Black Porgy, Acanthopagrus schlegeli |
title_fullStr |
Endocrine Effect on The Osmoregulation in The Protandrous Black Porgy, Acanthopagrus schlegeli |
title_full_unstemmed |
Endocrine Effect on The Osmoregulation in The Protandrous Black Porgy, Acanthopagrus schlegeli |
title_sort |
endocrine effect on the osmoregulation in the protandrous black porgy, acanthopagrus schlegeli |
publishDate |
2002 |
url |
http://ndltd.ncl.edu.tw/handle/00511754440134329258 |
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