Iranian Journal of Fisheries Sciences
مجله علوم شیلاتی ایران
IJFS
Agriculture
http://jifro.ir
1
admin
1562-2916
10.18869/acadpub.ijfs
en
jalali
1385
4
1
gregorian
2006
7
1
6
1
online
1
fulltext
en
Blood serum osmotic and ionic regulation of wild adults and reared juvenile Persian sturgeon, Acipenser persicus
Biology & physiology
Biology & physiology
پژوهشي
Orginal research papers
The osmoregulatory system was studied in wild adult and reared juvenile Persian sturgeon, <em>Acipenser persicus</em>. The mean osmolarity in blood serum of specimens from the Caspian Sea, estuary, the Kouraneski pools and the rearing tanks were 305.3±14.3, 308.7±25.8, 265.0±19.1 and 259.3±8.8 mosmol/L, respectively; the mean concentrations of Na<sup>+ </sup>were 151.2±6.3, 152.2±8.4, 142.5±5.9 and 131.4±4.1 meq/L whereas mean concentrations of K<sup>+</sup> were 2.7±0.9, 3.6±0.9, 3.1±0.5 and 2.6±0.5meq/L, respectively. The concentrations for Mg<sup>++ </sup>ion in fish of the same four origins were 1.5±0.2; 1.5±0.3, 0.8±0.2 and 0.7±0.2 meq/L, and those of Ca<sup>++</sup> were 2.31±0.51, 2.61±0.51, 1.85±0.58 and 1.46±0.43, respectively. The Pearson's correlation coefficient and regression equation indicated that Mg<sup>++</sup>(r =0.38) and Na<sup>+</sup> (r=0.41) were effective ions for determination of blood serum osmotic pressure in <em>A. persicus</em> in brackish water and freshwater. This study also showed that blood serum osmotic pressure was independent of sex.
Caspian Sea, Persian sturgeon, Osmo-ionoregulation, Blood serum
43
56
http://jifro.ir/browse.php?a_code=A-10-600-117&slc_lang=en&sid=1
R.
Kazemi
rezkazemi2000@yahoo.com
100319475328460024410
100319475328460024410
Yes
M.
Bahmani
100319475328460024411
100319475328460024411
No
A.
Hallajian
100319475328460024412
100319475328460024412
No
M.
Yarmohammadi
100319475328460024413
100319475328460024413
No