The brain-pituitary-gonadal axis in the rainbow trout, Salmo gairdneri: Gonadal hormones and the maturation of gonadotropic cells

1982 ◽  
Vol 225 (1) ◽  
pp. 45-56 ◽  
Author(s):  
J. Th. Gielen ◽  
H. J. Th. Goos ◽  
J. Peute ◽  
R. A. van den Bosch ◽  
P. G. W. J. van Oordt
Keyword(s):  
Rainbow Trout ◽  
Gonadal Hormones ◽  
Salmo Gairdneri ◽  
Gonadotropic Cells ◽  
The Brain

Circulatory and Ventilatory Responses of Rainbow Trout (Salmo gairdneri) to Artificial Manipulation of Gill Surface Area

1971 ◽  
Vol 28 (10) ◽  
pp. 1609-1614 ◽  
Author(s):  
John C. Davis
Keyword(s):  
Blood Flow ◽  
Cardiac Output ◽  
Rainbow Trout ◽  
Surface Area ◽  
Salmo Gairdneri ◽  
Ventilatory Responses ◽  
Arterial Blood ◽  
Gill Area ◽  
Gill Surface Area ◽  
The Brain

Reductions in surface area of the gill were artificially produced by ligating various gill arches and occluding their blood supply. Rainbow trout (Salmo gairdneri) responded to a 40–57% reduction in gill area, by increasing cardiac output and ventilation volume, and probably by redistributing blood within the remaining functional gill area. Fish with blood flow to gill arches one and three only, could maintain arterial PO2 at 90–100 mm Hg, whereas, in those with blood flow to arches three and four only, arterial PO2 fell to around 40 mm Hg. The presence of a chemoreceptor site for the regulation of arterial PO2 associated with the efferent blood vessels of arch number one is discussed. Such a receptor may be located in the pseudobranch or in the portion of the brain supplied with arterial blood from the first gill arch.

Localization by immunofluorescence of a gastrin-like substance in the brain of the rainbow trout, Salmo gairdneri

1981 ◽  
Vol 214 (2) ◽  
Author(s):  
C.D. Notenboom ◽  
J.C. Garaud ◽  
J. Doerr-Schott ◽  
M. Terlou
Keyword(s):  
Rainbow Trout ◽  
Salmo Gairdneri ◽  
The Brain

The disposition of naphthalene and its metabolites in the brain of rainbow trout (Salmo gairdneri)

1980 ◽  
Vol 23 (1) ◽  
pp. 35-41 ◽  
Author(s):  
Tracy K. Collier ◽  
Margaret M. Krahn ◽  
Donald C. Malins
Keyword(s):  
Rainbow Trout ◽  
Salmo Gairdneri ◽  
The Brain

scholarly journals Molecular species composition of the major phospholipids in brain and retina from rainbow trout (Salmo gairdneri). Occurrence of high levels of di-(n-3)polyunsaturated fatty acid species

1989 ◽  
Vol 264 (3) ◽  
pp. 909-915 ◽  
Author(s):  
M V Bell ◽  
D R Tocher
Keyword(s):  
Fatty Acid ◽  
Rainbow Trout ◽  
Species Composition ◽  
Polyunsaturated Fatty Acid ◽  
Molecular Species ◽  
Salmo Gairdneri ◽  
Nervonic Acid ◽  
Molecular Species Composition ◽  
Fatty Acid Species ◽  
The Brain

The molecular-species compositions of the diacyl classes of the major phospholipids from the brain and retina of rainbow trout (Salmo gairdneri) were determined. A total of 46 possible species was identified. Didocosahexaenoyl species were major components of phosphatidylcholine (PC), phosphatidylethanolamine (PE) and phosphatidylserine (PS) from retina, comprising 14.1, 41.3 and 28.3% of the respective totals. This species was also abundant in PE and PS from brain, accounting for 14.9 and 19.9% of the totals respectively. Small amounts of di-polyunsaturated fatty acid species [C22:6(n-3) with C20:5(n-3), and C22:6(n-3) with C22:5(n-3)] were also found in these phospholipids. Phosphatidylinositol (PI) from both tissues contained no di-polyunsaturated fatty acid species. Retinal PI contained 40.1% C18:0-C20:4(n-6) with 14.9% of C18:0-C20:5(n-3); brain PI contained 42.3% of C18:0-C20:5 and 10.4% of C18:0-C20:4 species. Brain PC contained a substantial amount of nervonic acid-containing species with the pair C18:1-C24:1/C24:1-C18:1 comprising 8.9% of the total.

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