Nucleus lateralis tuberis-pars lateralis and background adaptation in the rainbow trout, Salmo gairdneri

1985 ◽  
Vol 240 (1) ◽  
Author(s):  
M. Terlou ◽  
J.Th. Gielen ◽  
C.D. Notenboom
Keyword(s):  
Rainbow Trout ◽  
Salmo Gairdneri ◽  
Background Adaptation ◽  
Nucleus Lateralis Tuberis ◽  
Pars Lateralis

Nonrelationship between plasma melatonin and background adaptation in the rainbow trout (Salmo gairdneri)

1978 ◽  
Vol 34 (4) ◽  
pp. 459-467 ◽  
Author(s):  
David W. Owens ◽  
William A. Gern ◽  
Charles L. Ralph ◽  
Thomas J. Boardman
Keyword(s):  
Rainbow Trout ◽  
Salmo Gairdneri ◽  
Plasma Melatonin ◽  
Background Adaptation

Effects of background adaptation on the pituitary and plasma concentrations of some pro-opiomelanocortin-related peptides in the rainbow trout (Salmo gairdneri)

1984 ◽  
Vol 101 (3) ◽  
pp. 277-284 ◽  
Author(s):  
K. T. Rodrigues ◽  
J. P. Sumpter
Keyword(s):  
Rainbow Trout ◽  
Time Course ◽  
Plasma Concentrations ◽  
Colour Change ◽  
The Body ◽  
Salmo Gairdneri ◽  
White Background ◽  
Black And White ◽  
Background Adaptation

ABSTRACT Radioimmunoassays for α-MSH, β-MSH, ACTH and endorphin were used to measure pituitary concentrations of these peptides in rainbow trout during adaptation to black and white backgrounds. There was no difference in the pituitary content of any of these peptides between long-term black- and white-adapted trout. Plasma levels of α-MSH immunoreactivity were significantly higher in black-adapted trout than in white-adapted trout. Time-course studies revealed that although the body colour of trout showed an initial rapid adaptation to background colour, this was not paralleled by a corresponding change in plasma α-MSH levels. These only showed significant changes after 7 or more days of background adaptation, when melanophore recruitment or degradation occurred on black or white backgrounds respectively. Intravenous administration of mammalian α-MSH, salmon β-MSH I or antibodies to these peptides did not affect short-term background adaptation. However, long-term administration of mammalian α-MSH via osmotic minipump maintained melanophore numbers in grey-adapted trout transferred to a white background, although this observation was based on only two fish. It is concluded that peptides derived from pro-opiomelanocortin do not appear to be involved in controlling physiological colour change but may be involved in regulating morphological colour change of the rainbow trout. J. Endocr. (1984) 101, 277–284

Temperature Selection of Rainbow Trout (Salmo gairdneri) Fingerlings in Vertical and Horizontal Gradients

1971 ◽  
Vol 28 (11) ◽  
pp. 1801-1804 ◽  
Author(s):  
R. W. McCauley ◽  
W. L. Pond
Keyword(s):  
Rainbow Trout ◽  
Salmo Gairdneri ◽  
Temperature Preference ◽  
Temperature Selection ◽  
Horizontal Gradients ◽  
Significant Difference ◽  
Preferred Temperatures ◽  
Laboratory Investigations ◽  
Horizontal Temperature Gradients ◽  
Selection Of

Preferred temperatures of underyearling rainbow trout (Salmo gairdneri) were determined in both vertical and horizontal temperature gradients. No statistically significant difference was found between the preferred temperatures by the two different methods. This suggests that the nature of the gradient plays a lesser role than generally believed in laboratory investigations of temperature preference.

scholarly journals The Distribution of 35S-Sulfadiazine and 14G-Trimethoprim in Rainbow Trout, Salmo Gairdneri

1979 ◽  
Vol 20 (1) ◽  
pp. 25-37 ◽  
Author(s):  
Torill Bergsjø ◽  
Inger Nafstad ◽  
Kristian Ingebrigtsen
Keyword(s):  
Rainbow Trout ◽  
Salmo Gairdneri
Sign in / Sign up

Export Citation Format

Share Document