Differential ablation of sensory receptors underlies ototoxin-induced shifts in auditory thresholds of the goldfish (Carassius auratus)

2010 ◽  
Vol 30 (6) ◽  
pp. 536-541 ◽  
Author(s):  
John Ramcharitar ◽  
Gordon Michael Selckmann
Keyword(s):  
Carassius Auratus ◽  
Sensory Receptors ◽  
Auditory Thresholds ◽  
Goldfish Carassius Auratus

Non-simultaneous auditory masking in the goldfish, Carassius auratus

1979 ◽  
Vol 83 (1) ◽  
pp. 145-158
Author(s):  
A. N. Popper ◽  
N. L. Clarke
Keyword(s):  
Inner Ear ◽  
Pulse Duration ◽  
Carassius Auratus ◽  
Pure Tone ◽  
Auditory Masking ◽  
Auditory Thresholds ◽  
Noise Pulse ◽  
Goldfish Carassius Auratus ◽  
Tone Pulse

Auditory thresholds were determined for 500 HZ pure tone pulses of 15, 25 and 50 ms duration presented leading, following or simultaneously with noise pulses of 50 or 250 ms duration. Masking by the noise decreased: (i) with an increase in tone pulse duration; (ii) with a shortening of the noise pulse duration; and (iii) as the interval between tone and noise pulses was increased from 0 to 350 ms. The effect of the noise was independent of whether the noise led or followed the pure tone. It is suggested that the most significant factor affecting masking was the duration of the interval between tone and noise, and that the site for the interactions between signals is central to the inner ear.

SEM of Hepatocytes and Biliary Passages in Goldfish Liver

1977 ◽  
Vol 35 ◽  
pp. 556-557
Author(s):  
Waykin Nopanitaya ◽  
Joe W. Grisham ◽  
Johnny L. Carson
Keyword(s):  
Carassius Auratus ◽  
Cell Layer ◽  
Three Dimensional ◽  
Cell Types ◽  
Biliary System ◽  
Fish Food ◽  
Commercial Fish ◽  
Goldfish Carassius Auratus ◽  
Commercial Fish Food

An interesting feature of the goldfish liver is the morphology of the hepatic plate, which is always formed by a two-cell layer of hepatocytes. Hepatic plates of the goldfish liver contain an infrequently seen second type of cell, in the centers of plates between two hepatocytes. A TEH study by Yamamoto (1) demonstrated ultrastructural differences between hepatocytes and centrally located cells in hepatic plates; the latter were classified as ductule cells of the biliary system. None of the previous studies clearly showed a three-dimensional organization of the two cell types described. In the present investigation we utilize SEM to elucidate the arrangement of hepatocytes and bile ductular cells in intralobular plates of goldfish liver.Livers from young goldfish (Carassius auratus), about 6-10 cm, fed commercial fish food were used for this study. Hepatic samples were fixed in 4% buffered paraformaldehyde, cut into pieces, fractured, osmicated, CPD, mounted Au-Pd coated, and viewed by SEM at 17-20 kV. Our observations were confined to the ultrastructure of biliary passages within intralobular plates, ductule cells, and hepatocytes.

Induction of Gynogenesis and Androgenesis in Goldfish Carassius auratus (var. oranda)

2001 ◽  
Vol 36 (3-4) ◽  
pp. 195-198 ◽  
Author(s):  
I Paschos ◽  
L Natsis ◽  
C Nathanailides ◽  
I Kagalou ◽  
E Kolettas
Keyword(s):  
Carassius Auratus ◽  
Goldfish Carassius Auratus

Toxicity and deleterious impacts of selenium nanoparticles at supranutritional and imbalance levels on male goldfish (Carassius auratus) sperm

2021 ◽  
Vol 66 ◽  
pp. 126758
Author(s):  
Javad Seyedi ◽  
Mohammad Reza Kalbassi ◽  
Milad Esmaeilbeigi ◽  
Mohammad Behzadi Tayemeh ◽  
Jamshid Amiri Moghadam
Keyword(s):  
Carassius Auratus ◽  
Selenium Nanoparticles ◽  
Goldfish Carassius Auratus
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