The relationship between the activity of splenic enzymes and the immune response in the goldfish, Carassius auratus. I. Preliminary experiments with human A1 secretor's saliva and A1 RBC. II. Preliminary enzyme experiments using α-GPD and LDH

1982 ◽  
Vol 73 (2) ◽  
pp. 417-421
Author(s):  
Martin H. Rosen ◽  
Alfred Perlumutter
Keyword(s):  
Immune Response ◽  
Carassius Auratus ◽  
Goldfish Carassius Auratus ◽  
The Relationship

Specimen Weight and M.S. 222

1976 ◽  
Vol 33 (6) ◽  
pp. 1403-1407 ◽  
Author(s):  
A. H. Houston ◽  
J. T. Corlett ◽  
R. J. Woods
Keyword(s):  
Carassius Auratus ◽  
Salvelinus Fontinalis ◽  
Salmo Gairdneri ◽  
Goldfish Carassius Auratus ◽  
Anesthetic Concentration ◽  
Specimen Weight ◽  
Gill Area ◽  
Recovery Times ◽  
Specific Variation ◽  
The Relationship

The influence of specimen weight upon induction of and recovery from Stage I M.S. 222 (ethyl m-aminobenzoate methanesulphonate) was examined in goldfish (Carassius auratus), brook (Salvelinus fontinalis), and rainbow trout (Salmo gairdneri) exposed to various anesthetic concentration–temperature combinations. Both induction and recovery times varied inversely with weight, the influence of weight being particularly pronounced among smaller specimens. These observations are consistent with the hypothesis that attainment of "critical" internal anesthetic concentration is influenced by weight-specific variation in the relationship between gill area and extracellular phase volume.

The relationship between responsiveness and elusiveness of heat-shocked goldfish (Carassius auratus) to attacks by rainbow trout (Oncorhynchus mykiss)

1994 ◽  
Vol 72 (3) ◽  
pp. 423-426 ◽  
Author(s):  
Paul W. Webb ◽  
Hongbao Zhang
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Carassius Auratus ◽  
Prey Capture ◽  
Acclimation Temperature ◽  
Escape Velocity ◽  
Reaction Distance ◽  
Goldfish Carassius Auratus ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
The Relationship

We measured reaction distance, escape velocity, and the apparent looming threshold (ALT) of heat-shocked goldfish (Carassius auratus) attacked by trout (Oncorhynchus mykiss). We tested fish at the acclimation temperature of 15 °C after heat-shocking prey for 2 min at temperatures ranging from 34 to 39 °C. Escape speeds were unaffected by heat shock. Reaction distance decreased from about 21 cm for fish shocked at 35 °C to about 6 cm for those shocked at 39 °C. ALT increased from 0.2 rad∙s−1 for controls to 0.4 rad∙s−1 for goldfish heat-shocked at 39 °C. The elusiveness of prey, E, was measured as the number of attacks required per prey capture. E was related to ALT as: E = 1.29 (±0.47)∙ALT−0.82(±0.25) (mean (±2 SE)). Factors that decrease responsiveness of prey have large effects on the ability of prey to avoid predators.

Analysis of the immune response in infections of the goldfish (Carassius auratus L.) with Mycobacterium marinum

2012 ◽  
Vol 38 (3) ◽  
pp. 456-465 ◽  
Author(s):  
Jordan W. Hodgkinson ◽  
Jun-Qing Ge ◽  
Leon Grayfer ◽  
James Stafford ◽  
Miodrag Belosevic
Keyword(s):  
Immune Response ◽  
Carassius Auratus ◽  
Mycobacterium Marinum ◽  
Goldfish Carassius Auratus

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.

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