Demonstration of several forms of decalcification in bone of the Teleost fish,Anguilla anguilla L

1970 ◽  
Vol 4 (1) ◽  
pp. 83-83 ◽  
Author(s):  
E. Lopez
Keyword(s):  
Teleost Fish ◽  
Anguilla Anguilla

STUDIES ON THE PRESSOR SUBSTANCES OF THE CAUDAL NEUROSECRETORY SYSTEM OF TELEOST FISH: BIOASSAY AND FRACTIONATION

1969 ◽  
Vol 45 (2) ◽  
pp. 151-159 ◽  
Author(s):  
D. K. O. CHAN ◽  
I. CHESTER JONES ◽  
S. PONNIAH
Keyword(s):  
Small Molecules ◽  
Teleost Fish ◽  
Anguilla Anguilla ◽  
Neurosecretory System ◽  
Active Molecule ◽  
Caudal Neurosecretory System ◽  
Disulphide Bonds

SUMMARY A method for the bioassay of the pressor substances in extracts of the urophyses of the teleost fish, Mugil auratus and Anguilla anguilla, is described. Ultracentrifugation, chromatography on Sephadex gel and treatment with trypsin and papain showed that the pressor principles are polypeptides. One fraction was protein-bound while two other fractions seem to be small molecules. Treatment with thioglycollate showed that disulphide bonds do not form an integral part of the active molecule. The possible function of these principles in the control of the caudal circulation is discussed.

H + and Cl − secretion in the stomach of the teleost fish, Anguilla anguilla  : stimulation by histamine and carbachol

1998 ◽  
Vol 168 (1) ◽  
pp. 1-8 ◽  
Author(s):  
F. Trischitta ◽  
M. G. Denaro ◽  
C. Faggio ◽  
M. Mandolfino ◽  
T. Schettino
Keyword(s):  
Teleost Fish ◽  
Anguilla Anguilla ◽  
Cl Secretion ◽  
Stimulation By Histamine

Effects of CdCl2 on electrophysiological parameters in the intestine of the teleost fish, Anguilla anguilla

1998 ◽  
Vol 41 (3) ◽  
pp. 251-264 ◽  
Author(s):  
M.G Lionetto ◽  
S Vilella ◽  
F Trischitta ◽  
M.S Cappello ◽  
M.E Giordano ◽  
...  
Keyword(s):  
Teleost Fish ◽  
Anguilla Anguilla

Chemically Contaminated Eel Fed to Pregnant and Lactating Mouse Dams Causes Hyperactivity in Their Offspring

2016 ◽  
Vol 86 (1-2) ◽  
pp. 36-47 ◽  
Author(s):  
Imen Dridi ◽  
Nidhal Soualeh ◽  
Torsten Bohn ◽  
Rachid Soulimani ◽  
Jaouad Bouayed
Keyword(s):  
Open Field ◽  
Early Life ◽  
Home Cage ◽  
Anguilla Anguilla ◽  
Acetylcholinesterase Activity ◽  
Female Offspring ◽  
Significant Inhibition ◽  
Standard Diet ◽  
Early Life Exposure ◽  
Cage Test

Abstract.This study examined whether perinatal exposure to polluted eels (Anguilla anguilla L.) induces changes in the locomotor activity of offspring mice across lifespan (post-natal days (PNDs) 47 – 329), using the open field and the home cage activity tests. Dams were exposed during gestation and lactation, through diets enriched in eels naturally contaminated with pollutants including PCBs. Analysis of the eel muscle focused on the six non-dioxin-like (NDL) indicator PCBs (Σ6 NDL-PCBs: 28, 52, 101, 138, 153 and 180). Four groups of dams (n = 10 per group) received either a standard diet without eels or eels (0.8 mg/kg/day) containing 85, 216, or 400 ng/kg/day of ϵ6 NDL-PCBs. The open field test showed that early-life exposure to polluted eels increased locomotion in female offspring of exposed dams but not in males, compared to controls. This hyperlocomotion appeared later in life, at PNDs 195 and 329 (up to 32 % increase, p < 0.05). In addition, overactivity was observed in the home cage test at PND 305: exposed offspring females showed a faster overall locomotion speed (3.6 – 4.2 cm/s) than controls (2.9 cm/s, p <0.05); again, males remained unaffected. Covered distances in the home cage test were only elevated significantly in offspring females exposed to highest PCB concentrations (3411 ± 590 cm vs. 1377 ± 114 cm, p < 0.001). These results suggest that early-life exposure to polluted eels containing dietary contaminants including PCBs caused late, persistent and gender-dependent neurobehavioral hyperactive effects in offspring mice. Furthermore, female hyperactivity was associated with a significant inhibition of acetylcholinesterase activity in the hippocampus and the prefrontal cortex.

Metazoan Parasites and Health State of European Eel, Anguilla Anguilla (Anguilliformes, Anguillidae), From Tonga Lake and El Mellah Lagoon in the Northeast of Algeria

2018 ◽  
Vol 52 (4) ◽  
pp. 279-288 ◽  
Author(s):  
F. Bakaria ◽  
S. Belhaoues ◽  
N. Djebbari ◽  
M. Tahri ◽  
I. Ladjama ◽  
...  
Keyword(s):  
Brackish Water ◽  
Parasite Species ◽  
Anguilla Anguilla ◽  
European Eel ◽  
Health State ◽  
Component Community ◽  
Metazoan Parasites ◽  
Parasite Communities ◽  
High Dominance ◽  
Argulus Foliaceus

Abstract The aim of the study was to examine metazoans parasite communities of European eels (Anguilla anguilla) in freshwater (Tonga Lake) and brackish water (El Mellah lagoon) in the northeast of Algeria. Six parasite taxa were collected: one monogenean, Pseudodactylogyrus sp.; two crustaceans, Ergasilus sp. and Argulus foliaceus; two nematodes, Cucullanus sp. and Anguillicola crassus; one cestode, Bothriocephalus claviceps. Th e most prevalent parasite taxa in freshwater were Pseudodactylogyrus sp., A. crassus and Bothriocephalus claviceps; whereas in the brackish water, eels were infected mainly with A. crassus. Th e characteristics of the parasite component community structure revealed low parasite species diversity and high dominance values in eels from the two localities. Both communities were dominated by a single parasite species: Tonga eels by the monogenean Pseudodactylogyrus sp. and El Mellah lagoon eels by the nematode A. crassus, verified by high Berger-Parker dominance values of 0.76 and 0.87 respectively.

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