Results 181 to 190 of about 2,068 (196)
Some of the next articles are maybe not open access.
Pimelodus maculatus Lacepede 1803
10. Le Pimélode Tacheté. (Pimelodus maculatus.) Six barbillons aux mâchoires; sept rayons à la premiere dorsale; onze rayons à l'anale; le lobe supérieur de Ia queue, plus long que l'inférieur; la couleur générale d'un bleu doré; deux rangées longitudinales de taches noires, de chaque côté de l'animal.openaire +1 more source
Comparative Biochemistry and Physiology Part A: Physiology, 1977
Abstract 1. 1. The effect of changes in pH, ATP concentration and temperature upon the oxygen equilibria of the hemoglobin hemolysate from the freshwater catfish Pimelodus maculatus are reported. Chromatography of the hemolysate allowed the isolation of three components, and oxygen equilibrium studies on two of these are also mentioned. 2. 2.
openaire +1 more source
Abstract 1. 1. The effect of changes in pH, ATP concentration and temperature upon the oxygen equilibria of the hemoglobin hemolysate from the freshwater catfish Pimelodus maculatus are reported. Chromatography of the hemolysate allowed the isolation of three components, and oxygen equilibrium studies on two of these are also mentioned. 2. 2.
openaire +1 more source
Temperature induced transformation of teleost (Pimelodus maculatus) epidermal cells.
Gegenbaurs morphologisches Jahrbuch, 1983Superficial epidermal cells of the teleost Pimelodus maculatus show modifications after heat exposure (36 degrees C) for 3 days. Heat treatment affects the arrangement of cytoplasmic filaments resulting in the disappearance of the microridges. The fish maintained at 36 degrees C during 3 days show modifications in the cytoplasmic organization of their ...
openaire +1 more source
Journal of Fish Biology
AbstractFish presence in tailraces is a remarkable management concern in operating hydroelectric power plants (HPP) in Brazilian rivers. Fish get blocked during upstream migration for spawning, and large shoals can last for days in the tailrace; however, the circumstances that attract fish throughout the year to this region are uncertain, especially ...
Jurandir Joaquim Bernardes Junior +4 more
openaire +2 more sources
AbstractFish presence in tailraces is a remarkable management concern in operating hydroelectric power plants (HPP) in Brazilian rivers. Fish get blocked during upstream migration for spawning, and large shoals can last for days in the tailrace; however, the circumstances that attract fish throughout the year to this region are uncertain, especially ...
Jurandir Joaquim Bernardes Junior +4 more
openaire +2 more sources
Fine structure of a freshwater teleost (Pimelodus maculatus) intrahepatic biliary pathways.
Anatomischer Anzeiger, 1982The intrahepatic biliary passages of a teleost liver composed by a muralium duplex was studied by electron microscopy. The bile canaliculus was commonly formed by 2 or more hepatic cells. In the transition zone between the intercellular bile canaliculus and the bile ductule, this duct was formed in part by hepatic cells and in part by duct cells. While
openaire +1 more source
Ultrastructure of the epidermal cells of the teleost Pimelodus maculatus Lacépède, 1803 (pisces).
Anatomischer Anzeiger, 1977By means of electronmicroscope technique were studied the cell types in the epidermis of the teleost Pimelodus maculatus LACEPEDE. The varied cells were described after their morphological aspect. The behaviour of the plasma membrane and the cytoplasmatic components, especially the microfilaments and the rough endoplasmatic reticulum, were discussed in
S, Ferri +3 more
openaire +1 more source
Acta Zoologica, 1983
AbstractIn the present report a characteristic pattern showed by cytoplasmic filaments (intermediate‐sized and actin‐like) in the perinuclear area of a freshwater teleost (Pimelodus maculatus) endothelial cells is described for the first time. Thus, many intermediate‐sized filaments are directly inserted in the nuclear envelope, but others are ...
openaire +1 more source
AbstractIn the present report a characteristic pattern showed by cytoplasmic filaments (intermediate‐sized and actin‐like) in the perinuclear area of a freshwater teleost (Pimelodus maculatus) endothelial cells is described for the first time. Thus, many intermediate‐sized filaments are directly inserted in the nuclear envelope, but others are ...
openaire +1 more source
Anatomischer Anzeiger, 1981
The hepatocytes of Pimelodus maculatus studied in thin sections revealed: 1. 3 physiological surfaces: a) in content with the Disse's space; b) in contact with neighboring hepatocytes; and c) showing grooves that delimit bile canaliculi; 2. bile canaliculi presenting, sometimes, intracellular diverticula; 3.
A B, Bonates, S, Ferri
openaire +1 more source
The hepatocytes of Pimelodus maculatus studied in thin sections revealed: 1. 3 physiological surfaces: a) in content with the Disse's space; b) in contact with neighboring hepatocytes; and c) showing grooves that delimit bile canaliculi; 2. bile canaliculi presenting, sometimes, intracellular diverticula; 3.
A B, Bonates, S, Ferri
openaire +1 more source
Gap Junction Modification in Hepatic Cells of a Fasting Freshwater Teleost (Pimelodus maculatus)
Acta Zoologica, 1985AbstractScarce information concerning gap junction modifications in liver cells is found in the literature. The fine details of gap junctions in the hepatocytes of the teleost Pimelodus maculatus fasting during 3 months are reported for the first time in the present study.
openaire +1 more source
Anatomischer Anzeiger, 1987
In the present study, a hitherto undescribed granule type in the leucocytes of the freshwater teleost Pimelodus maculatus is reported. This membrane bounded elliptic granule contains straight tubules measuring from 8 to 10 nm in diameter. Almost all granules present 1 or 2 electron dense inclusions more often than not with a geometrical form.
S, Ferri, F J, Hernandez Blazquez
openaire +1 more source
In the present study, a hitherto undescribed granule type in the leucocytes of the freshwater teleost Pimelodus maculatus is reported. This membrane bounded elliptic granule contains straight tubules measuring from 8 to 10 nm in diameter. Almost all granules present 1 or 2 electron dense inclusions more often than not with a geometrical form.
S, Ferri, F J, Hernandez Blazquez
openaire +1 more source