1 Fish Blood Cells

Fänge, Ragnar

doi:10.1016/s1546-5098(08)60008-4

Cited by 63 publications

(52 citation statements)

References 213 publications

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“…Although the Hct and [Hb] values reported here are within the range of values previously demonstrated for teleosts, Hct values as high as ~50% are typically measured in active, aerobically swimming teleosts or in fish exposed to hypoxic conditions (Fänge, 1992;Gallaugher and Farrell, 1992;Brauner and Val, 2005). Considering that a number of factors including swelling of red blood cells and splenic contraction resulting from handling stress can influence Hct values (Gallaugher and Farrell, 1992), the rather high blood Hct measured in 26°C-acclimated fish warrants further investigation.…”

Section: The Journal Of Experimental Biology 216 (11)supporting

confidence: 73%

Physiological plasticity of cardiorespiratory function in a eurythermal marine teleost, the longjaw mudsucker,Gillichthys mirabilis

Jayasundara

Somero

2013

Journal of Experimental Biology

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SUMMARYAn insufficient supply of oxygen under thermal stress is thought to define thermal optima and tolerance limits in teleost fish. When under thermal stress, cardiac function plays a crucial role in sustaining adequate oxygen supply for respiring tissues. Thus, adaptive phenotypic plasticity of cardiac performance may be critical for modifying thermal limits during temperature acclimation. Here we investigated effects of temperature acclimation on oxygen consumption, cardiac function and blood oxygen carrying capacity of a eurythermal goby fish, Gillichthys mirabilis, acclimated to 9, 19 and 26°C for 4weeks. Acclimation did not alter resting metabolic rates or heart rates; no compensation of rates was observed at acclimation temperatures. However, under an acute heat ramp, warm-acclimated fish exhibited greater heat tolerance (CT max =33.3, 37.1 and 38.9°C for 9°C-, 19°C-and 26°C-acclimated fish, respectively) and higher cardiac arrhythmia temperatures compared with 9°C-acclimated fish. Heart rates measured under an acute heat stress every week during 28days of acclimation suggested that both maximum heart rates and temperature at onset of maximum heart rates changed over time with acclimation. Hemoglobin levels increased with acclimation temperature, from 35gl −1 in 9°C-acclimated fish to 60-80gl −1 in 19°C-and 26°C-acclimated fish. Oxygen consumption rates during recovery from acute heat stress showed post-stress elevation in 26°C-acclimated fish. These data, coupled with elevated resting metabolic rates and heart rates at warm temperatures, suggest a high energetic cost associated with warm acclimation in G. mirabilis. Furthermore, acclimatory capacity appears to be optimized at 19°C, a temperature shown by behavioral studies to be close to the speciesʼ preferred temperature. Supplementary material available online at

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Section: The Journal Of Experimental Biology 216 (11)supporting

confidence: 73%

Physiological plasticity of cardiorespiratory function in a eurythermal marine teleost, the longjaw mudsucker,Gillichthys mirabilis

Jayasundara

Somero

2013

Journal of Experimental Biology

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“…The confusing state of the literature on tissue eosinophils and mast cells in fish (Ellis, 1977;Fänge, 1992) may become more clear if, as a first step, the main characteristics of these cells is characterised in fish species belonging to the same family. An approach in that direction reveals that available reports on granule cells of the digestive tract of di#erent species of labroids (Jordan & Speidel, 1924;Duthie, 1939;Al-Hussaini, 1949;Catton, 1951) all agree with the statement that the eosinophilic character of the granules is dominant in this group of teleosts.…”

Section: Discussionmentioning

confidence: 99%

“…Di#erent studies conclude that the cytoplasmic granules of these cells are acidophilic, staining red with eosin (Gulland, 1898;Green, 1912;Weinreb & Bilstad, 1955;Bucke, 1971;Ezeasor & Stokoe, 1980), or basophilic, staining blue-without showing metachromasia-after application of some of the blue cationic dyes or dye combinations (Bolton, 1933;Bielek, 1975). The term 'eosinophilic granule cell' is widely accepted by fish biologists, but from reviews of the literature it is evident that these cells still pose a complex problem (Ellis, 1977;Fänge, 1992). It is advised not to overemphasize their acidophilic character since under certain conditions they stain with basic dyes (Vallejo & Ellis, 1989).…”

Section: Introductionmentioning

confidence: 99%

The mast cell nature of granule cells in the digestive tract of the pike,Esox lucius: similarity to mammalian mucosal mast cells and globule leucocytes

Reite

1996

Fish & Shellfish Immunology

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“…after 50 and 100 days of permanence in controlled conditions. These time intervals were chosen on the basis of average turnover time for erythrocytes, evaluated in 150 days (Fange, 1992). As control, a group of barbels obtained by artificial reproduction and kept in the same conditions were used.…”

Section: Methodsmentioning

confidence: 99%

Micronucleus test in erythrocytes of Barbus plebejus (Teleostei, Pisces) from two natural environments: a bioassay for the in situ detection of mutagens in freshwater

Minissi

Ciccotti

Rizzoni

1996

Mutation Research/Genetic Toxicology

132

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Erythrocyte micronucleus frequencies in wild fish from two riverine environments and in fish reproduced and reared under controlled conditions (control group) were compared, with the aim to evaluate the suitability of the MN test for the in situ detection of mutagens in freshwaters. Fish were caught in different months in two rivers of central Italy which have different pollution levels. As indicator species, the barbel (Barbus plebejus) was chosen because of its ecological significance. Blood samplings were performed on wild fish immediately after capture and repeated at different time intervals on the same individuals, which were maintained in controlled conditions after capture. A total of 10000 erythrocytes per specimen were scored. No significant differences in micronucleus frequencies were observed between the control group and fish from the unpolluted river (Mignone). A significantly higher frequency of micronuclei was observed in fish caught in the polluted river (Tiber), in comparison to both the controls and the Mignone river fish. No significant seasonal differences were observed. Barbels examined 50 and 100 days after capture presented a remarkable decrease in micronucleus frequency in comparison with the frequency observed in barbels at capture. The micronucleus test in fish erythrocytes was shown to be a sensitive bioassay for detecting mutagenic pollution in fresh water environments.

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1 Fish Blood Cells

Cited by 63 publications

References 213 publications

Physiological plasticity of cardiorespiratory function in a eurythermal marine teleost, the longjaw mudsucker,Gillichthys mirabilis

Physiological plasticity of cardiorespiratory function in a eurythermal marine teleost, the longjaw mudsucker,Gillichthys mirabilis

The mast cell nature of granule cells in the digestive tract of the pike,Esox lucius: similarity to mammalian mucosal mast cells and globule leucocytes

Micronucleus test in erythrocytes of Barbus plebejus (Teleostei, Pisces) from two natural environments: a bioassay for the in situ detection of mutagens in freshwater

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