Regularities of Variation of the Red Blood Indices Characterizing the Respiratory Function of Blood in Selected Fish

Maciak, Sebastian; Kostelecka‐Myrcha, Alina

doi:10.2478/v10049-011-0006-6

Cited by 6 publications

(5 citation statements)

References 24 publications

(54 reference statements)

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“…The erythrocyte surface area (S) of each individual was estimated using the equation [50] . The amount of Hb per total surface area (Hb/TSAE) was calculated as [44] . Because some individuals were too small for blood sampling, the final number of blood samples collected was 76.…”

Section: Methodsmentioning

confidence: 99%

Intraspecific Scaling of the Resting and Maximum Metabolic Rates of the Crucian Carp (Carassius auratus)

et al. 2013

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The question of how the scaling of metabolic rate with body mass (M) is achieved in animals is unresolved. Here, we tested the cell metabolism hypothesis and the organ size hypothesis by assessing the mass scaling of the resting metabolic rate (RMR), maximum metabolic rate (MMR), erythrocyte size, and the masses of metabolically active organs in the crucian carp (Carassius auratus). The M of the crucian carp ranged from 4.5 to 323.9 g, representing an approximately 72-fold difference. The RMR and MMR increased with M according to the allometric equations RMR = 0.212M 0.776 and MMR = 0.753M 0.785. The scaling exponents for RMR (b r) and MMR (b m) obtained in crucian carp were close to each other. Thus, the factorial aerobic scope remained almost constant with increasing M. Although erythrocyte size was negatively correlated with both mass-specific RMR and absolute RMR adjusted to M, it and all other hematological parameters showed no significant relationship with M. These data demonstrate that the cell metabolism hypothesis does not describe metabolic scaling in the crucian carp, suggesting that erythrocyte size may not represent the general size of other cell types in this fish and the metabolic activity of cells may decrease as fish grows. The mass scaling exponents of active organs was lower than 1 while that of inactive organs was greater than 1, which suggests that the mass scaling of the RMR can be partly due to variance in the proportion of active/inactive organs in crucian carp. Furthermore, our results provide additional evidence supporting the correlation between locomotor capacity and metabolic scaling.

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Section: Methodsmentioning

confidence: 99%

Intraspecific Scaling of the Resting and Maximum Metabolic Rates of the Crucian Carp (Carassius auratus)

et al. 2013

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“…showed significant differences between the two study sites. Previous studies of differences in physiological activities of fish indicated that the rate of oxygen consumption was inversely related to the volume of erythrocytes ( Maciak & Kostelecka-Myrcha 2011 ; Longeville & Stingaciu 2017 ; Parrino et al . 2018 ).…”

Section: Discussionmentioning

confidence: 99%

“…2018 ). It is well established that environmental factors affect their blood cell numbers, distribution and morphology ( Maciak & Kostelecka-Myrcha 2011 ; Megarani et al . 2020 ; Parrino et al .…”

Section: Discussionmentioning

confidence: 99%

“…External environmental factors and an organism’s energy requirements have a significant effect on hemoglobin concentration, the size and number of erythrocytes, and subsequently, the total surface area of blood cells in circulation ( Maciak & Kostelecka-Myrcha 2011 ). Changes in the size of erythrocytes are inversely proportional to the metabolic activity of an organism ( Smith 1925 ).…”

Section: Discussionmentioning

confidence: 99%

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Hematological Evaluation of Three Common Teleosts in Relation to The Environmental Changes from Trang Province, Thailand

Archig Jeamah,

Sinlapachai Senarat,

Suparat Kongoh

et al. 2023

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Hematological evaluation of fish is essential to the assessment of their physiological status. This study describes the morphometric analysis and comparison of blood cell characteristics in Zanarchopterus sp., Gerres filamentosus Cuvier, 1829 and Leiognathus decorus (De Vis, 1884). The species were collected at two locations off the coast of Trang Province, Thailand. A comparative hematological evaluation was made to assess the effects of environmental conditions on the blood of the fish. Ten individuals of each species were collected from a seagrass bed at Libong Island, where human activities are increasing, and from a secluded sandy beach. Their blood samples were analysed using the blood smear technique. Erythrocytes of all the studied fishes were either elliptical or oval. The morphometric data from both locations showed that erythrocytes were of similar size, except for those of Zanarchopterus sp. Fish from both stations showed several types of leukocytes, including neutrophils and lymphocytes.The highest proportion of leukocytes was made up of lymphocytes, followed by neutrophils. However, monocytes were only observed in fish from Libong Island and the erythrocytic nuclei of fish collected from Libong Island were both reniform and lobate. Our results show the potential of hematological evaluation as an early warning signal of environmental impacts on aquatic animals. The determination of baseline parameters could provide a tool for the monitoring of environmental quality.

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“…The adjustments in cell size and number could also enable more efficient haemoglobin use, especially when birds encounter increased blood flow [109,110]. Full haemoglobin saturability in the lungs depends on haemoglobinoxygen affinity [111], the rate of gas exchange [82] and the available exchange surface of erythrocytes relative to the haemoglobin content in the blood (haemoglobin-tototal-surface-area-of-erythrocytes ratio) [109,110,112]. A rapid capillary transit associated with increased blood flow may reduce the time required for full haemoglobin saturation, hence, a larger total surface of erythrocytes area per blood volume unit may help to overcome eventual limitations of increased blood flow and enable more efficient haemoglobin use.…”

Section: Consuming Dietary Anthocyanins Produces Smaller and More Abu...mentioning

confidence: 99%

Concerted phenotypic flexibility of avian erythrocyte size and number in response to dietary anthocyanin supplementation

et al. 2023

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Background Endurance flight impose substantial oxidative costs on the avian oxygen delivery system. In particular, the accumulation of irreversible damage in red blood cells can reduce the capacity of blood to transport oxygen and limit aerobic performance. Many songbirds consume large amounts of anthocyanin-rich fruit, which is hypothesized to reduce oxidative costs, enhance post-flight regeneration, and enable greater aerobic capacity. While their antioxidant benefits appear most straightforward, the effects of anthocyanins on blood composition remain so far unknown. We fed thirty hand-raised European starlings (Sturnus vulgaris) two semisynthetic diets (with or without anthocyanin supplement) and manipulated the extent of flight activity in a wind tunnel (daily flying or non-flying for over two weeks) to test for their interactive effects on functionally important haematological variables. Results Supplemented birds had on average 15% more and 4% smaller red blood cells compared to non-supplemented individuals and these diet effects were independent of flight manipulation. Haemoglobin content was 7% higher in non-supplemented flying birds compared to non-flying birds, while similar haemoglobin content was observed among supplemented birds that were flown or not. Neither diet nor flight activity influenced haematocrit. Conclusion The concerted adjustments suggest that supplementation generally improved antioxidant protection in blood, which could prevent the excess removal of cells from the bloodstream and may have several implications on the oxygen delivery system, including improved gas exchange and blood flow. The flexible haematological response to dietary anthocyanins may also suggest that free-ranging species preferentially consume anthocyanin-rich fruits for their natural blood doping, oxygen delivery-enhancement effects.

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Regularities of Variation of the Red Blood Indices Characterizing the Respiratory Function of Blood in Selected Fish

Cited by 6 publications

References 24 publications

Intraspecific Scaling of the Resting and Maximum Metabolic Rates of the Crucian Carp (Carassius auratus)

Intraspecific Scaling of the Resting and Maximum Metabolic Rates of the Crucian Carp (Carassius auratus)

Hematological Evaluation of Three Common Teleosts in Relation to The Environmental Changes from Trang Province, Thailand

Concerted phenotypic flexibility of avian erythrocyte size and number in response to dietary anthocyanin supplementation

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