Сравнительно-физиологическая характеристика крови и кроветворных органов рыб и водных млекопитающих
Comparatively-physiological characteristic of blood and blood-forming organs of the fish and aquatic mammals
Comparatively-physiological characteristic of blood and blood-forming organs of the fish and aquatic mammals
Дата
1968
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Издатель
Biologiya morya
Аннотация
The most significant factor of aquatic environment is perhaps sharp reduction of activity of gravitation power. The Aquatic organisms practically spend on efforts on supporting their bodies in contrast to the ground animals. This factor is to be considered when comparing blood peculiarities of the fish and of secondary aquatic mammals. The quantitative—qualitative blood characteristic of different fish groups is defined not only phylogenetically, but also ecologically. One can get an idea of biological significance of blood peculiarities by simultaneous consideration of both blood amount, concentration of respiratory pigment of blood and power of erythropoiesis centres. The erythropoiesis centres of the aquatic animals are more considerably developed in contrast to the fish. In addition, the aquatic mammals musculature is a strong storage of oxygen containing myoglobin of high concentration. Lack of equal oxygen affinity of haemoglobin in both various species of the fish and the aquatic animals is one of the adaption forms to the specific conditions of aquatic environment. Heterogenous nature of haemoglobins is closely associated with the value of oxygen affinity of haemoglobin.