COMPOSITION OF THE BLOOD SERUM OF DEEP-SEA FISHES
| Autor: | Robert W. Griffith |
|---|---|
| Rok vydání: | 1981 |
| Předmět: | |
| Zdroj: | The Biological Bulletin. 160:250-264 |
| ISSN: | 1939-8697 0006-3185 |
| Popis: | Serum osmolarity, chloride, urea, protein, and trimethylamine oxide were measured in 15 shallow water marine teleosts, 6 elasmobranchs, 9 deep benthic teleosts, and 24 midwater teleosts. Amino acids, carbohydrates, phosphate, and hematocrits were determined for some species from these four groups. Elasmobranchs had high osmolarity (1035 mOsm/l) because of high serum urea (363 mM/l), TMAO (66 mM/l), and chloride (295 mM/l). Shallow water teleosts had low osmolarity (444 mOsm/l), chloride (176 mM/l), urea (4 mM/l), and TMAO (14 mM/l). Deep benthic teleosts had higher osmolarities and chloride levels (576 mOsm/l, 242 mM/1) than shallow water teleosts, as did midwater teleosts (561 mOsm/l, 267 mM/1). Serum TMAO was high in benthic (51 mM/l), but not midwater (12 mM/l) teleosts, and urea was low in midwater (1.0 mM/l) and benthic (1.5 mM/l) groups. Stress and morbidity raise osmolarity and chloride in marine teleosts and may account for high values in midwater and benthic fishes, which were sampled after consi... |
| Databáze: | OpenAIRE |
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