• Creatinine with high level;
• In urine: urea increased 33 times compared to blood value and creatinine
increased 66 times;
• Concentration of urine is 1040;
• Nephron segment with resorption activity is lower (36% compared with terrestrial mammals where is 70–80% of tube) (The Structure and Adaptation to
Living Marine).
28.4 Conclusions
1. Dolphins kidney it’s like a “bunch” being composed from approximately
500 lobes. This increases cortical surface about 960 cm
2 .
2. Nephron number of a middle rencul is 21.000 with a total of 22 million for both
kidneys.
3. Glomerulus has 130/100 microns, and the renal tube measures 18.57 mm.
Fig. 28.3 Dolphin kidney –
outward appearance
28 The Black Sea Dolphin Nephron Studied by Romanian Nobel Laureate George. . .
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