Small Amu Darya Shovelnose Sturgeon (Pseudoscaphirhynchus hermanni)
https://life-on-earth.ru/amu-darya-and-syr-darya-shovelnose-sturgeons/amu-darya-shovelnose-sturgeons-pseudoscaphirhynchus-nukus-balyk-hatchery-brood-stock-data-base/2-uncategorised/125-pseudoscaphirhynchus-hermanni-nukus-balyk-hatchery-brood-stock-inaturalist-321144646#sigProIdde08c1fbd8
The first 15 photos were taken on 04.04.2026
The next 4 photos were taken on 15.10.2025
iNaturalist link:
https://www.inaturalist.org/observations/321144646
Microchip implant 900263004-531354
Implanted 04.04.2026
Video of microchip implanting:
Link to RUTUBE:
https://rutube.ru/video/469be91cd8ba99d249b1d446540d379b/
Origin: The Amu Darya river, town of Pitnak area (Khorezm province, Uzbekistan); 15.10.2025; weight 120 g
The weight data may not be correct before 04.04.2026 due to scales lapse that were not properly checked.
Ultra sound screening with AcuVista VT880a portable water proof ultra sound scanner:
Date: 04.04.2026
Result: female with mature eggs (the 4 th stage)
Weight on 04.04.2026 - 108 g
Biopsy of eggs was taken on 05.04.2026
Result: Polarization factor 0,13-0,14 (not ready to spawn yet)
Water temperature in the pool is + 17,5 oC (beneath spawning temperature)
https://life-on-earth.ru/amu-darya-and-syr-darya-shovelnose-sturgeons/amu-darya-shovelnose-sturgeons-pseudoscaphirhynchus-nukus-balyk-hatchery-brood-stock-data-base/2-uncategorised/125-pseudoscaphirhynchus-hermanni-nukus-balyk-hatchery-brood-stock-inaturalist-321144646#sigProIddb22800ce3
Video of ultra sound screening on 04.04.2026:
Link to RUTUBE:
https://rutube.ru/video/b3dbde8a8eb02984f150a6104bc2662d/