Effects of temperature on sperm motility of burbot Lota lota: spontaneous activation and calcium dependency

Several factors regulating activation of spermatozoon motility in Eurasian burbot, Lota lota, including osmolality, calcium (Ca2+) ions, and temperature were investigated. Spermatozoon motility in Eurasian burbot, Lota lota was assessed at 4 and 30 degrees C in seminal fluid, isotonic media (with an...

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Bibliographic Details
Published in:Journal of Fish Biology
Main Authors: Dadras, Hadiseh, Boryshpolets, Sergey, Golpour, Amin, Policar, Tomas, Blecha, Miroslav, Dzyuba, Borys
Format: Report
Language:English
Published: WILEY 2019
Subjects:
calcium
ion
Lota lota
osmolality
temperature
Fisheries
Marine & Freshwater Biology
SALMO-TRUTTA
BROWN TROUT
SPERMATOZOA
INITIATION
CA2+
POTASSIUM
FERTILIZATION
PERFORMANCE
CHANNELS
Burbot
lota
Online Access:http://ir.ihb.ac.cn/handle/342005/33206
https://doi.org/10.1111/jfb.14110
Description
Summary:Several factors regulating activation of spermatozoon motility in Eurasian burbot, Lota lota, including osmolality, calcium (Ca2+) ions, and temperature were investigated. Spermatozoon motility in Eurasian burbot, Lota lota was assessed at 4 and 30 degrees C in seminal fluid, isotonic media (with and without Ca2+) and hypotonic media (with and without Ca2+). Spermatozoa were spontaneously activated in seminal fluid at 20 degrees C and the maximum motility was recorded at 30 degrees C, which is out of the spawning temperature range, indicating that no risk of activation occurs during routine semen handling in artificial insemination. Initiation of spermatozoon motility in L. lota is mediated by Ca2+ and sensitivity to Ca2+ is dependent on temperature.

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