Morphology, chemical contents and physiology of chondrostean fish sperm: a comparative study between Siberian sturgeon (Acipenser baerii) and sterlet (Acipenser ruthenus)

0366279 - BC 2012 RIV DE eng J - Journal Article
Pšenička, M. - Hadi Alavi, S.M. - Číčová, Zdeňka - Gela, D. - Cosson, J. - Nebesářová, Jana - Linhart, O.
Morphology, chemical contents and physiology of chondrostean fish sperm: a comparative study between Siberian sturgeon (Acipenser baerii) and sterlet (Acipenser ruthenus).
Journal of Applied Ichthyology. Roč. 24, č. 4 (2008), s. 371-377. ISSN 0175-8659. E-ISSN 1439-0426
Grant - others:GA ČR(CZ) GA524/06/0817
Program: GA
Institutional research plan: CEZ:AV0Z60220518
Keywords : NORTH-AMERICAN STURGEONS * TRANSMISSION ELECTRON-MICROSCOPY * CELL ULTRASTRUCTURE * SHOVELNOSE STURGEON * LAKE STURGEON * MOTILITY * SPERMATOZOA * PADDLEFISH * SALMON * OSMOLALITY
Subject RIV: EC - Immunology
Impact factor: 0.638, year: 2008

The present study was carried out with two sturgeon species, Siberian sturgeon (Acipenser baerii) and sterlet (A. ruthenus) to compare spermatological parameters to better Understand inter-species differences. Significant differences between morphometric features were observed such as acrosome length, acrosome width, head length, midpiece width and flagellar length. while midpiece length did not reveal such differences. The sterlet has a shorter spermatozoon than the Siberian sturgeon. Ultrastructural parameters vary significantly in terms of length of the nucleus, diameter of the endonuclear canals (EC), size of posterolateral projections (PP) and diameter of flagellum. Significant differences were observed in Na(+), K(+) and Cl(-) concentrations in the seminal plasma as well as in sperm velocity.The observed biochemical and physiological differences should be also considered for the development of methods for controlled reproduction and for sperm cryopreservation techniques.
Permanent Link: http://hdl.handle.net/11104/0201329