Biological characteristics of European hake (Merluccius merluccius) sperm

Type Article
Date 2008-07
Language English
Author(s) Groison Anne-Laure1, Suquet Marc2, Cosson Jacky3, Le Coz Jean-Rene4, Jolivet Aurelie5, Garren Francois5
Affiliation(s) 1 : Univ Bergen, Dept Biol, N-5020 Bergen, Norway.
2 : IFREMER, PFOM, ARN, F-29840 Argenton, France.
3 : UPMC, CNRS, UMR 7009, Observ Oceanol, F-06230 Villefranche Sur Mer, France.
4 : IFREMER, PFOM PI, F-29280 Plouzane, France.
5 : IFREMER, STH LASAA, F-29280 Plouzane, France.
Source Cybium, Revue Internationale d'Ichtyologie (0399-0974) (Société Française d'Ichtyologie), 2008-07 , Vol. 32 , N. 2 , P. 178
WOS© Times Cited 8
Keyword(s) AEC, Gamete quality, Sperm motility, Sperm Density, Merluccius merluccius
Abstract Very little is known on European hake's reproductive biology and especially on biological characteristics of its sperm despite a growing interest in its aquaculture potential. This study reports, for the first time some hake sperm characteristics. After activation, the swimming phase lasts 3 min (8 min when activated with 50% sea water (SW) but lower initial velocity). The initial flagellar beat frequency (BF), velocity and percentage of motile cells decreased after 100 s. After 2 days at 4 degrees C, the mean Adenylate Energy Charge (AEC) level was 0.71. Sperm stored at 4 degrees C still showed motility after 9 days for 2 individuals. When cryopreserved, the motility recovery index of thawed spermatozoa ranged from 11.8% to 29.6%.
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Groison Anne-Laure, Suquet Marc, Cosson Jacky, Le Coz Jean-Rene, Jolivet Aurelie, Garren Francois (2008). Biological characteristics of European hake (Merluccius merluccius) sperm. Cybium, Revue Internationale d'Ichtyologie, 32(2), 178. Open Access version :