Data/hora: 06/06/2024 06:49:54

Provedor de dados: 	5	
País: 	France	
Título: 	Sperm features in turbot (Scophthalmus maximus): a comparison with other freshwater and marine fish species	
Autores: 	Suquet, Marc; Billard, Roland; Cosson, Jacky; Dorange, Germaine; Chauvaud, Laurent; Mugnier, Chantal; Fauvel, Christian.	
Data: 	1994	
Ano: 	1994	
Palavras-chave: 	Scophthalmus maximus; Turbot; Biologie du sperme; Liquide séminal; Mobilité du spermatozoïde; Morphologie du spermatozoïde; Poisson marin; Scophthalmus maximus; Turbot; Sperm biology; Seminal fluid; Sperm motility; Sperm morphology; Marine fish.	
Resumo: 	This paper presents some features of turbot sperm and compares them with data reported in the literature on other freshwater and marine fish. In captivity, turbot spermiation period lasts 6 months. When compared to other fish species, turbot males are characterized by low values of maximum gonadosomatic index (0.6-0.8%) and are poor sperm producers in terms of volume (0.2-2.2 ml), concentration (0.7-11.0 x 10(9) spermatozoa/ml) and total sperm number released per stripping (0.2-12.0 x 10(9) spermatozoa). Compared to most freshwater species, the duration of cell movement is long (1-17 min). The spermatozoon of turbot can be considered to be of a primitive type. A very high protein content (8.8 mg/ml) is found in the seminal fluid of turbot. Increasing collection frequency of turbot males, from monthly to fortnightly and weekly stripping, results in the release of successive samples presenting decreasing semen volume and spermatozoa concentration. Similar spermatozoa concentration and total volume of semen produced per turbot, during a 2-month experimental period, are released from males submitted to an annual light and temperature cycle, compared to those receiving a 6 month contracted light and temperature schedule.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/00188/29893/28334.pdf

DOI:10.1051/alr:1994031	
Editor: 	Gauthier-villars	
Relação: 	http://archimer.ifremer.fr/doc/00188/29893/	
Formato: 	application/pdf	
Fonte: 	Aquatic Living Resources (0990-7440) (Gauthier-villars), 1994 , Vol. 7 , N. 4 , P. 283-294	
Fonte: 	IFREMER-Gauthier-Villars