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| Registros recuperados: 63 | |
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| Buchet, Vincent; Suquet, Marc; Omnes, Marie-helene; Petton, Bruno; Normant, Yvon; Severe, Armelle; Quemener, Loic; Barone, Herve; Fauvel, Christian; Gaignon, Jean-louis. |
| The fishing of pollack which concerns essentially, France, United Kingdom and Norway, and at a lower level Ireland and Denmark, is situated between 10 and 15000 tons a year. In 1996, France was the first producer of Pollack. Since 1980, a decrease of production is observed in Europe. In France, landing reached 3000t. in 1998 (Suquet, 2001). However, the demand remaining strong, aquaculture could be a solution to satisfy the deficit between the French production and the domestic demand. |
| Tipo: Text |
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| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00170/28144/26365.pdf |
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| Vandeputte, Marc; Labbe, Catherine; Suquet, Marc; Fauvel, Christian; Goardon, Lionel; Duclos, Delphine; Danchin-burge, Coralie; Vergnet, Alain; Rault, Paul; Degremont, Lionel; Benabdelmouna, Abdellah; Brizard, Raphael; Haffray, Pierrick. |
| Tipo: Text |
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| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00098/20975/18597.pdf |
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| Zupa, R.; Fauvel, Christian; Mylonas, C. C.; Pousis, C.; Santamaria, N.; Papadaki, M.; Fakriadis, I.; Cicirelli, V.; Mangano, S.; Passantino, L.; Lacalandra, G. M.; Corriero, Aldo. |
| The greater amberjack, Seriola dumerili (Risso, 1810), is a promising candidate for the diversification of European aquaculture production, but inconsistent reproduction in captivity prevents commercial production. Recent studies showed that greater amberjack confined in sea cages exhibited scarce gonad development and early interruption of gametogenic activity during the reproductive season. The aim of the present study was to improve our understanding of the observed impairment of spermatogenesis. Adult wild and captive-reared males were sampled during 3 different phases of the reproductive cycle: early gametogenesis (EARLY; late April to early May), advanced gametogenesis (ADVANCED; late May to early June), and spawning (SPAWNING; late June to July).... |
| Tipo: Text |
Palavras-chave: Germ cell apoptosis; Germ cell proliferation; Greater amberjack; Rearing in captivity; Seriola dumerili; Sperm quality. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00395/50613/55414.pdf |
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| Coeurdacier, Jean-luc; Breuil, Gilles; Pepin, Jean-francois; Mouchel, Olivier; Fauvel, Christian; Laporte, Florent; Thiery, Richard; Castric, J; Raymond, Jean-christophe; Baudin Laurencin, Félix. |
| Ce rapport clôture une collaboration, entreprise courant 97, entre l’Agence Nationale pour la Valorisation de la Recherche (ANVAR), l’Agence Française de Sécurité Sanitaire des Aliments(AFSSA), le Syndicat National des Aquaculteurs Marins (SFAM) et l’Institut Français de Recherche pour l’Exploitation de la Mer (IFREMER). Deux lignées de nodavirus infectant le bar ont été mises en évidence avec une pathogénie variable selon l'âge et les facteurs extérieurs. Ce virus s’est montré d’une résistance exceptionnelle aux facteurs tant physiques que chimiques. Les diagnostics existants ont été adaptés ou réabordés sous un angle différent. Une étude épidémiologique a été réalisée chez les producteurs. La vaccination par peptides synthétiques a permis de sélectionner... |
| Tipo: Text |
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| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00167/27874/26120.pdf |
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| Breuil, Gilles; Mouchel, Olivier; Fauvel, Christian; Pepin, Jean-francois. |
| Reproduction of nodavirus disease was performed by experimental infection of sea bass eggs during fertilization or at larval stage 4 with 2 genetically distinguishable nodavirus strains (Sb1 and Sb2) isolated from sea bass collected along the Atlantic and Mediterranean French coast. The pathogenicity of the virus strains was assigned after detection of the virus by ELISA and immunohistochemistry (IHC). The Atlantic (Sb1) strain was more pathogenic than the Mediterranean (Sb2) strain during the fertilization step whilst both strains were pathogenic following experimental exposure of 4 d old larvae. Virus lesions developed in the brain 4 to 6 d following experimental exposure. Experimental ELISA proved very sensitive for detecting the nodavirus in Sb1 or Sb2... |
| Tipo: Text |
Palavras-chave: ELISA; Nodavirus; Fish encephalopathy. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2001/publication-814.pdf |
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| De La Gandara, Fernando; Mylonas, Constantinos C.; Coves, Denis; Ortega, Aurelio; Bridges, Christopher R.; Belmonte Rios, Antonio; Vassallo-agius, Robert; Papandroulakis, Nikos; Rosenfeld, Hanna; Tandler, A; Medina, Antonio; Demetrio, A; Corriero, Aldo; Fauvel, Christian; Falcon, Jack; Sveinsvoll, K; Ghysen, Alain; Deguara, S; Gordin, Hillel. |
| Tipo: Text |
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| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00029/14015/11205.pdf |
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| Fauvel, Christian; Suquet, Marc; Severe, Armelle; Mylonas, Constantinos C.; Papandroulakis, Nikos. |
| The potential of wreckfish (Polyprion americanus) to breed in captivity was examined. Ovarian activity varied seasonally, with vitellogenesis beginning in November and ending in May. Slow-release implant with gonadotropin-releasing hormone agonist (GnRHa) prevented atresia, and both GnRHa injections or implants at the end of vitellogenesis triggered ovulation after 7 days. Spontaneous spawning was obtained only in one female, and the few eggs produced were of poor viability. Manual stripping and artificial fertilization produced viable gametes and embryos. Therefore, present captivity conditions inhibited final oocyte maturation (FOM) and spawning, but not vitellogenesis and spermatogenesis. GnRHa treatments stimulate FOM and ovulation of viable eggs. |
| Tipo: Text |
Palavras-chave: Aquaculture; Polyprion americanus; Wreckfish; GnRHa; Gametogenesis. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-6554.pdf |
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| Groison, A. -l.; Fauvel, Christian; Suquet, Marc; Kjesbu, O. S.; Le Coz, Jean-rene; Mayer, I.; Cosson, J.. |
| P>The objective of this paper is to characterize some of the sperm motility parameters in European hake (Merluccius merluccius), which is considered to be a species with aquaculture potential. The total ATP, ADP and AMP concentrations were determined using high-performance liquid chromatography on hake sperm samples collected during the winter-early spring in the Bay of Biscay (France) (n = 22) and on hake sperm samples collected during the summer-early autumn in waters off Western Norway (n = 5). The Adenylate Energy Charge (AEC) was deduced from these data. Computer Assisted Sperm Analysis (CASA) was used to measure a series of parameters characterizing the motility and the sperm swimming performances. Changes in salinity of the swimming medium... |
| Tipo: Text |
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| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00015/12644/9883.pdf |
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| Suquet, Marc; Billard, Roland; Cosson, Jacky; Dorange, Germaine; Chauvaud, Laurent; Mugnier, Chantal; Fauvel, Christian. |
| 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... |
| Tipo: Text |
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. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00188/29893/28334.pdf |
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| Suquet, Marc; Cosson, J.; De La Gandara, F.; Mylonas, C. C.; Papadaki, M.; Lallemant, S.; Fauvel, Christian. |
| P>The present study aimed to establish some basic characteristics of Atlantic bluefin tuna sperm from captive mature males, treated or untreated by gonadotropin releasing hormones agonist (GnRHa). Intratesticular milt was collected from treated and untreated fish (mean weight +/- SD: 122.9 +/- 29.2 kg, n = 21). There was no significant effect of GnRHa treatment on GSI (1.33 +/- 0.70%, n = 21) or on sperm concentration (3.8 +/- 1.3 x 1010 spermatozoa ml-1, n = 21) estimated by optical density at 260 nm. Similarly, the percentage of motile spermatozoa measured at 30 s post activation: activating medium (AM seawater containing 10 mg ml-1 BSA) was not significantly different between control and GnRHa implanted males. On the other hand, a significantly... |
| Tipo: Text |
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| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00015/12645/9722.pdf |
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| Desvignes, T.; Fostier, A.; Fauvel, Christian; Bobe, J.. |
| The Nme gene family, also known as Nm23 or NDPK, is a very ancient gene family that can be found in all kingdoms of life. In the late eighties, a gene of the Nme family, NME1, was identified as the first metastatic suppressor gene, resulting in a major interest for this family. Due to the complexity of the family, the need for a unified and evolutionary-supported gene nomenclature was recently stressed by the scientific community. Based on a complete evolutionary history study of the gene family in metazoans and vertebrates, a unified nomenclature was recently proposed and accepted by gene nomenclature consortia. In addition to its well-documented role in tumor metastasis, members of the Nme family are also involved in a wide variety of cellular and... |
| Tipo: Text |
Palavras-chave: Nm23; NDPK; RP2; Teleost; Oocyte; Ovary. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00133/24466/22504.pdf |
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| Desvignes, T.; Fauvel, Christian; Bobe, J.. |
| After the recent report of the expression of several nme genes in the zebrafish gonads, the present study aimed at further analyzing the expression of nme genes in the ovary with special attention for the nme transcripts that are maternally inherited and could thus participate in the determination of oocyte developmental competence. The expression levels of all groups I and II nme genes were characterized by QPCR in a panel of zebrafish tissues. The nme genes exhibiting an ovarian expression were subsequently monitored throughout oogenesis and early development, and their expression sites characterized using in situ hybridization. Here, we show that nme2b1, nme3, nme4, and nme6 are highly expressed in the ovary and present in the zebrafish oocyte... |
| Tipo: Text |
Palavras-chave: NDPK; Nm23; Oocyte; Maternal; Teleost; Vertebrate. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00051/16226/13778.pdf |
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| Suquet, Marc; Gourtay, Clemence; Donval, Anne; Le Goic, Nelly; Quere, Claudie; Malo, Florent; Le Grand, Jacqueline; Ratiskol, Dominique; Mingant, Christian; Fauvel, Christian. |
| Most publications devoted to the cryopreservation of mollusc sperm have focused on the definition of technical protocols, avoiding the description of sperm quality after thawing. The present study investigated the effects of cryopreservation on sperm quality in the great scallop. Wild scallop were fished during the natural spawning period and conditioned in the hatchery before use. Sperm samples were obtained after intragonadal injection of serotonin and cryopreserved using a previously published protocol. Sperm quality was assessed using a panel of four parameters: sperm motility characteristics, using a a computer assisted sperm analysis plugin with Image J, intracellular ATP content using an ATP-Lite kit, sperm integrity, using flow cytometry and sperm... |
| Tipo: Text |
Palavras-chave: Pecten maximus; Reproduction; Gamete; Sperm; Cryopreservation. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00317/42862/43912.pdf |
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| Registros recuperados: 63 | |
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