Consulta: creatorFacets:"Fauvel, Christian"
Registros recuperados: 63
Data/hora: 10/06/2024 16:14:52

Seedling production of Atlantic bluefin tuna (ABFT) Thunnus thynnus. The selfdott project
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00029/14015/11205.pdf

Growth and reproductive performances of juveniles and sexually mature pollack Pollachius pollachius in different conditions
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Omnes, Marie-helene; Severe, Armelle; Barone, Herve; Suquet, Marc; Buchet, Vincent; Le Roux, Annick; Gaignon, Jean-louis; Fostier, Alexis; Fauvel, Christian.
The pollack Pollachius pollachius is a commercially important fish, considered as a candidate for aquaculture in France. Rearing attempts are promising (Suquet et al., 1996), and more information is required about its reproduction, to contribute to a better management of breeders for this species. This study was designed to examine the first maturity in pollack and the effects of conditions such as origin and delayed reproduction season, on gonad maturation, reproductive and growth performances of adults.
Tipo: Text
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00002/11324/7861.pdf

The Nme gene family in fish
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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

Sperm features of captive Atlantic bluefin tuna (Thunnus thynnus)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Suquet, Marc; Cosson, J.; De La Gandara, F.; Mylonas, C. C.; Papadaki, M.; Lallemant, S.; Fauvel, Christian.
P&gt;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
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00015/12645/9722.pdf

X-Linked Retinitis Pigmentosa 2 Is a Novel Maternal-Effect Gene Required for Left-Right Asymmetry in Zebrafish
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Desvignes, Thomas; Nguyen, Thaovi; Chesnel, Franck; Bouleau, Aurelien; Fauvel, Christian; Bobe, Julien.
Retinitis pigmentosa 2 (RP2) gene is responsible for up to 20% of X-linked retinitis pigmentosa, a severe heterogeneous genetic disorder resulting in progressive retinal degeneration in humans. In vertebrates, several bodies of evidence have clearly established the role of Rp2 protein in cilia genesis and/or function. Unexpectedly, some observations in zebrafish have suggested the oocyte-predominant expression of the rp2 gene, a typical feature of maternal-effect genes. In the present study, we investigate the maternal inheritance of rp2 gene products in zebrafish eggs in order to address whether rp2 could be a novel maternal-effect gene required for normal development. Although both rp2 mRNA and corresponding protein are expressed during oogenesis, rp2...
Tipo: Text
Palavras-chave: Developmental biology; Egg developmental competence; Egg quality; Fish; Fish reproduction; Maternal-effect gene; Ndpk; Nme10; Oocyte; Oocyte-specific; Ovum; Teleost; Zygote.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00280/39099/37660.pdf

Maternally Inherited npm2 mRNA Is Crucial for Egg Developmental Competence in Zebrafish
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Bouleau, Aurelien; Desvignes, Thomas; Traverso, Juan Martin; Nguyen, Thaovi; Chesnel, Franck; Fauvel, Christian; Bobe, Julien.
The molecular mechanisms underlying and determining egg developmental competence remain poorly understood in vertebrates. Nucleoplasmin (Npm2) is one of the few known maternal effect genes in mammals, but this maternal effect has never been demonstrated in nonmammalian species. A link between developmental competence and the abundance of npm2 maternal mRNA in the egg was previously established using a teleost fish model for egg quality. The importance of maternal npm2 mRNA for egg developmental competence remains unknown in any vertebrate species. In the present study, we aimed to characterize the contribution of npm2 maternal mRNA to early developmental success in zebrafish using a knockdown strategy. We report here the oocyte- specific expression of npm2...
Tipo: Text
Palavras-chave: Egg quality; Fish; Maternal effect gene; Maternal-to-zygotic transition; Nucleoplasmin; Oocyte developmental competence; Teleost; Zygotic genome activation.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00211/32234/30685.pdf

Human chorionic gonadotropin induces spermatogenesis and spermiation in 1-year-old European sea bass (Dicentrarchus labrax): Assessment of sperm quality
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Schiavone, R; Zilli, L; Vilella, S; Fauvel, Christian.
The aims of the present study were (a) to compare sperm quality (percentage of motile spermatozoa, motility duration, density and fertility after cryopreservation) between precocious and normally maturing male European sea bass Dicentrarchus labrax, (b) to examine the potential of human chorionic gonadotropin (hCG) to increase spermiation in precocious males and (c) to examine the potential of hCG to induce spermatogenesis and spermiation in non-precocious 1-year-old males. One hundred precocious and 100 non-precocious fish were each randomly divided in two groups each: control (precocious saline-treated and non precocious saline-treated) and treated (precocious hCG-treated and non precocious hCG-treated). Treated groups were administered weekly with 1000...
Tipo: Text
Palavras-chave: Dicentrarchus labrax; HCG; European sea bass; Spermiation; Spermatogenesis.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1815.pdf

Evaluation of fish sperm quality
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Fauvel, Christian; Suquet, Marc; Cosson, J.
P&gt;The development of cheaper technical tools and the availability of well established assay kits provide today the spermatologists with several devices for objective and quantifying assessment of sperm quality. The present paper reviews modern methods on sperm concentration assessment, morphometry, motility processes through flagellum studies, motility objective assessment by computer assisted sperm analysis (CASA), sperm integrity and energetic state measurements.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00015/12642/13921.pdf

Diversify: results from the first year of wreckfish (Polyprion americanus) culture
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Peleteiro, J.b.; Linares, F; Vilar, A; Fauvel, Christian; Duncan, N; Rodriguez, C; Izquierdo, M; Mylonas, C.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00307/41772/40987.pdf

Effect of stripping frequency on turbot spawn quality.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Fauvel, Christian; Omnes, Marie-helene; Suquet, Marc; Normant, Yvon.
In production operations the application of daily examination of each female of broodstock should be a determinant progress in hatchery management in terms of fry output.  The eggs expelled shortly after ovulation by means of a systematic fivefold a week stripping attempt of females, presented a high viability rate (72%) compared to that of eggs collected twice a week (46%) whereas the treatments did not have any effect on female fecundity.  Increase of the stripping rhythm brought the hatching rates and broodstock fertilities respectively from 11% to 35% and from 20,000 to 65,000 larvae/kg of spawning female. The enhancement of egg quality and of the resulting larva production is discussed.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00170/28129/26346.pdf

First summary of studies carried out on the grey mullet (Mugil cephalus) in the EU project: diversify
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Koven, W; Rosenfeld, H; Fauvel, Christian; Nixon, O; Meiri-ashkenazi, I; Bitan, A; Robles, R; Kotzamanis, Y; Shafran, G; Papaioannou, N.
The deliverable (D7.1) of WP7 “Establishment of a Computer Assisted Sperm Analysis (CASA) for the evaluation of grey mullet sperm” has been submitted. Preliminary analyses show that mullet sperm motility pattern is not similar to that of sea bass (Dicentrarchus labrax) or rainbow trout (Oncorhynchus mykiss) in terms of velocity as well as motility duration (ca 1 min; Fig. 1a). Our preliminary results, indicate that the major bio-technical settings, dilution of sperm, quality of activation and mastering of video recordings have been determined and can now be applied to experimental protocols. Since fish sperm quality is usually assessed through subjective observation, in terms of motility classes and duration, statistical analysis becomes less precise. The...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00307/41776/40991.pdf

Sperm features in turbot (Scophthalmus maximus): a comparison with other freshwater and marine fish species
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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

Homologous ELISA procedure for the determination of penaeid shrimp vitellogenin
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Mendoza, Roberto; Guillaume, Jean-charles; Fauvel, Christian.
Vitellogenin (VTG) was isolated from the haemolymph of Penaeus vannamei by a three step procedure including ultracentrifugation, gel filtration and ion exchange chromatography. VTG was used to raise polyclonal antibodies that were purified by ion exchange chromatography. A two step competitive assay was developed in which VTG could be quantitated by its capacity to inhibit the binding of antibody to the VTG previously adsorbed onto a solid phase. Sensitivity from equilibrium and from non-equilibrium assays was 41 and 2.3 ng/ml respectively. Estimates of within-assay and between-assay variabilities of standard curves were 4.2 and 9.6% respectively. The inhibition curves for dilutions of haemolymph from vitellogenic females, egg yolk extracts and purified...
Tipo: Text
Palavras-chave: Pénéidé; Vitellogénine; Vitelline; Immuno-essai (ELISA); Anticorps; Penaeid; Vitellogenin; Vitellin; Immunoassay (ELISA); Antibody.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00188/29894/28333.pdf

Description of hake (Merlucius merlucius) spermatozoa: flagellar wave characteristics and motility parameters in various situations
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Cosson, J.; Groison,; Fauvel, Christian; Suquet, Marc.
P&gt;The objective of this study was to complement published hake (Merlucius merlucius) sperm motility characteristics by obtention of data more specifically dependent on flagella: beat frequency, flagellar wave amplitude, wave length, number of waves along the length of the flagellum and curvature of the wave. The changes of these parameters are described in relation to the time period elapsed since activation are described using high resolution video images of flagella while quantifying the progression during the swimming period from the activity initiation to full cessation of movement several minutes later. The main characteristic of the swimming period of hake spermatozoa shows a progressive decrease of forward displacement resulting from a cumulative...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00015/12643/9586.pdf

Pollack (Pollachius pollachius): Acquisition of biologic data in a breeding purpose
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00170/28144/26365.pdf

Nme protein family evolutionary history, a vertebrate perspective
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Desvignes, Thomas; Pontarotti, Pierre; Fauvel, Christian; Bobe, Julien.
Background: The Nme family, previously known as Nm23 or NDPK, is involved in various molecular processes including tumor metastasis and some members of the family, but not all, exhibit a Nucleoside Diphosphate Kinase (NDPK) activity. Ten genes are known in humans, in which some members have been extensively studied. In non-mammalian species, the Nme protein family has received, in contrast, far less attention. The picture of the vertebrate Nme family remains thus incomplete and orthology relationships with mammalian counterparts were only partially characterized. The present study therefore aimed at characterizing the Nme gene repertoire in vertebrates with special interest for teleosts, and providing a comprehensive overview of the Nme gene family...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6947.pdf

La domestication des poissons : le cas du thon rouge
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Fauvel, Christian; Suquet, Marc.
Bluefin tuna shows adaptative physiology features allowing life in a wide range of physical and climatic parameters like temperature, salinity and hydrostatic pressure, hence the species fulfil the main basic requirements for progressive domestication and rearing in captivity. The high mortalities recorded after handling and the losses observed after abrupt variations of environment in the cages, emphasised the extreme sensitivity to stress of tuna. As consequences, the progresses about the control of tuna biological cycle are very slow due to limited handling possibilities and tuna aquaculture is restricted to fattening of wild fish. At this time, bluefin tuna production progresses without domestication of the species.
Tipo: Text
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00272/38283/36473.pdf

Effect of age and environmental conditions on the movement characteristics of Pacific oyster (Crassostrea gigas) trochophores
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Suquet, Marc; Rimond, Flore; Cosson, J.; Wilson-leedy, J.; Lebrun, Luc; Queau, Isabelle; Mingant, Christian; Fauvel, Christian.
The movement characteristics of Pacific oyster trochophores have received very little coverage in the scientific literature. Described here are not only changes in the swimming characteristics of Crassostrea gigas trochophores (size: 53-77 mu m) in relation to time after fertilization and to inter-female variation but also the effects of salinity and pH on movement characteristics. The percentage of motile trochophores was measured on images obtained through a dissecting microscope and the Velocity Average Path (VAP) was assessed using a Computer Assisted Sperm Analysis (CASA) system. At 20 degrees C, the first movements of the trochophores were observed at 6.5 h post-fertilization. The mean (+/- SD) percentage of swimming trochophores and the VAP observed...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00157/26786/24940.pdf

Egg production in the turbot (Scophthalmus maximus) in relation to broodstock management
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Omnes, Marie-helene; Normant, Yvon; Suquet, Marc; Fauvel, Christian.
Egg production data from individual hand stripped female turbot were collected and analysed over several consecutive spawning seasons, on natural or shifted conditions. Egg quantity, egg viability and number of spawns were examined from one spawning season to the other, and inside the spawning season. These parameters seemed to increase from a year to the next one, except for the oldest fishes. Spawns were spread over a three-month period and occurred at the same time in the period in successive seasons for most females. Egg production seemed related to the feeding level and the earliness of spawning season appeared depended on the growth rate. Without sand substrate in tanks, injuries could increase therefore no significant differences were observed in...
Tipo: Text
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00199/31018/29423.pdf

Cryopreservation of sperm in marine fish
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Suquet, Marc; Dreanno, Catherine; Fauvel, Christian; Cosson, J; Billard, R.
Since the first work of Blaxter in 1953, fish sperm cryopreservation has been attempted on about 30 marine species. The present paper reviews the techniques used and the results published in these species. Particular attention is paid to the handling procedure of sperm before freezing, the problems of semen ageing and semen contamination with urine. The quality of frozen-thawed semen was evaluated using previously standardized biotests, such as a two-step motility activation technique adapted for the different species and fertilization assays using a discriminating insemination technique. Most extenders used in marine fish are saline or sugar solutions. From the investigated cryoprotectants, dimethyl sulphoxide (DMSO) generally leads to the best results....
Tipo: Text
Palavras-chave: DMSO; Insemination; Fertilization; Cryopreservation; Fish sperm.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-611.pdf

Actividad tripsina y quimotripsina como indicadores de condición larvaria: estudio de restricción alimentaria y calidad de puesta
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Cara, Beatriz; Moyano, Javier; Zambonino, Jose Luiz; Fauvel, Christian.
Tipo: Text
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00134/24527/22558.pdf

Marine fish spermatozoa: racing ephemeral swimmers
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Cosson, J; Groison, A; Suquet, Marc; Fauvel, Christian; Dreanno, Catherine; Billard, R.
After along period of spermatogenesis (several weeks to months), marine fish spermatozoa are delivered at male spawning in seawater (SW) at the same time as ova. In some fish species, as the ova micropyle closes quickly after release, these minute unicells, the spermatozoa, have to accomplish their task of reaching the micropyle within a very brief period (several seconds to minutes), for delivery of the haploid male genetic information to the ova. To achieve this goal, their high-performance motile equipment, the flagellum, must fully activate immediately on contact with the SW and then propel the sperm cell at an unusually high initial velocity. The cost of such 'hyperactivity' is a very rapid consumption of intracellular ATP that outstrips the supply....
Tipo: Text
Palavras-chave: Cell activation; Osmolality; Ions; Cell energetics; Motility; Spermatozoon; Marine fish.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-6967.pdf

Induced spawning of red drum, Sciaenops ocellatus: use of multivariate and univariate analysis methods in the search for side effects of LH-RHa treatments and ovarian development state upon spawn quality
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Gardes, Lionel; Villanove, Philippe; Buchet, Vincent; Fauvel, Christian.
The present work examines the usefulness of the combination of multivariate analyses and further one-way analysis of variance in the search for links between causes and effects in heterologous stimulation of spawning in fish. Stimulations with both 20 and 50 mu g . kg(-1) doses of [D Trp(6)] luteinizing hormone-releasing hormone analogue (LH-RHa) were effective in inducing and synchronizing spawning of red drum, Sciaenops ocellatus. Oocyte development monitoring using ovarian biopsy allowed treatment injections at different stages of maturation. The influence at stimulation time of female oocyte development state upon further development was shown. An interesting potential of second stimulation, leading to high quality spawns, was established and factors...
Tipo: Text
Palavras-chave: Pisciculture; Induction de la ponte; LH-RH analogues; Analyse multivariée; Qualité des oeufs; Développement ovocytaire; Ombrine; Sciaenops ocellatus; Fish culture; Induced breeding; LH-RH analogues; Multivariate analysis; Egg quality; Oocyte development; Red drum; Sciaenops ocellatus.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00187/29875/28361.pdf

Seasonal variation of sperm quality in Pacific oyster (Crassostrea gigas)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Suquet, Marc; Malo, Florent; Queau, Isabelle; Ratiskol, Dominique; Quere, Claudie; Le Grand, Jacqueline; Fauvel, Christian.
Seasonal changes of sperm quality which can affect sperm biological parameters throughout the breeding period, have been little studied in mollusc species. Controlling gamete quality would aid the management of gametes in hatcheries and the development of selection programs. The aim of the present study was to describe the changes in sperm quality of wild Pacific oysters through the spawning season by comparing sperm parameters at the beginning (May), middle (July) and end (October) of this period using a panel of bio-descriptors. These parameters were studied over the 2014 breeding season based on shed sperm collected after serotonin injection of wild breeders. A significantly higher percentage of motile sperm was observed at the end of the spawning...
Tipo: Text
Palavras-chave: Crassostrea gigas; Sperm quality; Sperm ageing; Season; Motility.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00346/45690/45310.pdf

Cod (Gadus morhua) rearing attempts in France
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Suquet, Marc; Omnes, Marie-helene; Normant, Yvon; Petton, Bruno; Severe, Armelle; Fauvel, Christian; Barone, Herve; Quemener, Loic; Buchet, Vincent; Pasco, Laurent; Menard, E; Gaignon, Jean-louis.
Because of its rapid growth, its good reputation and the promising aquaculture experiences conducted in Norway and Scotland, cod is considered as a good candidate for cold water aquaculture. The aim of this paper is to present the work carried out in France since 1999: the selection of cod as a promising candidate for aquaculture and the assessment of its rearing performances in this environment.
Tipo: Text
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00170/28142/26362.pdf

Characterization of sperm motility in sea bass: the effect of heavy metals and physicochemical variables on sperm motility
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Abascal, F; Cosson, J; Fauvel, Christian.
Computer assisted sperm analysis (CASA) was used to characterize the motility of sea bass Dicentrarchus labrax spermatozoa and to study the effect of several physicochemical variables and heavy metals on sperm swimming performance. Duration of sperm motility in sea bass was very short (&lt; 50 s). During the first 20 s all the motility variables measured remained approximately constant, the velocity and linearity of the movement being maximum during this period, while both variables decreased sharply later. While slight variations in pH did not significantly modify sperm swimming performance, changes in osmolality affected all the measured motility variables. Two of the heavy metals tested, Cu2+ and Pb2+, did not affect sperm motility when the activating...
Tipo: Text
Palavras-chave: Sperm; Heavy metals; Dicentrarchus labrax; CASA.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-4765.pdf

Rearing in captivity affects spermatogenesis and sperm quality in greater amberjack, (Risso, 1810)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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

Slow-release GnRHa therapy prevented atresia during vitellogenesis and induced ovulation of captive wreckfish (Polyprion americanus)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Fauvel, Christian; Suquet, Marc; Severe, Armelle; Mylonas, Constantinos C.; Papandroulakis, Nikos.
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/00346/45750/45392.pdf

Slow-release GnRHa treatment prevented atresia during vitellogenesis and induced ovulation of captive wreckfish (Polyprion americanus)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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

Gamete quality and management for in vitro fertilisation in meagre (Argyrosomus regius)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Ramos-júdez, Sandra; González, Wendy; Dutto, Gilbert; Mylonas, Constantinos C.; Fauvel, Christian; Duncan, Neil.
The aquaculture of meagre (Argyrosomus regius) requires methods for the control of reproduction that enable the production of families from specific individuals for selective breeding programs. We experimentally determined the parameters required for an in vitro fertilisation protocol. A total of 14 females and 5 males (mean ± S.D. weights of 20.45 ± 6.22 and 15.94 ± 2.75 kg, respectively) were used. Selected females had vitellogenic oocytes &gt;550 μm in diameter and males had fluid sperm upon application of abdominal pressure. Both sexes were treated with an injection of 15 μg kg−1 of gonadotropin-releasing hormone agonist (GnRHa) to induce oocyte maturation/ovulation and enhance sperm production. To determine the timing of ovulation and window of high...
Tipo: Text
Palavras-chave: Argyrosomus regius; Meagre; Reproduction; Artificial fertilisation; Gamete management; GnRHa.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00495/60682/64178.pdf

Effect of water temperature on individual reproductive activity of pollack (Pollachius pollachius)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Suquet, Marc; Normant, Yvon; Gaignon, Jean-louis; Quemener, Loic; Fauvel, Christian.
The effects of water temperature on pollack (Pollachius pollachius) spawning features were individually assessed. During the spawning period, nine fish sets, each composed of one female and two males (mean body weight: 2.5+/-1.0 kg), were placed in small-volume tanks (2 m(3)). Fish sets were held at 8, 10, or 12 degreesC (n=3 for each temperature).   Three females released eggs at 8 and 10 degreesC, while only two spawned at 12 degreesC. One hundred thirty-one individual spawns were collected from the eight spawning fish sets. The number of spawns collected per female was significantly lower at 12 degreesC (3.0+/-3.6), compared to 10 degreesC (17.3+/-10.1) and 8 degreesC (23.3+/-2.5). Egg number (eggs kg(-1) BW) was significantly lowered at 12 degreesC...
Tipo: Text
Palavras-chave: Egg quality; Temperature; Reproduction; Pollachius pollachius; Pollack; Gadoids.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-470.pdf

Changes in Atlantic cod (Gadus morhua L.) sperm quality during the spawning season
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Rouxel, Catherine; Suquet, Marc; Cosson, J; Severe, Armelle; Quemener, Loic; Fauvel, Christian.
The biology of cod reproduction is well described in the scientific literature. However, sperm biology and spermatozoa management are poorly studied in this species. Because of its recent farming expansion, a better knowledge of cod gametes is becoming especially useful. This work aimed at establishing tools to study sperm biology in cod, and also investigated the existence of changes in cod sperm quality during the spawning period. We showed that sperm concentration could be assessed using spectrophotometry at 260 nm. Sperm motility significantly decreased after a 168-h storage at 4 degrees C. A 1:9 dilution of sperm in a non-activating medium (1/3 seawater and 2/3 freshwater, osmotic pressure: 360 mOsm kg(-1)) improved sperm storage. Sperm concentration,...
Tipo: Text
Palavras-chave: Spermatozoa; Quality; Ageing; Sperm; Cod; Gadus morhua.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-3829.pdf

Cryopreservation of sea bass (Dicentrarchus labrax) spermatozoa in experimental and production simulating conditions
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Fauvel, Christian; Suquet, Marc; Dreanno, Catherine; Zonno, Vincenzo; Menu, Bruno.
A sperm cryopreservation protocol adapted from turbot, was tested on sea bass using either 250-mu L straws or 1.5-mL cryovials. A dilution to 1/3 in Mounib's extender and a cooling rate of 65 degrees C.min(-1) allowed frozen sperm to recover an initial motility similar to that of fresh sperm at thawing; however, significant differences in motility (P &lt; 0.001, n = 10 fish semen) were observed at further post-activation times, the motility decrease being faster in thawed sperm. At the experimental scale, triplicate inseminations of 2-mL aliquots (approximately 2 000 eggs) showed a significant fertility decay of thawed sperm compared to that of fresh sperm (P &lt; 0.01, n = 12 fish semen) when a discriminating 35.10(3) spermatozoa to egg ratio was applied....
Tipo: Text
Palavras-chave: Dicentrarchus labrax; Sea bass; Cryobank; Insemination; Spermatozoa; Cryopreservation; Dicentrarchus labrax; Loup; Banque de sperme; Insémination; Cryoconservation; Cryoconservation.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/publication-866.pdf

Motility characteristics of spermatozoa in cod (Gadus morhua) and hake (Merluccius merluccius)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Cosson, Jacky; Groison, Anne-laure; Suquet, Marc; Fauvel, Christian.
As in many marine fish, motility is triggered by osmotic pressure (OP) in cod and hake spermatozoa and motility ranges several minutes with a high velocity (above 50 mu m/s) period restricted to 100 s. A decrease in the flagellar beat frequency (BF) is partly responsible of this briefness. Detailed observations of the flagella during the motility period showed: 1) sea water provokes OP damages (blebs) which impair the correct wave propagation 2) waves become restricted to the proximal flagellum and tip becomes devoid of wave 3) the wave amplitude decreases. The combination of these factors drastically limits to the earliest period of motility the ability for spermatozoa to efficiently progress towards egg for fertilization.
Tipo: Text
Palavras-chave: Osmotic pressure; Sperm motility; Spermatozoa; Hake; Cod.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-6552.pdf

Marathon vs sprint racers: an adaptation of sperm characteristics to the reproductive strategy of Pacific oyster, turbot and seabass
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Suquet, Marc; Cosson, J.; Donval, Anne; Labbe, C.; Boulais, Myrina; Haffray, Pierrick; Bernard, Ismael; Fauvel, Christian.
This work assesses the present knowledge on Pacific oyster sperm biology in comparison to two marine fish species (turbot and seabass) whose sperm characteristics are well described. Sperm morphology mainly differs by the presence of an acrosome in Pacific oyster which is absent in both fish species. In turbot as in Pacific oyster, a sperm maturation process along the genital tract is observed. Sperm motility is triggered by changes in osmolality for seabass and turbot and in pH for Pacific oyster. However, complementary factors are involved to maintain sperm immotile in the genital tract. Sperm movement duration is very long in Pacific oyster (2024 h), compared to turbot (35 min) and seabass (4050 s). A high capacity of ATP regeneration is observed in...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00111/22220/20059.pdf

Marine fish culture of "new species" farmed in Europe
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Suquet, Marc; Divanach, Pascal; Hussenot, Jerome; Coves, Denis; Fauvel, Christian.
In Europe, fish aquaculture in a marine environment developed following two successive waves: Atlantic salmon and then sea-bass and sea-bream. Rearing "new marine fish species" is sustained for many complementary reasons. This paper aims at presenting the aquaculture status of these "new species," research carried out and then problems and perspectives suggested by farming development in these species.
Tipo: Text
Palavras-chave: Species; Sea fishes; Fish culture; Europa; Diversification.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6558.pdf

NME family and determination of egg quality, new insights from the zebrafish Danio rerio
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Desvignes, Thomas; Fauvel, Christian; Fostier, Alexis; Bobe, Julien.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00049/16035/13510.pdf

Transcriptomic Profiling of Egg Quality in Sea Bass (Dicentrarchus labrax) Sheds Light on Genes Involved in Ubiquitination and Translation
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Zarski, Daniel; Thaovi Nguyen,; Le Cam, Aurelie; Montfort, Jerome; Dutto, Gilbert; Vidal, Marie-odile; Fauvel, Christian; Bobe, Julien.
Variable and low egg quality is a major limiting factor for the development of efficient aquaculture production. This stems from limited knowledge on the mechanisms underlying egg quality in cultured fish. Molecular analyses, such as transcriptomic studies, are valuable tools to identify the most important processes modulating egg quality. However, very few studies have been devoted to this aspect so far. Within this study, the microarray-based transcriptomic analysis of eggs (of different quality) of sea bass (Dicentrarchus labrax) was performed. An Agilent oligo microarray experiment was performed on labelled mRNA extracted from 16 batches of eggs (each batch obtained from a different female) of sea bass, in which over 24,000 published probe arrays were...
Tipo: Text
Palavras-chave: Microarray; Genomics; Transcriptomics; Aquaculture; Controlled reproduction.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00371/48220/48345.pdf

The quality of great scallop (Pecten maximus) sperm after thawing
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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

Optimizing the exploitation of wild and reared bluefin tunas under the constraint of sustainability: the Ifremer R&amp;D project
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Coves, Denis; Rene, Francois; Fauvel, Christian.
A brief account is given of a research project commenced in 2000 by IFREMER concerning aspects of wild bluefin farming in offshore cages and reproduction control in land-based facilities. Three inter-related sub­ projects have been suggested: (i) wild fish ongrowing and/or fattening; (ii) reproduction; and (Hi) fingerling production and improvement of the understanding of early stage recruitment limitations. The Integration of this project in other EU community activities is discussed.
Tipo: Text
Palavras-chave: Elevage du thon rouge sauvage; Cages offshore; Installations à terre; Production d'alevins; Engraissement; Reproduction; Wild bluefin tuna farming; Offshore cages; Land based facilities; Fattening; Fingerling production; Reproduction.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00372/48347/48517.pdf

Sea bass Dicentrarchus labrax nervous necrosis virus isolates with distinct pathogenicity to sea bass larvae
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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

Sexual maturaty, spawning season and estimation of batch fecundity of swordfish (Xiphias gladius) caught by the reunion-based pelagic longline fishery (SWOI)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Poisson, Francois; Marjolet, Corentin; Fauvel, Christian.
Tipo: Text
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00129/24025/21983.pdf

Rapport de mission aux Etats-Unis du 4 au 22 janvier 1988
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Fauvel, Christian.
During this visit, research work on the physiology and zootechny of reproduction of different US teams were compared to ours. It is clear that we have the same problems to solve and that  research programs are rather similar, but they must take into account the local conditions. This fact limits the possibilities of cooperation. Nevertheless a very good knowledge of each work has been noted.
Tipo: Text
Palavras-chave: Reproduction; Physiologie; Crustacés; Maturation; Zootechnie; Reproduction; Maturation; Physiology; Zootechny.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/00374/48516/48789.pdf

The nme gene family in zebrafish oogenesis and early development
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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

Fertilization strategies for Sea Bass Dicentrarchus labrax (Linnaeus, 1758): effects of pre-incubation and duration of egg receptivity in seawater
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Siddique, Mohammad A. Momin; Butts, Ian A. E.; Linhart, Otomar; Macias, Adrian D.; Fauvel, Christian.
Studying gamete biology can provide important information about a species fertilization strategy as well as their reproductive ecology. Currently, there is a lack of knowledge about how long sea bass Dicentrarchus labrax eggs can remain viable after being activated in seawater. The objectives of this study were to understand the effects of pre-incubation of fresh and overripe sea bass eggs in seawater and to determine the duration of egg receptivity. Pooled eggs (fresh and overripe) from four females were pre-incubated in seawater for 0 min (control), 0.5 min, 1 min, 3 min, 10 min and 30 min and then fertilized by pooled sperm from four males. The fresh eggs had a higher fertilization success than overripe eggs. Our results revealed a significant effect of...
Tipo: Text
Palavras-chave: Egg longevity; Overripe eggs; Reproductive ecology; Mediterranean sea bass; Dicentrarchus labrax.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00279/39000/37580.pdf

Haematological and physiological characteristics of diploid and triploid sea bass, Dicentrarchus labrax L.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Peruzzi, Stefano; Varsamos, Stamatis; Chatain, Beatrice; Fauvel, Christian; Menu, Bruno; Falguiere, Jean-claude; Severe, Armelle; Flik, Gert.
The purpose of this study was to determine whether diploid and triploid sea bass differed in terms of main haematological and physiological characteristics. Diploid and triploid fish were produced by sub-optimal pressure treatments and held in communal environments under standard rearing conditions. Total red blood cell count (RBCC), haemoglobin concentration (Hb), hematocrit (Hct), mean cell volume (MCV), mean cellular haemoglobin content (MCH), mean cell haemoglobin concentration (MCHC), plasma metabolites, osmotic pressure, gill Na+/K+-ATPase activity, electrolytes, cortisol, and 3,5,3'-triiodo-L-thyronine (T-3) were measured and compared. Triploidisation in sea bass led to an increase in erythrocyte size (32% in cytoplasm surface area, and 50% in...
Tipo: Text
Palavras-chave: Dicentrarchus labrax; Sea bass; Triploid; Diploid; Physiology; Haematology.
Ano: 2005
URL: https://archimer.ifremer.fr/doc/2005/publication-508.pdf

Fitness of early life stages in F1 interspecific hybrids between Dicentrarchus labrax and D. punctatus
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Ky, Chin-long; Vergnet, Alain; Molinari, Nicolas; Fauvel, Christian; Bonhomme, Francois.
Inter- and intraspecific crossbreeding experiments were conducted to evaluate the aquaculture potential of hybrids in the genus Dicentrarchus, focusing on fertilisation and hatching success. The experimental design consisted of 24 controlled crosses in which individual and pooled fertilisations were made between wild D. labrax individuals (8 dams and 5 sires originating from West Mediterranean and Atlantic populations) and wild D. punctatus (6 sires). Three experiments were successively performed: (1) dams from the Mediterranean population, individually considered to have good egg quality, (2) dams from Mediterranean population, individually considered to have poor egg quality and (3) crossbreeding using pooled eggs from the Atlantic population. In each...
Tipo: Text
Palavras-chave: Sea bass; Hybrid progeny; Offspring quality; Fitness; Dicentrarchus labrax; Dicentrarchus punctatus.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00078/18881/16451.pdf

Comparative analysis of male germ cell proliferation and apoptosis in wild and captive Atlantic bluefin tuna (Thunnus thynnus L.)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Zupa, R.; Fauvel, Christian; Mylonas, C. C.; Santamaria, N.; Valentini, L.; Pousis, C.; Papadaki, M.; Suquet, Marc; De La Gandara, F.; Bello, G.; Metrio, G.; Corriero, A.
The most commonly observed reproductive dysfunction in male fishes reared in captivity is reduction in sperm volume and quality. The Atlantic bluefin tuna Thunnus thynnus (Osteichthyes: Scombridae) is one of the few large pelagic and migratory marine fishes maintained in captivity with the purpose of establishing breeding populations to support an aquaculture industry. The objectives of the present study were to compare male germ cell proliferation and apoptosis between wild and captive individuals at two different phases of the spermatogenetic cycle, and to evaluate sperm motility characteristics of captive individuals. Histological observations were performed to analyze testicular activity, and germ cell proliferation and apoptosis were evaluated through...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00125/23579/25462.pdf

Reproductive dynamics of swordfish (Xiphias gladius) in the southwestern Indian Ocean (Reunion Island). Part 2: fecundity and spawning pattern
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Poisson, Francois; Fauvel, Christian.
Batch fecundity and relative fecundity of swordfish (Xiphias gladius) in the southwestern Indian Ocean were estimated from seven gravid swordfish females (size range 127-225 cm lower jaw-to-fork length, LJFL) with unovulated, hydrated oocytes collected onboard Reunion-based (France) longline swordfish fishing vessels between December 1999 to January 2001. To investigate the spawning pattern of swordfish, we used data collected through a combination of two at sea sampling regimes. A total of 17 007 geo-located size data of swordfish were recorded during 8 years (1993-2001) and a total of 1727 (size range 75-289 cm, LJFL) swordfish gonads (1107 females and 620 males) were sampled from May 1998 to January 2001. The estimated batch fecundity ranged from 995...
Tipo: Text
Palavras-chave: Xiphias gladius; Swordfish; Reproductive strategy; Gravimetric method; Image processing; Spawning frequency; Indian Ocean; Fecundity; Reproduction.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6354.pdf

La domestication des Gadidés : le cas de la morue et du lieu jaune
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Suquet, Marc; Fauvel, Christian; Gaignon, Jean-louis.
The term "domestication" has a legislative meaning when it applies to species submitted to selection pressures, but also a literary one, according to the time since which the species live closed to men and the possibility of controlling their reproduction. In terms of legislation, none of both species of gadids object of this article, cod and pollack, can be considered as domestic. From a literary point of view, 140 years of research and the control of the reproduction, give to the cod a domestic status. It is not the case with pollack, only studied since ten years and the reproduction of which is still badly controlled. The weak differences observed between the performances of breeding and wild cods focuse the still limited impact of the domestication on...
Tipo: Text
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00272/38282/36471.pdf

Acoustical monitoring of fish density, behavior, and growth rate in a tank
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Conti, Stéphane; Roux, Philippe; Fauvel, Christian; Maurer, Benjamin; Demer, David.
A challenge for the aquaculture community has long been the development of harmless techniques for monitoring fish in a tank. Acoustic telemetry has been used to monitor fish swimming behavior, and passive acoustics have been used to monitor fish feeding, but new techniques are needed to monitor non-invasively their numbers and growth rates. Recently, it has been demonstrated that the acoustical total scattering cross section of fish swimming in a tank can be measured from multiple reverberation time series. These measurements have been used successfully to estimate the number of fish in a tank in laboratory conditions, and to characterize their acoustical signatures. Here, we introduce a novel method for acoustically monitoring fish numerical density and...
Tipo: Text
Palavras-chave: Total scattering cross section; Fish counting; Growth rate; Remote monitoring; Fish behavior.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1121.pdf

Wreckfish (Polyprion americanus). New Knowledge About Reproduction, Larval Husbandry, and Nutrition. Promise as a New Species for Aquaculture
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Pérez, Evaristo; Linares, Fátima; Rodríguez Villanueva, José; Vilar, Antonio; Mylonas, Constantinos; Fakriadis, Ioannis; Papadaki, Maria; Papandroulakis, Nikos; Papadakis, Ioannis; Robles, Rocío; Fauvel, Christian; Roo, Javier; Peleteiro, José; Lluch, Nuria; Pazos, Gema; Méndez, Belén; Sigelaki, Irini; Gómez, Castora; Pérez, Montse; Álvarez-blázquez, Blanca.
Four different wreckfish (Polyprion americanus) broodstock batches were maintained in research facilities under different photo and thermo-period conditions, one in Greece, the Helenic Center for Marine Research (HCMR, n = 3) and three in Spain: Instituto Español de Oceanografía (IEO, n = 13) in Vigo, Aquarium Finisterrae (MC2, n = 21) in A Coruña and Consellería do Mar (CMRM, n = 11). The CMRM includes two centers that work together: Instituto Galego de Formación en Acuicultura (IGAFA) and Centro de Investigacións Mariñas (CIMA), both in Pontevedra. During the five years of the project DIVERSIFY (Exploring the biological and socio-economic potential of new-emerging candidate fish species for the expansion of the European aquaculture industry, 2013–2018)...
Tipo: Text
Palavras-chave: Wreckfish; Broodstock; Larval husbandry; Nutrition; Natural spawns; Live prey; Lipid profile; Ontogeny.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00660/77192/78615.pdf

Reproductive dynamics of swordfish (Xiphias gladius) in the southwestern Indian Ocean (Reunion Island). Part 1: oocyte development, sexual maturity and spawning
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Poisson, Francois; Fauvel, Christian.
The reproductive dynamics of swordfish (Xiphias gladius) was investigated from catches of the Reunion Island-based longline swordfish fishery between 19-25 degrees S and 48-54 degrees E. Thus, 1727 swordfish (size range 75-289 cm, lower jaw-to-fork length, LJFL) were sampled on board commercial fishing vessels during the period of May 1998 to January 2001. Reproductive activity was assessed using macroscopic gonad characteristics, trends of gonadal indexes for both sexes, oocyte size-frequency distributions and microscopic investigation of oocyte development stages. Size at first maturity (L-50) for female and male swordfish was estimated in Indian Ocean for the first time. L50 was estimated at 170 cm and 120 cm (LJFL) for females and males, respectively....
Tipo: Text
Palavras-chave: Indian Ocean; Xiphias gladius; Swordfish; Seasonal distribution; Size at first maturity; Histology; Spawning season; Sex ratio; Reproduction.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6353.pdf

Body reserves mediate trade-offs between life-history traits: new insights from small pelagic fish reproduction
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Brosset, Pablo; Lloret, Josep; Munoz, Marta; Fauvel, Christian; Van Beveren, Elisabeth; Marques, Virginie; Fromentin, Jean-marc; Menard, Frederic; Saraux, Claire.
Limited resources in the environment prevent individuals from simultaneously maximizing all life-history traits, resulting in trade-offs. In particular, the cost of reproduction is well known to negatively affect energy investment in growth and maintenance. Here, we investigated these trade-offs during contrasting periods of high versus low fish size and body condition (before/after 2008) in the Gulf of Lions. Female reproductive allocation and performance in anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) were examined based on morphometric historical data from the 1970s and from 2003 to 2015. Additionally, potential maternal effects on egg quantity and quality were examined in 2014/2015. After 2008, the gonadosomatic index increased for...
Tipo: Text
Palavras-chave: Maternal effect; Northwest Mediterranean; Anchovy; Sardine.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00353/46458/46233.pdf

Some characteristics of sperm motility in European hake (Merluccius merluccius, L., 1758)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Groison, A. -l.; Fauvel, Christian; Suquet, Marc; Kjesbu, O. S.; Le Coz, Jean-rene; Mayer, I.; Cosson, J.
P&gt;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
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00015/12644/9883.pdf

Egg quality in domesticated and wild seabass (D. labrax): a proteomic analysis
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Crespel, Amelie; Rime, Hélène; Fraboulet, Erwann; Bobe, Julien; Fauvel, Christian.
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/00346/45751/45393.pdf

Genetic Inactivation of European Sea Bass (Dicentrarchus labrax L.) Eggs Using UV-Irradiation: Observations and Perspectives
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Colleter, Julie; Penman, David J.; Lallement, Stephane; Fauvel, Christian; Hanebrekke, Tanja; Osvik, Renate D.; Eilertsen, Hans C.; D'Cotta, Helena; Chatain, Beatrice; Peruzzi, Stefano.
Androgenesis is a form of uniparental reproduction leading to progenies inheriting only the paternal set of chromosomes. It has been achieved with variable success in a number of freshwater species and can be attained by artificial fertilization of genetically inactivated eggs following exposure to gamma (gamma), X-ray or UV irradiation (haploid androgenesis) and by restoration of diploidy by suppression of mitosis using a pressure or thermal shock. The conditions for the genetic inactivation of the maternal genome in the European sea bass (Dicentrarchus labrax L.) were explored using different combinations of UV irradiation levels and durations. UV treatments significantly affected embryo survival and generated a wide range of developmental abnormalities....
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00239/34996/33531.pdf

Egg quality in domesticated and wild seabass (Dicentrarchus labrax): A proteomic analysis
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Crespel, Amlie; Rime, Helene; Fraboulet, Erwann; Bobe, Julien; Fauvel, Christian.
In order to improve Our understanding of factors determining egg quality in fish, seabass egg batches obtained from 34 females held under standard conditions, were assessed for biological performances and a fraction from each batch was subjected to proteomic analysis. Comparison of proteomic patterns from eggs of different quality revealed differential protein spots among which one was identified as Nucleoside Diphosphate Kinase, a highly conserved protein involved in cell proliferation. This study shows that molecular markers may help understand factors determining egg quality in fish.
Tipo: Text
Palavras-chave: Seabass; NDK; Egg quality; Proteome.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-6555.pdf

Compte rendu des premières expérimentations de fécondation artificielle chez l'ombrine, Sciaenops ocellatus : études préliminaires de la maturation finale des ovocytes et de la qualité du sperme
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Gardes, Lionel; Buchet, Vincent; Villanove, Philippe; Fauvel, Christian.
Artificial insemination mastery in red drum, Sciaenops ocellatus, requires a first experimental step wOOng at getting basic biological data. Regarding males, a relation between optical density of the solution (OD) measured by spectrophotometry and sperm concentration (SC) has been established : OD O,161*SC + 0,119. Mean sperm concentration measured is 4,36.10 10 spz.mL-1.  This study shows an influence of the solution of dilution on spermatozoa motility and its evolution during short term preservation. As far as females are concemed, the follow-up of final maturation through the observation of samples taken during reguIar strippings, seems to he a good technique to limit overripening and spontaneous liheration of ovules. Some artificial insemination trials...
Tipo: Text
Palavras-chave: Fécondation artificielle; Concentration spermatique; Motilité du sperme; Ovogenèse; Ovulation; Sur maturation; Ombrine; Sciaenops ocellatus.; Artificial insemination; Sperm concentration; Sperm motility; Oogenesis; Ovulation; Overripening; Red drum.; Sciaenops ocella/us.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00366/47755/47801.pdf

Analysis of turbot (Scophthalmus maximus) broodstock pilot scale production.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Omnes, Marie-helene; Normant, Yvon; Suquet, Marc; Fauvel, Christian.
Rearing turbot (Scophthalmus maximus) reaches the commercial scale. With the hatchery output increasing, more attention needs to be focussed on broodstocks performance both in terms of quantity and viability of eggs. The techniques of shifting the environmental conditions allow a production of eggs all year round. However, egg quality tends to be highly variable. This paper examines over a two-year period, the improvement in egg quality and its consequences on the production of larvae by a strict management of spawners.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00169/28061/29430.pdf

Recherche de moyens de dépistage et de prévention de la nodavirose du bar
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00167/27874/26120.pdf

Improvement of chilled seabass sperm conservation using a cell culture medium
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Fauvel, Christian; Boryshpolets, Sergey; Cosson, J.; Leedy, J. G. Wilson; Labbe, C.; Haffray, Pierrick; Suquet, Marc.
The sperm of seabass is very fragile and it quickly loses its ability to fertilize after collection either if kept undiluted or in classic saline media. In order to avoid cryopreservation when only short conservation is required, the process of sperm management including sperm collection, sperm dilution rate in storage medium and storage medium composition, was subject to experimental trials. A concentration of 20% urine generated a low pH of seminal fluid, and it immediately altered the motility ability. However, pH did not seem to be the key agent of motility prevention since sperm dilution in Leibovitz culture medium (L15) or in classic saline medium both presenting a similar low pH (7.3) did not affect motility. L15 increased the duration of sperm...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00111/22221/20066.pdf

Procédures d'échantillonnage pour la conservation des espèces aquacoles dans la Cryobanque Nationale
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00098/20975/18597.pdf