Consulta: subjectFacets:"Red drum"
Registros recuperados: 7
Data/hora: 06/06/2024 10:34:36

L'induction hormonale de la ponte à l'aide de la LH-RH chez l' ombrine, Sciaenops ocellatus. Mise en évidence des conditions optimales pour la production d'oeufs et de larves de qualité
Provedor de dados: 5
Autores: Gardes, Lionel.
20 and 50 µg.kg·1 doses of [D Trp6] LH-RHa analogue proved to be effective in inducing and synchronising spawns in red drum, Sciaenops ocellatus, in the French West Indies tropical conditions. The study of oocyte development through steady ovarian biopsies allowed to carry out injections at different stages. The influence of female ovarian development state at stimulation time on further development is shown. Phase C of germinal vesicle migration stage was identified as an optimum for successful stimulations. An interesting potential of successive stimulations leading to good quality spawns is established and the factors of success identified. The present work shows the  nterest of combined use of multivariate analyses and one way analyse of variance for...
Tipo: Text
Palavras-chave: Induction de ponte; LH-RH analogues; Analyse mutivariée; Qualité des oeufs; Développement ovarien; Ombrine; Sciaenops ocellatus; Induced breeding; LH-RH analogues; Mutivariate analysis; Egg quakity; Ovarian development; Red drum; Sciaenops ocellatus.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00425/53672/54512.pdf

Le concept de biosécurité en pisciculture marine : prévention de l'encéphalite virale chez l'ombrine subtropicale (Sciaenops ocellatus) en Martinique
Provedor de dados: 5
Autores: Adee, Fabrice.
In 1985, red drum (Sciaenops ocellatus) was introduced in Martinique in arder to replace sea bass fish farming. Nodavirus antibodies were detected in the broodstock at the IFREMER station in Robert. Nodavirus is responsible for viral nervous necrosis, a disease that is spreading quickly in worlwide marine aquaculture. A biosecurity process was initiated at the Robert hatchery to select seronegative breeders and produce nodavirus free larvae. This process, based on a serological follow-up of fish antibodies by ELISA, allowed a reduction of the number of seropositive fish. A complementary serological study revealed a low incidence of nodavirus contamination in nodavirus free larvae placed in sea cages on different production sites
Tipo: Text
Palavras-chave: Nodavirus; Encéphalite virale; Sérologie; Ombrine subtropicale; Epidemiologie; Aquaculture; Nodavirus; Viral nervous necrosis; Serology; Red drum; Epidemiology; Aquaculture.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/00446/55734/57386.pdf

Sound production in Sciaenops ocellatus: Preliminary study for the development of acoustic cues in aquaculture
Provedor de dados: 5
Autores: Parmentier, Eric; Tock, Jeremy; Falguiere, Jean-claude; Beauchaud, Marilyn.
The red drum Sciaenops ocellatus is an estuarine-dependent sciaenid that has supported important recreational and commercial fisheries for many years. Since the 1980s, this species has been farmed in different regions of the world and studies have been conducted to find natural ways to improve its culture. Sciaenops ocellatus is well known for making calls but studies on this characteristic have been mainly restricted to passive acoustics. The aim of this study was to provide acoustic-related information that could be useful in rearing practices. We have studied in detail fish calling characteristics, described their sound-producing mechanism and tested the recordings in different kinds of confinements (floating cages, concrete and fibreglass tanks)....
Tipo: Text
Palavras-chave: Acoustic; Red drum; Sonic; Muscle morphology.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00190/30127/28589.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: 5
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

Effect of lipid level in a compound diet on the development of red drum (Sciaenops ocellatus) larvae
Provedor de dados: 5
Autores: Buchet, Vincent; Zambonino, Jose-luis; Cahu, Chantal.
Red drum larvae were fed from day 11 to day 24 post-hatch, with Artemia (LP group) or two isoproteinic-formulated diets with varying lipid levels, 15% (L15 group) and 30% (L30 group). The lipid fraction was composed of a mixture of cod liver oil and soy lecithin. Larvae fed Artemia exhibited the greatest length, L30 diet induced a larvae length significantly greater than that obtained with L15 diet (P &lt; 0,05). No difference was observed in larvae survival among the three dietary groups. The increase in dietary lipid concentration led to an increase in amylase and trypsin secretion levels in 24-day-old larvae. The pancreatic secretion level measured in L30 group was close to that of LP group, suggesting that the maturation of the pancreatic functions was...
Tipo: Text
Palavras-chave: Gut maturation; Digestive enzymes; Compound diet; Lipid; Larvae; Red drum.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-503.pdf

Scenarios of fish waste deposition at the sub-lagoon scale: a modelling approach for aquaculture zoning and site selection
Provedor de dados: 5
Autores: Chary, Killian; Callier, Myriam; Coves, Denis; Aubin, Joel; Simon, Julien; Fiandrino, Annie.
Spatial planning, including zoning and site-selection steps, is necessary to determine locations that minimize environmental impacts of aquaculture and respect ecosystem carrying capacities. This study aimed to analyse potential benthic waste deposition in a broad range of fish farming situations to facilitate zoning. To this end, we simulated waste dispersion for 54 aquaculture scenarios combining three red drum (Sciaenops ocellatus) farm types (Small, Medium, and Large) based on real farm characteristics and 36 sites with contrasting hydrodynamics in Mayotte’s North-East Lagoon. Key forcing variables and parameters of the particle-dispersion model for farms (layout and solid waste fluxes), species (feed- and faeces-settling velocities) and sites (depth...
Tipo: Text
Palavras-chave: Aquaculture zones; Carrying-capacity; Environmental impact; Hydrodynamics; NewDEPOMOD; Particle dispersion; Red drum; Scenario analysis.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00666/77810/79985.pdf

Modeling sea cage outputs for data-scarce areas: application to red drum (Sciaenops ocellatus) aquaculture in Mayotte, Indian Ocean
Provedor de dados: 5
Autores: Chary, Killian; Fiandrino, Annie; Coves, Denis; Aubin, Joel; Falguiere, Jean-claude; Callier, Myriam.
Robust and accurate prediction of fish farm waste is a first and crucial step in managing the cause-effect chain that leads to local environmental impacts of aquaculture. Since aquatic production is diversifying with new fish species and extending to new areas for which data can be scarce, it is important to develop parsimonious approaches with fewer data requirements and less scientific complexity. We developed the Farm productIon and Nutrient emiSsions (FINS) model, which simulates fish farm operation and estimates fish biomass, feed inputs, and waste emissions from sea cages using simple modeling approaches and a variety of data sources. We applied FINS to red drum (Sciaenops ocellatus) culture in Mayotte by collecting relevant input data (growth,...
Tipo: Text
Palavras-chave: Aquaculture waste modeling; CNP mass balance; Farming scenarios; Feed digestibility; Individual-based growth model; Red drum.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00498/61003/64475.pdf