Consulta: subjectFacets:"Hatchery"
Registros recuperados: 42
Data/hora: 06/06/2024 06:12:56

Robustness or resilience? Managing the intersection of ecology and engineering in an urban Alaskan fishery
Provedor de dados: 7
Autores: Krupa, Meagan B.; Alaska Pacific University; mkrupa@alaskapacific.edu; Chapin, III, F. Stuart; University of Alaska Fairbanks ; terry.chapin@alaska.edu; Lovecraft, Amy L.; University of Alaska Fairbanks; allovecraft@alaska.edu.
Tipo: Peer-Reviewed Reports
Palavras-chave: Hatchery; Robustness theory; Salmon; Social-ecological systems; Stream management; Urban fishery.
Ano: 2014

Conséquences génétiques de la production de larves d'huîtres en écloserie : étude des processus de dérive et de sélection
Provedor de dados: 5
Autores: Taris, Nicolas; Sauvage, Christopher; Batista, Frederico; Baron, Sophie; Ernande, Bruno; Haffray, Pierrick; Boudry, Pierre.
Previous studies have shown heritable variation in larval developmental traits in the Pacific oyster Crassostrea gigas. In order to study the genetic consequences of production of oyster larvae in hatcheries, two factors, specific to hatcheries, were examined: the effect of discarding the smallest larvae (i.e. culling) and the effect of temperature (20°C versus 26°C). A mixed-family approach was used in order to infer the genetic composition of larval populations and family assignment, limiting possible environmental bias and allowing the study of a relatively large number of families using a limited number of larval tanks. Our results show that three multiplexed highly polymorphic microsatellite markers are a powerful tool for family assignment and,...
Tipo: Text
Palavras-chave: Hatchery; Genetic diversity; Selection domestication; Larvae; Crassostrea gigas; Ecloserie; Diversité génétique; Sélection domestication; Larve; Crassostrea gigas.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-1505.pdf

Cultures et élevages de masse dans le contexte d'une écloserie-nurserie de mollusques bivalves : les productions phytoplanctoniques et le grossissement des post-larves
Provedor de dados: 5
Autores: Le Borgne, Y.; Marin, J.; Vergonzanne, G.
The hatchery-nursery from the Société Atlantique de Mariculture settled in Barfleur studied within the ECOTRON program set up by C.N.E.X.O. the characteristics of mass cultures for monospecific phytoplancton and of the rearing of oyster spat (Ostrea edulis. Crassostrea giqas) and clam spat (Venerupis semi­decussata) . The maintenance features of the cultures in order to obtain cell densities around 1 million cell/ml. (or 50 g. of dry weight/m3) in containers up to 5000 liters have been established for the main species used in aquaculture (Isochrysis qalbana. Monochrysis lutheri, Tetraselmis suecica. Skeletonema costatum. Phaeodactylum tricornutum. Cyclotella nana, Chaetoceros calcitrans). The spat growth in nursery without providing any cultured food...
Tipo: Text
Palavras-chave: Écloserie; Nurserie; Phytoplancton; Bivalves; Naissain; Hatchery; Nursery; Phytoplancton; Bivalves; Spat.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00305/41658/40867.pdf

Cryopreservation of Pacific oyster ( Crassostrea gigas ) larvae: Revisiting the practical limitations and scaling up the procedure for application to hatchery
Provedor de dados: 5
Autores: Labbe, Catherine; Haffray, Pierrick; Mingant, Christian; Quittet, Benjamin; Diss, Blandine; Tervit, H. Robin; Adams, Serean L.; Rimond, Flore; Suquet, Marc.
Pacific oyster Crassostrea gigas is one major species for aquaculture, and the development of breeding programs and the need for preservation of wild stock genetic resources prompted the need for larvae cryopreservation. The objective of the present study was to choose the most reliable protocol from several existing publications, to test its biological and practical limitations, and to adapt it to hatchery conditions. The selected protocol was characterized by a very slow freezing rate without seeding, and by the use of ethylene glycol and sucrose as cryoprotectant. The best survivals after thawing and rearing up to 48 h post fertilization (hpf) were obtained with larvae that were frozen at late trochophore (20 hpf) and early-D (24 hpf) stages. Increasing...
Tipo: Text
Palavras-chave: Oyster; Cryobanking; D stage; Ethylene glycol; High throughput; Hatchery.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00423/53460/54354.pdf

Conséquences génétiques de la production intensive de larves d'huîtres en écloserie : étude des processus de dérive et de sélection liés aux pratiques d'élevage.
Provedor de dados: 5
Autores: Taris, Nicolas.
In order to study the genetic influence of intensive production of the larval stage in commercial hatcheries, two types of specific selective processes were examined: the effects of discarding the smallest larvae and temperature. A mixed-family approach was used in order to infer the genetic composition of the larvae.  The results show that our mixed-family approach, combined with microsatellite-based family assignment, is a powerful tool for the study of bivalve larvae genetics. Selective sieving is an advantageous practice at a phenotypic scale, but also represents a substantial risk for diversity loss. The culled larvae are important for the minimization of the variability in reproductive success and the maximization of broodstock genetic diversity....
Tipo: Text
Palavras-chave: Hatchery; Oyster; Genetic diversity; Selection domestication; Larvae; Crassostrea gigas; Ecloserie; Huître; Diversité génétique; Sélection domestication; Larve; Crassostrea gigas.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/these-976.pdf

Conception et étude d'un photobioréacteur pour la production en continu de microalgues en écloseries aquacoles
Provedor de dados: 5
Autores: Olivo, Erell.
This thesis describes the conception and the study of a photobioreactor dedicated to aquaculture. The state of the art and the technico-economic constraints proper to this activity led to the choices to a simple reactor, volume variable, cheap to produce and reliable for continuous cultures. The elementary module is made of two vertical columns, connected by flanges. An airlift injection located at the base of the column (airlift reactor) generates a swirling flow circulation in order to minimize the biofilm development on the inner side of the column. A pilot of 6.1 liters has been conceived to study the radiative transfers, the hydrodynamics and the biological cultures in continuous mode. Coupling a radiative transfer model (two flux model) with the...
Tipo: Text
Palavras-chave: Hatchery; Isochrysis affinis galbana microalgae swirl flow airlift continuous culture photobioreactor aquaculture écloserie; Isochrysis affinis galbana microalgues tourbillonnaire airlift culture continue photobioréacteur aquaculture.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2008/these-3847.pdf

Phenotypic and genetic consequences of size selection at the larval stage in the Pacific oyster (Crassostrea gigas)
Provedor de dados: 5
Autores: Taris, Nicolas; Ernande, Bruno; Mccombie, Helen; Boudry, Pierre.
The life histories of oysters in the genus Crassostrea, like those of most marine bivalves, are typified by high fecundity and low survival in nature. Rearing conditions in hatcheries however ensure optimized density, diet, and temperature. Hatcheries are becoming increasingly important for the production of juveniles in aquaculture, and their culture practices often include culling of slow growing larvae to reduce and synchronize the time taken to reach settlement. Because previous studies have found substantial genetic variation for early life developmental traits in Crassostrea gigas, these culling practices are likely to cause highly different selective pressures in hatcheries from those in the natural environment. We studied the phenotypic and genetic...
Tipo: Text
Palavras-chave: Oysters; Larvae; Hatchery; Genetic diversity; Culling; Crassostrea gigas.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1677.pdf

Mass mortalities in hatchery-reared sea bass (Lates calcarifer) larvae associated with the presence in the brain and retina of virus-like particles
Provedor de dados: 5
Autores: Renault, Tristan; Haffner, Philippe; Baudin Laurencien, F.; Breuil, Gilles; Bonami, Jean-robert.
Since 1986, an unknown disease causing high mortalities appeared in Ifremer's Pacific OceanologicaI Center (Tahiti) nursery of sea bass (Lates calcarifer). opathology of lesions involving both centraI nervous system (CNS) and eye retina, and the tuation exists in South-East Asian countries (Indonesia, Philippines, Malaysia and Singapore), and in northem Australia.  This paper describes the histmorphology of a new fish virus, which is believed to be the aetiological agent of high mortalities among sea bass larvae.
Tipo: Text
Palavras-chave: Virus like; Lates calacrifer; Hatchery; Mortality.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-2885.pdf

Substitutes for live microalgae in mariculture: a review
Provedor de dados: 5
Autores: Robert, Rene; Trintignac, P.
In mollusc hatcheries and nurseries, live microalgae are traditionally used as feed for bivalves. Despite recent improvements in efficiency, such intensive culture of microalgae represents major cost factors in the production of bivalve larvae and spat. In an attempt to provide cost-effective alternatives and to simplify hatchery-nursery procedures, non-living algal food has been developed over the past few years. Substitution products such as bacteria, yeast, vitamin or docosahexaenoic acid enriched powders, dry and concentrated microalgae and microcapsules have been tested and evaluated on an experimental scale. The present article reviews major research aimed at developing non living diets in mariculture, which generally resulted in lower growth and...
Tipo: Text
Palavras-chave: Mollusc rearing; Artificial feed; Microalgae; Hatchery; Nursery.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00090/20076/17719.pdf

The role of microalgae in aquaculture: situation and trends
Provedor de dados: 5
Autores: Muller-feuga, Arnaud.
Algae are utilized diversely in aquaculture, but their main applications are related to nutrition. They are used in toto, as a sole component or as a food additive to supply basic nutrients, color the flesh of salmonids or for other biological activities. The need for nutritional sources safer than traditional animal products has renewed interest in plants in general and algae in particular. This report deals principally with the nutritional role of microalgae in aquaculture.The larvae of molluscs, echinoderms and crustaceans as well as the live prey of some fish larvae feed on microalgae. Though attempts have been made to substitute inert particles for these micro-organisms which are difficult to produce, concentrate and store, only shrimp and live prey...
Tipo: Text
Palavras-chave: Shrimp; Post larvae; Phytoplankton; Molluscs; Microalgae; Hatchery; Fish; Aquaculture.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-497.pdf

Selection and characterization of potential probiotic bacteria for Litopenaeus stylirostris shrimp hatcheries in New Caledonia
Provedor de dados: 5
Autores: Pham, Dominique; Ansquer, Dominique; Chevalier, Anne; Dauga, Clement; Peyramale, Aude; Wabete, Nelly; Labreuche, Yannick.
In New Caledonia, shrimp hatcheries are confronted with mass mortality in the larval stages, a phenomenon poorly understood as no specific causative agent has been identified. This has resulted in an excessive use of prophylactic antibiotics, although their adverse effects in aquaculture are notorious. The present work was thus aimed at selecting potential probiotic strains for penaeid hatcheries.  From a pool of more than 400 marine bacterial isolates sampled from the local marine environment seven strains exhibited in vitro antagonistic activity towards Vibrio harveyi. These isolates were characterized both phenotypically and genotypically using a biochemical approach and 16S rDNA sequencing. Six out of these seven strains were found to belong to the...
Tipo: Text
Palavras-chave: Shrimp; Litopenaeus stylirostris; Probiotic; Hatchery; Pseudoalteromonas; Immune response.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00190/30129/28591.pdf

Parallel epigenetic modifications induced by hatchery rearing in a Pacific Salmon
Provedor de dados: 5
Autores: Le Luyer, Jeremy; Laporte, Martin; Beacham, Terry D.; Kaukinen, Karia H.; Withler, Ruth E.; Leong, Jong S.; Rondeau, Eric B.; Koop, Ben F.; Bernatchez, Louis.
A puzzling question in conservation biology is how to maintain overall fitness of individuals  bred in captive environment upon release into the wild, especially for rehabilitating declining or threatened species [1,2]. For salmonid species, a heritable change in fitness related traits and gene expression has been reported to occur in a single generation of captivity in hatchery environment [3–5]. Such rapid changes are congruent with models of  inadvertent domestication selection which may lead to maladaptation in the natural environment [4]. Arguably, the underlying mechanism by which captivity may induce  fitness difference between wild and captive congeners is still poorly understood. Short- term selection on complex phenotypic traits is expected to...
Tipo: Text
Palavras-chave: Epigenetics; Methylation; Coho salmon; Hatchery; RAD sequencing.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00409/52050/52722.pdf

Etudes sur les mortalites larvaires de la coquille st Jacques Pecten maximus en ecloserie
Provedor de dados: 5
Autores: Robert, Rene; Miner, Philippe; Nicolas, Jean-louis; Mazuret, Michel; Connan, Jean-paul.
Larval mortalities occurring in molluscan hatcheries have often been associated with bacterial contamination. Although batches of oyster and clam larvae have been routinely reared in the hatchery of Argenton without antibiotics, high larval mortalities have been recorded with Pecten maxirnus under similar conditions. For this species, an addition of chloramphenicol was found necessary. However, this chemical has now been banned in Europe. Thus either substitition products or an improvement in the rearing procedures is essential. Studies carried out have shown that neither a decrease in larval density (1 larvae. ml"l) nor sea water change frequency (1 per day) had any positive effects. Furthermore, elective substances such as sugars were not suitable and...
Tipo: Text
Palavras-chave: Mortality; Pecten maximus; Hatchery; Larvae; Mollusc; Mortalité; Pecten maximus; Ecloserie; Larve; Mollusque.
Ano: 1995
URL: https://archimer.ifremer.fr/doc/1995/rapport-1568.pdf

1983-2002 : The 20-year development of the King scallop (Pecten maximus) sea-farming industry in the bay of Brest (France) :historical record, results, prospect
Provedor de dados: 5
Autores: Fleury, Pierre-gildas; Carval, Jean-pierre; Muzellec, Marie-louise; Gerard, Andre; Barret, Jean; Cochard, Jean-claude; Dao, Jean-claude.
Tipo: Text
Palavras-chave: France; Fishing management; Seeding; Hatchery; Pecten maximus; King scallop.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/acte-7307.pdf

Bivalve hatchery technology: The current situation for the Pacific oyster Crassostrea gigas and the scallop Pecten maximus in France
Provedor de dados: 5
Autores: Robert, Rene; Gerard, Andre.
The French oyster farming industry relies almost exclusively on juveniles collected from the natural environment; the supply of spat produced by hatcheries is low, about 10% of the industry's requirements. Development through selective breeding of oyster stocks which are better suited for aquaculture purposes, is likely to reverse this tendency since only hatcheries will be able to supply such animals. Scallop farming, which at present is poorly developed in France, relies exclusively on hatchery produced spat. Although hatchery technology is constantly being improved, significant production problems remain which must be solved before hatcheries become a major supplier of juveniles for the industry. This paper describes the present state of hatchery...
Tipo: Text
Palavras-chave: Pecten maximus; Crassostrea gigas; Hatchery; Molluscan rearing; Pecten maximus; Crassostrea gigas; Ecloserie; Élevage de bivalve.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/publication-861.pdf

Comparison of growth, digestive system maturation and skeletal development in sea bass larvae reared in an intensive or a mesocosm system
Provedor de dados: 5
Autores: Zouiten, Dora; Ben Khemis, Ines; Masmoudi, Ahmed Slaheddin; Huelvan, Christine; Cahu, Chantal.
The quality of development in intensive or mesocosm hatchery-reared Dicentrarchus labrax larvae was investigated using physiological indicators assessing ontogeny. Larvae were reared in intensive (120 L tanks) and in mesocosm systems (20 m(3) enclosures) with the same feeding sequence, excluding the wild zooplankton naturally available in mesocosms. Faster growth was recorded since early development [16 day after hatching (DAH)] in the mesocosm. Maturation of the digestive system also occurred earlier as indicated by the higher amylase secretion ratios, the intestinal maturation index (alkaline phosphatase/leucine-alanine peptidase and aminopeptidase-N/leucine-alanine peptidase ratios) and the more developed intestinal epithelium at 23 DAH. Nevertheless,...
Tipo: Text
Palavras-chave: Fish larvae; Hatchery; Mesocosm; Ontogenesis; Enzyme; Skeletogenesis.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00051/16225/14064.pdf

A New Photobioreactor for Continuous Microalgal Production in Hatcheries Based on External-Loop Airlift and Swirling Flow
Provedor de dados: 5
Autores: Loubiere, K; Olivo, Erell; Bougaran, Gael; Pruvost, J; Robert, Rene; Legrand, J.
This study deals with the scale of a new photobioreactor for continuous microalgal production in hatcheries. The combination of the state-of-art with the constraints inherent to hatcheries has turned the design into a closed, artificially illuminated and external-loop airlift configuration based on a succession of elementary modules, each one being composed of two transparent vertical interconnected columns. The liquid circulation is ensured pneumatically (air injections) with respect to a swirling motion (tangential inlets). A single module of the whole photobioreactor was built-up to scale its geometry (diameter and length) and to optimize its design (air sparger, tangential inlets). The volumetric productivities were predicted by modeling radiative...
Tipo: Text
Palavras-chave: Isochrysis affinis galbana; Swirling flow; Airlift; Hatchery; Continuous photobioreactor.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-5288.pdf

La sensibilité des larves de pectinidés aux conditions d’élevage : le flux ouvert comme alternative aux mortalités massives
Provedor de dados: 5
Autores: Holbach, Marine.
In many countries, aquaculture of pectinids depends on the success of artificial spat production in hatchery. This production is always unpredictable due to the variability of hatching rate and larval survival. Flow-through larval rearing systems were developed in Norway for the King scallop Pecten maximus and showed promising results. Unfortunately the system needs to be optimized since the larval yields and the densities used are still relatively low. In France, a small-scale (5 L) and high-density (≤ 300 larva mL-1) flow-through larval rearing system was successfully developed for oysters. First trials in such system and in similar conditions with P. maximus failed as we registered slower growth and high mortality rate in only a few days. It is known...
Tipo: Text
Palavras-chave: Pectinidés; Pecten maximus; Écloserie; Élevage larvaire; Flux ouvert; Contamination bactérienne; Prophylaxie; Physiologie larvaire; Indices de stress.; Pectinids; Pecten maximus; Hatchery; Larval rearing; Flow-through; Bacterial contamination; Prophylaxis; Larval physiology; Stress index.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00259/37000/35491.pdf

L'élevage larvaire de crevettes en Nouvelle-Calédonie. L'Oxytétracycline et l'association Triméthoprime - Sulfadiazine en tant qu'alternatives à l'emploi de l'Erythromycine en écloserie
Provedor de dados: 5
Autores: Francois, Cyrille.
Aquaculture of penaeid shrimps holds a major place in productions of animals. New Caledonia takes part to these productions by developing the breeding of Pacific blue shrimp Litopenaeus stylirostris. Nowadays, penaeid larviculture can’t be undertaken unless antibiotics are used. Experiments in the Caledonian Aquacultural Laboratory (LAC IFREMER Saint-Vincent) put across to the development of two antibiotic prophylaxis plans for substitution of erythromycine, one plan with oxytetracycline (hydrochloride), the other plan with trimethoprime-sulfadiazine association. After an antimicrobial agent susceptibility testing of bacteria and an acute toxicity study, efficacity assays are the biological validation of these projects of protocols
Tipo: Text
Palavras-chave: Crevette; Ecloserie; Oxytétracycline; Triméthoprime; Sulfadiazine; Shrimp; Hatchery; Oxytetracycline; Trimetroprime; Sulfadiazine.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00072/18312/15877.pdf

Response to unintentional selection for faster development associated with inbreeding depression in Crassostrea gigas larvae, resulting from a broodstock selective breeding plan
Provedor de dados: 5
Autores: Taris, Nicolas; Batista, Frederico; Marissal, Eric; Boudry, Pierre.
Direct and indirect consequences of selective breeding in marine bivalves still remain largely unexplored. For species with two-phase life cycle, like the Pacific oyster (Crassostrea gigas), most studies have focused on juvenile and adult stages, but relatively few have focused on juvenile and adult stages, but relatively few have considered the larval stage, especially in a domestication context. We assessed the impact of hatchery practices on larval traits, notably on larval growth (due to the culling of slow growing larvae), by the study of larval progenies. Larvae originating from crosses using parental oysters both from natural beds and from hatchery broodstock which had been selected for adult growth and shell shape for seven generations. A set of...
Tipo: Text
Palavras-chave: Inbreeding depresion; Larvae stage; Genetic variability; Hatchery; Domestication; Genetic; Crassostrea gigas; Oyster.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-3337.pdf

Recherche et identification de bactéries pathogènes au sein d'une écloserie nurserie d'huître creuse, Crassostrea gigas, en relation avec la mortalité estivale du naissain
Provedor de dados: 5
Autores: Waechter, Magali.
Summer mortality has been observed on oyster spat Crassostrea gigas since 1991 on french coasts. In our study, we deseribed symptoms observed during the mortality, especially adductor muscle weakness and we isolated strains on Zobell medium and TCBS from moribund spat. Strains isolated during a high mortality (60 %) were selected by experimental pathology on spat. Inoculation by bath led us to select a pathogenic strain (TNEMF6) for oyster spat. Phenotypic identification, phylogenetic study on 16S rDNA and quantitative DNA/DNA hybridisation showed that this strain belongs to Vibrio splendidus biovar II. Phenotyping and ribotyping with strains isolated during the study showed that only TNNIII7 and TNMB5 are similar to the pathogenic strain TNEMF6....
Tipo: Text
Palavras-chave: Mortalité estivale; Naissain; Crassostrea gigas; Ecloserie; Nursery; France; Bactériologie; Bactérie; Vibrio; Vibrio splendidus biovar II; Summer mortality; Oyster spat; Crassostrea gigas; Hatchery; Nursery; France; Bacteriology; Bacteria; Vibrio; Vibrio splendidus biovar II.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00211/32226/30682.pdf

Etude des processus de dérive et de sélection liés aux pratiques d'élevage en écloserie d'huître creuse
Provedor de dados: 5
Autores: Boudry, Pierre.
Genetic consequences of production of Pacific oyster larval in hatchery: drift and selective pressures related to rearing practices. In order to study the genetic consequences of production of oyster larvae in hatcheries, two factors were examined: the effects of discarding the smallest larvae (i.e. culling) and temperature effects. A mixed-family approach was used in order to infer the genetic composition of the larval population. The results show that high polymorphic microsatellite-based family assignment is a powerful tool for the study of bivalve larvae genetics. Culling by selective sieving is an advantageous practice at a phenotypic scale, but also represents a substantial risk for diversity loss if parentage assignment is not introduced as a...
Tipo: Text
Palavras-chave: Hatchery; Genetic diversity; Selection domestication; Larvae; Crassostrea gigas; Ecloserie; Diversité génétique; Sélection domestication; Larve; Crassostrea gigas.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/rapport-1459.pdf

Le système immunitaire du bar Dicentrarchus labrax. Immunoglobulines, cellules productrices d'immunoglobulines, ontogenèse applications à une pathologie virale néonatale
Provedor de dados: 5
Autores: Breuil, Gilles.
The sea bass, Dicentrarchus labrax, has been subjected to intensive aquaculture on the Mediterranean cost for ten years. Marine fish hatcheries are key factors in the aquaculture field, and face different pathologies, especially one of viral origin (nodavirus) that could challenge their feasibility. Consequently, we have tried to provide some data on larvae and spawning stocks.   Firstly, we have studied the immunoglobulins, components of the specific humoral immunity, and their role as antibodies. On adult basses, these immunoglobulins are tetrameric molecules with high molecular weight (850 kD), made of heavy (H) - 80 kD and light (L) - 26 kD chains. In the eggs, simplest forms such as monomeric or dimeric are brought to the fore; they are located under...
Tipo: Text
Palavras-chave: Egg; Cytometry; Immunity system; Larvae; Immunoglobulin; Nodavirus; Dicentrarchus labrax; Hatchery; Ontogenese; Cytometrie; Immunoglobuline; Nodavirus; Oeuf; Larve; Nurserie; Dicentrarchus labrax.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/these-1265.pdf

Production artificielle de naissain de coquilles Saint-Jacques Pecten maximus (L.). Premiers résultats en rade de Brest
Provedor de dados: 5
Autores: Buestel, Dominique; Cochard, Jean-claude; Dao, Jean-claude; Gerard, Andre.
Artificial production from natural spawners could be a way of getting big quantities of spat of Pecten maximus, ln the method described, larval phase (until a size of 250 microns) occurs in a hatchery, post-Iarval phase (from 250 µ until 3 millimeters) in a nursery, and first growth period directly into the sea (from 2 mm to a size of 25-30 mm), The fifst results obtained, production of several thousand of individuals good enough for reseeding, seem to be transposable to a larger scale.
Tipo: Text
Palavras-chave: Restocking; Intermediate culture; Hatchery; Nursery; Pecten maximus; Repeuplement; Prégrossissement; Ecloserie; Nurserie; Pecten maximus.
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/publication-6529.pdf

Etude comparative du cycle de reproduction de la palourde Ruditapes decussatus en milieu naturel (sud Tunisie) et contrôlé (écloserie)
Provedor de dados: 5
Autores: Hamida, Leila; Medhiouband, Mohamed; Cochard, Jean-claude; Romdhane, Mohamed; Le Pennec, Marcel.
A comparative study of the reproductive cycle of Ruditapes decussatus under natural (South of Tunisia) and controlled conditions (hatchery). The aim of this study was to describe and compare the gametogenic activity of Ruditapes decussatus in situ and in hatchery. Criteria of maturity were characterized and the positive role of conditioning in the success of artificial reproduction was underlined. Specimens sampled in the South of Tunisia were conditioned at the experimental station of Monastir (Tunisia). The parameters studied were the variation of the condition index and the frequency distribution of oocyte diameters. Results showed that the reproductive cycle was continuous in situ. Gametogenesis started in January and February. Gonadic activity...
Tipo: Text
Palavras-chave: Ruditapes; Natural conditions; Hatchery; Reproduction; Gonatic activity; Gametogenesis.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-882.pdf

Effect of the probiotic strain Phaeobacter gallaeciensis after bacterial challenge on the complete larval development of Pecten maximus
Provedor de dados: 5
Autores: Genard, Bertrand; Larouche, Olivier; Nicolas, Jean-louis; Miner, Philippe; Beaudin, Marie-lou; Tremblay, Rejean.
The aim of this project was to evaluate the impact of probiotic (Phaeobacter gallaeciensis, X34 strain) treatment on the complete development (from veliger to metamorphosis) of Pecten maximus larvae in the context of a bacterial challenge and in conditions more representative of hatchery practices. To that effect, the present study was divided into two main steps. In the first, we used in vitro analyses (antibiograms and microplate assays) to validate the inhibition abilities of X34 on the growth of four Vibrio pathogen species. During the second step, we added pathogens (Vibrio pectenicida) into rearing tanks after two weeks of pre-treatment with the probiotic and then followed the larval development of Pecten maximus through the monitoring of survival...
Tipo: Text
Palavras-chave: Probiotics; Hatchery; Bacterial challenge; Larval development; Pecten maximus; Phaeobacter gallaeciensis; Vibrio.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00213/32429/30895.pdf

Mortalités massives en élevage larvaire de Lates Calcarifer ( Mise en évidence d'un virus neurotrope )
Provedor de dados: 5
Autores: Renault, Tristan; Thouard, Emmanuel; Weppe, Maurice.
Since 1986 high mortality of hatchery-reared sea bass, Lates Calcarifer, larvae appeared in Ifremer's Pacifie Oceanological Center (Tahiti). Light and electron microscopy show vacuolation and cells with cytoplasmic inclusion bodies in the brain, the cord and the eye relina of affected larvae. Numerous non-enveloped particles identified as viral units, icosahedral in morphology and measuring about 25 nm in diameter were found in the cytoplasm of the degenerating cells. In affected larvae, these particles were isolated by density grandient centrifugations. In vitro tests on cell lines and in vivo test on fish are performed with samples of diseased larvae. And immunisation of mice are made with purified immunoglobulins of Lates calcarifer.
Tipo: Text
Palavras-chave: Aquaculture; Élevage larvaire; Lates calcarifer; Pathologie; Virus; Spongiose; Aquaculture; Hatchery; Lates calcarifer; Pathology; Virus; Spongiosis.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00142/25306/23378.pdf

Review of the reproductive physiology of the scallop, Pecten maximus, applicable to intensive aquaculture
Provedor de dados: 5
Autores: Devauchelle, Nicole; Mingant, Christian.
This paper presents a summary of information on reproduction biology in the scallop, Pecten maximus, which is required for the successful reseeding and intensive aquaculture programs developed in France since 1982. Data are presented on the following subjects: environmental factors that sustain gametogenic activity and the time of year this activity occurs; biochemical changes that are associated with gametogenesis; the consistency of egg quality; and development of a simple test to predict egg quality.
Tipo: Text
Palavras-chave: Aquaculture; Pecten maximus; Ecloserie; Physiologie de la reproduction; Embryon; Gamète; Aquaculture; Pecten maximus; Scallop; Hatchery; Reproductive physiology; Egg quality; Embryo; Gamete.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00038/14890/12216.pdf

Amélioration des productions phytoplanctoniques en écloserie de mollusques : caractérisation des microalgues fourrage
Provedor de dados: 5
Autores: Robert, Rene; Chretiennot-dinet, Marie-josèphe; Kaas, Raymond; Martin-jezequel, Véronique; Moal, Jeanne; Le Coz, Jean-rene; Nicolas, Jean-louis; Bernard, Eudes; Connan, Jean-paul; Le Dean, Loic; Le Gourrierec, Gaetane; Leroy, Bertrand; Quere, Claudie.
in mollusc hatcheries. Consequently, we assessed themost commonly used species to establish their growth and size profiles, their cytomorphological, biochemical, biomolecular identification as well as their cytometer signs, and also their ability to grow under extreme conditions of temperature and salinity. This work aimed at matching the conformity of the strains used in Argenton (dispatched to most of the French commercial hatcheries) to those of a referenced culture collection. A previous screening preceded this study, because of the 45 species and/or clones held originally, Argenton kept no more than 15 species. As most of the latter are also represented in referenced collection, our strains are therefore correctly identified. On the other hand, the...
Tipo: Text
Palavras-chave: Ecological limits; Biomolecular profile; Flow cytometry; Biochemical composition; Cytomorphology; Phytoplankton; Mollusc; Hatchery; Ecotolérance; Profil biomoléculaire; Cytométrie en flux; Composition biochimique; Cytomorphologie; Phytoplancton; Mollusques; Ecloserie.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/rapport-1546.pdf

Microsatellite markers as a tool to study reproductive success in the Pacific oyster, Crassostrea gigas (Thunberg), under controlled hatchery conditions
Provedor de dados: 5
Autores: Boudry, Pierre; Collet, Bertrand; Cornette, Florence; Hervouet, Veronique; Bonhomme, Francois.
Oysters, like many marine species have a very high fecundity. Previous studies have shown that populations, from both hatcheries and the natural environment, have very low Ne/N ratios. These observations reveal high variation in reproductive success. In order to study individual reproductive success under controlled conditions, we used microsatellite markers to quantify parental contributions in in vitro crosses (5 males and 5 females) of  Crassostrea gigas,  the Pacific oyster. High polymorphism of the microsatellites (more that 50 alleles per locus) eased the parentage identifications. The results of a cross allowing gametic competition were compared with the results from a second cross where the gametes of the same parents were kept separate for each...
Tipo: Text
Palavras-chave: Genetic; Hatchery; Microsatellite markers; Crassostrea gigas; Pacific oysters.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/acte-3457.pdf

Analysis of hemocyte parameters in Pacific oysters, Crassostrea gigas, reared in the field — Comparison of hatchery diploids and diploids from natural beds
Provedor de dados: 5
Autores: Gagnaire, Beatrice; Soletchnik, Patrick; Faury, Nicole; Kerdudou, Nolwenn; Le Moine, Olivier; Renault, Tristan.
Internal defence mechanisms of bivalves include the hemocytes which assume several functions. Relationships exist between environmental factors, physiological state of oysters, defence system and pathogens. Hatchery oysters are more and more produced and reared in the field. The characteristics and particularly the defence system of these animals are poorly documented. In this context, two field trials were carried out from May to September 2002 and from April to July 2003 in order to monitor hemocyte parameters of diploid oysters from natural beds and hatchery-produced diploid oysters using flow cytometry. Several hemocyte parameters (cell mortality, granulocyte percentage, phagocytosis, esterase and peroxidase activities) were monitored. For both oyster...
Tipo: Text
Palavras-chave: Hatchery; Natural beds; Diploids; Flow cytometry; Peroxidase activity; Esterase activity; Phagocytosis; Hemocytes; Crassostrea gigas; Pacific oyster.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3119.pdf

Epigenomic modifications induced by hatchery rearing persist in germ line cells of adult salmon after their oceanic migration
Provedor de dados: 5
Autores: Leitwein, Maeva; Laporte, Martin; Le Luyer, Jeremy; Mohns, Kayla; Normandeau, Eric; Withler, Ruth; Bernatchez, Louis.
Human activities induce direct or indirect selection pressure on natural population and may ultimately affect population’s integrity. While numerous conservation programs aimed to minimize human‐induced genomic variation, human‐induced environmental variation may generate epigenomic variation potentially affecting fitness through phenotypic modifications. Major questions remain pertaining to how much epigenomic variation arises from environmental heterogeneity, whether this variation can persist throughout life, and whether it can be transmitted across generations. We performed whole genome bisulfite sequencing (WGBS) on the sperm of genetically indistinguishable hatchery and wild born migrating adults of Coho salmon (Oncorhynchus kisutch) from two...
Tipo: Text
Palavras-chave: Conservation; Developmental plasticity; Epigenomic; Fisheries; Fitness; Hatchery; Salmonid.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00688/79977/82923.pdf

Establishment of microbiota in larval culture of Pacific oyster, Crassostrea gigas
Provedor de dados: 5
Autores: Asmani, Katia; Petton, Bruno; Le Grand, Jacqueline; Mounier, Jerome; Robert, Rene; Nicolas, Jean-louis.
This study has two main objectives: (1) to implement a recycling aquaculture system (RS) for the larvae of the oyster Crassostrea gigas, and (2) to characterise the bacterial communities established in different compartments of this system. An RS with 25% fresh seawater addition per hour and another with no addition (0%) were compared with a flow-through system (FT). Larval survival was equivalent in RS and FT, but growth rate was 17% slower in RS than in FT. The physical chemical parameters remained stable, except for pH that decreased to 7.75 and salinity that increased to 37.5‰ in the RS 0%. In both systems, the cultivable bacteria were present in similar numbers in seawater (around 105 ml− 1) and in larvae (103 larva− 1) on day 15.  Bacterial...
Tipo: Text
Palavras-chave: RAS; Bivalve larvae; Microbiota; Pyrosequencing; Hatchery.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00346/45691/45311.pdf

The effect of water pH on the incubation and larviculture of curimbatá Prochilodus lineatus (Valenciennes, 1837) (Characiformes: Prochilodontidae)
Provedor de dados: 83
Autores: Reynalte-Tataje,David Augusto; Baldisserotto,Bernardo; Zaniboni-Filho,Evoy.
Different pH levels of water in the incubation and larviculture of 'curimbatá' (Prochilodus lineatus) were tested to evaluate the effect of this variable on the survival and development of eggs and larvae. During incubation, pH of 5.0, 6.0, 7.0, 8.0, and 8.5 was tested. To observe the effects of pH on larvae with different hatchery histories, the following experimental design was utilised (pH incubation - pH larviculture): L 6-6; L 6-7; L 7-6; L 7-7; L 7-8; L 8-7; L 8-8; L 8.5-7, and L 8.5-8.5. At pH 5.0 and four hours after incubation, an almost total mortality of incubated eggs was seen. Eggs incubated at pH 6.0 to 8.5 had similar fertilization and survival rates at the end of incubation, although eggs and larvae incubated at pH 6.0 had a smaller...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish culture; Fish larval physiology; Fish eggs physiology; Hatchery; Water quality.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100179

Optimization of heterologous microsatellites in Piracanjuba
Provedor de dados: 86
Autores: Carmo,Fausto Moreira da Silva; Polo,Érico Macedo; Silva,Marcos Antônio da; Yazbeck,Gabriel de Menezes.
Abstract: The objective of this work was to evaluate 41 microsatellite markers for heterologous amplifications in piracanjuba (Brycon orbignyanus). Some markers were tested for the first time. Loci were optimized for PCR conditions and applied to a sample of 49 individuals. Thirty-one loci resulted in PCR product formation, whereas ten loci yielded intelligible polymorphic patterns in the evaluated sample and can be used for amplifications in this species. From the evaluated markers, four loci (BoM1, BoM13, Bh6, and Bh16) are valid to be applied in the study of piracanjuba.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brycon orbignyanus; Aquaculture; Hatchery; Molecular markers.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015001201236

Estimating the impact of environmental conditions on hatching results using multivariable analysis
Provedor de dados: 89
Autores: Nääs,IA; Gigli,ACS; Baracho,MS; Almeida Paz,ICL; Salgado,DD.
Hatching results are directly related to environmental and biological surroundings. This research study aimed at evaluating the influence of incubation environmental conditions on hatchability and one-day-old chickling quality of five production flocks using multivariable analysis tool. The experiment was carried out in a commercial hatchery located in the state of São Paulo, Brazil. Environmental variables such as dry bulb temperature, relative humidity, carbon dioxide concentration, and number of colony forming units of fungi were recorded inside a broiler multi-stage setter, a hatcher after eggs transference, and a chick-processing room. The homogeneity of parameter distribution among quadrants inside the setter, the hatcher, and the chick room was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler chick; Chick quality; Hatchability; Hatchery; Incubation conditions.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000400004

Action of Antimicrobial Copper on Bacteria and Fungi Isolated from Commercial Poultry Hatcheries
Provedor de dados: 89
Autores: Depner,RFR; Pontin,KP; Depner,RA; Flores Neto,A; Lucca,V; Lovato,M.
ABSTRACT Since 2008, when the US Environmental Protection Agency (EPA) registered copper and its alloys as an antimicrobial agent for contact surfaces, research has demonstrated their antimicrobial activity. The aim of this study was to evaluate the efficacy of antimicrobial copper against bacteria and fungi isolated from commercial poultry hatcheries in order to develop a microbiological control alternative in these environments. Samples were collected from the surfaces of hatcher baskets from two hatcheries. Mesophilic microorganisms and fungi/yeasts were isolated and standardized in concentration of 105 cells/mL. Four copper plates and four stainless steel plates were completely immersed for one minute in bacteria and fungi/yeasts solutions and left to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobial copper; Hatchery; Stainless steel; Copper surfaces.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000600095

Identification of critical points of thermal environment in broiler production
Provedor de dados: 89
Autores: Menezes,AG; Nääs,IA; Baracho,MS.
This paper describes an exploratory study carried out to determine critical control points and possible risks in hatcheries and broiler farms. The study was based in the identification of the potential hazards existing in broiler production, from the hatchery to the broiler farm, identifying critical control points and defining critical limits. The following rooms were analyzed in the hatchery: egg cold storage, pre-heating, incubator, and hatcher rooms. Two broiler houses were studied in two different farms. The following data were collected in the hatchery and broiler houses: temperature (ºC) and relative humidity (%), air velocity (m s-1), ammonia levels, and light intensity (lx). In the broiler house study, a questionnaire using information of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broilers; Hatchery; Quality control.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000100003

Influence of photoperiod on growth, uniformity, and survival of larvae of the Amazonian ornamental  Heros severus (Heckel, 1840)
Provedor de dados: 96
Autores: Veras,Galileu Crovatto; Paixão,Daércio José de Macedo Ribeiro; Brabo,Marcos Ferreira; Soares,Lourdes Marília Oliveira; Sales,Abner Dias.
ABSTRACT The objective of this work was to evaluate the influence of photoperiod on growth, uniformity, and survival of larvae of the Amazonian ornamental fish severum (Heros severus). A completely randomized study was used with five treatments (0L:24D, 6L:18D, 12L:12D, 18L:6D, 24L:0D) and four replicates, with the aquaria as the experimental unit. Two hundred severum larvae (3.20±0.16 mg and 5.60±0.00 mm) were distributed into 20 aquariums of one litre at a density of 10 larvae per litre. For a period of 15 days, feed was supplied four times daily with Artemia nauplii in a proportion of 160 nauplii/larvae/feeding. At the end of the experimental period, growth, uniformity, and survival data were subjected to analyses of variance and significance....
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Circadian rhythm; Hatchery; Live food; Ornamental fish; Severum.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000700422

ผลการกกลูกไก่เนื้อคุณภาพต่ำในโรงฟักก่อนการเลี้ยงเชิงอุตสาหกรรม ต่ออัตราการรอดระหว่างการขนส่ง สมรรถนะการผลิต และคุณภาพซาก
Provedor de dados: 106
Autores: Manat-Sanun Nopparatmaitree; Pornpan Seanphoom; Anunyar Panthong.
This study evaluated the effects of hatching in low performance broiler chicks before industrial production on survival rate and productive performance. Twelve houses of 15,000 birds each, day-old chicks (Ross 308) were assigned to randomized complete block design (RCBD) in a 2×2 factorial arrangement with two factors. Each factor was divided into 3 blocks. Factor A was types of brood (normal and hatchery brood) and factor B was sex (male and female). The results showed that no interaction between survival rate and growth performance in broiler chickens (P&gt;0.05). However, hatchery brood slightly decreased in mortality rate of chickens during transportation and increased survival rate, average daily gain (ADG), average daily feed intake (ADFI), feed...
Tipo: PhysicalObject
Palavras-chave: Brooding; Hatchery; Survival rate; Productive performance; Carcass; Broiler chicks; การกกไก่; โรงฟักไข่; อัตราการรอด; สมรรถนะการเจริญเติบโต; คุณภาพซาก; ลูกไก่เนื้อ; ไก่เนื้อ.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5411

The influence of techniques of larvae rearing and seed collectors on the survival rate and recovery efficiency of the brown mussel Perna perna (L.) in laboratory
Provedor de dados: 52
Autores: Beduschi,Pedro; Melo,Cláudio Manoel Rodrigues de; Ferreira,Jaime Fernando.
Te study compared the hatchery recovery efficiency and survival rate of Perna perna spats using larvae submitted to four conditions, prior to settlement, tested with for different collectors. In 15 days old larvae (eyed larvae, T1), transparent nylon thread collectors presented the best results for spats recovered per meter of collector. The 28 days old larvae (foot larvae) stored under refrigeration before settlement (T3 with water and T4 without water) showed no significant differences between the spat number in all the collectors. The brown multi-thread collector was more efficient in T 4. The blue polyamide thread collector was the most efficient with 28 days old larvae settled directly, without refrigeration (T2). Treatment 1 showed the highest spats...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spats; Settlement; Perna perna; Collectors; Hatchery.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100019

Periphyton biomass on artificial substrates during the summer and winter
Provedor de dados: 65
Autores: Signor,Altevir; Signor,Arcangelo Augusto; Boscolo,Wilson Rogério; Reidel,Adilson; Klein,Sidnei; Feiden,Aldi.
This study evaluated the periphyton production on artificial substrates considering it as a source of low cost live food for fish. Blades of artificial substrates such as wood, black plastic, acrylic, fiberglass, ceramics and glass (all with 144cm2 blades, 24 for each substrate) were submerged 20.0cm below the water column for 35 days in the winter and 42 days in the summer. The blades were randomly installed in 200m3 pond and evaluated for the biomass production at different phases during the summer and winter. Four blades of each substrate were collected weekly, and the periphytic community was carefully scraped with a spatula and fixed in 4% formaldehyde. The periphytic biomass productivity was evaluated by artificial substrate area and per day. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microorganisms-food; Hatchery; Periphyton; Phytoplankton.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000100072