SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Production de juvéniles de bar (Dicentrarchus labrax) en marais. Etude de trois séquences alimentaires de sevrage

Nascetti, G; Bondanelli, P; Aldinucci, A; Cimmaruta, R.

Eight populations of Artemia displaying different reproduction modalities (amphigonic vs. parthenogenetic) and ploidies (diploid vs. polyploid) have been collected from Italian salt-works or brackish coastal lagoons, and their genetic structure has been investigated using allozyme electrophoresis. The results obtained on genetic differentiation showed that the Tyrrhenian bisexual samples (A. salina) are genetically homogeneous even between populations located in relatively faraway sites (Sardinia-Latium), having a moderate gene flow assisted by migratory waterfowl. The parthenogenetic samples (A. parthenogenetica) are genetically well differentiated both from the bisexual ones and among them, even when characterised by the same ploidy. Each sample presents...

Tipo: Text

Palavras-chave: Artemia; Allozymes; Reproduction amphigonique; Parthénogenèse; Hétérozygotie; Artemia; Allozymes; Amphigony; Parthenogenesis; Heterozygosity.

Ano: 2003

URL: http://archimer.ifremer.fr/doc/00322/43289/43024.pdf

Action des chocs thermiques sur le developpement d'Artemia

Buchet, Vincent; Palvadeau, Hubert; Boussard, O..

Trials on the seabass weaning in atlantic marshes (Roux, 1993), have shown that the use of frozen prey improved this step and reduced his resulting stress. During the present study, which must confirmed these preliminary results, three alimentary sequences were tested. 1) natural zooplankton, weaning pellets, as control, 2) natural zooplankton, inert artemia (intensively produced), weaning pellets, 3) natural zooplankton, natural frozen zooplankton (harvested), weaning pellets. The achieved results show that weaning with intermediary phases (sequences 2 or 3) yield best results. Furthermore the phase with artemia yields, systematically, better results than with harvested zooplankton ; then artemia seems a excellent substitute food representing a...

Tipo: Text

Palavras-chave: Bar; Dicentrarchus labrax; Juvéniles; Elevage extérieur; Sevrage; Artémias; Zooplancton; Seabass; Dicentrarchus labrax; Juvenile; Outdoor rearing; Weaning; Artemia; Zooplankton.

Ano: 1995

URL: http://archimer.ifremer.fr/doc/00425/53683/54527.pdf

Selection of lactic acid bacteria as candidate probiotics and in vivo test on Artemia nauplii

Hernandorena, A.

Heat shocks at 40 degree were delivered to Artemia at the end of embryonic development and at the beginning of postembryonic development and their effects on subsequent development examined. Heat shocks delivered during preemergence development have no effect on subsequent development. Heat shocks delivered to newly hatched nauplii induce anomalies on the morphogenesis of thoracic and genital appendages. The induction of morphological anomalies by thermal conditions prevailing during early larval life makes it easier to integrate the morphological effects previously induced by nutritional conditions imposed to older feeding stages.

Tipo: Text

Palavras-chave: Artemia; Branchiopoda; Morphogenesis; Embryonic development.

Ano: 1987

URL: http://archimer.ifremer.fr/doc/1987/acte-1377.pdf

Utilisation de bactéries lactiques probiotiques pour prémunir les poissons d'élevage contre des vibrions pathogènes

Lamari, Faouzi; Sadok, Khouadja; Bakhrouf, Amina; Gatesoupe, Joel.

Lactic acid bacteria (LAB) were isolated from rotifer cultures in a marine hatchery to search for potential probiotics for marine animals. Fifteen strains were first selected among a total of 55, according to antibacterial activity against Vibrio sp. Among eight strains identified as Lactobacillus casei, four were highly adhesive, suggesting some ability for surface colonization. The other strains were identified as Lactobacillus plantarum, Lactobacillus dextrinicus, and Leuconostoc sp. To validate probiotic potential, Artemia were challenged against pathogenic Vibrio alginolyticus, with or without one of six selected LAB strains. The six strains protected Artemia against the pathogen, to some extent on condition that nutrient enrichment was provided. La....

Tipo: Text

Palavras-chave: 16S rDNA; Antagonism; Artemia; Lactic acid bacteria; Vibrio.

Ano: 2014

URL: http://archimer.ifremer.fr/doc/00154/26511/24767.pdf

Probiotic and formaldehyde treatments of Artemia nauplii as food for larval pollack, Pollachius pollachius

Lamari, Faouzi.

Diseases cause major production losses in fish farms. Bacteria of the genus Vibrio are known as opportunistic pathogens, and have been associated with mass-mortality episodes. To cope with these disease outbreaks, fish farmers often resort to the use of antibiotics. However, preventive overuse has led to the emergence of resistant strains and frequent treatment failures. Probiotic lactic acid bacteria are increasingly used to improve the quality of seed production in aquaculture, while limiting antibiotic treatments. Microbial strains must fulfil several criteria to be evaluated as potential probiotics.In a first step, we selected and characterized 55 strains of lactic acid bacteria isolated from fish hatchery. The first selection criterion focused on the...

Tipo: Text

Palavras-chave: Probiotiques; Microflore intestinale; Réponse immunitaire; Stress oxydatif; Malformations vertébrales; Ossification; Oxidative stress; Vertebral malformations; Dicentrarchus labrax; Artemia; Vibrio; Probiotic; Intestinal microflora; Immune response.

Ano: 2014

URL: https://archimer.ifremer.fr/doc/00498/60943/64336.pdf

Evaluation of microdiets versus live feeds on growth, survival and fatty acid composition of larval haddock (Melanogrammus aeglefinus)

Gatesoupe, Joel.

Formaldehyde was used to disinfect Artemia cysts and nauplii, while introducing two probiotics in the enrichment process: Bactocell (Pediococcus acidilactici) and Levucell (Saccharomyces cerevisiae). The disinfectant was selected due to its potential compatibility with probiotics, since it was more effective against Gram-negative bacteria than against lactic acid bacteria and yeast. However, the presence of formaldehyde reduced the intake of P. acidilactici in Artemia. Consequently, the disinfection was stopped before Bactocell supplementation to the nauplii fed to pollack (Pollachius pollachius) larvae. The mean weight of pollack was higher with this probiotic treatment. Growth was even better with the combination of Levucell and Bactocell, but the yeast...

Tipo: Text

Palavras-chave: Drug resistance; Bacterial genotype; Disinfection; Probiotic; Artemia; Marine fish larvae.

Ano: 2002

URL: http://archimer.ifremer.fr/doc/2002/publication-393.pdf

Blair, Tammy; Castell, Fisheries And Oceans Canada; Neil, Steven; D'Abramo, Louis; Cahu, Chantal; Harmon, Paul; Ogunmoye, Kehinde.

Until recently, it was considered impossible to feed newly hatched marine fish species with a compound diet. Substituting a compound diet for live prey was performed several weeks after hatching, depending on the species. Compound diets were well ingested at the early stage but larvae died with a gut full of food, suggesting that larvae were unable to digest the compound diet. The hypothesis was that younger larvae have insufficient digestive enzymes to thrive on compound diets, and that exogenous enzymes, provided from live prey, are necessary for early stages. The organogenesis of marine fish larvae is not completely achieved at hatching and histological studies have revealed that the anatomy of the digestive tract undergoes developmental changes over...

Tipo: Text

Palavras-chave: Highly unsaturated fatty acids; Essential fatty acids; Survival; Growth; Artemia; Brachionus plicatilis; Microdiet; Haddock larvae.

Ano: 2003

URL: https://archimer.ifremer.fr/doc/2003/publication-445.pdf

Contribution a l'etude de l'elevage de la crevette rose Palaemon serratus (Pennant) en captivite.

Exploitation et optimisation de la production des cystes du crustacé "Artemia tunisiana" (bowen et sterling, 1978) dans la saline de Sfax

Campillo, Albert.

The growth of post-larval P. serratus has been studied until the appearance of secondary sexual characters, in order to eliminate the influence of sex ratio on the mean wt. The influence of temp on intermolt period and number of molts was observed in male and female kept individually. Different sorts of food of natural origin have been tested. The rearing of post-larval lots metamorphosed at different times of the yr showed that the growth of P. serratus is conditioned not only by the temp, but also by the season. The food conversion ratio was defined in relation to the sex and age of the prawns. Shelters allowed the author to obtain a ratio of survival which varied post-larvae per square meter. The sex ratio established from several breedings as soon as...

Tipo: Text

Palavras-chave: Phaeodactylum tricornutum; Tetraselmis suecica; Artemia; Palaemon serratus; Crustacean culture; Larval development; Larvae; Induced breeding; Hatching; Controlled conditions; Laboratory culture; Rearing.

Ano: 1975

URL: http://archimer.ifremer.fr/doc/1975/publication-2027.pdf

OceanDocs

Aloui, N.; Amorri, M..

La saline de Sfax constitue le meilleur site pour l’exploitation et la production d’Artemia en Tunisie. La production de cystes est exploitée chaque année pour être utilisée dans l’alimentation des larves de poissons. Cette production est estimée à 30 kg de cystes poids sec. Toutefois, lors de nos campagnes de récolte, nous avons enregistré de grandes pertes de cystes occasionnées par les vents emportant les cystes qui seront mélangés avec le sable. Afin de minimiser les pertes et optimiser la production naturelle de la saline, nous avons jugé utile, d’installer des barrages dans les coins des bassins à Artemia pour s’opposer à l’action du vent. Par ailleurs, nous avons fait un suivi mensuel de l’abondance des cystes récoltés et de quelques paramètres...

Tipo: Journal Contribution

Palavras-chave: Barriers; Brine shrimp culture; Dissolved oxygen; Environmental conditions; Exploitation; Feeding; Fish larvae; Food organisms; Salinity effects; Spatial variations; Temporal variations; Cysts; Artemia culture; Prawns and shrimps; Crustaceans; Artemia.

Ano: 2009

URL: http://hdl.handle.net/1834/4747

Etude d’impact des métaux traces (Hg, Cd, Pb, Cu et Zn) dans les cystes et la biomasse "d’Artemia" exploités dans la saline de Sfax

OceanDocs

Aloui, N.; Amorri, M.; Choub., L..

RESUME La saline de Sfax constitue un site potentiel pour l’exploitation et la production de l’Artemia locale. Des quantités importantes d’Artemia sont exploitées chaque année (60 kg de cystes poids sec) et sont utilisées en alimentation larvaire. Afin de démontrer l’impact de divers rejets industriels, agricoles dans cette saline, nous avons procédé à la détermination de quelques métaux traces toxiques : le mercure (Hg), le cadmium (Cd), le plomb (Pb), le cuivre (Cu) et le zinc (Zn) par une analyse en spectrophotométrie d’absorption atomique, ce qui nous permettra d’évaluer le degré de contamination par ces métaux dans les cystes et la biomasse d’Artemia. Les résultats obtenus ont montré que les concentrations aussi bien au niveau des cystes que de la...

Tipo: Journal Contribution

Palavras-chave: Aquatic pollution; Artemia culture; Artemia; Heavy metals.

Ano: 2010

URL: http://hdl.handle.net/1834/4729

Report d’une nouvelle population d’Artemia (Branchiopoda, crustacea) en Tunisie : Sabkhet Halk el Menzel

OceanDocs

Ben Naceur, H.; Ben Rejeb Jenhani, A.; Romdhane, M .S..

Le branchiopode Artemia représente le principal organisme vivant colonisant les biotopes hypersalés. L’étude taxonomique de l’Artemia au niveau de la région ouest méditerranéenne, incluant l’Italie, la France, l’Espagne, le Portugal et le Maroc, a révélé la présence de l’espèce Artemia franciscana (qui a pour origine le continent Américain) comme étant une espèce invasive. Dans ce travail, une nouvelle population d’Artemia a été rapportée pour la première fois au niveau de Sabkhet Halk El Manzel. Une première identification taxonomique de cette population a été réalisée moyennant une étude morphologique et comparative de la forme de l’ovisac des femelles avec cinq autres populations tunisiennes appartenant à l’espèce Artemia salina et avec l’espèce...

Tipo: Journal Contribution

Palavras-chave: Brine shrimp culture; Saline water; Artemia.

Ano: 2011

URL: http://hdl.handle.net/1834/4740

Artemia in aquatic toxicology: a review

Persoone, G.; Wells, P.G..

Due to commercial availability of dried cysts from which live test material can be hatched at will, Artemia is used extensively in research and applied toxicology.Despite the extensive literature on dose-effect relationships of chemicals on brine shrimp, it was not until 1980 that an experimental protocol was developed for a simple acute toxicity test with Artemia nauplii, meeting the prerequisites for standardization.The reliability and accuracy of this short-term test were determined during an intercalibration exercise involving 80 laboratories and were found to be quite satisfactory. Consequently, the so-called ARC-test, which is one of the very few standardized marine toxicity tests, is now used routinely at the...

International study on Artemia : 17. Energy consumption in cysts and early larval stages of various geographical strains of Artemia

Palavras-chave: Artemia.

Ano: 1987

URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3200

Vanhaecke, P.; Lavens, P.; Sorgeloos, P..

Variations in dry weight, caloric content and ash content during cyst hatching and early larval development have been studied for various geographical strains of Artemia . In general, decapsulated cysts contain 30 to 40% more energy than freshly hatched nauplii; for Chaplin Lake and Buenos Aires Artemia this difference amounts to 57%. Ash contents increase as decapsulated cysts hatch into instar I and molt into instar II-III nauplii. Over a 24h larval developmental period individual dry weights and energy content of the nauplii decrease with 16-34% and 22-37% respectively.A small but significant correlation exists between the survival rate of starved nauplii and either the energy content of instar I and instar II-III...

Improvements in the decapsulation of Artemia cysts

Palavras-chave: Cysts; Energy budget; Larval stages; Artemia.

Ano: 1983

URL: http://www.vliz.be/imisdocs/publications/261926.pdf

Bruggeman, E.; Baeza-Mesa, M.; Bossuyt, E.; Sorgeloos, P..

As described in our previous paper (Sorgeloos et al. , 1977) hypochlorite can be used as reactive agent to dissolve the lipoproteic chorion of Artemia cysts. Two commercial products are available worldwide, i.e. bleaching powder, chloride of lime Ca(OCL)2 and bleaching water NaOCl solutions. In Western Europe the latter product is the cheapest, whereas in the USA and Southeast Asia bleaching powder should be considered. Because the decapsulation process is a much more critical operation with bleaching powder, especially with regard to the viability of the embryos (Bruggeman et al., in preparation; Manzi, personal communication), we studied the use of technical NaOCl solutions in detail.

International study on Artemia: 55. Cyst membrane protein composition as a discriminant character in the genus Artemia

Palavras-chave: Cysts; Artemia.

Ano: 1979

URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3623

Abatzopoulos, T.J.; Triantaphyllidis, G.; Beardmore, J.A.; Sorgeloos, P..

Isolated embryonic membranes (i.e. the outer cuticular membrane, the fibrous layer, the inner cuticular membrane and the hatching membrane) and homogenates of incubated, decapsulated cysts of 16 populations from five Artemia species (Crustacea, Anostraca) were examined by sodium dodecyl-sulphate polyacrylamide gel electrophoresis. Characteristic differences in major polypeptides between 45 and 205 kD were seen. These differences might be used as markers for identification of different Artemia species. The validity of this approach in characterizing Artemia populations is discussed.

Monitoring Biolog patterns and r/K-strategists in the intensive culture of Artemia juveniles

Palavras-chave: Artemia.

Ano: 1997

URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2920

Verschuere, L.; Dhont, J.; Sorgeloos, P.; Verstraete, W..

Artemia juveniles were cultured under intensive conditions in three series of six tanks at different times. Both plate counts and Biolog GN microtitre plates were used to monitor the microbial community. Repetitions of the Artemia cultures in time revealed significant differences in Biolog patterns and bacterial counts, showing that normal culture practices, including chlorination of the sea water, does not allow control of the associated microbial community. However, the similarity among the Biolog fingerprints of all 18 tanks as determined by the Pearson correlation coefficient was always high. Both observations together indicate that the microbial community which colonizes the culture tanks seems to be determined by...

Roles and potentials of Artemia in coastal saltworks

Palavras-chave: Artemia.

Ano: 1997

URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2985

Sorgeloos, P.; Tackaert, W..

The recent developments in aquaculture production of fish and shrimp have resulted in increased demands for Artemia cysts and biomass as valuable sources of life food. Solar salt works are suitable biotopes for the integrated exploitation of salt, Artemia and eventually fish or shrimp. Artemia may be present as a natural resource in local saltworks; however in some situations characteristics of the endemic strain might justify the introduction of another Artemia species to increase productivity.

Energetic aspects of the metabolism of hydrated Artemia cysts

Palavras-chave: Artemia.

Ano: 1991

URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2861

Benijts, F.; Vandeputte, G.; Sorgeloos, P..