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A physiological and biochemical approach to selecting the ideal diet for Ostrea edulis (L.) broodstock conditioning (part A) ArchiMer
Gonzalez-araya, Ricardo; Queau, Isabelle; Quere, Claudie; Moal, Jeanne; Robert, Rene.
To select the best microalgae for Ostrea edulis conditioning, four single species diets were fed to batches of broodstock, which were then compared using physiological and biochemical approaches. Ingestion and absorption were first studied, showing that Chaetoceros gracilis and Skeletonema marinoï were efficiently ingested (4.9–5.3 mg g−1 h−1) and absorbed (1.9–2.5 mg g−1 h−1) while Tetraselmis suecica led to the lowest physiological responses (0.36 and 0.12 mg g−1 h−1 respectively). When O. edulis were fed any microalgae except T-ISO with only 79 mg g−1, gonads accumulated carbohydrates from 116 to 141 mg g−1 and the extent of accumulation depended on the species supplied in the order T. suecica<C. gracilis<S. marinoï. When oysters were fed either...
Tipo: Text Palavras-chave: Ostrea edulis; Conditioning; Algal diets; Ingestion; Absorption; Biochemical composition.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00033/14449/11748.pdf
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Amelioration de la forme et de la qualite de l'huitre Crassostrea gigas Thunberg dans les claires de Marennes-Oleron. ArchiMer
Deslous-paoli, Jean-marc; Zanette, Yvan; Heral, Maurice; Masse, Henri; Garnier, Jacqueline.
The breeding of Pacific oysters Crassostra gigas, in non tidal ponds, before commercialization, brings about an improvement of the shell and of the quantity and quality of the tissues. In fact, the Berthome's indice (1978) moves from 1.36 in June to 0.68 December, and the density of the shell increases in the same time from 1.79 to 1.98. On the other hand, the percentage of tissues in the oyster is 12.4% at the end of gametogenesis and more than 9% at the end of breeding. The dry tissues are composed of 10.3 of ash, 40.3% of proteins, 12.6% of lipids and 9% of carbohydrate. 95% of the carbohydrate are glycogen. The resulting energetic values are measured to 5.10 cal-mg super(-1) of dry tissues ash free.
Tipo: Text Palavras-chave: Crassostrea gigas; Tissues; Biochemical composition; Shells; Growth; Oyster culture.
Ano: 1981 URL: http://archimer.ifremer.fr/doc/1981/publication-1892.pdf
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Amélioration des productions phytoplanctoniques en écloserie de mollusques : caractérisation des microalgues fourrage ArchiMer
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
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Aspects biométriques et biochimiques de la croissance de l'huître Crassostrea virginica en élevage suspendu à Solomons (Baie de Chesapeake) ArchiMer
Goulletquer, Philippe; Prou, Jean; Heral, Maurice.
Growth and proximate biochemical composition of the American oyster Crassostrea virginica were studied in the Patuxent river (Maryland), located in the middle reach of the Chesapeake bay (U.S.A.). The effects of stocking densities and environmental variables (depth, temperature) were examined in 1989-1990 on oyster population by using off-bottom culture. No significant density effect was observed on the shell growth, which is described by using a seasonally oscillating function. In contrast, the meat growth and the proximate biochemical composition were bath affected by the stacking density and the depth location. The variability of the resulting effects was observed based on a seasonal trend. Different hypothesis mainly related tO environmental conditions...
Tipo: Text Palavras-chave: USA; Chesapeake Bay; Oysters; Growth; Biochemical composition; Crassostrea virginica; Croissance; USA; Chesapeake Bay; Huîtres; Biochimie; Biométrie; Crassotrea virginica.
Ano: 1994 URL: http://archimer.ifremer.fr/doc/1994/publication-3076.pdf
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Biochemical composition and energy value of Crassostrea gigas (Thunberg) cultured in the bay of Marennes-Oleron ArchiMer
Deslous-paoli, Jean-marc; Heral, Maurice.
In the bay of Marennes-Oleron the dry flesh of Crassostrea gigas ranged from 29 to 52% proteins, 10 to 23% ash, 6 to 20% lipids and 0 to 4% carbohydrates of which 48.3 ± 21.6% were glycogen. The energy value ranged from 18.84 to 23.47 joule. Mg(-1) ash free dry weight (mean 20.27 J. mg(-1). Reproductive effort varied from 17.8 to 55.9% dry weight for males, and 43.1 to 61.9% for females during the first and third year of reproduction respectively. A high energy value for female gametes (23.47 to 26.24 J. mg(-1) dry tissue) was mainly due to a higher level of lipids (17.3 to 23% of dry tissue) in female gametes as compared to that in male gametes (5.9 to 12.3% of dry tissue). During the period of mass-loss which began in October and finished in March, the...
Tipo: Text Palavras-chave: Crassostrea gigas; Winter loss of flesh; Reproductive effort; Energy value; Biochemical composition; Crassostrea gigas; Amaigrissement hivernal; Effort de reproduction; Valeur énergétique; Composition biochimique.
Ano: 1988 URL: http://archimer.ifremer.fr/doc/1988/publication-2872.pdf
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Biochemical composition of some Egyptian seaweeds with potent nutritive and antioxidant properties Ciênc. Tecnol. Aliment.
ISMAIL,Gehan Ahmed.
Abstract The present study investigated the biochemical composition of three seaweeds; Ulva fasciata (Chlorophyta), Sargassum linifolium (Phaeophyta) and Corallina officinalis (Rhodophyta). Total chlorophyll content was maximum in U. fasciata (34.06mg/g dry wt.) while carotenoid content was the highest in C. officinalis (3.8 mg/g dry wt.). The uppermost level of carbohydrates was (27.98% of dry wt.) in C. officinalis and proteins were maximum (14.89%) in S. linifolium. Aspartic, glutamic, alanine, leucine and proline were common amino acids in the three tested species. The polyunsaturated ω6 and ω3 essential fatty acids were recorded in S. linifolium (3.28%) and in U. fasciata (3.18%). The results showed that U. fasciata contained the highest amounts of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Seaweeds; Biochemical composition; Elemental analysis; Antioxidant activity.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612017000200294
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Biochemical substrates expenses and respiration at short-term starvation of marine planktonic animals ArchiMer
Pavlova, Z; Morozova, A; Gaudy, R; Shchepkin, V.
One of the most important indices at estimation of productivity characteristics of hydrobionts is oxygen consumed in the process of respiration. Usually respiration (standard metabolism) is measured in small-volume respirometres (30-50 ml) where animals' activity is considerably restricted. It may underestimate respiration in comparison to natural one. Therefore respirometres of larger volume were used. Simultaneously under same conditions we tried to estimate energy requirements by expense of main biochemical components of organic matter (lipids, protein, glycogen). Results were used to calculate energy budget and to compare energy expenditures, measured according to consumed oxygen and tissue substrates expense.
Tipo: Text Palavras-chave: Euchirella curticauda; Pleuromamma abdominalis; Scolecithrix danae; Ostracoda; Copepoda; Starvation; Oxygen consumption; Biochemical composition; Zooplankton; Energy budget; Respiration; Biological production.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/acte-1520.pdf
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Changes in proximate composition and lipid quality of atherina atherina sp. during sun drying process OceanDocs
Selmi, S.; Bouriga, N.; Faure, E.; Trabelsi, M..
Dans le présent travail, l’effet du séchage solaire sur la composition biochimique et la qualité des lipides des athérines a été étudié. La teneur en lipides, protéines et en cendres dans l’athérine a augmenté significativement (p <0.05) après le séchage. Cependant, celle de l’humidité a montré une forte diminution pour atteindre 22.37% dans le produit final. D’autre part, l’étude des indicateurs d’altération des lipides (Oxydation et Hydrolyse) nous a montré que la qualité des lipides des athérines est affectée par ce type de traitement. En effet, les taux des hydropéroxydes et des acides gras libres ont augmenté significativement (p < 0.05) après le séchage pour atteindre respectivement 2.02 meq active O2/kg huile et 3.67%. La formation des...
Tipo: Journal Contribution Palavras-chave: Biochemical composition; Dried products; Drying; Hydrolysis; Methodology; Oxidation; Processing fishery products; Quality assurance; Atherina; Http://aims.fao.org/aos/agrovoc/c_688.
Ano: 2008 URL: http://hdl.handle.net/1834/4152
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Chemical composition of some marine algae from the mediterranean sea of alexandria, egypt OceanDocs
El-Sarraf, W.M.; El-Shaarawy, G..
No abstract is included
Tipo: Journal Contribution Palavras-chave: Accumulation; Bioaccumulation; Biochemical composition; Algae; Bioaccumulation.
Ano: 1994 URL: http://hdl.handle.net/1834/1243
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COMPARATIVE GROWTH AND BIOCHEMICAL COMPOSITION OF FOUR STRAINS OF Nostoc AND Anabaena (CYANOBACTERIA, NOSTOCALES) IN RELATION TO SODIUM NITRATE Acta biol.Colomb.
ROSALES LOAIZA,Néstor; VERA,Patricia; AIELLO-MAZZARRI,Cateryna; MORALES,Ever.
Nitrogen concentration is an essential parameter in cyanobacterial cultures to produce enriched biomass with biotechnological purposes. Growth and biochemical composition of Nostoc LAUN0015, Nostoc UAM206, Anabaena sp.1 and Anabaena sp.2 were compared at 0, 4.25, 8.5 and 17 mM NaNO3. Cultures under laboratory conditions were maintained for 30 days at a volume of 500 mL. Anabaena sp.1 yielded the highest value of dry mass of 0.26 ± 2.49 mg mL-1 at 8.5 mM NaNO3. For chlorophyll, phycocyanin and phycoerythrin, maximum values were achieved at 17 mM NaNO3 with 18.09 ± 1.74, 102.90 ± 6.73 and 53.47 ± 2.40 μg mL-1, respectively. Nostoc LAUN0015 produced its maximum value of protein 644.86 ± 19.77 μg mL-1, and 890 mg mL-1 of carbohydrates in the absence of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anabaena; Biochemical composition; Biomass; Culture; Nitrate; Nostoc.
Ano: 2016 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2016000200003
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Composition en acides gras des différents organes du pétoncle "Flexopecten glaber" (pectinidae) dans la lagune de Bizerte (Tunisie) OceanDocs
Telahigue, K.; Rabeh, I.; Chetoui, I.; Romdhane, M.S..
Dans le présent travail, les profils lipidiques des acides gras du pétoncle Flexopecten glaber récolté dans la lagune de Bizerte pendant le mois de mai 2007 ont été déterminés. Les pourcentages des différents groupes d’acides gras dans les organes (manteau, muscle adducteur, gonade, branchies et glande digestive) ont été calculés. Les résultats de la chromatographie en phase gazeuse ont révélé des pourcentages élevés en C20:5n-3 et en C14:0 et le rapport C22:6n-3/C20:5n-3 (DHA/EPA) est inférieur à 1, au niveau de la glande digestive du bivalve. Ceux-ci nous ont permis d’en déduire que le régime alimentaire de ce bivalve est essentiellement basé sur les diatomées. Les pourcentages les plus élevés des acides gras polyinsaturés de la série n-3 (EPA et DHA...
Tipo: Journal Contribution Palavras-chave: Animal nutrition; Animal organs; Biochemical composition; Diets; Fatty acids; Lagoon fisheries.
Ano: 2009 URL: http://hdl.handle.net/1834/4496
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Composition in essential and non-essential elements of early stages of cephalopods and dietary effects on the elemental profiles of Octopus vulgaris paralarvae ArchiMer
Villanueva, Roger; Bustamante, Paco.
During the present study, we aimed at providing a first look at the elemental composition of the early stages of cephalopods as an approach to their elemental requirements in culture. Essential and non-essential elemental profiles of the European cuttlefish Sepia officinalis, the European squid Loligo vulgaris and the common octopus Octopus vulgaris laboratory hatchlings and wild juveniles were analysed. In addition, for O. vulgaris we determined elemental profiles of mature ovary, eggs in different stages of development and followed possible effects of four dietary treatments during paralarval rearing, also analyzing elemental content of the live preys Artemia nauplii and Maja brachydactyla hatchling zoeae. Content was determined for essential (As, Ca,...
Tipo: Text Palavras-chave: Octopus; Loligo; Sepia; Larvae; Eggs; Biochemical composition.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-2183.pdf
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Condiciones hidroquímicas en estaciones 10 millas frente a la costa ecuatoriana durante el 2008 OceanDocs
Macías, Patricia; León, Jeannet.
En el presente trabajo se analizaron las distribuciones tanto de oxígeno disuelto como de los principales elementos nutritivos, durante el periodo 2008, registrados en tres estaciones localizadas a 10 millas fuera de la costa ecuatoriana. Los resultados indican que los mayores valores de oxígeno disuelto a nivel superficial fueron detectaron en el primer trimestre, mientras que la concentración de nutrientes se observaron afectadas debido a los procesos de mezcla que permitió enriquecer el área de estudio.
Tipo: Journal Contribution Palavras-chave: Dissolved oxygen; Nutrients (mineral); Biochemical composition.
Ano: 2009 URL: http://hdl.handle.net/1834/4786
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Correlation between fertility and levels of protein, sugar and free amino acids in seminal plasma of Nelore bulls Arq. Bras. Med. Vet. Zootec.
Assumpção,T.I.; Torres Júnior,R.A.A.; Sousa,M.V.; Ricart,C.A.O..
Correlations between fertility and the concentrations of proteins, reducing sugars and 17 types of free amino acids in the seminal plasma of Nelore bulls were estimated. The samples were collected from 19 bulls that had high quality semen, according to physical and morphological analyses. The bulls had their fertility scores estimated based on the pregnancy of the females mated to them during three consecutive breeding seasons, either by artificial insemination or by natural breeding. A large variability in the concentrations of the molecules was observed among the samples and a significant correlation coefficient (r= 0.90) between levels of proteins and reducing sugars was estimated. None of the components showed a significant correlation with fertility.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bull; Nelore; Seminal plasma; Fertility; Biochemical composition.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000100008
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Crepidula fornicata L. (Gastéropode, Calyptraeidae) dans le bassin de Marennes-Oléron : composition et valeur énergétique des individus et des pontes ArchiMer
Deslous-paoli, Jean-marc; Heral, Maurice.
In the bay of Marennes-Oléron, the shell represents 60% and the dry flesh from 3 to 8.5% of the total weight of Crepidula fornicata. Seasonal changes in the biochemical composition of the dry flesh show two periods of spawning for the females and a single period of reproduction for the males, and that the main component of the energy reserve is glycogen. The mean energy value of Crepidula fornicata varies between 15.1 and 19.3 joules/mg of ash-free dry weight of flesh (average 17.7) and this value is higher in the males than the females, during aIl the periods of reproduction. The females lay, as early as their third year, about 56 egg capsules at each spawning, containing a total of Il 725 eggs with an energy value of 22.4 joules/mg ash free dry weight.
Tipo: Text Palavras-chave: Crepidula Jornicata; Composition biochimique; Valeur énergétique; Marennes-Oléron; Crepidula Jornicata; Biochemical composition; Energy value; Marennes-Oléron.
Ano: 1986 URL: http://archimer.ifremer.fr/doc/1986/publication-2964.pdf
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Croissance et qualité de l'huître ceuse Crassostrea gigas dans le bassin de Thau (Hérault) : Résultats d'une étude réalisée en 1990-1991 ArchiMer
Pichot, Paul; Landrein, Sonia; Juge, Claude.
During years 1990-1991, a study was carried ouI in order to precise the relationship between sorne physiological features and the biochemical characteristics of dry flesh and hemolymf of oyster Crassostrea gigas, cultivated in the mediterranean lagoon of Thau. Growth rates and biochemical analysis for proteins, lipids and carbohydrates were estimated. The results of this study are given. They include many other data from a study on trophic relationships developed between 1985-1989.
Tipo: Text Palavras-chave: Méditerranée; Etang de Thau; Crassostrea gigas; Croissance; Composition biochimique; Protides; Lipides; Glucides; Mediterranean; Lagoon of Thau; Crassostrea gigas; Growth; Biochemical composition; Proteins; Lipids; Carbohydrates.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00419/53031/53966.pdf
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Effect of the culture system and culture technique on biochemical characteristics of Pavlova lutheri and its nutritional value for Crassostrea gigas larvae ArchiMer
Ponis, Emanuele; Parisi, G; Le Coz, Jean-rene; Robert, Rene; Zittelli, G; Tredici, R.
Pavlova lutheri was cultivated in carboys using batch technique and in a flat alveolar photobioreactor (FAP), using initially batch and then semi-continuous techniques. Growth and productivity of the cultures were compared and their nutritional quality was assessed by analysing their biochemical composition (gross composition, fatty acids and sterols) and by evaluating their food value for Pacific oyster (Crassostrea gigas) larvae as bispecific diet in association with Chaetoceros calcitrans forma pumilum. The highest productivity was achieved with the FAP operating in semi-continuous mode. Gross composition of P. lutheri was similar in all cultures, while cellular organic matter content of the microalga grown in FAP in semi-continuous mode was lower....
Tipo: Text Palavras-chave: Semi continuous culture; Pavlova lutheri; Flat alveolar photobioreactors; Crassostrea gigas; Carboys; Biochemical composition; Batch culture.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-6117.pdf
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Effect of the density of the culture and the depth on the seasonal variation of the biochemical composition of Crassostrea virginica in patuxent river (Chesapeake Bay) ArchiMer
Prou, Jean; Heral, Maurice; Goulletquer, Philippe; Forget, Maïté; Bougrier, Serge; Razet, Daniel.
The project of cultivation of oyster has been designed to evaluate the growth rate, the mortality, the reproductive effort, production and biochemical composition of the oyster function of the density and the depth. This plan was intended: - to build model of growth rate, - to demonstrate the action of the different parameters on growth rate (temperature, food effect...), - to evaluate the density effect to see if the available food could be a limiting factor, - to estimate the effect of the depth joined to the impact of the high turbidity near the bot tom, - to detect the mortality related to the prevalence of diseases. The project began in July 1989 by dredging 20 000 small oysters at the mouth of the Patuxent River near Cove Point. Three experimental...
Tipo: Text Palavras-chave: Physiology; Seasonal variation; Biochemical composition; Density; Crassostrea virginica; Cheseapeake Bay.
Ano: 1991 URL: http://archimer.ifremer.fr/doc/00200/31104/29503.pdf
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Effets de la salinité et de la température du milieu sur le degré de saturation des acides gras et sur les différentes catégories lipidiques des alevins de Mugil cephalus. OceanDocs
El Cafsi., M.; Kheriji., S.; Masmoudi., W.; Romdhane., M.S..
Le suivi de l’évolution des lipides des alevins de Mugil cephalus en fonction de la salinité et de la température du milieu, montre qu’après acclimatation à 14°C, le rapport acides gras polyinsaturés/acides gras saturés, chez les alevins acclimatés à la basse salinité (0,5‰) augmente de 6,5%. D’autre part, nous avons noté une diminution de 65% de la masse des triacylglycérols et une augmentation de 37% de celle des lipides polaires. Par ailleurs, nous avons relevé que l’abaissement de la température du milieu de 26 à 14°C, entraîne une augmentation plus importante du rapport acides gras polyinsaturés/acides gras saturés à 0,5‰ qu’à 35‰. La diminution de la température du milieu provoque une augmentation respective de 365 et de 53%, de la masse des...
Tipo: Journal Contribution Palavras-chave: Biochemical composition; Salinity; Lipids; Fry; Fatty acids; Temperature; Accumulation; Mugil cephalus; Http://aims.fao.org/aos/agrovoc/c_35403.
Ano: 2000 URL: http://hdl.handle.net/1834/4296
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Electron microprobe analysis of suspended matter in the Angola Basin OMA
Bernard, P.; Eisma, D.; Van Grieken, R..
Electron microprobe analysis of suspended-matter samples collected at different water depths at ten stations in the Angola Basin indicated that at each station, from top to bottom, the elementary composition of the suspended matter was very similar and differed from the composition of the suspended matter at the adjacent stations. This indicates that the downward settling of the suspended matter is much faster than the horizontal transport and mixing by the currents. Assuming that the suspended matter settles in the form of flocs, or is scavenged by settling flocs, the suspended matter can indeed reach the bottom in a shorter period than needed for the currents to cover the distance between adjacent stations. Comparison with sediment trap data from the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biochemical composition; Ocean basins; Sediment traps; Sedimentation; Suspended particulate matter.
Ano: 1999 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3977
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