PLUS, Martin, CHAPELLE, Annie, LAZURE, Pascal, AUBY, Isabelle, LEVAVASSEUR, G, VERLAQUE, M, ...
A three-dimensional model coupling physical and biological processes for the whole Than lagoon (Mediterranean coast of France) was developed in order to assess the relationships between macrophytes...
Seagrass (Zostera marina L.) bed recolonisation after anoxia-induced full mortality (2003)
PLUS, Martin, DESLOUS-PAOLI, Jean-Marc, DAGAULT, Francoise
Recolonisation of Zostera marina, following complete destruction caused by an anoxic crisis, was studied in the Than lagoon (French Mediterranean Sea) from February 1998 to September 1999. The...
PLUS, Martin, CHAPELLE, Annie, MENESGUEN, Alain, DESLOUS-PAOLI, Jean-Marc, AUBY, Isabelle
A numerical deterministic model for a seagrass ecosystem (Zostera noltii meadows) has been developed for the Thau lagoon. It involves both above- and belowground seagrass biomasses, nitrogen quotas...
VERLAQUE, Marc, BELSHER, Thomas, DESLOUS-PAOLI, Jean-Marc
A detailed study of vegetative and reproductive phases of several populations of a common species of Ulva from Thau Lagoon (France, Mediterranean Sea) showed that the material is in good agreement...
SOUCHU, Philippe, VAQUER A, André, COLLOS, Yves, LANDREIN, Sonia, DESLOUS-PAOLI, Jean-Marc, BIBENT, Bertrand
Thau lagoon is a Mediterranean shellfish ecosystem with large biomasses of oysters growing in waters with high residence time due to low tidal ranges, The influence of filter feeders (oysters and...
PLUS, Martin, DESLOUS-PAOLI, Jean-Marc, AUBY, Isabelle, DAGAULT, Francoise
The primary production and the respiration of Zostera noltii beds in the Thau lagoon were studied by means of the benthic bell jar technique, Concurrently, environmental data (temperature, light and...
CHAPELLE, Annie, MENESGUEN, Alain, DESLOUS-PAOLI, Jean-Marc, SOUCHU, Philippe, MAZOUNI, Nabila, VAQUER, André, ...
An ecosystem model based on nitrogen cycling and oxygen has been developed for the Thau lagoon. It takes into account the specific features of this Mediterranean lagoon, a semi-confined system with...
PLANTE CUNY, Marie-Reine, PLANTE, Raphaël, MAZOUNI, Nabila, FONTAINE, Marie-France, SOUCHU, Philippe, DESLOUS-PAOLI, Jean-Marc, ...
Measurements of oxygen fluxes at the water-sediment interface (transparent and opaque enclosures) were made on bare sediments inhabited by microphytes on the one hand, and on sediments diversely...
Impact of oyster culture on nutrients and oxygen fluxes in a coastal lagoon. (1998)
MAZOUNI, Nabila, DESLOUS-PAOLI, Jean-Marc, LANDREIN, Sonia
The impact of suspended oyster culture (Crassostrea gigas, Thunberg) on oxygen and nutrient fluxes has been studied in situ, in a coastal lagoon (Thau, France), during a seasonal cycle. On the first...
MAZOUNI, Nabila, GAERTNER, J, DESLOUS-PAOLI, Jean-Marc
This study was based on in situ experiments conducted in a shellfish lagoon (Thau, France) to determine the interactions between suspended oyster Crassostrea gigas Thunberg cultures and their...
RAILLARD, Olivier, DESLOUS-PAOLI, Jean-Marc, HERAL, Maurice, RAZET, Daniel
A model simulating growth and feeding is presented for Crassostrea gigas and incorporates such physiological processes as filtration rate, pseudo-faeces production and ingestion, oxygen consumption...
BAYNE, B., IGLESIAS, J., HAWKINS, A., NAVARRO, E, HERAL, Maurice, DESLOUS-PAOLI, Jean-Marc
Mussels were fed four concentrations of seston (between 099 and 103mgtotalseston P), comprising three levels of organic content (719, 636 and 408%), made up from natural silt and two...
Energy model of the oysters growth (Crassostrea gigas) in Marennes Oleron bay (France) (1991)
BACHER, Cedric, HERAL, Maurice, DESLOUS-PAOLI, Jean-Marc, RAZET, Daniel
The growth of oysters (Crassostrea gigas) is modeled in order to study the trophic capacity of the Bay of Marennes Oléron. Total seston and amount of protids, lipids, and carbohydrates converted to...
Oyster culture in European countries (1991)
HERAL, Maurice, DESLOUS-PAOLI, Jean-Marc
Three species of oysters have been or are cultivated in Europe: Crassostrea angulata, C. gigas, and Ostrea edulis. If we follow the taxonomic critera of Grassé, the European oysters belong to the...
The biotic capability of oyster-farming basins (1989)
HERAL, Maurice, BACHER, Cedric, DESLOUS-PAOLI, Jean-Marc
Maurice Héral has been studying, since 1976 at the IFREMER Station of La Tremblade (France), the trophic networks of shellfish-farming ecosystems and, especially, the variability of available food,...
HERAL, Maurice, ALZIEU, Claude, DESLOUS-PAOLI, Jean-Marc
Organotin salts, used as antifouling substances have a deleterious effect on the environment particularly on molluscs and especially on the Japanese oyster Crassostrea gigas. A synthesis of the...
Approach of the estimation of the carrying capacity for oyster culture (1988)
HERAL, Maurice, DESLOUS-PAOLI, Jean-Marc, PROU, Jean
After a short bibliographical study of the different approaches for determination of the trophic capacity of a bay for molluscs culture, the authors, with a global mode, show the relations between...
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...
Total lipid content and lipid energetic values of bivalve molluscs (1988)
DESLOUS-PAOLI, Jean-Marc, HERAL, Maurice, JOUSSET, M., BOROMTHANARAT, Somsak, GOULLETQUER, Philippe, GOULLETQUER, Philippe, ...
The total lipid contents of four bivalve molluscs (Crassostra gigas, Mytilus edulis, Ruditapes philippinarum, Cerastoderma edule) were estimated by two methods, one colorimetric the other...
FEUILLET-GIRARD, Michelle, HERAL, Maurice, SORNIN, Jean-Marc, DESLOUS-PAOLI, Jean-Marc, ROBERT, Jean-Michel, MORNET, Francoise, ...
The respective influences of the sediment and of oyster (Crassostrea gigas) farming on the accumulation and the recycling of different forms of organic and inorganic nitrogen are described. Fluxes of...
DESLOUS-PAOLI, Jean-Marc, SORNIN, Jean-Marc, HERAL, Maurice
The biodeposition was quantified on the field with sediment traps. All over the year, the biodeposition was the lowest for Crepidula fornicata. Mytilus edulis rejected more biodeposits during winter,...
BOROMTHARANAT, S, DESLOUS-PAOLI, Jean-Marc, HERAL, Maurice
Observations on the gonads of 50 mm mussels, made during 1983 and 1984, showed that the onsert of gametogenesis occured during September and that the gonads reached maturity in December. Spawning...
HERAL, Maurice, DESLOUS-PAOLI, Jean-Marc, PROU, Jean, RAZET, Daniel
The study of the trophic relations needs to collect data which can best represent the variability of the populations of molluscan and the parameters of the water. For the water, the main parameters...
Seasonal evolution of the filtration of intertidal molluscs in natural conditions (1987)
DESLOUS-PAOLI, Jean-Marc, HERAL, Maurice, GOULLETQUER, Philippe, BOROMTHANARAT, Wilaiwan, RAZET, Daniel, GARNIER, Jacqueline, ...
The study of cultivated ecosystems, once the trophic capacity ha
HERAL, Maurice, DESLOUS-PAOLI, Jean-Marc, PROU, Jean
The evolution of the production of cupped oysters is estimated on a century (1885-1985) with three different sources of data. The total biomass in culture is calculated from productions by knowing...
HERAL, Maurice, DESLOUS-PAOLI, Jean-Marc, PROU, Jean
Recruitment, marketed yield and cultivated biomasses of oysters Crassostrea angulata and Crassostrea gigas are compared to climatic indices for the period 1885-1984. Temperature plays a role up on...
Improving assessment of shellfish stock cultivated in Charente-Maritime (1986)
BACHER, Cedric, DESLOUS-PAOLI, Jean-Marc, HERAL, Maurice, PROU, Jean
The expansion of shellfish culture businesses (oysters, mussels, clams...) gives way to a competition for the use of limited food resources, especially in the Marennes-Oléron basin where water...
BACHER, Cedric, BAUD, Jean-Pierre, BODOY, Alain, DESLOUS-PAOLI, Jean-Marc, DRENO, Jean-Paul, HERAL, Maurice, ...
An assessment of the reared stocks of the Pacific oyster (Crassostrea gigas ) has been recently conducted on the major French areas of molluscs culture. The methodology proposed included both...
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...
HERAL, Maurice, PROU, Jean, DESLOUS-PAOLI, Jean-Marc
The authors are comparing the recruitment, the commercialised production, the cultivated biomasses of oysters Crassostrea gigas and Crassostrea angulata with the statistics of the meteorology...
HERAL, Maurice, DESLOUS-PAOLI, Jean-Marc
The analysis of the official statistics of commercialised production of oysters (.Crassostrea angutata and Crassostrea gigas ) is achieved from 1866 to 1984 in term of their numbers and weights for...
Assessment of reared oyster's stocks by remote sensing: results and prospects (1985)
DESLOUS-PAOLI, Jean-Marc, POPULUS, Jacques, L'HERROUX, Michel, BRUSSIEUX, Marc
This papers compares modern techniques of remote sensing (numerical) to more classical ones (photo-interpretation) for the assessment of the intertidal zone land use. The study is limited to...
Assessment of energetic requirements of reared molluscs and of their main competitors (1985)
In the context of aquaculture in open sea the amount: and qua11ty of food is variable according to the season and the physical flux in the ecosystem (carrying capacity ecosystems ). Thus to predict...
DESLOUS-PAOLI, Jean-Marc, HERAL, Maurice
A paraIleI study of the available energy in the water and of the energy balance of one year old Crassostrea gigas has been made in Marennes-Oleron. Also, from the 32.95 \06 Kcal/m2 that goes through...
HERAL, Maurice, DESLOUS-PAOLI, Jean-Marc, RAZET, Daniel, PROU, Jean
The flesh production of oysters is mainly related to concentrations of dissolved carbon and free amino acids. The younger oysters are dependent on concentrations of pheopigments while the production...
HERAL, Maurice, RAZET, Daniel, DESLOUS-PAOLI, Jean-Marc, MANAUD, Francois, TRUQUET, Isabelle, GARNIER, Jacqueline
After determining the seasonal features of the hydrobiology of the Marennes-Oléron's estuarine complex in 1976 and 1977 (Héral et al, 1983), based on seasonal campaigns conducted in 15 stations...
An energy budget for a natural population of Crepidula fornicata in Marennes-Oleron. (1983)
DESLOUS-PAOLI, Jean-Marc, HERAL, Maurice, MASSE, H
An energy budget has been evaluated for a natural population of Crepidula fornicata living at low water of spring tides in the oyster farming basin of Marennes-Oleron. This budget of production was...
Relevance of pre-farming the Crassostrea gigas oyster in fattening ponds (1983)
ZANETTE, Yvan, DESLOUS-PAOLI, Jean-Marc
Since the disappearance of Crassostrea angulata LMK during the epizootics of 1970-72, Crassostrea gigas Thunberg has been cultivated in the Marennes-Oléron basin. The latter, which could reach its...
HERAL, Maurice, DESLOUS-PAOLI, Jean-Marc
The energetic values measured by the direct method and estimated by biochemical analysis of the annual cycle of ash-free dry weight of two Crassostrea gigas populations, show that the analytic...
SORNIN, Jean-Marc, FEUILLET, Michelle, HERAL, Maurice, DESLOUS-PAOLI, Jean-Marc
The accumulation of biodeposits brings about geochemical modifications of the underlying sediment, that are noticeable. The increase can reach 83% of the amount of organic carbon. By catching the...
Seasonal features of the hydrobiology of the estuarine Marennes-Oleron Bay (France). (1982)
HERAL, Maurice, RAZET, Daniel, DESLOUS-PAOLI, Jean-Marc, BERTHOME, Jean-Paul, GARNIER, J.
Four seasonal compaigns providing a sampling of 15 stations each followed during half a tide cycle, i.e. 120 water samples permit the definition of the main hydrobiological features of...
In 1979-1980, the main growth o oysters Crassostrea gigas, in the basin of Marennes-Oleron occured in June and July. The available amount of food and the energetic requirements for the reproduction...
BERTHOME, Jean-Paul, DESLOUS-PAOLI, Jean-Marc, HERAL, Maurice, RAZET, Daniel, GARNIER, Jacqueline
The want of C. gigas spat-catching in the Marennes-oleron basin in 1981 can be due to various different reasons which are analysed here. Physico -chemical and trophic factors that can induce...
DESLOUS-PAOLI, Jean-Marc, MASSE, Henri
Hundred and ten samplings were made in the bay of Marennes Oleron, during the summer 1981. They allow to localize the hight loads of Crepidula fornicata in the middle of the bay (along the mud-bank...
HERAL, Maurice, DESLOUS-PAOLI, Jean-Marc, GARNIER, Jacqueline, PRIOUL, Daniel, HEURTEBISE, Serge, RAZET, Daniel
Different types of pregrowth of the Japanese palourde are compared on the some site. The method by upwelling which is the more common used, to have good growth, requires a compromise between the...
DESLOUS-PAOLI, Jean-Marc, HERAL, Maurice, BERTHOME, Jean-Paul, RAZET, Daniel, GARNIER, Jacqueline
In summer 1979, the natural reproduction of oysters Crassostrea gigas Thunberg, in Marennes-Oleron basin, produced a large number of juveniles which was not the case in summer 1981. If one compares...
HERAL, Maurice, ZANETTE, Yvan, DESLOUS-PAOLI, Jean-Marc, ROBERT, Jean-Michel, RAZET, Daniel
En 1979 et e, 1980, les caractéristiques de la matière organique particulaire sont définies bimensuellement par des analyses du seston. Il est très élevé dans le bassin, et très faible dans...
DESLOUS-PAOLI, Jean-Marc, ZANETTE, Yvan, HERAL, Maurice, MASSÉ, 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...
Toxicity of Metallic Dissolved Elements for Larvae of Marine Organisms: Bibliographic Data. (1981)
A bibliographic review has been made on the toxicity of ten metals for some marine larvae of commercial interest. We have classified, according to toxicity, organic salts of tin, mercury, silver,...
Crassostrea gigas Thunberg's infestation by Mytilicola orientalis. Mori in 1979 in the basin of" Marennes-Oléron presents two maxima, one during spring, the other during autumn. The parasites have...
Problèmes posés par l'analyse des relations trophiques huîtres-milieu (1981)
DESLOUS-PAOLI, Jean-Marc, HERAL, Maurice, ZANETTE, Yohann
A relation between the evolution of biochemical components of molluscs and the available amount of food is difficult to establish. In addition to energy relations we tried to use a factorial...
HERAL, Maurice, BERTHOME, Jean-Paul, POLANCO TORRES, E., ALZIEU, Claude, DESLOUS-PAOLI, Jean-Marc, RAZET, Daniel, ...
The appearance and changes of the oyster shell's gelatinous bags have been monitored since 1979. The increase in thickness that causes the growth into a "ball" can be explained by an overproduction...
Caloric values of Crassostrea gigas Thunberg oysters: Direct and biochemical estimation (1980)
DESLOUS-PAOLI, Jean-Marc, HERAL, Maurice
Caloric values of the ash-free dried sofkt parts of Crassostrea gigas have been characterized, according to season using a microcalorimeter and biochemical composition. This study shows the...
Comparaison de trois index de qualité de l'huître creuse Crassostrea gigas (1979)
BERTHOME, Jean-Paul, DESLOUS-PAOLI, Jean-Marc, FERNANDEZ-CASTRO, N.
Three indexes of quality of Japanese oyster Crassostrea gigas were studied in 3 lots of oysters bred in the r.1arennes-oléron basin from february to july 1979: condition index of MEDCOF &-. NEEDLER,...