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| Registros recuperados: 149 | |
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| Caill-milly, Nathalie; Duclercq, Benoit; Morandeau, Gilles; De Casamajor, Marie-noelle. |
| Introduction: With the objective of diversifying current fishing and at the request of professionals in Aquitaine, the Regional Commission of Maritime Fishing and Marine Breeding (CRPMEM) of Aquitaine has started a discussion about the possibilities of opening a shellfishery. In the context of this course of action, and because of the absence of information on the presence and size of the resource, the CRPMEM of Aquitaine asked IFREMER's Halieutic Resources Laboratory of Aquitaine (LRHA) for assistance in acquiring information on the subject. At the same time, a prospective analysis study of the exploitation of shellfish off the coast of Aquitaineregulation and business sectionwas performed by the CRPMEM of Aquitaine (Coiffec, 2006). At that same time,... |
| Tipo: Text |
Palavras-chave: France; North east atlantic; Aquitaine coasts; Fleet; Geographical zones; Sampling; Bivalvia; Shellfish fisheries. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/rapport-2217.pdf |
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| Furfari, S; Kelley-reitz, R; Dowgert, M. |
| This article describes the requirements of the Manual of Operations, Part 2 of the National Shellfish Sanitation Program, for conducting verification studies at depuration plants for molluscan shellfish. This article also describes the effect of the Hazard Analysis Critical Control Points (HACCPs) on such studies, and how to plan studies on new or existing plants. Methods are described for analyzing the various facets of the physical plant, such as sea water systems, tank construction, and other pertinent facilities. Of equal importance, methods are described for investigating and analyzing the various critical control points of the operation of the plant. Studies at a soft clam depuration plant are used as a model for this article. The most important... |
| Tipo: Text |
Palavras-chave: Bivalvia; Pollution monitoring; Marine molluscs; Self purification; Shellfish. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-1617.pdf |
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| Howell, T; Jones, S; Nardi, G. |
| A HACCP-based program is developed for the Spinney Creek Oyster Company (SCOC) Shellfish Purification Facility under a pilot program funded and implemented by the New England Fisheries Development Association (NEFDA). The SCOC Facility, which includes a government approved in-house coliform laboratory, is fully licensed for oysters and clams under State of Maine and NSSP regulations. SCOC's business is producing value-added, quality-assured shellfish for premium, health conscious markets. To accomplish this, SCOC uses shellfish harvested from approved waters which is an important distinction from other purification plants which process shellfish originating from restricted waters. It was necessary to create a flow chart of the various steps involved in the... |
| Tipo: Text |
Palavras-chave: Bivalvia; Pollution control; Public health; Methodology; Self purification; Shellfish; Marine molluscs. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-1608.pdf |
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| Bodoy, A; Geiaron, P; Garnier, Jacqueline; Heurtebise, S. |
| Two different biomasses (100 g multiplied by m super(-2) and 1 kg multiplied by m super(-2)) of oysters were put in identical sea-water ponds, thus leading to different trophic conditions, corresponding to rearing techniques. Changes in growth, biochemical composition and sexual maturation were recorded for two age groups. The first one included 9 month-old oysters and the second one 21 month-old oysters, at the beginning of the experiment. For both age groups, significant differences were observed in growth and biochemical composition. Lipids were accumulated faster for the lower biomass. However, the only difference concerning glycogen was observed on the older oysters. They showed a peak at the lowest biomass and a decrease at the larger biomass. Sexual... |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Bivalvia; Sea water; Oyster culture; Glycogen; Age; Chemical composition; Lipids; Biochemistry; Sexual maturity; Rearing; Pond culture; Biomass; Growth; Density. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-916.pdf |
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| Miossec, Laurence; Le Deuff, Rose-marie; Goulletquer, Philippe. |
| The Pacific oyster (Crassostrea gigas, Thunberg, 1793) is one of 20 species in the genus Crassostrea. Although native to the Japan/Korea region, C. gigas is a hardy species that has been introduced to a number of countries worldwide, including the US, Canada, the UK, France, Korea, China, New Zealand, Australia, South Africa, and South America, mainly for aquaculture purposes (Mann et al., 1991; Orensanz et al., 2002). As a result, C. gigas has become the leading species in world shellfish culture, with an estimated production of 4.6 million t in 2006 (FAO, 2008). Because C. gigas does not require additional food to sustain its growth, this species is relatively inexpensive and easy to produce. Its capacity to adapt to various environmental conditions and... |
| Tipo: Text |
Palavras-chave: Transfer; Alien species; Distribution; Introduction; Bivalvia; Crassostrea gigas; Pacific oyster. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/rapport-6945.pdf |
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| Dorange, G; Lepennec, M. |
| The spermatozoon of Pecten maximus is of the primitive type usually associated with species having external fertilization or emitting the sperm in the water. The size of the nucleus is reduced. The middle piece is similar to that reported for several Bivalves. It contains glycogen. But the spermatozoon of P. maximus exhibits its own ultrastructural characteristics: the short acrosome differs in size, shape, position and ultrastructure or by a combination of these from that of many bivalves. No axial rods was observed in contrast to several species of Mytilidae, Veneridae and Ostreidae. These originalities could go to the genus level. |
| Tipo: Text |
Palavras-chave: Pecten maximus; Bivalvia; Ultrastructure; Sperm. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/1991/acte-1725.pdf |
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| Bird, P. |
| A Critical Hazard Analysis Rating (CHAR) based on the Hazard Analysis Critical Control Point (HACCP) concept is used to monitor oyster purification in New South Wales (N.S.W.), Australia. Critical areas for assessment include oyster condition, separation of raw and treated oysters, water quality (turbidity, salinity, temperature, aeration, circulation), purification period, flow rate, steriliser efficiency and tank hydraulics. Batch records and product identification are included. Purification supplements a total management program for producing safe oysters. The rating can also be used to endorse oysters produced under industry self-regulatory, quality assurance programs. The four main CHAR areas are operational standards, quality assurance, public health... |
| Tipo: Text |
Palavras-chave: Saccostrea commercialis; Crassostrea gigas; Bivalvia; Marine molluscs; Safety regulations; Public health; Self purification. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-1607.pdf |
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| Ellner, S. |
| A brief discussion of the physics involved in the destruction of micro organisms by exposure to 2537A of UV energy: UV dose required for destruction of various micro organisms in a dynamic UV reactor (Bio Assay). History of UV design for shellfish depuration: Kelly Purdy Overhead design, Closed channel reactore, Open channel horizontal reactors, Open channel vertical reactors. Factors which effect UV performance: Chemical make up of water-coefficient of absorption, Physical make up of water-turbidity and Color impact, Overall UV transmission limits for effective disinfection. Discussion of the U.S. Public Health Service: effects of color, turbidity, and bacterial densities on UV performance. Impact of temperature on UV lamp performance. Impact of coating... |
| Tipo: Text |
Palavras-chave: USA Coasts; Bivalvia; Marine molluscs; Storage effects; Ultraviolet radiation; Shellfish culture. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-1630.pdf |
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| Maes, P; Paillard, C. |
| The symptom which characterizes the brown ring disease (BRD) in Manilla clam Ruditapes philippinarum has been observed in other Bivalvia species (Veneridae and Pectinidae). Vibrio P1, responsible of the BRD in R. philippinarum , has been detected in other Veneridae which were carrying the symptom. In mussel and oysters which are cultivated in Europe, the symptom has never been reported and Vibrio P1 has not been detected. Experimental contaminations of bivalves of commercial interest with the pathogen showed a clear Vibrio P1 sensitivity of European clam R. decussatus ; this latter seems however to be less sensitive than the Manilla clam. |
| Tipo: Text |
Palavras-chave: Ruditapes philippinarum; Bivalvia; Diseases; Marine molluscs; Pathology; Vibriosis. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-926.pdf |
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| Auffret, Mathieu; Diouris, M; Herry, A. |
| A polyclonal rabbit anti-human lysozyme (Dako) was applied on histological sections from bivalve mollusc and revealed with a mouse anti-rabbit IgG fluorescein conjugated antibody to localise cellular lysozyme in tissues where its activity had previously detected by enzymatic techniques. Labelling occurred in the cytoplasm of epithelial cells covering the body. This is in agreement with the intracellular distribution of this enzyme. In the Lucinid Lucinella divaricata gills, the cytoplasm of bacteriocytes was also labelled. This suggests that antibacterial activity occurred in these cells. Control sections indicate that fluorescence was a consequence of true primary antibody fixation. However, its specificity should be verified by electrophoretical... |
| Tipo: Text |
Palavras-chave: Bivalvia; Immunology; Antibodies; Electrophoresis; Histology. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/1991/acte-1723.pdf |
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| Maestrini, S; Robert, J. |
| Microalgal population of oyster ponds is dominated by several tychobenthic diatoms which provide a very good food to grow oysters. The mechanisms which allow them to dominate have been put under research. H.P.L.C. analysis demonstrated 17 amino acids amounted 10-17% of total DON, i.e. 0.6-11.5 mu g-at/l nitrogen. Serin and glycin were the most abundant. None of the substances was related to the presence of oyster. Glutamic acid, alanin and ornithin concentrations showed the greatest variations; they are suspected to play the major role as nutrient source. Screening of nutritional capabilities of ten local isolates of micro-algae to use 42 organic substances as sole source of nitrogen, demonstrated urea, glutamic acid and hypoxanthin are assimilated by all... |
| Tipo: Text |
Palavras-chave: Bacillariophyceae; Bivalvia; Biomass; Pond culture; Algal settlements; Oyster culture; Nutritive value; Dissolved organic nitrogen. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/acte-1531.pdf |
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| Registros recuperados: 149 | |
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