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

Degremont, Lionel; Boudry, Pierre; Soletchnik, Patrick; Bedier, Edouard; Ropert, Michel; Samain, Jean-francois.

Three successive generations were produced between 2001 and 2003 to assess to what extent genetic variability exists for survival in juvenile oysters Crassostrea gigas. For each generation, two groups were selected for their high ("R" for resistant) and low ("S" for susceptible) survival. Significant differences in mortality were observed during the first year in Riviere d'Auray (RA) (Brittany-France). However, low and similar mortality were observed for both groups, with no significant difference between groups in the first and second generation in this site, where the first summer is the critical, sensitive period with a clear age effect. In Baie des Veys (BDV) (Normandie-France), where mortalities usually mainly affect adults, mortality between groups,...

Tipo: Text

Palavras-chave: Crassostrea gigas; Spat; Spatial variations; Survival; Rearing; Mollusc culture; Marine molluscs; Environmental factors; Nursery grounds; Mortality causes; Biological age; Aquaculture techniques.

Ano: 2005

URL: http://archimer.ifremer.fr/doc/2005/acte-3385.pdf

Les filières pour l'élevage des moules

Prophylactic strategies and zootechnic measures, recent advances

Bompais, Xavier.

This handbook has been written for those who want to use long-lines for mussel culture. It describes different types of mussel long-lines, moorings and components: specifications, advantages, disadvantages. It brings up some methods for lay down mooring and also operating mussel long-lines

Tipo: Text

Palavras-chave: France; Mooring lines; Off bottom culture; Mooring systems; Aquaculture techniques; Breeding; Mussel culture.

Ano: 1991

URL: http://archimer.ifremer.fr/doc/1991/rapport-1671.pdf

Marine larval fish rearing

Grizel, Henri.

The spread of major diseases of molluscs around the world and the increase of transfers need the development of adapted prophylactic strategies and the increase of research in epidemiology, immunology and genetics. The prophylactic strategies must be based on common laws with the establishment of a list of declarable pathogens, with basic sampling rules (sample size, frequency, definition of geographical areas) and with reglementation of the internal transfers. Moreover, specific adapted diagnosis should be developed to increase the sanitary control performance (e.g. ELISA test, DNA probe, cell culture). In the case of an infectious disease the epidemiology studies should be concerned, the relationship between the culture techniques and the disease, the...

Tipo: Text

Palavras-chave: Bonamia ostreae; Mollusc culture; Aquaculture techniques; Pathology; Immunology; Genetics; Epidemiology; Fish diseases; Disease control.

Ano: 1989

URL: http://archimer.ifremer.fr/doc/1989/acte-1483.pdf

Differentiation de juveniles de Chlamys varia et Chlamys opercularis

Arnold, C.

Various methods of producing juvenile finfish will be discussed. This includes the intensive production in controlled environments as well as extensive pond production. Factors important to survival such as temperature, salinity, pH, water quality, bacteria and parasites, density, food types and food density as well as information on food and food production will be given.

Tipo: Text

Palavras-chave: Fish culture; Aquaculture development; Aquaculture techniques; Rearing.

Ano: 1989

URL: http://archimer.ifremer.fr/doc/1989/acte-1445.pdf

Concevoir des structures pour l'élevage des poissons en mer

Morizur, Yvon.

The recent developments in collecting techniques for spat of Chlamys operoularis and Chlamys varia make it necessary to find criteria for separating these two species at early life stages. Biométrie criteria for differenciating between species have been found to be usable on individuals of a height superior to 3 mm. A quick différenciation of smaller individuals is possible by observation, under light microscope, of the périostracum external morphology on left valves.

Tipo: Text

Palavras-chave: Chlamys; Aquaculture techniques; Juveniles.

Ano: 1977

URL: http://archimer.ifremer.fr/doc/1977/acte-2343.pdf

Culture en conditions optimisées de la macroalgue rouge <Gracilaria gracilis> (stackhouse) steentofr et al. dans le lac de Bizerte

Priour, Daniel.

The quick evolution of fish farming in Europe, and its development towards the open sea needs suitable farming tools. These tools must withstand the difficult sea states, but they must be easy to use, well adapted to the fish farming and not too much expensive. This book helps the design of such tools. It defines the solicitations of the sea on all the structures, and presents rules and methods to control these solicitations. Here, a structure is composed of a rearing support, a mooring system and equipments. This book describes these components, class them and gives lists of providers. The rearing support can be a cage, a group of cages or a boat. The support can float or to be submersible. The mooring system can be made up ropes, chains, anchors,...

Tipo: Text

Palavras-chave: Aquaculture equipment; Mooring systems; Anchoring; Aquaculture techniques; Structures; Sea water; Life support systems; Aquatic environment; Cage culture; Marine technology; Rearing; Fish culture.

Ano: 1995

URL: http://archimer.ifremer.fr/doc/1995/rapport-1667.pdf

Cultivo experimental en el mar de alga roja Hypnea musciforms en el área de Santa Marta, Caribe colombiano

Ksouri, J.; Challougui, I.; Mensi, F..

La culture de Gracilaria a été réalisée selon le mode de bouturage dans la partie Nord-Est du lac de Bizerte du 15 Avril au 31 Mai 2006 afin de déterminer l'effet des conditions initiales optimisées sur le rendement final. Ces conditions initiales, sont caractérisées par une culture sur le fond (sur cordes tendues), un poids initial des touffes de 200 g, une distance entre les rangées de culture de 50 cm et un écartement entre les touffes de 30 cm; de ce fait, la densité initiale est de 1,4 kg/m². Au terme de 46 jours de culture, nous avons enregistré un accroissement du poids de 200 g à 1280 g engendrant un taux de croissance spécifique de 4,03 %/j et une densité finale de 9,1kg/m² (soit 91t poids frais/ha).

Tipo: Journal Contribution

Palavras-chave: Algal culture; Aquaculture systems; Aquaculture techniques; Density; Growth rate; Off-bottom culture; Seaweed culture; Aquaculture techniques; Seaweed culture; Algal culture; Density; Growth rate; Http://aims.fao.org/aos/agrovoc/c_28992; Http://aims.fao.org/aos/agrovoc/c_6914; Http://aims.fao.org/aos/agrovoc/c_31892; Http://aims.fao.org/aos/agrovoc/c_2186; Http://aims.fao.org/aos/agrovoc/c_16130.

Ano: 2008

URL: http://hdl.handle.net/1834/3795

Camacho, Olga; Montaña Fernández, Julián.

Con el fin de proporcionar información sobre cultivos macroalgales en Colombia, se realizaron ensayos de cultivo en medio natural del alga roja Hypnea musciformis. El estudio se desarrolló entre febrero-junio de 2006 en la zona costera de Santa Marta, Caribe colombiano. Los ensayos se hicieron utilizando bolsas de polipropileno suspendidas en una línea superficial en el mar, considerando: lugar (Taganga y Puerto Luz), época climática (seca mayor y lluviosa menor) y tiempo de cosecha (semanal y quincenal). Se obtuvo en promedio total una tasa de crecimiento diaria (TCD) de 2.66 %. No se encontraron diferencias significativas entre los ensayos desarrollados; sin embargo, los mejores resultados se obtuvieron en Taganga en los ensayos semanales durante la...

Tipo: Journal Contribution

Palavras-chave: Algal culture; Aquaculture techniques; Marine aquaculture; Hypnea musciformis.

Ano: 2011

URL: http://hdl.handle.net/1834/4429

Effect of season on controlled propagation of the African catfish, clarias gariepinus (Burchell 1822).

Ajustement de certains paramètres de culture par bouturage de Gracilaria verrucosa (algue rouge), Hudson papenfuss, dans le lac de Bizerte (Tunisie)

Ayinla, O.A.; Nwadukwe, F.O..

The effect of season on the controlled propagation of C. gariepinus was investigated. The hypophysation of C. gariepinus using the pituitary extract from the sacrificed C. gariepinus was carried out from July, 1987 to June 1988. The female broodstock weight ranged from 0.50kg while the male weight, from 0.5kg to 0.6kg. The condition factor of the female broodfish was more or less uniform (1.3 to 1.7). The results showed that there was peak production of eggs by the female during the rainy season. Eggs production for rainy season ranged from 28,000 eggs/kg body weight in June to 37,600 eggs/kg body weight in August. The percentage hatching of the fertilized eggs was also higher in the rainy season than the dry season. The highest hatching of the...

Tipo: Report

Palavras-chave: Aquaculture techniques; Aquaculture development; Aquaculture techniques; Http://aims.fao.org/aos/agrovoc/c_28992.

Ano: 1990

URL: http://hdl.handle.net/1834/2436

Experimental studies on acclimatization of marine shrimps, Penaeus monodon and Metapenaeus monoceros to freshwater

Ksouri, J.; Mensi, F.; Ben Said, R..

Cette étude, réalisée dans la partie Nord-Est du lac de Bizerte du premier Avril au 30 Juin 1999, porte sur l’étude de l’effet des deux paramètres, distance entre les touffes et poids initial des touffes, sur le rendement de culture par bouturage de Gracilaria verrucosa selon le mode des boudins de sable. Il en ressort que les conditions optimales de culture de cette espèce sont engendrées par un poids initial de 200 g, une distance entre les fragments de thalles de 30 cm et une récolte impérativement vers la fin du mois de Juin. Dans ces conditions, on enregistre un passage du poids de 200 g à 1087 g, un taux de croissance spécifique de 2,20 et une densité finale de 3,74 kg/m².

Tipo: Journal Contribution

Palavras-chave: Marine sciences; Weight; Algae; Seaweed culture; Aquaculture techniques; Gracilaria verrucosa; Http://aims.fao.org/aos/agrovoc/c_49675.

Ano: 2000

URL: http://hdl.handle.net/1834/4287

Larval rearing techniques and stock enhancement of silver seabream (Rhabdosargus sarba) in Mauritius

Rathacharen, S.; Laxminarayana, A.; Venkatasami, O.; Codabaccus, B..

The adult shrimps, Penaeus monodon and Metapenaeus monoceros were induced to mature and spawn by eyestalk ablation. The larvae of both the species of shrimps were reared up to post larval stage on a diet of the phytoplankton, Chaetoceros calcitrans. The post larvae of M. monoceros were fed with artificial feeds only, whereas the post larvae of P. monodon were fed on small quantities of Artemia sp. in addition to artificial feed. After post larval stage, PL-20, the post-larvae were acclimatized to freshwater. Acclimatization was tried for different periods ranging between 2 and 20 days. The best survival rate was obtained for an acclimatization period of 5 days. Results obtained so far showed that the growth of P. monodon was significantly higher in...

Tipo: Preprint

Palavras-chave: Aquaculture techniques; Marine shrimp culture; Aquaculture techniques; Http://aims.fao.org/aos/agrovoc/c_28992.

Ano: 2005

URL: http://hdl.handle.net/1834/1083

International study on Artemia : 48. The effect of temperature on cyst hatching larval survival and biomass production for different geographical strains of brine shrimp Artemia spp.

Baccus, H.; Ramsaha, S.; Rathacharen, S.; Hassea, R.; Auliar, I.; Codabaccus, B..

The silver sea bream (Rhabdosargus sarba), has great commercial value in Mauritius. The species is a potential candidate for aquaculture. The sea bream, a winter spawner, was successfully induced to breed in captivity with HCG (Human Chorionic Gonadotropin) hormone injection (250 IU/kg body weight) in 1989 at the Albion Fisheries Research Centre. In 1997, the Coastal Fisheries Resources and Environment Conservation Project of Japanese International Cooperation Agency (JICA) was launched to enhance the stock of the silver sea bream in the lagoon. This species breeds under hatchery conditions during the spawning season. Annually, the hatchery-produced sea bream fingerlings, of 2.0 to 2.5 cm body length, were released in the coastal areas. The larval rearing...

Tipo: Journal Contribution

Palavras-chave: Rhabdosargus sarba; Aquaculture techniques; Larval development; Aquaculture techniques; Larvae; Http://aims.fao.org/aos/agrovoc/c_28992; Http://aims.fao.org/aos/agrovoc/c_4204.

Ano: 2005

URL: http://hdl.handle.net/1834/1064

Vanhaecke, P.; Sorgeloos, P..

The effect of temperature on different geographical strains of Artemia has been studied for the following criteria: the hatchability of the cysts, the resistance of the larvae to high temperature (34°C) and the biomass production of larvae cultured under standard conditions. Experimental temperatures ranged from 25° to 37°C for the hatching criteria and from 20° to 32.5°C for the biomass production.Both the hatching percentage and growth performance are affected by temperature. However, the relative and quantitative impact of temperature varies widely among Artemia strains. This is also the case for the temperature resistance of the larvae. The impact of increasing temperatures on cyst hatching as well as the...

International study on Artemia : 24. Cold storage of live Artemia nauplii from various geographical sources: potentials and limits in aquaculture

Palavras-chave: Aquaculture techniques; Biomass; Brine shrimp culture; Growth; Larvae; Survival; Temperature effects; Artemia.

Ano: 1989

URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3194

Léger, P.; Vanhaecke, P.; Sorgeloos, P..

Freshly-hatched Artemia nauplii from various geographical sources survived storage in a refrigerator (2-4°C) at densities of 2000 per ml and above. Except for Artemia from Chaplin Lake and Buenos Aires, naupliar viability was very high even after 48 h storage, and did not decrease significantly after a 24 h post-storage transfer to 25°C. Neither the naupliar dry weight nor biochemical composition changed significantly during refrigeration for most strains tested. Comparative culture-tests with stored and freshly-hatched nauplii as food for juvenile marine mysids Mysidopsis bahia M. and larval carp Cyprinus carpio L. revealed similar production performances.

Variation in egg and larval quality in various fish and crustacean species

Palavras-chave: Aquaculture techniques; Cold storage; Nauplii; Artemia.

Ano: 1983

URL: http://www.vliz.be/imisdocs/publications/261894.pdf

Lavens, P.; Sorgeloos, P..

It is generally accepted, that a major constraint in the further development of marine fish and crustacean aquaculture, is the variable quality of eggs and larvae used for the hatchery-production of fry. Nonetheless, valid criteria to evaluate optimal egg quality have not been identified yet. Instead, particular indicators, are used, e.g. the fertilization and hatching rate, overall culture success during the first rearing period, etc., but these are not totally objective because hatchery-specific conditions may interfere. The biochemical composition of the egg may be one of the possible determinants of egg quality, which can be evaluated on a more objectie basis. In this respect, studied have been initiated to analyze in freshly-released eggs, the levels...

Production, utilization and manipulation of Artemia as food source for shrimp and fish larvae

Palavras-chave: Aquaculture techniques; Biochemical composition; Crustacean culture; Eggs; Fatty acids; Fish culture; Hatcheries; Quality control; Vitamin C.

Ano: 1991

URL: http://www.vliz.be/imisdocs/publications/262328.pdf

Lavens, P.; Léger, P.; Sorgeloos, P..

Larval culture of fish and shrimp can be seriously improved thanks to the results of recent research and development in the field of Artemia production and utilization. The present article summarizes the most recent techniques for optimation in production and use of different stages of Artemia in aquaculture:- cyst selection in function of hatching quality, purity, biometric characteristics, etc. - nauplii production: techniques for hatching, disinfection and decapsulation;- nutritional value of nauplii: quantitative aspects with regard to essential components and contaminants;- bioencapsulation of nauplii with different enrichment components: methodology and results in fish and shrimp culturing;- utilization of (pre-)...

Onshore nursery rearing of bivalve molluscs in Belgium

Palavras-chave: Aquaculture techniques; Brine shrimp culture; Developmental stages; Fish culture; Food organisms; Nutritive value; Shrimp culture; Artemia.

Ano: 1986

URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3245

Claus, C.; Maeckelberghe, H.; De Pauw, N..

From October to April the growth of spat of Ostrea edulis, Crassostrea gigas and Venerupis semidecussata in an onshore nursery was recorded as a function of water temperature and food level. The results of this study indicate that even very eutrophic water, such as that of the Sluice Dock at Ostend, Belgium, does not provide enough microalgae to sustain growth of bivalve spat during winter, irrespective of whether the water is heated or not. It is necessary to supply additional food (cultured live algae). Food shortage for three months at higher temperature induced a stress situation resulting in high mortality rates, even after transferring all the spat into an optimal combination of temperature and food availability.

Rearing techniques for difficult marine fish larvae

Palavras-chave: Aquaculture techniques; Rearing; Bivalvia; Molluscs; Belgium.

Ano: 1983

URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3369

Dhert, Ph.; Divanach, P.; Kentouri, M.; Sorgeloos, P..

In finfish mariculture, seed production and larval rearing still form the bottleneck for all ongrowing operations and are considered as the main limiting factor for industrial development. Through trial and error more than through biological understanding two opposite hatchery techniques have been developed which surprisingly control a multiparametric combination of different factors but aspire to the same objective of conformity with wild standards and the cost-effective production of larvae. In intensive aquaculture, the rearing technique is characterised by high initial larval densities in small tanks under strict hydraulic, thermic, and nutritional conditions. The light conditions are artificial. The temperature and quality of water are controlled. The...

Production and application of on-grown Artemia in freshwater ornamental fish farm

Palavras-chave: Aquaculture techniques; Environmental conditions; Fish eggs; Fish larvae; Food organisms; Industrial production; Marine fish; Rearing; Seed (aquaculture); Artemia; Brachionus plicatilis; Pisces [Fish].

Ano: 1998

URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=301

Lim, L.C.; Soh, A.; Dhert, P.; Sorgeloos, P..

This paper describes a pilot culture system for the production of on-grown Artemia in freshwater ornamental fish farms. The system had 21 culture units, each consisting essentially of three components: an oval-shaped raceway, an air-water lift system and two waste collectors. Using artificial seawater at 20 ppt for culture and at a mean production rate of 3 kg/m3 of water in a 12-day cycle, the system had a production capacity of 8 metric tons of on- grown Artemia a year. Biochemical analyses were preformed to evaluate the nutritional value of the on-grown Artemia against three conventional live feeds, viz. live Artemia nauplii, live Moina...

Technological aspects of the batch culturing of Artemia in high densities

Palavras-chave: Aquaculture economics; Aquaculture techniques; Biochemical composition; Diets; Fish culture; Food organisms; Moina; Nutritive value; Ornamental fish; Artemia.

Ano: 2001

URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8491

Bossuyt, E.; Sorgeloos, P..

Contrary to the rearing of brine shrimp at laboratory scale which is current practice and well described in many papers, specific information on the high-density culturing of this species is scanty. This paper briefly reviews the different culturing methods precognized so far and discussed the advantages of batch culture in air-water-lift raceways: the latter technology has been optimized during the last 4 years at the Artemia Reference Center and permits a current production of 2 kg biomass/m³ in 2 weeks culturing at 25°C.A detailed description is given of:1. construction of the raceways: tank design and characteristics and selection of materials: construction, positioning and operation of the air-water-lifts;2. techniques for water...