Search results: 1,184 results (approx.)

1. [English title not available]].

Foreign Title :Régulation de l'excrétion azotée au sein du Système Aquacole à Recyclage Intégral. Rapport de Stage de 2ème année de Master.

Author(s) : Fargier, L.

Publisher : Université de Montpellier, Montpellier, France

Miscellaneous : Régulation de l'excrétion azotée au sein du Système Aquacole à Recyclage Intégral. Rapport de Stage de 2ème année de Master. 2007 pp.30 pp.

2. [English title not available]].

Foreign Title :Interactions trophiques Sarotherodon - Brachionus - Nannochloris dans le Système Aquacole à Recyclage Intégral.

Author(s) : Wilde, N. de

Publisher : Université de Montpellier, Montpellier, France

Miscellaneous : Rapport de Stage de 2ème année de Master. Montpellier, France: Université de Montpellier 2 - Sciences et Techniques du Languedoc, Master BGAE, Spécialité BAEMT Biologie Aquatique en Environnement Méditerranéen et Tropical 2006 pp.22 pp.

3. [English title not available]].

Foreign Title :Dynamique de broutage de Chlorella sp. par Brachionus plicatilis dans le Système Aquacole à Recyclage Intégral.

Author(s) : Wilde, N. de

Publisher : Université de Montpellier, Montpellier, France

Miscellaneous : Rapport de Stage de 1ère année de Master. Montpellier, France: Université de Montpellier 2 - Sciences et Techniques du Languedoc, Master BGAE, Spécialité BAEMT Biologie Aquatique en Environnement Méditerranéen et Tropical 2005 pp.13 pp.

4. A new hydrofeeder for aquaculture.

An automatic feeder capable of delivering feed on a periodic basis in fish culture systems is described. It operates on the principle of water dripping from a spring-loaded water container; the resultant change in weight of the tank effects the release of feed from the respective feed chambers at...

Author(s) : Ayyapan, T. M.

Journal article : INFOFISH International 1999 No.No. 5 pp.31-32

5. Pond water aeration systems.

The state of the art in mechanical aeration of aquaculture ponds is summarized. Topics covered include; principles of aeration, types of aerators (vertical pumps, pump sprayers, propeller aspirator pumps, paddle wheels, diffused air systems and tractor powered systems), aerator performance tests...

Author(s) : Boyd, C. E.

Journal article : Aquacultural Engineering 1998 Vol.18 No.1 pp.9-40 ref.44

6. Custom treads.

Author(s) : Smith, P.

Journal article : Equine Athlete 1998 Vol.11 No.2 pp.28, 30-31

7. Offshore mariculture.

Equipment and policies for offshore mariculture are reviewed under the following headings: Advantages of offshore mariculture systems; Nontechnological constraints to development of offshore mariculture; Approaches to offshore mariculture; Current leasing policies and their relevance to offshore...

Author(s) : Stickney, R. R.

Publisher : John Wiley and Sons, New York, USA

Miscellaneous : Sustainable aquaculture. 1997 pp.53-86 ref.7 pp. of

8. A new model for predicting dissolved oxygen concentration in fish ponds.

A prediction model for the dissolved oxygen concentration in fish ponds, based on an artificial neural network, was developed and tested. Results showed that the predicted results concurred well with measured data.

Author(s) : Wang HongYing; Fan ZengXu; Xue SongTang

Journal article : Transactions of the Chinese Society of Agricultural Engineering 1997 Vol.13 No.4 pp.145-147 ref.2

9. Effect of meal size modulation on growth performance and feeding rhythms in European sea bass (Dicentrarchus labrax, L.).

The combined effect of feeding time and meal size on the growth performance and feeding rhythms were studied in European sea bass, Dicentrarchus labrax, maintained under natural summer-autumn conditions. Three feeding strategies were compared: modulated automatic-feeding (MF), fixed...

Author(s) : Azzaydi, M.; Martínez, F. J.; Zamora, S.; Sánchez-Vázquez, F. J.; Madrid, J. A.

Journal article : Aquaculture 1999 Vol.170 No.3/4 pp.253-266 ref.37

10. The use of mechanical aeration and its effects on water mass.

This work studied some of the aspects associated with the use of artificial aerators in fish ponds. The influence of a diffuser type aerator (AR 120) on the biotic and abiotic variables was evaluated in a fish pond. Three points in the pond were selected for taking samples: 5, 10 and 23 m from the...

Author(s) : Sipaúba-Tavares, L. H.; Freitas, A. M.; Braga, F. M. S.

Journal article : Revista Brasileira de Biologia 1999 Vol.59 No.1 pp.33-42 ref.20

11. Water quality within baitfish spawning mats during egg incubation in commercial ponds.

A collection system was developed to measure dissolved oxygen (DO) concentrations and other water quality variables from within baitfish (unspecified) spawning mats during egg incubation in commercial ponds. A hand-operated vacuum pump was used to draw water from 3 pierced plastic pipes inserted...

Author(s) : Stone, N.; Park, E.; Thomforde, H.

Journal article : North American Journal of Aquaculture 1999 Vol.61 No.2 pp.107-114 ref.28

12. Contaminant washout in a hydraulically integrated serial turbidostat algal reactor (HISTAR).

A hydraulically integrated serial turbidostat algal reactor (HISTAR) was mathematically modelled and designed for large-scale production of microalgae (for the commercial culture of bivalve molluscs). HISTAR, which combines turbidostats with a series of continuous-flow stirred-tank reactors...

Author(s) : Theegala, C. S.; Malone, R. F.; Rusch, K. A.

Journal article : Aquacultural Engineering 1999 Vol.19 No.4 pp.223-241 ref.21

13. The power law in particle size analysis for aquacultural facilities.

Fine particles tend to accumulate in recirculating aquacultural facilities, which can lead to serious fish health problems. the literature indicated thea in many particle systems, the particle size distribution may be accurately represented by a 2-parameter, hyperbolic power-law function, dN/dl =...

Author(s) : Patterson, R. N.; Watts, K. C.; Timmons, M. B.

Journal article : Aquacultural Engineering 1999 Vol.19 No.4 pp.259-273 ref.12

14. Paddlewheel aerator oxygen transfer efficiencies at three salinities.

Oxygen transfer rates, or standard aeration efficiencies (SAE), were measured using 7 paddle-wheel impellers (for aquaculture ponds) at 3 salinities (0, 1.1 and 2.2%) and with 2 aeration devices (0.37 and 0.75 kW) in clean water tests. Oxygen transfer rates increased significantly at higher...

Author(s) : Fast, A. W.; Tan, E. C.; Stevens, D. F.; Olson, J. C.; Qin JianGuang; Barclay, D. K.

Journal article : Aquacultural Engineering 1999 Vol.19 No.2 pp.99-103 ref.18

15. A submerged cage designed for aquatic research.

The design for a submerged cage is described that is suitable for aquaculture research and is durable, portable, and affordable. The 1.0-m3 cages are constructed of galvanized-steel strips and semi-rigid, high-density polyethylene mesh. The strips are welded together to form panels. The mesh is...

Author(s) : Brenden, T. O.; Murphy, B. R.; Manos, S.; Vandergoot, C. S.

Journal article : North American Journal of Aquaculture 1999 Vol.61 No.4 pp.359-362 ref.4

16. Designed ecosystems for aquaculture; the Clemson partitioned aquaculture system.

The partitioned aquaculture system (PAS) developed at Clemson University (South Carolina, USA) is described. The basic premise of the system is to physically separate the fish culture unit from the waste water treatment unit to facilitate better management of fish production and waste removal and...

Author(s) : Brune, D. E.; Collier, J. A.; Schwedler, T. E.; Eversole, A. G.

Publisher : American Society of Agricultural Engineers (ASAE), St Joseph, USA

Conference paper : ASAE/CSAE-SCGR Annual International Meeting, Toronto, Ontario, Canada, 18-21 July, 1999. 1999 pp.20 pp. ref.11

17. The development of winter flounder (Pleuronectes americanus) for aquaculture in Atlantic Canada: current status and future prospects.

Winter flounder has been identified as a candidate for aquaculture in Atlantic Canada. Recent advances and challenges that lie ahead in development of winter flounder for aquaculture are discussed with emphasis on the development of techniques and technology for larval rearing and juvenile grow-out.

Author(s) : Litvak, M. K.

Conference paper; Journal article : Aquaculture 1999 Vol.176 No.1/2 pp.55-64 ref.33

18. Diversification of flatfish culture in Chile.

The work of the Fundación Chile (FCH) on introducing flatfish aquaculture into Chile is described. The species used included turbot (Scopthalmus maximus), flounder (Paralichthys adspersus), hirame (Paralichthys olivaceus) and Atlantic halibut (Hippoglossus hippoglossus). The current status of and...

Author(s) : Alvial, A.; Manríquez, J.

Conference paper; Journal article : Aquaculture 1999 Vol.176 No.1/2 pp.65-73 ref.7

19. Sorting fish by computer vision.

In fresh-water fish farms which grow a few fish species together in a pond (polyculture fish farming), it is necessary to sort harvested fish according to species and size for optimal marketing. An image processing algorithm for discrimination between images of 3 fish species had been developed and ...

Author(s) : Zion, B.; Shklyar, A.; Karplus, I.

Journal article : Computers and Electronics in Agriculture 1999 Vol.23 No.3 pp.175-187 ref.10

20. CIGR handbook of agricultural engineering, Volume 2: Animal production and aquacultural engineering.

This book, edited by the International Commission of Agricultural Engineering (CIGR), is the second in a series of 5 handbooks on agricultural engineering topics. The book contains 2 parts: livestock housing and environment, and aquacultural engineering. Part I has 7 chapters; characteristics and...

Publisher : American Society of Agricultural Engineers (ASAE), St Joseph, USA

Book : CIGR handbook of agricultural engineering, Volume 2: Animal production and aquacultural engineering. 1999 pp.xix + 359 pp.

21. An emergency aeration system for use in aquaculture.

An automatic emergency aeration device for use in aquaculture facilities was constructed. The device, comprising a press-differential switch, emergency air pump and standard vehicle batteries, has been successfully tested for operation in an indoor fish rearing system. The equipment introduces...

Author(s) : Appelbaum, S.; Prilutsky, A.; Birkan, V.

Journal article : Aquacultural Engineering 1999 Vol.20 No.1 pp.17-20 ref.3

22. A live food feeder.

An automatic, adjustable feeder for feeding live organisms to larval fish and invertebrates is described. The device comprises a conical feed hopper, control unit and air-lift pump. The feeder has been successfully used in feeding larval fish with Artemia nauplii.

Author(s) : Appelbaum, S.; Birkan, V.

Journal article : Aquacultural Engineering 1999 Vol.20 No.1 pp.37-41 ref.3

23. Modeling the major limitations on nitrification in floating-bead filters.

A model was developed and calibrated to experimental data, to formulate a theoretical description of nitrification in floating bead filters (to maintain water quality in recirculating aquaculture systems). Model results were consistent with the literature, indicating that the inverse relationship...

Author(s) : Golz, W. J.; Rusch, K. A.; Malone, R. F.

Journal article : Aquacultural Engineering 1999 Vol.20 No.1 pp.43-61 ref.32

24. Changes in some water quality conditions in recycling water using three types of biofiltration systems during the production of the sharptooth catfish Clarias gariepinus (Burchell). Part II: Growth and production of sharptooth catfish over a period of 78 days.

An investigation into the growth and production of C. gariepinus was conducted over 75 days in recirculating water, using 3 types of biofiltration systems. Yields fluctuating between 195.2 and 242.1 kg were obtained with the mean fish mass per m3 of water ranging between 19.5 and 22.5 kg. A...

Author(s) : Prinsloo, J. F.; Roets, W.; Theron, J.; Hoffman, L. C.; Schoonbee, H. J.

Journal article : Water SA 1999 Vol.25 No.2 pp.253-256 ref.13

25. Changes in some water quality conditions in recycling water using three types of biofiltration systems during the production of the sharptooth catfish Clarias gariepinus (Burchell). Part I: Relative efficiency in the breakdown of nitrogenous wastes by the different biofiltration units.

A comparison is made of the relative efficiencies in the breakdown of nitrogenous wastes of 3 types of water recirculation biofiltration units used during the production of the sharptooth catfish Clarias gariepinus. Two types of trickling filters were employed. One contained PVC shavings with a...

Author(s) : Prinsloo, J. F.; Roets, W.; Theron, J.; Hoffman, L. C.; Schoonbee, H. J.

Journal article : Water SA 1999 Vol.25 No.2 pp.239-252 ref.33