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- Bratvold, D., et al. Show all 2 Author
- Aquaculture 2001 no.1/2 pp. 81-94
- Litopenaeus vannamei; shrimp culture; water quality; microorganisms; surfaces; tanks; sand; body weight; ash; pH; ammonia; photosynthesis; mineralization; carbon; phytoplankton; nitrites; nitrification; microbial activity; surface area; sediments; algae and seaweeds; biogeochemical cycles; intensive forestry; biomass production
- ... Growth and production of Pacific white shrimp (Litopenaeus vannamei) was examined along with water quality, and general indicators of microbial activity in replicate intensive tank cultures with no sediment, sand sediment, and sand sediment together with additional vertical surfaces (sand/mat). All treatments received similar feed and fertilizer input. Initial linear shrimp growth rates was relati ...
- Bratvold, D., et al. Show all 6 Authors
- Aquaculture 2003 no.1/4 pp. 235-248
- shrimp culture; ponds; aeration; spatial variation; water flow; pH; photosynthesis
- ... Intensive shrimp ponds are commonly aerated by placing paddlewheel aerators parallel to the pond dikes. This placement creates a relatively rapid water current along the pond banks, while leaving a center region with much slower flow. Implications of this flow mode were studied in three 0.25-ha ponds. Measurements of water flow, sludge depth, dissolved oxygen and pH were taken throughout a pond, a ...