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Biomass production and nutrient dyna...

Licamele, Jason.

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Biomass production and nutrient dynamics in an aquaponics system.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Biomass production and nutrient dynamics in an aquaponics system./
Author:	Licamele, Jason.
Description:	172 p.
Notes:	Source: Dissertation Abstracts International, Volume: 70-12, Section: B, page: 7279.
Contained By:	Dissertation Abstracts International70-12B.
Subject:	Agriculture, Plant Culture. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3387376
ISBN:	9781109534030

Biomass production and nutrient dynamics in an aquaponics system.
Licamele, Jason.

Biomass production and nutrient dynamics in an aquaponics system. - 172 p.

Source: Dissertation Abstracts International, Volume: 70-12, Section: B, page: 7279.

Thesis (Ph.D.)--The University of Arizona, 2009.

The goal of this study was to prove that aquaponic systems can produce lettuce of equal growth and quality compared to hydroponic lettuce production and to determine the stocking density of fish required for plant growth. Aquaponics is the integration of recirculating aquaculture and hydroponic plant production. The project had four objectives. The first objective was to determine the biomass of fish required for plant growth to develop a fish to plant density ratio. The second objective was to compare lettuce grown with aquaponic water and a hydroponic solution under the same environmental conditions. The third objective was to compare the quality of lettuce grown with aquaponics water plus nutrient supplementation with a hydroponic solution. The fourth objective was to determine the nitrogen dynamics in the aquaponic system and to compare the nutrient composition of lettuce grown with aquaponics water with nutrient supplementation and hydroponic solution. It was determined that under the specified environmental conditions 5 kg m-3 of Nile tilapia (O. niloticus) fed 2% of their body weight daily yields on average 4.7 kg m-2 of lettuce (L. sativa cv. Rex) in 35 days. There was no significant difference (p≤0.05) in biomass or chlorophyll concentration index in lettuce (L. sativa cv. Rex) grown with aquaponics water and nutrient supplements versus a hydroponic solution. The aquaponics solution generated equal biomass and chlorophyll concentration indexes compared to the hydroponic solution. Aquaponics water plus supplementation can yield L. sativa cv. Rex with equal biomass accumulation and chlorophyll concentration indexes compared to hydroponics lettuce. Nutrients added to the aquaponics system consisted of iron, manganese, and zinc. These nutrient concentrations became depleted in the aquaponics water over time and were not replenished via the fish feed. Dolomite was added to the aquaponics system every two weeks to increase the buffering capacity of the water and maintain optimal pH levels. Aquaponics lettuce had similar nutrient composition to hydroponic lettuce. One head of L. sativa cv. Rex (176.75 +/- 31.03) will assimilate approximately 5.96 grams of nitrogen (3.38% per dry gram lettuce). One kilogram of fish will yield 6.4 lettuce heads (1,128 grams) and fixate 38.13 grams of nitrogen.

ISBN: 9781109534030Subjects--Topical Terms:

1018669
Agriculture, Plant Culture.

Biomass production and nutrient dynamics in an aquaponics system.
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020 $a 9781109534030
035 $a (UMI)AAI3387376
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100 1 $a Licamele, Jason. $3 1683751
245 1 0 $a Biomass production and nutrient dynamics in an aquaponics system.
300 $a 172 p.
500 $a Source: Dissertation Abstracts International, Volume: 70-12, Section: B, page: 7279.
500 $a Advisers: Gene Giacomelli; Kevin Fitzsimmons.
502 $a Thesis (Ph.D.)--The University of Arizona, 2009.
520 $a The goal of this study was to prove that aquaponic systems can produce lettuce of equal growth and quality compared to hydroponic lettuce production and to determine the stocking density of fish required for plant growth. Aquaponics is the integration of recirculating aquaculture and hydroponic plant production. The project had four objectives. The first objective was to determine the biomass of fish required for plant growth to develop a fish to plant density ratio. The second objective was to compare lettuce grown with aquaponic water and a hydroponic solution under the same environmental conditions. The third objective was to compare the quality of lettuce grown with aquaponics water plus nutrient supplementation with a hydroponic solution. The fourth objective was to determine the nitrogen dynamics in the aquaponic system and to compare the nutrient composition of lettuce grown with aquaponics water with nutrient supplementation and hydroponic solution. It was determined that under the specified environmental conditions 5 kg m-3 of Nile tilapia (O. niloticus) fed 2% of their body weight daily yields on average 4.7 kg m-2 of lettuce (L. sativa cv. Rex) in 35 days. There was no significant difference (p≤0.05) in biomass or chlorophyll concentration index in lettuce (L. sativa cv. Rex) grown with aquaponics water and nutrient supplements versus a hydroponic solution. The aquaponics solution generated equal biomass and chlorophyll concentration indexes compared to the hydroponic solution. Aquaponics water plus supplementation can yield L. sativa cv. Rex with equal biomass accumulation and chlorophyll concentration indexes compared to hydroponics lettuce. Nutrients added to the aquaponics system consisted of iron, manganese, and zinc. These nutrient concentrations became depleted in the aquaponics water over time and were not replenished via the fish feed. Dolomite was added to the aquaponics system every two weeks to increase the buffering capacity of the water and maintain optimal pH levels. Aquaponics lettuce had similar nutrient composition to hydroponic lettuce. One head of L. sativa cv. Rex (176.75 +/- 31.03) will assimilate approximately 5.96 grams of nitrogen (3.38% per dry gram lettuce). One kilogram of fish will yield 6.4 lettuce heads (1,128 grams) and fixate 38.13 grams of nitrogen.
590 $a School code: 0009.
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650 4 $a Engineering, Agricultural. $3 1019504
650 4 $a Agriculture, Fisheries and Aquaculture. $3 1020913
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710 2 $a The University of Arizona. $b Agricultural & Biosystems Engineering. $3 1019524
773 0 $t Dissertation Abstracts International $g 70-12B.
790 1 0 $a Giacomelli, Gene, $e advisor
790 1 0 $a Fitzsimmons, Kevin, $e advisor
790 1 0 $a Giacomelli, Gene $e committee member
790 1 0 $a Fitzsimmons, Kevin $e committee member
790 1 0 $a Kubota, Chieri $e committee member
790 1 0 $a Cuello, Joel $e committee member
790 $a 0009
791 $a Ph.D.
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856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3387376