Land-based poly-eco-aquaculture of abalone and seaweed in a small scale recirculating system using a recycled freezer container

To minimize environmental problems associated with aquaculture, we wanted to develop an abalone and seaweed polyculture approach in a small scale recirculating aquaculture system housed in an air-conditioned recycled freezer container. We conducted two experiments; each used two recirculating system...

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Main Authors:	Rahman, Mohammad Mustafizur, Kadowaki, Shusaku, Linn, Saw Mya, Yamada , Yohei
Format:	Article
Language:	English
Published:	Fisheries Research Agency, Japan 2012
Subjects:	SH Aquaculture. Fisheries. Angling
Online Access:	http://irep.iium.edu.my/2835/ http://irep.iium.edu.my/2835/ http://irep.iium.edu.my/2835/4/Land-based_Poly-eco-aquaculture_of_Abalone_and_Seaweed_in_a_Small_Scale_Recirculating_System_Using_a_Recycled_Freezer_Container.pdf

id	iium-2835
recordtype	eprints
spelling	iium-28352012-05-09T07:27:36Z http://irep.iium.edu.my/2835/ Land-based poly-eco-aquaculture of abalone and seaweed in a small scale recirculating system using a recycled freezer container Rahman, Mohammad Mustafizur Kadowaki, Shusaku Linn, Saw Mya Yamada , Yohei SH Aquaculture. Fisheries. Angling To minimize environmental problems associated with aquaculture, we wanted to develop an abalone and seaweed polyculture approach in a small scale recirculating aquaculture system housed in an air-conditioned recycled freezer container. We conducted two experiments; each used two recirculating systems. Each system consisted of two biofilters and two abalone culture tanks. Each abalone culture tank contained three plastic baskets for abalone. In the first experiment one of the systems also incorporated a protein skimmer (PS) to evaluate its effects on water quality and abalone growth. In the second experiment, the same system was incorporated with both a PS and a seaweed culture tank (PSS) to evaluate their combined effects on water quality and abalone growth. The abalone stocking density was 20 individuals (average weight 5.3-0.08 g and 8.7-1.9 g in the first and second experiment) per basket. Pelleted artificial feed was supplied six days per week at 2.3% of abalone body weight per day. The pH, dissolved oxygen (DO), total inorganic nitrogen (TIN), total inorganic phosphorus (TIP), and bacterial abundance were monitored daily. The duration of first and second experiments were 87 and 70 days. DO concentration was significantly higher in the system with the PS. An opposite trend was observed in TIN concentration and bacterial abundance. PS had no effect on pH or TIP. PSS influenced water quality parameters and bacterial abundance similar to PS except TIP, which was greater in the system with PSS than without. Treatment effects on growth, feed consumption, and FCR were similar in both experiments. Abalone consumed less feed and had significantly higher FCR and lower growth rates in the control. However, feed consumption, FCR and growth rate of abalone were comparatively better in the PSS system than in the PS system. The PSS system was not only better for abalone growth, but also produced an additional crop in the form of seaweed. The system did not discharge waste. Therefore, future abalone culture systems can be focused on this model. However, more research is necessary before extrapolating results to an industrial level. Fisheries Research Agency, Japan 2012 Article PeerReviewed application/pdf en http://irep.iium.edu.my/2835/4/Land-based_Poly-eco-aquaculture_of_Abalone_and_Seaweed_in_a_Small_Scale_Recirculating_System_Using_a_Recycled_Freezer_Container.pdf Rahman, Mohammad Mustafizur and Kadowaki, Shusaku and Linn, Saw Mya and Yamada , Yohei (2012) Land-based poly-eco-aquaculture of abalone and seaweed in a small scale recirculating system using a recycled freezer container. Bulletin Fisheries Research Agency, 35. pp. 77-84. ISSN 1346-9894 http://www.fra.affrc.go.jp/bulletin/bull/bull35/35-9.pdf
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	SH Aquaculture. Fisheries. Angling
spellingShingle	SH Aquaculture. Fisheries. Angling Rahman, Mohammad Mustafizur Kadowaki, Shusaku Linn, Saw Mya Yamada , Yohei Land-based poly-eco-aquaculture of abalone and seaweed in a small scale recirculating system using a recycled freezer container
description	To minimize environmental problems associated with aquaculture, we wanted to develop an abalone and seaweed polyculture approach in a small scale recirculating aquaculture system housed in an air-conditioned recycled freezer container. We conducted two experiments; each used two recirculating systems. Each system consisted of two biofilters and two abalone culture tanks. Each abalone culture tank contained three plastic baskets for abalone. In the first experiment one of the systems also incorporated a protein skimmer (PS) to evaluate its effects on water quality and abalone growth. In the second experiment, the same system was incorporated with both a PS and a seaweed culture tank (PSS) to evaluate their combined effects on water quality and abalone growth. The abalone stocking density was 20 individuals (average weight 5.3-0.08 g and 8.7-1.9 g in the first and second experiment) per basket. Pelleted artificial feed was supplied six days per week at 2.3% of abalone body weight per day. The pH, dissolved oxygen (DO), total inorganic nitrogen (TIN), total inorganic phosphorus (TIP), and bacterial abundance were monitored daily. The duration of first and second experiments were 87 and 70 days. DO concentration was significantly higher in the system with the PS. An opposite trend was observed in TIN concentration and bacterial abundance. PS had no effect on pH or TIP. PSS influenced water quality parameters and bacterial abundance similar to PS except TIP, which was greater in the system with PSS than without. Treatment effects on growth, feed consumption, and FCR were similar in both experiments. Abalone consumed less feed and had significantly higher FCR and lower growth rates in the control. However, feed consumption, FCR and growth rate of abalone were comparatively better in the PSS system than in the PS system. The PSS system was not only better for abalone growth, but also produced an additional crop in the form of seaweed. The system did not discharge waste. Therefore, future abalone culture systems can be focused on this model. However, more research is necessary before extrapolating results to an industrial level.
format	Article
author	Rahman, Mohammad Mustafizur Kadowaki, Shusaku Linn, Saw Mya Yamada , Yohei
author_facet	Rahman, Mohammad Mustafizur Kadowaki, Shusaku Linn, Saw Mya Yamada , Yohei
author_sort	Rahman, Mohammad Mustafizur
title	Land-based poly-eco-aquaculture of abalone and seaweed in a small scale recirculating system using a recycled freezer container
title_short	Land-based poly-eco-aquaculture of abalone and seaweed in a small scale recirculating system using a recycled freezer container
title_full	Land-based poly-eco-aquaculture of abalone and seaweed in a small scale recirculating system using a recycled freezer container
title_fullStr	Land-based poly-eco-aquaculture of abalone and seaweed in a small scale recirculating system using a recycled freezer container
title_full_unstemmed	Land-based poly-eco-aquaculture of abalone and seaweed in a small scale recirculating system using a recycled freezer container
title_sort	land-based poly-eco-aquaculture of abalone and seaweed in a small scale recirculating system using a recycled freezer container
publisher	Fisheries Research Agency, Japan
publishDate	2012
url	http://irep.iium.edu.my/2835/ http://irep.iium.edu.my/2835/ http://irep.iium.edu.my/2835/4/Land-based_Poly-eco-aquaculture_of_Abalone_and_Seaweed_in_a_Small_Scale_Recirculating_System_Using_a_Recycled_Freezer_Container.pdf
first_indexed	2023-09-18T20:10:29Z
last_indexed	2023-09-18T20:10:29Z
_version_	1777407444851359744

Land-based poly-eco-aquaculture of abalone and seaweed in a small scale recirculating system using a recycled freezer container

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