The performance of seaweed kappaphycus alvarezii and kappaphycus striatum in tank culture system

Little is known on the performance of seaweed cultured in land-based facilities. The present study was conducted to determine the growth performance of Kappaphycus in tank and the effects of tank culture to the seaweed biochemical composition. Two tank culture systems were completed using circular a...

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Main Author:	Wahidatul Husna Zuldin
Format:	Thesis
Language:	English English
Published:	2015
Subjects:	SH388.7-391.5 Algae culture
Online Access:	https://eprints.ums.edu.my/id/eprint/39153/1/24%20PAGES.pdf https://eprints.ums.edu.my/id/eprint/39153/2/FULLTEXT.pdf
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spelling	my-ums-ep.391532024-07-31T03:47:41Z The performance of seaweed kappaphycus alvarezii and kappaphycus striatum in tank culture system 2015 Wahidatul Husna Zuldin SH388.7-391.5 Algae culture Little is known on the performance of seaweed cultured in land-based facilities. The present study was conducted to determine the growth performance of Kappaphycus in tank and the effects of tank culture to the seaweed biochemical composition. Two tank culture systems were completed using circular and raceway tanks and three cultures of 40-days period were performed in each system. Red seaweeds, Kappaphycus alvarezii and Kappaphycus striatum were selected and cultivated in each tank culture system. Using circular tank, four different treatment tanks (T1 with only filtered seawater, T2 with fertilizer enrichment only, T3 with substrate addition only and T4 with the combination of fertilizer enrichment and substrate addition) were tested. In the circular tank culture system, both species were mutually cultivated via line culture method and the seaweed density was reduced accordingly in every culture (Culture 1: 2.40 g L-1, 2: 1.92 g L-1 and 3: 0.96 g L-1). Using Two-way ANOVA statistical analysis, there were no significant differences between the between the factors tested (fertilizer enrichment and substrate addition) and the daily growth rate of Kappaphycus (p>0.05) in every culture with different seaweed density. The maximum daily growth rate was recorded in T4 with lowest seaweed density of 0.96 g L-1 during Culture 3 on K. striatum (2.00±0.03% day-1) and K. alvarezii (1.46±0.06% day-1). In the second part of study, raceway tank was used and modified without any fertilizer enrichment and substrate addition needed. Both Kappaphycus were cultured using loose method in raceway tank. The results indicated that both Kappaphycus succeeded to grow with the highest average daily growth rate for K. striatum was 2.96±0.02% day-1 and for K. alvarezii was 2.13±0.03% day-1 with zero nutrient or substrate enrichment during Culture 2. Kappaphycus striatum was found to grow well in both system compared to K. alvarezi. The results also showed that the biochemical composition of both tank cultured Kappaphycus were comparable with the open sea culture where the average percentage of crude protein, crude fibre and carrageenan content of the Kappaphycus cultured in the tank were fall within the range mentioned in the previous literature. Thus, tank culture system did not significantly affect the biochemical composition of the Kappaphycus. In conclusion, the success in cultivating Kappaphycus using circular and raceway tank indicated that seaweeds are highly potential to be cultivated in land-based facilities comparable with the open sea culture seaweeds. These findings are significant to provide a baseline data and facilitate seaweed research area especially for high quality seaweed seedling production in the future. 2015 Thesis https://eprints.ums.edu.my/id/eprint/39153/ https://eprints.ums.edu.my/id/eprint/39153/1/24%20PAGES.pdf text en public https://eprints.ums.edu.my/id/eprint/39153/2/FULLTEXT.pdf text en validuser masters Universiti Malaysia Sabah Borneo Marine Research Institute
institution	Universiti Malaysia Sabah
collection	UMS Institutional Repository
language	English English
topic	SH388.7-391.5 Algae culture
spellingShingle	SH388.7-391.5 Algae culture Wahidatul Husna Zuldin The performance of seaweed kappaphycus alvarezii and kappaphycus striatum in tank culture system
description	Little is known on the performance of seaweed cultured in land-based facilities. The present study was conducted to determine the growth performance of Kappaphycus in tank and the effects of tank culture to the seaweed biochemical composition. Two tank culture systems were completed using circular and raceway tanks and three cultures of 40-days period were performed in each system. Red seaweeds, Kappaphycus alvarezii and Kappaphycus striatum were selected and cultivated in each tank culture system. Using circular tank, four different treatment tanks (T1 with only filtered seawater, T2 with fertilizer enrichment only, T3 with substrate addition only and T4 with the combination of fertilizer enrichment and substrate addition) were tested. In the circular tank culture system, both species were mutually cultivated via line culture method and the seaweed density was reduced accordingly in every culture (Culture 1: 2.40 g L-1, 2: 1.92 g L-1 and 3: 0.96 g L-1). Using Two-way ANOVA statistical analysis, there were no significant differences between the between the factors tested (fertilizer enrichment and substrate addition) and the daily growth rate of Kappaphycus (p>0.05) in every culture with different seaweed density. The maximum daily growth rate was recorded in T4 with lowest seaweed density of 0.96 g L-1 during Culture 3 on K. striatum (2.00±0.03% day-1) and K. alvarezii (1.46±0.06% day-1). In the second part of study, raceway tank was used and modified without any fertilizer enrichment and substrate addition needed. Both Kappaphycus were cultured using loose method in raceway tank. The results indicated that both Kappaphycus succeeded to grow with the highest average daily growth rate for K. striatum was 2.96±0.02% day-1 and for K. alvarezii was 2.13±0.03% day-1 with zero nutrient or substrate enrichment during Culture 2. Kappaphycus striatum was found to grow well in both system compared to K. alvarezi. The results also showed that the biochemical composition of both tank cultured Kappaphycus were comparable with the open sea culture where the average percentage of crude protein, crude fibre and carrageenan content of the Kappaphycus cultured in the tank were fall within the range mentioned in the previous literature. Thus, tank culture system did not significantly affect the biochemical composition of the Kappaphycus. In conclusion, the success in cultivating Kappaphycus using circular and raceway tank indicated that seaweeds are highly potential to be cultivated in land-based facilities comparable with the open sea culture seaweeds. These findings are significant to provide a baseline data and facilitate seaweed research area especially for high quality seaweed seedling production in the future.
format	Thesis
qualification_level	Master's degree
author	Wahidatul Husna Zuldin
author_facet	Wahidatul Husna Zuldin
author_sort	Wahidatul Husna Zuldin
title	The performance of seaweed kappaphycus alvarezii and kappaphycus striatum in tank culture system
title_short	The performance of seaweed kappaphycus alvarezii and kappaphycus striatum in tank culture system
title_full	The performance of seaweed kappaphycus alvarezii and kappaphycus striatum in tank culture system
title_fullStr	The performance of seaweed kappaphycus alvarezii and kappaphycus striatum in tank culture system
title_full_unstemmed	The performance of seaweed kappaphycus alvarezii and kappaphycus striatum in tank culture system
title_sort	performance of seaweed kappaphycus alvarezii and kappaphycus striatum in tank culture system
granting_institution	Universiti Malaysia Sabah
granting_department	Borneo Marine Research Institute
publishDate	2015
url	https://eprints.ums.edu.my/id/eprint/39153/1/24%20PAGES.pdf https://eprints.ums.edu.my/id/eprint/39153/2/FULLTEXT.pdf
_version_	1811770493888364544

The performance of seaweed kappaphycus alvarezii and kappaphycus striatum in tank culture system

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