Culture of the tropical brown seaweed Sargassum aquifolium: From hatchery to field out-planting
As part of the preparation for the mass cultivation of the brown seaweed, Sargassum aquifolium, the following were investigated in a replicated experiment: patterns on the early post-settlement stage of the germlings on three types of artificial substrates (i.e., clay, limestone, and nylon string),...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-03-01
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| Series: | Aquaculture Reports |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352513419302753 |
| _version_ | 1811328426595844096 |
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| author | Jesrelljane Aaron-Amper Danilo B. Largo Edlin Rene B. Handugan Jason L. Nini Kristell Maye A. Alingasa Samuel J. Gulayan |
| author_facet | Jesrelljane Aaron-Amper Danilo B. Largo Edlin Rene B. Handugan Jason L. Nini Kristell Maye A. Alingasa Samuel J. Gulayan |
| author_sort | Jesrelljane Aaron-Amper |
| collection | DOAJ |
| description | As part of the preparation for the mass cultivation of the brown seaweed, Sargassum aquifolium, the following were investigated in a replicated experiment: patterns on the early post-settlement stage of the germlings on three types of artificial substrates (i.e., clay, limestone, and nylon string), and growth and development of the hatchery-derived S. aquifolium juveniles out-planted in the sea. Our investigation during the early post-settlement stage demonstrated: 1) recruit density to be highest on nylon string followed by clay, then limestone throughout a one-week observation period, 2) survival rate of germlings to be highest on limestone, followed by clay, then nylon string at day 9, and 3) higher daily growth rate (DGR) of germlings on clay at day 14, 21, 35, and 49. Recruits on clay substrates were the first to reach young juvenile stage and were used in out-planting. Young juveniles demonstrated continuous increase in length until 42 days post out-planting with some fluctuations thereafter. Lateral branches started to decrease 7 days post out-planting and throughout the sampling days. Overall, clay substrate was found to be suitable for the attachment and cultivation of S. aquifolium. However, an optimal density and optimal site selection seemed to be required during hatchery cultivation and out-planting, respectively. This would also prevent infestation of epiphytic organisms and grazers, and accumulation of sediment which could hamper the growth and development of S. aquifolium. Keywords: Early algal settlement, Growth rate, Sargassum aquifolium, Seaweed cultivation, Tropical seaweed |
| first_indexed | 2024-04-13T15:25:49Z |
| format | Article |
| id | doaj.art-a7a7874ffce748e4853e3b571e369a19 |
| institution | Directory Open Access Journal |
| issn | 2352-5134 |
| language | English |
| last_indexed | 2024-04-13T15:25:49Z |
| publishDate | 2020-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Aquaculture Reports |
| spelling | doaj.art-a7a7874ffce748e4853e3b571e369a192022-12-22T02:41:31ZengElsevierAquaculture Reports2352-51342020-03-0116Culture of the tropical brown seaweed Sargassum aquifolium: From hatchery to field out-plantingJesrelljane Aaron-Amper0Danilo B. Largo1Edlin Rene B. Handugan2Jason L. Nini3Kristell Maye A. Alingasa4Samuel J. Gulayan5Department of Biology, University of San Carlos-Talamban Campus, Talamban, Cebu City 6000, Philippines; College of Fisheries and Marine Sciences, Bohol Island State University, Cogtong, Candijay, Bohol, 6312, Philippines; Corresponding author at: Department of Biology, University of San Carlos-Talamban Campus, Talamban, Cebu City 6000, Philippines.Department of Biology, University of San Carlos-Talamban Campus, Talamban, Cebu City 6000, Philippines; Research, Development, Extension and Publications Office, University of San Carlos-Talamban Campus, Talamban, Cebu City, 6000, PhilippinesCollege of Fisheries and Marine Sciences, Bohol Island State University, Cogtong, Candijay, Bohol, 6312, PhilippinesCollege of Fisheries and Marine Sciences, Bohol Island State University, Cogtong, Candijay, Bohol, 6312, PhilippinesCollege of Fisheries and Marine Sciences, Bohol Island State University, Cogtong, Candijay, Bohol, 6312, PhilippinesCollege of Fisheries and Marine Sciences, Bohol Island State University, Cogtong, Candijay, Bohol, 6312, PhilippinesAs part of the preparation for the mass cultivation of the brown seaweed, Sargassum aquifolium, the following were investigated in a replicated experiment: patterns on the early post-settlement stage of the germlings on three types of artificial substrates (i.e., clay, limestone, and nylon string), and growth and development of the hatchery-derived S. aquifolium juveniles out-planted in the sea. Our investigation during the early post-settlement stage demonstrated: 1) recruit density to be highest on nylon string followed by clay, then limestone throughout a one-week observation period, 2) survival rate of germlings to be highest on limestone, followed by clay, then nylon string at day 9, and 3) higher daily growth rate (DGR) of germlings on clay at day 14, 21, 35, and 49. Recruits on clay substrates were the first to reach young juvenile stage and were used in out-planting. Young juveniles demonstrated continuous increase in length until 42 days post out-planting with some fluctuations thereafter. Lateral branches started to decrease 7 days post out-planting and throughout the sampling days. Overall, clay substrate was found to be suitable for the attachment and cultivation of S. aquifolium. However, an optimal density and optimal site selection seemed to be required during hatchery cultivation and out-planting, respectively. This would also prevent infestation of epiphytic organisms and grazers, and accumulation of sediment which could hamper the growth and development of S. aquifolium. Keywords: Early algal settlement, Growth rate, Sargassum aquifolium, Seaweed cultivation, Tropical seaweedhttp://www.sciencedirect.com/science/article/pii/S2352513419302753 |
| spellingShingle | Jesrelljane Aaron-Amper Danilo B. Largo Edlin Rene B. Handugan Jason L. Nini Kristell Maye A. Alingasa Samuel J. Gulayan Culture of the tropical brown seaweed Sargassum aquifolium: From hatchery to field out-planting Aquaculture Reports |
| title | Culture of the tropical brown seaweed Sargassum aquifolium: From hatchery to field out-planting |
| title_full | Culture of the tropical brown seaweed Sargassum aquifolium: From hatchery to field out-planting |
| title_fullStr | Culture of the tropical brown seaweed Sargassum aquifolium: From hatchery to field out-planting |
| title_full_unstemmed | Culture of the tropical brown seaweed Sargassum aquifolium: From hatchery to field out-planting |
| title_short | Culture of the tropical brown seaweed Sargassum aquifolium: From hatchery to field out-planting |
| title_sort | culture of the tropical brown seaweed sargassum aquifolium from hatchery to field out planting |
| url | http://www.sciencedirect.com/science/article/pii/S2352513419302753 |
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