Effect of stocking density and water depth on the growth and production of red seaweed, Gracilaria tenuistipitata in the Kuakata coast of Bangladesh
Seaweed aquaculture, the quickly growing global food production segment, provides plenty of options for mitigating and adapting to developed-world conditions. In Bangladesh, the rise of seaweed cultivation gives hope for increasing incomes in fishing villages. The effect of stocking density (1, 2, 3...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-04-01
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| Series: | Aquaculture Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352513423000480 |
| _version_ | 1797862116444602368 |
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| author | Md. Rahamat Ullah Md. Amirul Islam Abu Bakker Siddique Khan Aovijite Bosu Farhana Yasmin Md. Monjurul Hasan Md. Mohidul Islam Md. Anisur Rahman Yahia Mahmud |
| author_facet | Md. Rahamat Ullah Md. Amirul Islam Abu Bakker Siddique Khan Aovijite Bosu Farhana Yasmin Md. Monjurul Hasan Md. Mohidul Islam Md. Anisur Rahman Yahia Mahmud |
| author_sort | Md. Rahamat Ullah |
| collection | DOAJ |
| description | Seaweed aquaculture, the quickly growing global food production segment, provides plenty of options for mitigating and adapting to developed-world conditions. In Bangladesh, the rise of seaweed cultivation gives hope for increasing incomes in fishing villages. The effect of stocking density (1, 2, 3, and 4 Kg/m2) and water depth (surface, 0.5 m, and 1.0 m) on cultivating red seaweed, Gracilaria tenuistipitata, using the square raft (1 m × 1 m) method was evaluated on the Kuakata coast of Bangladesh from December 2021 to March 2022. The raft was made of bamboo, rope, and plastic containers. Hydrological parameters and other growth indicators were monitored fortnightly. Temperature (27.3–29.5 °C), transparency (53.8–57.3 cm), salinity (18.6–21.4), pH (7.4–7.9), and dissolved oxygen (5.7–6.2 mg/L) were all found to be adequate for seaweed farming, however, salinity was somewhat lower than the ideal range. The initial stocking density of 2 Kg/m2 with a culture period of 60 days was found to be the most suitable for G. tenuistipitata than other stocking densities in terms of daily growth rate (DGR). The maximum biomass yield (13.52 ± 2.04 Kg/m2) was observed at a stocking density of 4 Kg/m2, but no significant difference (p < 0.05) was detected among stocking densities of 2, 3, and 4 Kg/m2. Furthermore, as compared to the surface and 1.0 m water depth, the daily growth rate was significantly higher at a depth of 0.5 m. However, at a water depth of 0.5 m, there was a rising trend in biomass yield, after which it declined significantly (p < 0.05). Based on the findings, the current study suggests that cultivating G. tenuistipitata at a stocking density of 2 Kg/m2 at a water depth of 0.5 m can produce greater DGR and biomass production, which might provide monetary benefits to small farmers in Bangladesh's Kuakata coast, Bay of Bengal. |
| first_indexed | 2024-04-09T22:15:14Z |
| format | Article |
| id | doaj.art-905c0eb85b2d441b953c656f52e9f571 |
| institution | Directory Open Access Journal |
| issn | 2352-5134 |
| language | English |
| last_indexed | 2024-04-09T22:15:14Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Aquaculture Reports |
| spelling | doaj.art-905c0eb85b2d441b953c656f52e9f5712023-03-23T04:36:27ZengElsevierAquaculture Reports2352-51342023-04-0129101509Effect of stocking density and water depth on the growth and production of red seaweed, Gracilaria tenuistipitata in the Kuakata coast of BangladeshMd. Rahamat Ullah0Md. Amirul Islam1Abu Bakker Siddique Khan2Aovijite Bosu3Farhana Yasmin4Md. Monjurul Hasan5Md. Mohidul Islam6Md. Anisur Rahman7Yahia Mahmud8Bangladesh Fisheries Research Institute, Riverine Sub-Station, Khepupara, Patuakhali 8650, Bangladesh; Corresponding author.Bangladesh Fisheries Research Institute, Riverine Sub-Station, Khepupara, Patuakhali 8650, BangladeshBangladesh Fisheries Research Institute, Riverine Sub-Station, Khepupara, Patuakhali 8650, BangladeshBangladesh Fisheries Research Institute, Riverine Sub-Station, Khepupara, Patuakhali 8650, BangladeshBangladesh Fisheries Research Institute, Riverine Sub-Station, Khepupara, Patuakhali 8650, BangladeshBangladesh Fisheries Research Institute, Riverine Sub-Station, Khepupara, Patuakhali 8650, BangladeshBangladesh Fisheries Research Institute, Marine Fisheries and Technology Station, Cox’s Bazar 4700, BangladeshBangladesh Fisheries Research Institute, Mymensingh 2201, BangladeshBangladesh Fisheries Research Institute, Mymensingh 2201, BangladeshSeaweed aquaculture, the quickly growing global food production segment, provides plenty of options for mitigating and adapting to developed-world conditions. In Bangladesh, the rise of seaweed cultivation gives hope for increasing incomes in fishing villages. The effect of stocking density (1, 2, 3, and 4 Kg/m2) and water depth (surface, 0.5 m, and 1.0 m) on cultivating red seaweed, Gracilaria tenuistipitata, using the square raft (1 m × 1 m) method was evaluated on the Kuakata coast of Bangladesh from December 2021 to March 2022. The raft was made of bamboo, rope, and plastic containers. Hydrological parameters and other growth indicators were monitored fortnightly. Temperature (27.3–29.5 °C), transparency (53.8–57.3 cm), salinity (18.6–21.4), pH (7.4–7.9), and dissolved oxygen (5.7–6.2 mg/L) were all found to be adequate for seaweed farming, however, salinity was somewhat lower than the ideal range. The initial stocking density of 2 Kg/m2 with a culture period of 60 days was found to be the most suitable for G. tenuistipitata than other stocking densities in terms of daily growth rate (DGR). The maximum biomass yield (13.52 ± 2.04 Kg/m2) was observed at a stocking density of 4 Kg/m2, but no significant difference (p < 0.05) was detected among stocking densities of 2, 3, and 4 Kg/m2. Furthermore, as compared to the surface and 1.0 m water depth, the daily growth rate was significantly higher at a depth of 0.5 m. However, at a water depth of 0.5 m, there was a rising trend in biomass yield, after which it declined significantly (p < 0.05). Based on the findings, the current study suggests that cultivating G. tenuistipitata at a stocking density of 2 Kg/m2 at a water depth of 0.5 m can produce greater DGR and biomass production, which might provide monetary benefits to small farmers in Bangladesh's Kuakata coast, Bay of Bengal.http://www.sciencedirect.com/science/article/pii/S2352513423000480Gracilaria tenuistipitataKuakata coastStocking densityWater depth |
| spellingShingle | Md. Rahamat Ullah Md. Amirul Islam Abu Bakker Siddique Khan Aovijite Bosu Farhana Yasmin Md. Monjurul Hasan Md. Mohidul Islam Md. Anisur Rahman Yahia Mahmud Effect of stocking density and water depth on the growth and production of red seaweed, Gracilaria tenuistipitata in the Kuakata coast of Bangladesh Aquaculture Reports Gracilaria tenuistipitata Kuakata coast Stocking density Water depth |
| title | Effect of stocking density and water depth on the growth and production of red seaweed, Gracilaria tenuistipitata in the Kuakata coast of Bangladesh |
| title_full | Effect of stocking density and water depth on the growth and production of red seaweed, Gracilaria tenuistipitata in the Kuakata coast of Bangladesh |
| title_fullStr | Effect of stocking density and water depth on the growth and production of red seaweed, Gracilaria tenuistipitata in the Kuakata coast of Bangladesh |
| title_full_unstemmed | Effect of stocking density and water depth on the growth and production of red seaweed, Gracilaria tenuistipitata in the Kuakata coast of Bangladesh |
| title_short | Effect of stocking density and water depth on the growth and production of red seaweed, Gracilaria tenuistipitata in the Kuakata coast of Bangladesh |
| title_sort | effect of stocking density and water depth on the growth and production of red seaweed gracilaria tenuistipitata in the kuakata coast of bangladesh |
| topic | Gracilaria tenuistipitata Kuakata coast Stocking density Water depth |
| url | http://www.sciencedirect.com/science/article/pii/S2352513423000480 |
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