Phytoplankton composition in intensive shrimp ponds in Bac Lieu province, Vietnam
Algal overgrowth in shrimp culture ponds can affect the quality of the aquatic environment, thereby adversely affecting the shrimp and causing economic losses. The objective of this study was to evaluate the variation in phytoplankton composition in intensive shrimp ponds in Bac Lieu province, Vietn...
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| Format: | Article |
| Language: | English |
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The Korean Society of Fisheries and Aquatic Science
2023-08-01
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| Series: | Fisheries and Aquatic Sciences |
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| Online Access: | http://www.e-fas.org/archive/view_article?doi=10.47853/FAS.2023.e40 |
| _version_ | 1797688668867002368 |
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| author | Nguyen Thi Kim Lien Phan Thi Cam Tu Vo Nam Son Huynh Truong Giang |
| author_facet | Nguyen Thi Kim Lien Phan Thi Cam Tu Vo Nam Son Huynh Truong Giang |
| author_sort | Nguyen Thi Kim Lien |
| collection | DOAJ |
| description | Algal overgrowth in shrimp culture ponds can affect the quality of the aquatic environment, thereby adversely affecting the shrimp and causing economic losses. The objective of this study was to evaluate the variation in phytoplankton composition in intensive shrimp ponds in Bac Lieu province, Vietnam. Phytoplankton samples were collected in three black tiger shrimp (Penaeus monodon) ponds and three whiteleg shrimp (Litopenaeus vannamei) ponds. The collected data were analyzed using SPSS and canonical correlation analysis softwares. In total, 75 species of phytoplankton were recorded in black tiger shrimp ponds and 64 species in whiteleg shrimp ponds. Diatoms had the highest species diversity with 29–30 species (39%–47%), followed by green algae with 9–19 species (14%–25%); species numbers of other phyla varied from 5–12 (8%–16%). The total number of phytoplankton species throughout the study varied from 34–50 species. Algal density was relatively high and ranged from 497,091–2,229,500 ind./L and 1,301,134–2,237,758 ind./L in black tiger shrimp and whiteleg shrimp ponds, respectively. The diatom density tended to increase during the final stage of the production cycle in black tiger shrimp ponds. Blue-green algae and dinoflagellates also increased in abundance at the end of the cycle, which can affect shrimp growth. Diatoms were significantly positively correlated with pH, salinity, total ammonia nitrogen, and nitrate (NO3–) concentrations (p < 0.05). Blue-green algae and dinoflagellates were positively correlated with salinity, phosphate (PO43–), and NO3–. Algal species diversity was lower in the whiteleg shrimp ponds than in the black tiger shrimp ponds. Several dominant algal genera were recorded in the shrimp ponds, including Nannochloropsis, Gyrosigma, Chaetoceros, Alexandrium, and Microcystis. The results of this study provide basic data for further investigations, and they contribute to the management of algae in brackish-water shrimp ponds. |
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| format | Article |
| id | doaj.art-40b9333ce22c4a939a1ae525aff0273d |
| institution | Directory Open Access Journal |
| issn | 2234-1757 |
| language | English |
| last_indexed | 2024-03-12T01:34:03Z |
| publishDate | 2023-08-01 |
| publisher | The Korean Society of Fisheries and Aquatic Science |
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| series | Fisheries and Aquatic Sciences |
| spelling | doaj.art-40b9333ce22c4a939a1ae525aff0273d2023-09-11T09:22:34ZengThe Korean Society of Fisheries and Aquatic ScienceFisheries and Aquatic Sciences2234-17572023-08-0126847048110.47853/FAS.2023.e40Phytoplankton composition in intensive shrimp ponds in Bac Lieu province, VietnamNguyen Thi Kim Lien0Phan Thi Cam Tu1Vo Nam Son2Huynh Truong Giang3College of Aquaculture and Fisheries, Can Tho University, Can Tho 94000, VietnamCollege of Aquaculture and Fisheries, Can Tho University, Can Tho 94000, VietnamCollege of Aquaculture and Fisheries, Can Tho University, Can Tho 94000, VietnamCollege of Aquaculture and Fisheries, Can Tho University, Can Tho 94000, VietnamAlgal overgrowth in shrimp culture ponds can affect the quality of the aquatic environment, thereby adversely affecting the shrimp and causing economic losses. The objective of this study was to evaluate the variation in phytoplankton composition in intensive shrimp ponds in Bac Lieu province, Vietnam. Phytoplankton samples were collected in three black tiger shrimp (Penaeus monodon) ponds and three whiteleg shrimp (Litopenaeus vannamei) ponds. The collected data were analyzed using SPSS and canonical correlation analysis softwares. In total, 75 species of phytoplankton were recorded in black tiger shrimp ponds and 64 species in whiteleg shrimp ponds. Diatoms had the highest species diversity with 29–30 species (39%–47%), followed by green algae with 9–19 species (14%–25%); species numbers of other phyla varied from 5–12 (8%–16%). The total number of phytoplankton species throughout the study varied from 34–50 species. Algal density was relatively high and ranged from 497,091–2,229,500 ind./L and 1,301,134–2,237,758 ind./L in black tiger shrimp and whiteleg shrimp ponds, respectively. The diatom density tended to increase during the final stage of the production cycle in black tiger shrimp ponds. Blue-green algae and dinoflagellates also increased in abundance at the end of the cycle, which can affect shrimp growth. Diatoms were significantly positively correlated with pH, salinity, total ammonia nitrogen, and nitrate (NO3–) concentrations (p < 0.05). Blue-green algae and dinoflagellates were positively correlated with salinity, phosphate (PO43–), and NO3–. Algal species diversity was lower in the whiteleg shrimp ponds than in the black tiger shrimp ponds. Several dominant algal genera were recorded in the shrimp ponds, including Nannochloropsis, Gyrosigma, Chaetoceros, Alexandrium, and Microcystis. The results of this study provide basic data for further investigations, and they contribute to the management of algae in brackish-water shrimp ponds. http://www.e-fas.org/archive/view_article?doi=10.47853/FAS.2023.e40AlgaeIntensive shrimp pondsDensitySpecies compositionBiodiversity indices |
| spellingShingle | Nguyen Thi Kim Lien Phan Thi Cam Tu Vo Nam Son Huynh Truong Giang Phytoplankton composition in intensive shrimp ponds in Bac Lieu province, Vietnam Fisheries and Aquatic Sciences Algae Intensive shrimp ponds Density Species composition Biodiversity indices |
| title | Phytoplankton composition in intensive shrimp ponds in Bac Lieu province, Vietnam |
| title_full | Phytoplankton composition in intensive shrimp ponds in Bac Lieu province, Vietnam |
| title_fullStr | Phytoplankton composition in intensive shrimp ponds in Bac Lieu province, Vietnam |
| title_full_unstemmed | Phytoplankton composition in intensive shrimp ponds in Bac Lieu province, Vietnam |
| title_short | Phytoplankton composition in intensive shrimp ponds in Bac Lieu province, Vietnam |
| title_sort | phytoplankton composition in intensive shrimp ponds in bac lieu province vietnam |
| topic | Algae Intensive shrimp ponds Density Species composition Biodiversity indices |
| url | http://www.e-fas.org/archive/view_article?doi=10.47853/FAS.2023.e40 |
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