Evaluation of heavy metal contamination in the coastal aquaculture zone of the Red River Delta (Vietnam)

Le, Nhu D.; Hoang, Thi Thu Ha; Phung, Vu Phong; Nguyen, Thi Lien Huong; Rochelle‐Newall, Emma; Duong, Thi Thuy; Pham, Thi Mai Hương; Phung, Thi Xuan Binh; Dat, Nguyen Tien; Le, Phuong Thu; Pham, Le Anh; Nguyen, Thi Anh Huong; Le, Thi Phuong Quynh

doi:10.1016/j.chemosphere.2022.134952

Cited by 16 publications

(2 citation statements)

References 42 publications

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“…Specimens were collected once a month and continuously for 12 months from January 2022 to December 2022 at four locations in the coastal Mekong Delta, Vietnam (Figure 1 ). The temperature at the study site is approximately 27 o C, and slight fluctuation between the wet and dry seasons; Noticeably, precipitation measures varied enormously between the dry (20 mm) and wet seasons (400 mm) (Le et al, 2006). The salinity was 12.3-23.5% and varied regarding season but not site variables, while the pH was 7.6-7.9 and changed concerning site but not season variables (Dinh et al, 2021).…”

Section: Study Site and Fish Collectionmentioning

confidence: 94%

Feeding habit and intensity of Periophthalmus variabilis caught from some coastal provinces in the Mekong Delta, Vietnam

Hua,

Dinh,

Nguyen

2023

VIS

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Dusky-gilled mudskipper Periophthalmus variabilis, a member of the family Gobiidae, is a potential aquarium pet in the Mekong Delta (MD), Vietnam; however, data on its feeding habit and intensity has been limited. Therefore, this study aims to evaluate the relative gut length (RGL) and gastro-somatic index (GI) of Periophthalmus variabilis in order to determine the feeding habit and intensity of this mudskipper and its variation regarding sex, size, season, site, and their interaction. One thousand one hundred seventy mudskipper samples were collected monthly in four locations: Duyen Hai-Tra Vinh, Tran De-Soc Trang, Hoa Binh-Bac Lieu, and Dam Doi-Ca Mau from January 2022 to December 2022. The analysis showed that Periophthalmus variabilis was a carnivorous fish with an average RGL value of 0.52±0.01 SE (<1). In addition, the RGL of this species varied and depended on size, sampling site, season, and the interaction of both size and season with locations. The GI of the mudskipper was 4.27±0.29 SE, indicating that its feeding intensity belonged to the moderate category and varied with size and site but not sex, season, and interactions. These results supplement novel knowledge on its feeding habit and intensity, a basis for researching the aquaculture of Periophthalmus variabilis in MD.

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Section: Study Site and Fish Collectionmentioning

confidence: 94%

Feeding habit and intensity of Periophthalmus variabilis caught from some coastal provinces in the Mekong Delta, Vietnam

Hua,

Dinh,

Nguyen

2023

VIS

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“…In addition to nutrients, aquaculture systems can also be subjected to other pollutants such as antibiotics and heavy metals that could eventually affect the quality of the produce (Table 2). Le et al (2022) noted heavy metal pollution in the aquaculture coastal area and emphasized the need for good management practices if sustainable aquaculture is to persist in the coastal area. The use of antibiotics and chemicals in aquaculture can also have far-reaching effects on ecological food pyramids.…”

Section: Contamination In Water Sources For Aquaculture Productionmentioning

confidence: 99%

Water Quality Management in Aquaculture

Yusoff,

Umi,

Ramli

et al. 2024

Camb. prisms Water

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The aquaculture industry requires good water quality for its successful operation but produces wastes that can cause environmental deterioration and pose high risks to the sector. Adequate waste treatment and recycling are necessary to make aquaculture a sustainable and profitable industry and contribute to the circular economy. Polluted water sources, excess feeding, overstocking, use of antibiotics/chemicals, and harmful algal blooms (HABs) are major causes of water quality deterioration and low production in aquaculture systems. Discharges of untreated wastes would have serious impacts on the receiving water bodies, and eventually on the aquaculture industry itself.Possible solutions include technological innovations in environmentally friendly production systems, use of efficient processes in water quality management, and improved legislation and governance. Environmentally feasible aquaculture production technologies such as RAS (recycling aquaculture system), IMTA (integrated multitrophic aquaculture), and aquaponics including features of waste recycling are viable

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