Shrimp yield in relation to the ecological parameters of an organic shrimp model in the Mekong Delta of Vietnam: a case study

Tran Tu Thi Kim, . and Nguyen Tho, . and Nguyen Chi Thi Hue, . Shrimp yield in relation to the ecological parameters of an organic shrimp model in the Mekong Delta of Vietnam: a case study. pp. 154-161. ISSN 2073-3720

This study was carried out to observe the shrimp yield and ecological parameters of the organic shrimp model certified by Naturland at the coastal Tam Giang commune Camau province Mekong delta of Vietnam. The sampling of pond water and sediment and the collection of shrimp yield data were conducted in 2015. The results showed that the ponds were shallow (68.81 3.40 cm) but the water and sediment were in general suitable for shrimp culture except in some cases when iron and oxygen levels were high. The total shrimp yield was low (355.4 kg.ha.year ) and the wild shrimp Penaeus indicus H. Milne Edwards 1837 Penaeus merguiensis de Man 1888 in de Man 1887-1888 Metapenaeus ensis (De Haan 1844 in De Haan 1833-1850) and Metapenaeus lysianassa (de Man 1888 in de Man 1887-1888) cultured together with Penaeus monodon Fabricius 1798 contributed significantly (55 ) to the total yield. Positive correlations between the total yield with pHH2O (P 0.05) and pHKCl (P 0.001) suggested that shrimp grew well in neutral or near-neutral pond bottom. Yield of wild shrimp and the total yield were positively correlated with the water depth (both at P 0.05). To improve pond conditions it is recommended that the water depth be increased to about 80“90 cm to avoid disturbance to the mangrove soil. In addition the water level should be higher than the forest floor and lime (CaO) should be applied to the pond sediment thatis deposited on the dikes after harvest.

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Abstract

This study was carried out to observe the shrimp yield and ecological parameters of the organic shrimp model certified by Naturland at the coastal Tam Giang commune Camau province Mekong delta of Vietnam. The sampling of pond water and sediment and the collection of shrimp yield data were conducted in 2015. The results showed that the ponds were shallow (68.81 3.40 cm) but the water and sediment were in general suitable for shrimp culture except in some cases when iron and oxygen levels were high. The total shrimp yield was low (355.4 kg.ha.year ) and the wild shrimp Penaeus indicus H. Milne Edwards 1837 Penaeus merguiensis de Man 1888 in de Man 1887-1888 Metapenaeus ensis (De Haan 1844 in De Haan 1833-1850) and Metapenaeus lysianassa (de Man 1888 in de Man 1887-1888) cultured together with Penaeus monodon Fabricius 1798 contributed significantly (55 ) to the total yield. Positive correlations between the total yield with pHH2O (P 0.05) and pHKCl (P 0.001) suggested that shrimp grew well in neutral or near-neutral pond bottom. Yield of wild shrimp and the total yield were positively correlated with the water depth (both at P 0.05). To improve pond conditions it is recommended that the water depth be increased to about 80“90 cm to avoid disturbance to the mangrove soil. In addition the water level should be higher than the forest floor and lime (CaO) should be applied to the pond sediment thatis deposited on the dikes after harvest.

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Item Type:	Article
AGROVOC Term:	Prawns and shrimps
AGROVOC Term:	Ecological control
AGROVOC Term:	Crustacean culture
AGROVOC Term:	Ponds
AGROVOC Term:	Water levels
AGROVOC Term:	Sediment
AGROVOC Term:	Soil physicochemical properties
AGROVOC Term:	Water quality
AGROVOC Term:	Yields
AGROVOC Term:	Growth
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8741

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