Water Quality Of Shrimp Pond Water During Harvesting

Shrimp farming is an important source of revenue for Sarawak. Shrimp farms are usually located at the estuary utilizing brackish water for the growth of shrimps. Due to the excess fE~ed and feces accumulation over the culture period, pond water had to be drained and the pond bottom cleaned during ha...

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Main Authors: Ling, Teck Yee, Dunging, Buda, Nyanti, L., Norhadi, Ismail, Emang, Justin Jok Jau
Format: Working Paper
Language:English
Published: Universiti Malaysia Sarawak 2013
Subjects:
Online Access:http://ir.unimas.my/id/eprint/264/
http://ir.unimas.my/id/eprint/264/1/Water_Quality_of_Shrimp_Pond_Water_During_Harvesting.pdf
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author Ling, Teck Yee
Dunging, Buda
Nyanti, L.
Norhadi, Ismail
Emang, Justin Jok Jau
author_facet Ling, Teck Yee
Dunging, Buda
Nyanti, L.
Norhadi, Ismail
Emang, Justin Jok Jau
author_sort Ling, Teck Yee
building UNIMAS Institutional Repository
collection Online Access
description Shrimp farming is an important source of revenue for Sarawak. Shrimp farms are usually located at the estuary utilizing brackish water for the growth of shrimps. Due to the excess fE~ed and feces accumulation over the culture period, pond water had to be drained and the pond bottom cleaned during harvesting before the next cycle of culture could begin. It is important to study the quality of the pond water during discharge so that the effluent can be properly managed and nutrient recovered. This study was conducted in a commercial shrimp farm whereby water quality of the effluent was monitored in the outflow drain during harvesting. Results show that turbidity increased from 51 to 92 NTU during draining. Dissolved oxygen was below the minimum recommended for aquatic organism (S mg/L). Mean total ammonia-nitrogen exceeded 1 mg/L and ortho-phosphorus was 0.06 mg/L. The final portion of the effluent water was the highest in turbidity, nitrate-N, ammonia-nitrogen and ortho-phosphorus. It is recommended that nutrients in the effluent be recovered to avoid polluting the environment and replenish the depleting supply from natural source.
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institution Universiti Malaysia Sarawak
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spelling unimas-2642020-08-12T07:22:15Z http://ir.unimas.my/id/eprint/264/ Water Quality Of Shrimp Pond Water During Harvesting Ling, Teck Yee Dunging, Buda Nyanti, L. Norhadi, Ismail Emang, Justin Jok Jau AC Collections. Series. Collected works Shrimp farming is an important source of revenue for Sarawak. Shrimp farms are usually located at the estuary utilizing brackish water for the growth of shrimps. Due to the excess fE~ed and feces accumulation over the culture period, pond water had to be drained and the pond bottom cleaned during harvesting before the next cycle of culture could begin. It is important to study the quality of the pond water during discharge so that the effluent can be properly managed and nutrient recovered. This study was conducted in a commercial shrimp farm whereby water quality of the effluent was monitored in the outflow drain during harvesting. Results show that turbidity increased from 51 to 92 NTU during draining. Dissolved oxygen was below the minimum recommended for aquatic organism (S mg/L). Mean total ammonia-nitrogen exceeded 1 mg/L and ortho-phosphorus was 0.06 mg/L. The final portion of the effluent water was the highest in turbidity, nitrate-N, ammonia-nitrogen and ortho-phosphorus. It is recommended that nutrients in the effluent be recovered to avoid polluting the environment and replenish the depleting supply from natural source. Universiti Malaysia Sarawak 2013-12-05 Working Paper PeerReviewed text en http://ir.unimas.my/id/eprint/264/1/Water_Quality_of_Shrimp_Pond_Water_During_Harvesting.pdf Ling, Teck Yee and Dunging, Buda and Nyanti, L. and Norhadi, Ismail and Emang, Justin Jok Jau (2013) Water Quality Of Shrimp Pond Water During Harvesting. [Working Paper] (Submitted)
spellingShingle AC Collections. Series. Collected works
Ling, Teck Yee
Dunging, Buda
Nyanti, L.
Norhadi, Ismail
Emang, Justin Jok Jau
Water Quality Of Shrimp Pond Water During Harvesting
title Water Quality Of Shrimp Pond Water During Harvesting
title_full Water Quality Of Shrimp Pond Water During Harvesting
title_fullStr Water Quality Of Shrimp Pond Water During Harvesting
title_full_unstemmed Water Quality Of Shrimp Pond Water During Harvesting
title_short Water Quality Of Shrimp Pond Water During Harvesting
title_sort water quality of shrimp pond water during harvesting
topic AC Collections. Series. Collected works
url http://ir.unimas.my/id/eprint/264/
http://ir.unimas.my/id/eprint/264/1/Water_Quality_of_Shrimp_Pond_Water_During_Harvesting.pdf