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December 17, 2013

Singapore

Shrimp Pumps

 

This article by Alex Hing, Asia Aquaculture Sales Manager for In-Situ, Inc., appeared in the November/December issue of AquaCulture Asia Pacific.  The article discusses ways of harvesting and transferring shrimp.  Here are a couple of excerpts from it:

 

Submersible Impeller Pumps: These pumps use a hydraulically driven single or double vane impeller that is gentle on the stock being harvested.  The pumps are lowered into raceways, ponds or tanks, and when connected to a flexible hose, can pump shrimp over long distances with a vertical lift of about five meters.  A flexible hose allows for easy setup.  Adjustable speeds enable the delivery rate to be controlled.  Submersible impeller pumps are relatively inexpensive; however, they can be awkward because they must be submerged in the pond, tank or raceway.

 

Cart-Mounted Impeller Pumps: Widely used for finfish, these pumps are becoming a favorite with shrimp farmers.  Cart-mounted pumps with pneumatic tires move easily over variable terrain, and with a built-in priming system do not need to be lowered into the water.  Cart-mounted pumps are used to move or to deliver shrimp for grading, counting, dewatering and loading onto transport trucks.  Some models include remote controls and various power configurations to suit most operations.

 

Cart-mounted pumps offer simplified setup, easy maneuverability and self-priming.  Only one suction hose needs to be placed in the water.  A single vane impellor gently pushes shrimp to the discharge hose.  The shrimp remain in water at all times, which reduces stress and maintains good product quality.  Pumps may include variable speed control and quick-connect hose fittings.

 

One person can operate and move a cart-mounted pump that can harvest up to ten metric tons an hour.  Continuous harvesting increases production efficiency and minimizes damage to shrimp.  The only disadvantage may be the initial capital cost, which is offset by quicker harvests, improved yields of high-quality shrimp and reduced labor costs.

 

Information: Alex Hing, Asia Aquaculture Sales Manager, In-Situ Monitoring Asia, Pte., Ltd., Midview City Block 22, #02-78 Sin Ming Lane, Singapore 573960 (phone +65 6659 2896, fax +65 6659 2979, email ahing@in-situ.com, webpage www.in-situaquaculture.com).

 

Source: AQUA Culture AsiaPacific (Editor/Publisher, Zuridah Merican, email zuridah@aquaasiapac.com).  Shrimp Handling Methods.  Alex Hing.  Volume 9, Number 6, Page 18, November/December 2013.

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