Asian-Pacific Aquaculture 2024

July 2 - 5, 2024

Surabaya, Indonesia

A CASE STUDY OF THE SUSTAINABLE IN-POND RACEWAY SYSTEM (IPRS) PRINCIPLES IN TANZANIA

Sherif Sadek1.2* , Baraka Kalangahe2, Peter Mrope2, Farida Buzohera2,  and Hervé Lucien-Brun2,3

1 : Aquaculture Consultant Office , Cairo, Egypt

2:Tanlapia, Bagamoyo, Tanzania

3: Aquaculture & Qualité, France

*  E-mail: aco_egypt@yahoo.com

 



Tanlapia Ltd (“Tanlapia”) is a large-scale aquaculture project in Bagamoyo.  Since breaking ground in 2020, Tanlapia has grown rapidly , starting to produce fish in 2021  and  in 2024 is targeting to harvest around 100  metric tonnes (MT) of tilapia per month ,  making  today Tanlapia the  largest producers of Tilapia in the country.

 One of Tanlapia’s key advantages is its location based on a 600-hectare  fish farm in Kingani, Bagamoyo, on the floodplains of the perennial Ruvu River  around 30 km from the Indian ocean and less than two hours from downtown Dar-es-Salaam.

Tanlapia farm uses a hybrid system consisting of:

  •  Open semi-intensive ponds for low-tech reliable production of  fry  in hapa (12-18 fish/gm), followed by a first nursery stage to reach 3-5 gm/fish.
  •  Semi-intensive ponds with aeration for  a second nursery stage, growing, (3-5g to 25-50g).
  •  In-Pond Raceways System (IPRS) or semi-intensive ponds with aeration for grow-out from 25-50g to market size (usually 330g -350g), with a final production at harvest (50 to 65 kg.m3 ) during   200 days.

 IPRS is a state-of-the-art aquaculture technology. Fish are held in ‘cells’ which are cement-sided, mesh-ended cages within larger  earthen  ponds. Water is circulated through the cells and  earthen  pond with the help of electrically powered aerators. This simulates a river, allowing the areas outside of the cells to act like a large biofilter. This keeps the fish healthy and allows them to be closely monitored for any signs of disease or stress. It also keeps water quality stable, reduce  water consumption  and  feed loss, reducing environmental impact and optimizing operating cost  which is key for a successful farm. 

Main advantages of the IPRS to Tanlapia are to keep water quality stable in earthen ponds in case if salinity will increase seasonally and during high tide and or flood in Ruvu River. Meanwhile to be a reducing environmental impact and optimizing operating cost. In addition to decrease water consumption as be an ecofriendly aquaculture system . 

Without releasing water or waste into nearby waterways, IPRS technology has the potential to significantly outperform traditional ponds in terms of yields. With high yields and minimal environmental impact, IPRS is a more manageable and controllable approach. The system lowers risk, increases yields significantly, and lowers production costs per unit.

Tanlapia primary product is whole, gutted tilapia for the domestic market.  Processing is carried out  on site in Bagamoy o.  Tanlapia team  currently harvest four to five times a week and sell out the same day locally or to Dar es Salam area.

Tanlapia employ 24 full time employees, with a variety of skills and qualifications. Only one full time employee is not a Tanzanian national.  They also employ approximately 50 casual labourers hired from the local area, both men and women.  Women predominate in hatchery and plant processing tasks, but some are also in charge of grow-out operations.