Authors: Ismail Saidi, Bill Johnston, Paul C. Southgate

 

Journal Title: Aquaculture Reports

 
ISSN: 2352-5134 (Print)
 
Publisher: Elsevier
 
Abstract
 
Artisanal half-pearl culture has been shown to provide livelihood and economic opportunities for coastal communities in Tanzania that depend directly on exploitation of marine resources. However, these pilot research studies have been supported by donor organisations and the economic feasibility of such development has not yet been assessed. Furthermore, there is little understanding of the costs required to establish pearl farms and the relative impacts of farm size on production, running costs, profitability and risks involved in production.
 
The aim of this study was to develop economic models for subsistence level half-pearl culture in Tanzania. Models were generated for various scenarios relating to farm size and products (i.e. half-pearls and juvenile oyster or ‘spat’ collection) and they give detail on infrastructure costs, operational costs and income generated for various levels of operation. We concluded that the most profitable model for community-based pearl farming is to culture at least 600 oysters for half-pearl production. However, for communities to be able to run a sustainable and profitable enterprise, development of a sustainable source of oysters is crucial. Farmers can also generate income from collection of juvenile oysters and their subsequent sale to pearl farmers, but this is less profitable than half-pearl farming and requires a longer operational period before profits are made. Like pearl farming, there were major benefits or economies of scale with the largest farms tested providing greatest profit and/or a shorter time required to reach profitability. Our results provide a valuable source of information for prospective pearl farmers, donors, funding bodies and other stakeholders, and valuable extension information supporting further development of pearl culture in Tanzania.
 

Photo: Half-pearls grown inside the shell of Pteria penguin by pearl farmers at Mafia Island, Tanzania. Pearls can be sold in the shell, with shell value based of the number of pearls it contains, or cut from the shell for individual sale. If cut from the shell, the remaining pearl shell can be utilised for mother-of-pearl handicraft and jewellery production. (credits: Ismail Saidi, Bill Johnston, Paul C. Southgate)

Article published under a Creative Commons license
 

Illustration Photo: Pearl Farming Boat (credits: vgm8383 / Flickr Attribution-NonCommercial 2.0 Generic (CC BY-NC 2.0))

Read more

Comments

No comments to display.

Related posts

EU's Call for Proposals: An empowering, inclusive Next Generation Internet

The objective is to support actions on smarter, open, trusted and personalised learning solutions to optimise digital learning and to allow learners to engage and interact with content and with peers.
Application Deadline in 5 months

Singapore to establish Additive Manufacturing Facility and Applications in Maritime Sector

The facility’s location also leverages PSA’s parts supplier base and facility operations to support just-in-time inventory. This move towards digitised inventories reduces the need to hold excess inventory, which lowers storage costs, while shortening turnaround time from weeks to days due to improved availability of spare parts. In the long run, PSA will expand the scope of these services to the wider maritime industry, including ship owners, to help build its business adjacencies.

EU's Call for Proposals: The AQUAEXCEL2020 twelfth call for access

The facilities available cover the entire range of production systems (cage, pond, recirculation, flowthrough, hatchery and disease challenge); environments (freshwater, marine, cold, temperate and warm water); scales (small, medium and industrial scale); fish species (salmonids, cold and warm water marine fish, freshwater fish and artemia); and fields of expertise (nutrition, physiology, health & welfare, genetics, engineering, monitoring & management technologies).
Application Deadline in a month

Environment and Big Data: Role in Smart Cities of India

This study identifies six environmental factors, which should be integrated in the development of smart cities. These environmental factors include indicators of landscape and geography, climate, atmospheric pollution, water resources, energy resources, and urban green space as a major component of the environment.

Corteva Agriscience and IRRI Ink Partnership to Develop Advanced Rice Technologies and Programs

The partnership seeks to improve the genetic outcomes of breeding programs, encourage sustainable rice cultivation, and develop new rice varieties which deliver higher yields and are more resilient against biotic and abiotic stresses.

Call for Applications: Communication projects which mitigate anthropogenic climate change

The Minor Foundation for Major Challenges (MFMC) is inviting applications from all over the world to fund communication projects which mitigate anthropogenic climate change.
Application Deadline in a month

EU's Call for Proposals: Digital technologies for improved performance in cognitive production plants

Proposals need to develop new technologies to realise cognitive production plants, with improved efficiency and sustainability, by use of smart and networked sensor technologies, intelligent handling and online evaluation of various forms of data streams as well as new methods for self-organizing processes and process chains.
Application Deadline in 4 months

Study reveals best use of wildflowers to benefit crops on farms

For the first time, a Cornell University study of strawberry crops on New York farms tested this theory and found that wildflower strips on farms added pollinators when the farm lay within a "Goldilocks zone," where 25 to 55 percent of the surrounding area contained natural lands.

EU's Call for Proposals: Reinforcing the EU agricultural knowledge base

Activities shall analyse and compare the approaches taken on their performance and impact for farmers/foresters as well as effectivity of the communication and information channels used for dissemination in countries and regions.
Application Deadline in 3 months

The Bali Fintech Agenda: A Blueprint for Successfully Harnessing Fintech’s Opportunities

In response to the Bali Fintech Agenda, the World Bank will focus on using fintech to deepen financial markets, enhance responsible access to financial services, and improve cross-border payments and remittance transfer systems.