Israel Yusuf, who is also known as "Dr Fish", is a 41-year-old fish farmer, farm reform advocate, agribusiness development consultant and aquaculture service provider in Nigeria.
Increased cultivation of sea sponges has been welcomed by the pharmaceutical and cosmetic industries, but sea sponge aquaculture has become a winning sustainable development strategy for women in Zanzibar.
How one man’s idea to help soldiers earn extra income and acquire valuable skills on retirement has evolved to create a national aquaculture training centre in Ghana
