Freshwater fish

As the aquaculture industry expands, it needs every feed option – both conventional and alternative – at its disposal. But what steps can the sector take to bring sustainable feed ingredients online?

26-year-old Wilfred Agbi runs Weija Farms, a catfish hatchery and an “aquaculture evangelism” agency in Ghana that aims to train up young people who are looking to establish their own fish farms.

Indonesia’s aquafeed producers – be they industrial players or farmers who produce feed independently – are increasingly looking towards the use of local and sustainable alternatives to fish meal and soy.

Lowering water levels and poor communications from hydro-electric companies are combining to put pressure on tilapia farmers in the west of São Paulo state, Brazil.

A recent initiative brought together a group of 20 women from a variety of backgrounds, to return to work following breaks in their careers. Three of the participants reflect on why they took part and what they now plan to achieve.

Catfishes have surpassed tilapia in global aquaculture production and – helped in part by the sheer number of their species and their extensive geographical range – they are set to remain at the top table.

Chocolate mahseer, the state fish of Nagaland in northeast India, has become endangered due to overexploitation. However, a new aquaculture initiative may help to inspire its resurgence.

ThinkAqua, a new aquaculture non-profit, aims to promote innovation among small-scale fish and shrimp producers around the world, as Anton Immink, its CEO, explains.

Instead of treating and discarding wastewater from food processing, Mark Rottmann, CEO of iCell Aqua, is integrating it with RAS – bringing the industry closer to achieving zero-waste and fully circular protein production.*

The gene editing tool CRISPR is now being used to generate a range of traits in a variety of farmed aquatic species – including salmonids, crustaceans and carp – but there is still a way to go before it is likely to be financially and regulatorily viable in co…

Ismail Radwan is one of the key players in establishing Egypt as the unrivalled hub of African aquaculture – applying skills and knowledge he’s gleaned over 40 years from near and far.

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.

When it comes to fish vaccine doses, less is often more. Pharmaq’s Bjørn Brudeseth explains why micro-dose fish vaccines are a macro trend.*

Aquatic foods can address malnutrition, lower the environmental footprint of the food production system and provide livelihoods around the world, according to five newly-published papers.

Wanyama Pascal is manager of Bayrise Fish Farm on Lake Victoria, Kenya – a tilapia farm with the capacity to produce nearly 400 tonnes a year.

Ecotechnolgies, including constructed and reciprocating wetland systems, might offer economical alternatives to RAS, employing some of the same principles as recirc systems, but at the fraction of the cost.