Our investigation highlights how so-called 'trash fish' is caught by Thai trawlers operating - sometimes illegally - in foreign waters before being ground into fishmeal for use in farmed prawn - or shrimp - feed. As fishing stocks are depleted, local fishermen are negatively affected.
Thai trawler operators often hire Burmese migrant workers who sometimes suffer brutal exploitation and abuse whilst at sea for lengthy periods. The Thai prawn industry is the largest of its kind in the world and supplies prawns to European consumers.
More from the investigation:
Slavery behind our seafood Read Jim Wicken's special report on the exploitation of Burmese migrants working on Thai fishing trawlers
Blood Fish Read Andrew Wasley's report on why we should blacklist tropical shrimp from our shopping baskets
What's linking slavery to your dinner plate?
A shocking new film released by the Environmental Justice Foundation reveals how workers endure violence and incarceration for months - or even years - onboard ships which supply European consumers with fish.
News investigation Scandal of the 'tomato slaves' harvesting crop exported to UK
Across Italy an invisible army of migrant workers harvests tomatoes destined for our dinner plates. Paid poverty wages and living in squalor, medical charities have described conditions as 'hell'. Andrew Wasley reports from Basilicata, southern Italy
Special report Who is picking our food?
In a major investigation the Ecologist reports on the hidden stories behind those harvesting the fruit and vegetables - and other staples - we eat everyday, both in the UK and internationally
Special report PG Tips and Lipton tea hit by 'sexual harassment and poor conditions' claims
Unilever denies some female employees at its Rainforest Alliance-certified tea plantation in Kenya are subjected to sexual harassment. But Dutch research outfit SOMO paints a very different picture. Verity Largo and Andrew Wasley report
Special report Revealed: the bitter taste of Cambodia’s sugar boom
Sugar may seem innocuous enough, but sweet-toothed Western consumers could be fuelling conflict between poor farming communities and big business with every spoonful. Sam Campbell reports from Phnom Penh