Fish Welfare Initiative Updates

We at FWI recently published the following on our work in India:

1. Feed Fortification Study Results: We have concluded the last of our studies on feed fortification as a welfare intervention. Unfortunately, we found that there was not sufficient evidence to proceed with this intervention, and so are ceasing development on it for now.
2. Data Retraction: Due to at least one instance of data fabrication, we retracted the data from the last two years in the smaller of our two current operating regions.

We're hoping to have more positive updates to share in the next month!
 

FWI staffers Siva and Sai observing fishes during the final sampling event at a fish farm as part of the field-based effectiveness feed fortification study (Andhra Pradesh, India, August 2026). Such handling is extremely stressful for fishes, but we believe the potential to develop improvements that will improve the welfare of many more animals is worth the cost.

Fish Welfare Initiative Updates

Fish Welfare Initiative (FWI) recently published an open call for proposals aimed to improve farmed fish welfare in India. Academics, NGOs, industry, and other relevant individuals/groups both in India and abroad are invited to submit.

FWI staff taking water quality measurements at a farm in Andhra Pradesh, India.

Fish Welfare Initiative Updates

• Expansion and Hiring: We recently published plans for international scoping to guide our future expansion. We are also hiring a Global Growth Manager to lead this.

  Lice study: We published initial results from our "sentinel pole" lice study, which uses in-water poles to detect lice eggs before the farmers otherwise would. Lice are a common parasite affecting farmed fishes.

• Monitoring and Evaluation: We published the most recent M&E report from our farm program in India.

"Sentinel poles", which are used to detect lice eggs earlier than famers otherwise would, at our recent study.

Hey, fair point. To add to it, I expect we're only reaching <1% of India's fishes currently, and even those still have many other causes of suffering than those our program addresses.

However, we are still mostly expecting to scope other countries, as opposed to other regions in India or China. This is because our I expect our country teams will be somewhat self-contained, and I thus expansion in one to be limited by factors other than cross-org things like finances or leadership staff. For instance, right now we could have expanded much more in India, but have been holding off doing so as we refine our program and develop new ones.

Overall, I expect we will give each country's team the mandate to expand as much as they can (which will itself involve scoping new regions within a country). If we start to hit org-wide bottlenecks on that, we may need to reconsider our strategy.

 

Fish Welfare Initiative Updates

• Farm program RCT results: We recently completed a randomized controlled trial with 53 farms to understand to what extent our farm program, the Alliance for Responsible Aquaculture, is actually improving water quality on fish farms. The primary result is that our program appears to be having a strong positive effect.
• "Chill kill" project update: We posted an update on our chill kill project, which aims to develop a less inhumane way of slaughtering fishes.
• Pause of our policy work in India: We recently made the hard decision to pause our policy work in India. This is primarily to allow us to better focus on our farm work.

FWI staff Chaitanya, Dinesh, Mani, and Subrata preparing a chill kill trial during a live "harvest" in Andhra Pradesh, India.

Fish Welfare Initiative Updates

• Satellite-based water quality monitoring: After two years of extensive effort, we have failed to develop sufficiently accurate technology, and are thus pausing development on this intervention for now.
• Water quality ranges updates: We recently conducted a literature review of the ideal water quality ranges for Indian major carps, and made slight changes to our standards.
• Hiring: We are likely going to be hiring for an entry-level operations associate shortly. We think an EA-minded recent graduate could be a good fit for this role. We are favoring applicants in Asia, but wherever you are based if you think you could be a good fit we encourage you to reach out.

Caption: Our staff member Chandu (right) pictured with a farmer in Nellore, Andhra Pradesh, India. This farmer recently enrolled in our farm program, through which we will work with him to improve water quality and maintain a stocking density cap.

Fish Welfare Initiative Updates

We're hiring for a role that we think may be a great fit for some in the EA community: Director of Programs. This role will involve leading and scaling our programs, first in India and then abroad, to implement welfare improvements on thousands of farms. International applicants are welcome, though time living in India will be expected. Leadership experience required; experience running agricultural programs a huge plus.

FWI staff observing a "harvest", in which the fishes are pulled from the water and asphyxiated to death. We are working to reform these practices with our ongoing "chill kill" project (see update from last year—we should have another update in the coming months).

Fish Welfare Initiative Updates

We are hiring for a Welfare Assessment Manager! (Note Indian applicants only.) This role will be tasked with conducting welfare assessments for farmed fishes in various contexts.

Here are also some recent project updates:

• Feed fortification studies: We aim to develop an intervention based around our custom-formulated feed, which we hypothesize will improve water quality and nutrition. We are currently conducting two studies to assess this: a lab-based efficacy study (120 fishes) and a farm-based effectiveness study (12 farms). Both are progressing on track. See previous posts.
• Remote Sensing of Water Quality: We aimed to develop an intervention to remotely sense (via satellites) or predict water quality. Unfortunately, our in-house modeling did not yield any viable models. We are doing some final wrap-up work, but don't expect any breakthroughs. We expect to publish a full writeup of our results by the end of June. See previous posts.
• Improved Slaughter (Chill Kill): We aim to develop an intervention that replaces air asphyxiation with immersion in an ice bath at slaughter (still causes significant suffering, but less than the alternative). Our main bottlenecks remain a) logistical feasibility, and b) trader and consumer demand. To test the former, we are planning a trial of 1,000 fishes in the coming weeks—our largest yet. See previous posts.
• China Work: As part of our efforts to continue understanding and engaging the industry, we recently visited a rainbow trout farm and observed our first harvest event. We are also continuing to research interventions on various priority species, focusing on pond loach, sturgeon, and mandarin fishes.

Our staff Roshan and Gokul sampling fishes recently in the feed fortification pond-based study, in order to assess health and growth—proxies for welfare. Handling fishes in this way does cause them significant stress, but we believe the information is worth the costs (though these are tricky ethical tradeoffs that we sometimes struggle with).

Update: Thanks to the hard work of 7 unpaid interns, our website has been miraculously restored. The hacked page will be preserved here for posterity.

Fish Welfare Initiative Updates

We recently published two new datasets:

• Our farm program dataset, comprising of 10K+ (anonymized) data points on fish farms in Andhra Pradesh, India collected from 2021 to 2026.
• Our continuous water quality dataset, comprising of near continuous water quality data taken from farms in Andhra Pradesh, India over 2 months.

We also recently published our 2025 farm program M&E report.