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RESEARCH
AND
RESOURCES

Research & Resources

 

Below is an overview of our research, as well as selected reports and papers that we find particularly helpful. Also included are resources for those interested in learning more about fish welfare and advocacy.

 

We welcome questions and feedback. To do this, please contact us.


Shorter pieces can be found on our blog.

 

 

OUR RESEARCH

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Fish Welfare is a topic gaining global recognition. While fish are at the center of this, the value of improving fish welfare extends far beyond the fish themselves. This report can help equip all stakeholders in fish welfare with the relevant knowledge to best address fish welfare.

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This report is a guest contribution and summarizes the current knowledge on the various methods used to farm finfish and some important ways these practices create both environmental harms and risks. 

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The Philippines has the seventh-largest aquaculture production in the world. A 3-month scoping study was initiated by Fish Welfare Initiative to collect data on the current culture systems in the Philippines and, from these findings, assess the welfare status of farmed fishes. 

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China is the leading producer, exporter, and consumer of aquaculture products globally; it is also well-positioned to be the global leader in fish welfare. This report discusses fish welfare in China, and identifies avenues forward.

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India is the second largest producer of finfish in the world. Combining FAO and industry data, as well as the findings from our farm visits, this report analyzes the current state and future potential for fish welfare in Indian aquaculture.

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Fish production in Asia is growing fast and this adds a wide range of welfare problems. Tapping into a dynamic industry, now is an important time to explore high leverage opportunities for fish welfare work. 

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To better understand the growing fish welfare advocacy movement, Fish Welfare Initiative ran a survey of 52 existing animal protection organizations selected due to their current work on fish issues or their intention to do so in the future.

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To properly understand what it means to bring positive welfare to fish, we must first understand what we refer to when we say “welfare.” This report considers the working definition of welfare that Fish Welfare Initiative uses in its operations.

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Salmon may be the most valuable fish in the world, but despite a steady improvement in standards, most farmed salmon still do not have "a life worth living". This guest report discusses why.

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Different fish species have dramatically different welfare needs. This report proposes a prioritization process for identifying the species most promising to work with, and provides some tentative conclusions amongst species commonly farmed in Asia.

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In this report, we outline the various fish aquaculture systems used in Vietnam and assess the potential for work in Vietnam to promote higher fish welfare.

See a list of our unpublished research and ongoing research here.

 

SELECTED EXTERNAL RESEARCH

Farmed Fish Overview Reports

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This report covers considerations relevant to determining appropriate indicators of farmed fish welfare. It also discusses potential reforms to improve the welfare of farmed fishes. 

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Briefing that covers health problems and disease, handling, stocking density, breeding methods, genetic selection and genetic engineering and farming of new fish species.

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This report reviews the scientific data that allows us to interpret the effects of disease, handling, transport, food deprivation, and slaughter technique on fish welfare.

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Aquaculture practices and production—including handling, grading, transport, genetic manipulation, aggression from conspecifics, predation, physiological stress, and inhumane slaughter—compromise the welfare of fish.

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This report provides an overview of the extent to which fish welfare might be impacted within the aquaculture industry, by describing the main processes of fish farming and their associated welfare implications.

Wild-Caught Fish Overview Reports

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Policy briefings and recommendations for wild capture fisheries to reduce the suffering and stress of fishes. Examples from this briefing include recommendations to use available technologies to minimize handling, speed up the time from capture to slaughter, and reduce overcrowding in nets. 

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This report details slaughter practices in the UK and the steps that can be taken to ensure slaughter is as humane as possible.

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Wild capture fisheries operate far out of sight and little attention is paid to the welfare of the animals harvested. This report suggests changes in order to reduce stress after capture, minimize handling, and avoid injury and asphyxiation. 

Other Selected Research

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Unnaturally high juvenile mortality and poor reporting in aquaculture hatcheries are among the main findings of Dyrevernalliansen and the Norwegian Veterinary Institute's project "Småfiskvel".

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This paper aims to merge what is already known about positive welfare with the existing fish behavior literature to develop a plan of action for fish welfare research that will ultimately contribute to the development of positive welfare standards and assessment strategies for fish. 

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The effects of domestication on welfare of farmed fishes are complex to study because fish differ from livestock in genetics, physiology and behaviour, and experience different sensory worlds. The implementation of humane farming systems should integrate industry, science and ethics in an open dialogue in order to produce relevant results.

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There is a growing body of scientific evidence demonstrating that fish are sentient animals – capable of effective states of pain, fear and psychological stress and examples of impressive cognitive abilities and complex social behaviours are widespread. We therefore have a moral obligation to protect their welfare

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This report shines a spotlight on the environmental and social impacts of reduction fisheries, i.e. the use of wild-caught fish in fishmeal and fish oil (FMFO) to feed farmed fish. 

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Octopus farming is in an experimental phase and supported by various countries. This report argues that it is unethical because of concerns about animal welfare as well as environmental impacts.

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This article is a part of a series of articles by Rethink Priorities about animals farmed for various purposes. The report addresses the welfare problems related to fish stocking.

 

OTHER RESOURCES

Websites

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Database on ethological knowledge on fish found in the wild and captivity, with a focus on farmed fish.

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General information on wild-caught and farmed fish welfare, as well as estimates of the number of fish caught and farmed.

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Reviews the conditions and management practices of different species. Primarily focused on sustainability and conservation.

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Infographics and overview on the use of wild-caught fish in fish meal.

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List of of various reports on welfare and slaughter, focusing on Atlantic Salmon, European Seabass, Gilthead Seabream, and Rainbow Trout.

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Chapter on the welfare guidelines of farmed fish welfare, produced by the World Organisation for Animal Health

Recommended Books

Recommended Conferences

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Fish welfare is a neglected topic, even though it affects billions of fish each year. This document summarizes some of the most important questions that could be answered by research.

Read more.