Caviar Harvesting – Do They Kill The Fish?

There are a few reasons why caviar is known as one of the most expensive foods in the world, and one of the main ones is the difficulty of harvesting it. Caviar can only be harvested from female sturgeon, and specific ones at that.

How is caviar harvested? Caviar is harvested from dead fish. In order to harvest caviar, fishermen wait for mature female sturgeons to migrate upstream and then catch them before they lay eggs. To harvest caviar, the sturgeon is either killed or vivace method is used to extract caviar without killing the fish.

Can Caviar Be Harvested Without Killing the Fish?

Bear with us to find out how caviar farmers are ushering in a new era of harvesting this delicacy and whether or not it stands a chance of competing with the traditional method of caviar farming.

Can You Harvest Caviar Without Killing the Fish?

So, can caviar be harvested without killing the fish? Yes, caviar can be harvested without killing the fish that it’s been taken from. However, this is relatively rare and not economically viable.

The popularity of caviar has contributed to most of the world’s sturgeon species becoming endangered. Unfortunately, at the rate that we’re farming caviar right now, there won’t be enough sturgeon around to create the delicacy that we all enjoy so much.

This is because the farming process of caviar has historically required the fish to be killed because of the massive incision that has to be made to remove the sturgeon’s ovaries. Unfortunately, if a sturgeon were to expel the eggs naturally (spawning), the eggs lose their protective membrane that gives caviar its beloved texture.

However, caviar farmers in Russia have recently developed techniques to harvest the eggs without killing the fish. Here’s what we’ll take a look at in the following section:

  • Non-lethal caviar harvesting techniques
  • Can non-lethal techniques compete with traditional harvesting methods?

Interested to know more about caviar? Read also :

Are Caviar Eggs Alive?
Can Caviar Hatch?
Can Caviar Make You Sick?
Can I Eat Caviar Everyday?
Can I Take Caviar On The Plane?
Can You Eat Caviar On A Keto?

Non-Lethal Farming Methods

There are a few methods that are used to farm caviar without killing the fish that produce the eggs. The most well-known method is a Russian technique that is essentially a fish c-section.

This surgical removal method consists of making a much smaller incision than the type that is usually made. Specialized caviar farmers will then cut the eggs out of the sturgeon’s ovaries so that they can be used as culinary caviar. This allows the caviar to retain its protective membrane that would otherwise be shed during the ovulation process.

Keep in mind that this isn’t the only technique that is used to harvest caviar without killing the fish.

The next method that is used is an induced method of ovulation that makes the fish spawn the eggs. The eggs are then taken as soon as possible and chemically treated to rebuild the protective membrane around them. This restores the eggs’ texture, though connoisseurs argue that the texture and taste aren’t fully restored.

Finally, one of the most popular methods used to harvest caviar without killing the fish is through massaging them. This non-invasive method is much healthier for the fish, but it requires additional expertise on the part of the farmer, as the massage method is not easy to learn.

Can Non-Lethal Farming Hope to Compete?

A question that most people ask is whether or not non-lethal caviar farming can even match kill farming. The argument is that kill farming is a lot more economically viable because it is easier for people to learn how to kill a fish and harvest it than it is for them to learn the non-lethal methods.

This makes the job more labor-intensive and tightens the margins of sturgeon farms that are invested in cruelty-free caviar farming.

On the other hand, there is a growing demand for cruelty-free caviar, as the people who buy caviar like having a clean conscience, knowing that their food was produced without any death or suffering.

Another factor to consider is that sturgeon are growing more and more endangered by the year. If the market for caviar is to remain sustainable, then more farms will have to switch over to no-kill methods.

Since caviar production will get more expensive as sturgeon become less common, it’s in many farms’ best interest to lessen the number of fish that are being killed to produce their caviar.

Here’s a summary of the methods used to farm no-kill caviar:

Massage methodC-section methodOvulation and membrane reconstruction method
Takes skill on the part of the farmerRequires a recovery period for the fishEasier to master than the other two methods
Caviar retains its taste and qualityCaviar retains its taste and textureDiminishes the texture and flavor of the caviar

Just How Endangered Are Sturgeon Species?

So, are sturgeon endangered enough to make it worth devoting extra resources to running no-kill farms? According to the latest data, at least 85% of sturgeon species are somewhat endangered, and there are only 27 species of sturgeon in the world.

This fish species has existed for 100 million years, and they once shared the world with dinosaurs. Along with overfishing, the caviar industry has heavily contributed to the diminishing numbers of sturgeon in the water.


Even the beluga sturgeon, which is known for producing the most expensive caviar known to man, has recently been marked as an endangered species. This leads to caviar only getting more and more expensive, despite the methods used to farm it getting more efficient with time.

Further, over 60% of sturgeon species are critically endangered, meaning that they’re getting closer and closer to extinction by the day.

Is No-Kill Caviar Different Than Traditional Caviar?

Unlike frozen caviar, most no-kill caviar doesn’t differ considerably from caviar harvested from a dead fish.

However, in the case of the membrane reconstruction method, in which fish are allowed to ovulate, the texture of the caviar changes enough to put some people off of it. If you aren’t an experienced caviar eater, this difference may not even be noticeable to you, but caviar veterans will quickly notice the alteration.

On the other hand, caviar that has been farmed using the surgical c-section method is typically no different from caviar that has been harvested by killing the fish. 

Finally, caviar that has been cultivated using the massage method is no different from kill caviar, and some caviar eaters may even argue that it has a better texture. This is because the caviar doesn’t have to be separated from the ovary, which allows it to retain more of the membrane around it, retaining even more of the caviar’s signature crunch.