



Chef Notes
Family-owned and operated in North Carolina, USA, Marshallberg Farm runs the largest Osetra sturgeon producer in North America using state-of-the-art recirculating aquaculture systems (RAS) at two indoor facilities: one on the central coast near Cape Lookout and another in the mountains near Lenoir. With wild Caspian sturgeon critically endangered due to overfishing and habitat loss, sustainable aquaculture like Marshallberg’s plays a vital role in conservation by providing premium caviar without pressuring wild populations. Sturgeon are raised hormone- and antibiotic-free, with over 95% water recycled and zero effluent discharge for minimal environmental impact. Ranked a “Best Choice” for sustainability by Monterey Bay Aquarium Seafood Watch, and hosts the Marine Aquaculture Research Center of North Carolina State University.
Marshallberg’s Classic Osetra caviar stands out with firm, glossy eggs full of buttery and nutty flavor. These dark to medium amber gems deliver perfect salinity and a clean, malossol finish. The roe offers luxurious texture and timeless elegance to steal the show at any occasion. Ideal for serving alone, spooning onto blinis, or as an adornment for seafood, it’s a must-have for novice and connoisseur alike.
Marshallberg’s sturgeon are fed a high-quality, USA-made diet specifically designed for Acipenser gueldenstaedtii, ensuring optimal health and flavor without hormones, antibiotics, or borax. This species-appropriate feed supports sustainable aquaculture in their RAS facilities, recycling over 95% of water for minimal environmental impact. As part of U.S.-regulated farming, it aligns with Monterey Bay Aquarium Seafood Watch’s “Best Choice” for conservation and purity.
Learn more about the farm
Marshallberg, Classic Osetra Caviar
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Chef Notes
Family-owned and operated in North Carolina, USA, Marshallberg Farm runs the largest Osetra sturgeon producer in North America using state-of-the-art recirculating aquaculture systems (RAS) at two indoor facilities: one on the central coast near Cape Lookout and another in the mountains near Lenoir. With wild Caspian sturgeon critically endangered due to overfishing and habitat loss, sustainable aquaculture like Marshallberg’s plays a vital role in conservation by providing premium caviar without pressuring wild populations. Sturgeon are raised hormone- and antibiotic-free, with over 95% water recycled and zero effluent discharge for minimal environmental impact. Ranked a “Best Choice” for sustainability by Monterey Bay Aquarium Seafood Watch, and hosts the Marine Aquaculture Research Center of North Carolina State University.
Marshallberg’s Classic Osetra caviar stands out with firm, glossy eggs full of buttery and nutty flavor. These dark to medium amber gems deliver perfect salinity and a clean, malossol finish. The roe offers luxurious texture and timeless elegance to steal the show at any occasion. Ideal for serving alone, spooning onto blinis, or as an adornment for seafood, it’s a must-have for novice and connoisseur alike.
Marshallberg’s sturgeon are fed a high-quality, USA-made diet specifically designed for Acipenser gueldenstaedtii, ensuring optimal health and flavor without hormones, antibiotics, or borax. This species-appropriate feed supports sustainable aquaculture in their RAS facilities, recycling over 95% of water for minimal environmental impact. As part of U.S.-regulated farming, it aligns with Monterey Bay Aquarium Seafood Watch’s “Best Choice” for conservation and purity.
Learn more about the farm

Marshallberg, Classic Osetra Caviar
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Delicious seafood that meets the Seatopia Standard™
Seatopia is the only seafood company in the world that lab tests to ensure your seafood is omega rich, mercury safe, free from detectable microplastics.
We lab test all our seafood products (a product is any piece of seafood that you purchase from Seatopia to enjoy at home) to ensure that it meets the Seatopia Standard. We believe that testing provides transparency, accountability, and most importantly piece of mind.




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FAQs
Please read our FAQs page to find out more.
Can I customize my box?
We are essentially a farmers market for artisanal aquaculture. In that sense, our Seatopia curated boxes are like a CSA box. We offer our curated boxes as a way to highlight what is seasonally available and introduce our members to new seafood and farm partners they might be interested in. So, they cannot be customized.
But we do offer custom boxes! Members can order a custom box through the a la cart section of our website. Subscription members can mix and match items in their portal and take advantage of member-only items and offers.
Do I have to subscribe to place an order?
No! But becoming a subscriber is the best way to support aquaculture farmers raising fish the right way.
Your subscription helps us with planning harvest timelines and scheduling ocean freight, helping us move the industry away from unsustainable practices of flying fresh fish around the world. Subscribers also have early access to preferred pricing, exclusive add-ons and limited time offers.
You will never be locked in to a subscription - you may change the order, the frequency or cancel anytime.
Do you offer discounts?
As a general rule, we do not offer discounts, aside from a small thank you for first time customers. We offer the same incentive if you find us through one of our affiliate friends or supporters. Both are only available to first time customers.
Rather than ask our members to search the internet for discounts and coupons, we always offer the lowest prices we can.
The best way to save is by becoming a monthly subscriber. Our subscription members receive a small price incentive for helping us to reliably and predictably support artisan, regenerative aquaculture.
What about antibiotics?
At Seatopia, we have a strict zero-tolerance policy for the use of preventative antibiotics in our feed, and our partner farms do not use preventative antibiotics.
In extreme cases where a veterinarian prescribes antibiotics for an individual animal's treatment, that animal is quarantined for a sufficient period, typically at least 30 days, to ensure no detectable levels of antibiotics remain before it can be reintegrated or harvested.
However, these instances where antibiotics are prescribed are rare, and typically only realistically possible in open-ocean aquaculture.
Many of our land-based (RAS) farms use zero antibiotics under any circumstances. More information about these and our other farms can be found on individual farm pages.
We are always able to answer any additional questions via email at nemo@seatopia.fish
What is a portion?
Many in our community are cooking for households or meal planning around specific protein requirements. For that reason, we sell our curated boxes in portions, not pieces.
A portion is typically 5.5-8oz for filets. For other items, like scallops or smoked trout, a portion can be considered 3-4oz, which is the recommended portion size per the professional chefs and nutritionists that we work with.
So, a 12 serving box will contain 4.5-5.5lbs of raw seafood.

