Interview with Cornelia Rosberg at Rosbergs Fisk – a RoundGoby project partner

28 May 2025

Annika Steele at SUBMARINER sat down for a chat with Cornelia Rosberg, the product manager at Rosbergs Fisk based in Österlen, south Sweden, to talk about working on the RoundGoby project, and whether Cornelia thinks there is a market for round goby fish in Sweden.

Technical details

Tell us a bit about Rosbergs Fisk and your role in the RoundGoby project

Cornelia Rosberg

Rosbergs Fisk is a family-owned wholesale and processing company that prepare and sell fresh fish to restaurants and customers. We mostly sell salmon, cod and herring but also flat fish. I mostly process and sell fish from our food truck directly to customers.

We decided to join the RoundGoby project after talking to Vesa Tschernij at Marine Centre Simrishamn (project coordinators), as we thought it would be an exiting opportunity to try something new.

Rosbergs Fisk is mainly active in Pilot 7 – developing new food products. We prepare whole round gobies into fillets and mince for chefs to create new round goby dishes. Until now, we have prepared round goby to different tasting events, such as the ones organised by Kalmar municipality. We have also provided round goby fillets to the high-end restaurant Vyn, here in Österlen, and to Grand Hotel in Stockholm for their test cooking and tasting event.

What are the most fun and most challenging aspects of being a RoundGoby project partner?

The most fun part is to go to different events and be part of new, innovative processes. It was fun to collaborate with high-end restaurants and find ways to prepare the round goby. Also, the round goby is a really high-quality fish that tastes good, Both my kids and I have tried fried round goby fillets and burgers and we love the taste and texture.

Although tasty, round goby is a really small fish and therefore difficult to prepare and to fillet. At the moment, we have to manually fillet the fish, which is very labour intensive. Because the fish is so small you also need prepare a lot of fillets to sell. The best scenario would be a machine that could fillet the fish, however the round gobies are too small for exisiting machines.

Do you see a future market for round goby in Sweden?

I hope to see more round goby on the market. At the moment, the manual filleting means that you end up with a very high price for a kilo of fish. So I see round goby being a dish in high-end restaurants rather than in public kitchens. Round goby has already caught the attention of some famous restauranteurs and perhaps the general public will also discover this tasty fish. Swedes have very set preferences and are unwilling to buy or try new fish species. Especially if the price is higher than what people usually pay for fish. Nonetheless, we have had a tasting event at our food truck where customers had the opportunity to taste round goby burgers, and we had almost only positive reviews.