Black cod used to be one of those fish we had to explain. These days, more people walk up to our market booth already knowing exactly what it is, and often exactly how much they want. We’ve watched demand grow substantially over the last few years, and it appears we’re seeing our own small piece of a much larger trend: Americans are developing a taste for black cod.
The timing is interesting. Alaska has experienced several unusually successful years for young black cod, meaning more of those fish survived and grew large enough to eventually become part of the commercial fishery. In Northern Southeast Alaska, 2016 produced the strongest group of young black cod to enter the population since 1979, followed by several other strong years. As those fish have matured, they’ve helped increase the available supply at roughly the same time domestic interest has been growing.
Despite the name, black cod isn’t actually cod at all. It’s sablefish, a remarkable deep-water North Pacific species that can live for many decades. Fisheries biologists determine their age by examining growth rings in tiny calcified inner-ear structures called otoliths, much like counting the rings of a tree. Fish over 40 years old are commonly found in commercial catches, and black cod approaching 100 years old have been documented in Alaska.
Researchers have also learned a tremendous amount by capturing black cod, attaching individually identifiable tags and releasing them back into the ocean. When a tagged fish is eventually caught again, scientists can compare where it was released with where it was recovered. Those studies have documented individual black cod traveling well over a thousand miles and help researchers better understand their movement, growth and population structure.
Black cod is also an extraordinarily rich fish. Its high natural oil content creates the silky, buttery texture its fans love, while also making it an exceptional source of heart-healthy omega-3 fatty acids. In fact, ASMI identifies black cod as having the highest levels of the long-chain omega-3s EPA and DHA among Alaska’s commercially harvested seafoods.
Of course, that same richness means black cod isn’t necessarily everybody’s fish. If you’re looking for something especially mild and lean, this probably isn’t it. Black cod is rich, oily and distinctive. Some people try it and decide it’s not for them; others try it and immediately seek out more. Sometimes the more we warn someone about how rich and distinctive it is, the more determined they become to try it.
With more black cod entering the fishery and more people interested in eating it, responsible management matters. Alaska scientists monitor the fish through longline surveys, biological sampling and extensive tagging programs, looking at abundance, age, growth, movement and the number of young fish entering the population. Harvest levels can then be adjusted as conditions change. The recent strong groups of younger fish are encouraging, while continued careful management is particularly important for a species capable of living nearly a century.
Maybe Americans are finally catching on to something longtime black cod fans have known all along. It’s a remarkably long-lived, far-traveling fish harvested from the deep waters of the North Pacific, and we’ve had a front-row seat as more people discover it for themselves.
If you’ve never tried black cod, come see us this Saturday at the Los Ranchos Growers Market and find out whether you’re a black cod person too. We’ll have a great selection of wild Alaska seafood, grass-finished beef, New Mexico pork, raw local honey and more, surrounded by all the late-summer abundance from our fellow growers and producers.
Stay Well Fed,
Brenna & Kenny









