Is Costco salmon farmed or wild?

Online Answer
Some supermarket chains, such as Whole Foods Market, only sell farmed salmon raised without antibiotics. Other stores, such as Costco, sell a variety of different types of farmed salmon, and with a "raised without antibiotics" option generally available.
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1. Imported, farmed shrimp can be contaminated with illicit antibiotics. Farmed shrimp from Central America and Asia can also pose a direct threat to diners.
Aquaculture, or the culturing of fish in a controlled environment, now accounts for 50 percent of the fish consumed globally, a fact that's putting tremendous strain on wild fish.
Farmed salmon is lighter and more pink, while wild has a deeper reddish-orange hue. Farmed fish will also a lot more fatty marbling in its flesh—those wavy white lines—since they aren't fighting against upstream currents like wild ones.
Because they are raised in high concentrations and have underdeveloped immune systems, disease risk is high. To try to prevent and control disease, which can result in major losses, farms use chemicals. Those chemicals end up in waterways, where they are destructive to local ecosystems—and in the shrimp itself.
farmed shrimp. Wild shrimp are caught in their natural habitats by fishermen. Farmed shrimp are raised on a shrimp farm. The name alone suggests to many consumers that wild products are more natural, and thus more healthy than their farmed counterpart.