Buyers comparing a cold-water crustacean offer against a warm-water farmed shrimp offer on price per kilo alone are comparing two different products. This guide explains what the water temperature actually does to the animal, and which of those differences you can verify on paper before you buy.
The Humboldt Current in one paragraph
The Humboldt is a cold, nutrient-rich eastern boundary current running north along the Pacific coast of South America. Deep water rises to the surface along the coast, bringing nutrients with it, and the resulting primary production supports one of the most productive fishery systems in the world. Our fleet and plant sit on this coast at Coquimbo, Chile, and the crustaceans we handle — red and yellow langostino, nylon shrimp (Heterocarpus reedi) and gamba — are all wild-caught from it.
Four differences that show up in the finished product
Texture. Cold-water crustaceans grow slowly. Slower growth generally produces denser muscle and a firmer bite than fast-grown warm-water aquaculture shrimp of comparable size. Chefs and product developers usually notice this before they notice anything else.
Colour. The orange-red of a cooked cold-water crustacean comes from astaxanthin, a carotenoid the animal accumulates through its diet. In wild cold-water species the pigment is dietary and present at levels that make the shells a commercially useful raw material in their own right — which is the basis of our crustacean meal line and the subject of a separate guide.
Size profile. Wild populations are not size-selected the way a pond harvest is. A wild lot has a natural size distribution, so grading is a sorting operation against a landed population rather than a harvest decision. This is why wild crustacean specs carry tolerances where farmed shrimp specs carry counts.
Inputs. Wild capture involves no feed, no pond, and no therapeutic inputs. For buyers whose customers ask antibiotic-residue questions, this changes the shape of the conversation — but it does not remove the testing obligation, and destination microbiological and contaminant limits still apply to every lot.
| Cold-water wild crustacean | Warm-water farmed shrimp | |
|---|---|---|
| Growth | Slow, in cold water | Fast, in managed ponds |
| Size control | Graded from a wild distribution | Set at harvest |
| Pigment | Dietary astaxanthin | Feed-supplemented |
| Feed inputs | None | Formulated feed |
| Volume predictability | Season and quota driven | Cycle driven |
| Primary sustainability proof | Fishery certification | Farm certification |
What you can actually verify
Origin claims about cold-water sourcing are easy to make and, unusually for seafood, reasonably easy to check. Three documents carry most of the weight:
- The fishery certificate. A certified fishery is named, scoped to a species and an FAO area, and listed in a public register. Ours covers the Chilean squat lobster and nylon shrimp trawl fishery in FAO Area 87 — the Southeast Pacific.
- The chain-of-custody certificate. Separate from the fishery certificate and held by the business that handles the product. Without it, certified material cannot legitimately be sold on with the claim attached.
- The food-safety certification of the plant. A GFSI-recognised scheme certificate — in our case FSSC 22000 — with a scope line that actually names crustacean processing rather than a generic food category.
The scope line is the part buyers skip and auditors do not. A certificate whose scope does not cover the product you are buying is not evidence about that product.
Where each of our species fits
- Langostino — squat lobster in cooked and raw shell-on and peeled tail meat. Highest-visibility presentation formats.
- Nylon shrimp — a deep-water species with a distinct texture and a long, slender body. Covered in detail in the nylon shrimp buyer's guide.
- Gamba — manually handled and IQF frozen, shell-on or peeled on request.
- Crustacean meal — flash-dried from the shells of the three species above, for aquaculture and animal nutrition.
Practical advice when switching a programme
Do not run the first trial on a cost-per-kilo comparison. Run it on cost per finished portion, with the yield of your own process applied to both products, and with a sensory panel that includes the people who will field the customer complaints. Cold-water product typically wins on texture and colour and loses on raw material cost per kilo; whether that is the right trade depends entirely on what you are making.
Products covered in this guide
Frequently asked
Are cold-water crustaceans always better than warm-water shrimp?
No — they are different. Cold-water species generally offer firmer texture and stronger natural colour, while warm-water farmed shrimp offer tighter size control and steadier volume. The right choice depends on whether the piece is visible in your finished product.
Does wild-caught mean antibiotic-free?
Wild capture involves no therapeutic inputs, but that does not remove your testing obligations. Destination microbiological and contaminant limits apply to every lot regardless of origin.
What is FAO Area 87?
The Southeast Pacific, which includes the Chilean coast. It is the area code you should expect to see on documentation for genuine Chilean cold-water crustacean material.
Can I get consistent monthly volume from a wild fishery?
Wild supply follows seasons and catch limits rather than a production calendar. Annual programmes are best built with call-off schedules agreed against production windows, which our export team confirms by species and format.
More insights: Red vs yellow langostino: what actually changes for the buyer · Nylon shrimp: a buyer's guide to Heterocarpus reedi · Astaxanthin and crustacean meal: what aquafeed buyers should ask