What Is Rawas Fish? And Is It Actually Salmon?

Rawas is a familiar name in Karachi seafood markets, particularly for customers looking for a larger, firm-fleshed fish that works well in substantial portions.

You may also see it described as Indian salmon.

That name creates a common misunderstanding.

Rawas is not Atlantic salmon.

The fish commonly identified as Rawas in Pakistani seafood references is fourfinger threadfin, Eleutheronema tetradactylum. It belongs to the threadfin family, not the salmon family.

So why is it called salmon?

The answer is that common seafood names often come from appearance, eating qualities or long-standing market usage. They do not necessarily indicate a biological relationship.

That distinction is worth knowing because the name on a fish counter can tell you how the fish is sold, but the scientific name tells you what the fish actually is.

What is Rawas?

Scientific name: Eleutheronema tetradactylum Common English name: Fourfinger threadfin Common Pakistani name: Rawas Other market description: Indian salmon

Eleutheronema tetradactylum is a threadfin found across the Indo-Pacific region and is recorded from Pakistani waters.

It is a substantial fish. FishBase records a maximum reported length of around 200 cm and a maximum published weight of around 145 kg, although those figures represent the upper end of the species’ documented size rather than what a customer should expect to see at a Karachi fish counter.

For a seafood buyer, the more useful point is that Rawas is a fish that can provide large, meaty portions, which is one reason it is well suited to steaks and thick cuts.

Is Rawas actually salmon?

No.

Despite the common name Indian salmon, Rawas is not a salmonid and is not the same type of fish as Atlantic salmon.

Atlantic salmon belongs to the family Salmonidae.

Rawas, Eleutheronema tetradactylum, is a threadfin.

The shared word “salmon” is therefore a common-name convention, not a scientific classification.

This is a good example of why seafood names need context. Two fish can share part of a common name while belonging to completely different groups of fish.

So when buying Rawas, think of it as:

Rawas = fourfinger threadfin

not:

Rawas = Atlantic salmon

What does Rawas look like?

Rawas has the elongated body you would expect from a sizeable predatory or actively swimming marine fish.

One of its defining characteristics is the presence of distinctive thread-like structures associated with the lower fins, which are characteristic of threadfins.

For an ordinary seafood buyer, however, detailed anatomical identification is less important than recognising the fish category and knowing what preparation you want.

A whole Rawas is very different from a trimmed steak or fillet, and the cut you purchase will have a major effect on the final cooking result.

What does Rawas taste like?

Rawas is generally chosen for its firm, substantial flesh.

That makes it appealing when you want a fish that feels more substantial on the plate rather than a very delicate fillet that flakes apart easily.

But “firm” does not mean that every Rawas portion will have exactly the same texture.

Size, cut, freshness, handling and cooking method all matter.

A thick steak cooked gently can remain moist and substantial. A thin piece exposed to excessive heat for too long can still become dry.

This is why fish quality and cooking technique should always be discussed together.

Is Rawas a fatty fish?

Rawas is often treated as a richer, more substantial fish than very lean white-fleshed species.

However, we would not attach one universal fat-content number to the market name Rawas without identifying the actual fish and using species-specific nutrition data.

The important culinary point is simpler:

Rawas has enough structural strength to work well with robust cooking methods and substantial cuts.

That is more useful to a home cook than pretending a single nutrition figure defines every Rawas sold in Karachi.

Does Rawas have bones?

Yes.

Rawas is not naturally boneless.

The number of bones a person encounters depends significantly on the preparation.

A whole fish contains its natural skeleton. A steak commonly retains part of the central bone. A fillet removes the backbone, but a fillet can still contain smaller pin bones unless those have been specifically removed.

So when someone says they want “boneless Rawas,” the important question is not whether Rawas itself is boneless.

It is:

Has this particular portion actually had its relevant bones removed?

That is a preparation standard, not a natural property of the fish.

Rawas steaks and slices

Rawas is particularly well suited to substantial cuts.

A steak is cut across the fish and usually retains part of the backbone. It gives you a thick portion with plenty of structure and is useful for grilling, pan cooking and other preparations where you want the fish to hold together.

A slice is a common retail term, but the exact shape and thickness can vary between sellers.

That means you should not assume that every “slice” is identical.

When ordering Rawas, ask about:

thickness

bone-in or boneless

skin-on or skinless

steak or another type of cut

That small amount of clarification can make a big difference once you start cooking.

What is Rawas best cooked as?

There is no single preparation that is universally best.

Rawas works particularly well when the recipe benefits from a firm, substantial portion.

Rawas for grilling

Grilling is one of the most natural uses for a thick Rawas portion.

A steak provides enough thickness and structure to sit on a hot grill without behaving like an extremely delicate fillet.

The key is controlling the heat.

Very high heat can brown the outside quickly while leaving the centre behind, while prolonged cooking can dry the fish.

Pat the surface dry before cooking, season or marinate it according to your recipe, and avoid moving the fish repeatedly before it has developed enough surface structure to release.

For charcoal cooking, keep an eye on flare-ups, particularly when the fish has been coated with an oily marinade.

Rawas for BBQ

Rawas is also a strong candidate for BBQ-style cooking.

Its firmness gives it an advantage when handling thicker portions over heat.

But BBQ is not one universal method. Direct charcoal grilling, cooking over a cooler section of the grill and skewer-style cooking all behave differently.

A thick Rawas steak may benefit from controlled direct heat, while an especially large portion may need more time away from the hottest section.

The goal is straightforward:

brown the outside without sacrificing moisture inside.

Rawas for pan searing

A thick Rawas steak can also work well in a pan.

The basic principle is to develop a good surface without overcooking the centre.

Dry the fish before placing it in the pan. Moisture on the surface interferes with browning.

Allow the first side to develop colour before trying to turn it. Moving the fish too early can cause the surface to tear.

Once the fish has developed enough structure, turn it and finish cooking until the centre is properly done.

The thicker the steak, the more important heat control becomes.

Rawas for curry

Rawas can be useful in curry because its firm flesh can retain its structure better than a very delicate fish.

This matters in South Asian cooking, where the fish may spend time surrounded by sauce and may be moved during preparation.

The key is not to treat firm fish as indestructible.

Once the fish is added, avoid unnecessary stirring. Instead, move the pot gently or spoon sauce over the pieces where appropriate.

Thicker portions are generally easier to manage in a curry than very thin pieces.

This is also why the right cut matters just as much as the fish itself.

Rawas for frying

Rawas can be fried, but its thicker cuts need a little more attention than thin fish slices.

A thick steak takes longer to heat through, so high heat can cause the surface to become heavily browned before the centre is done.

For smaller portions, moderate heat and appropriate thickness make the process easier to control.

A useful rule is:

Do not choose your heat level without considering the thickness of the fish.

Rawas for baking

Baking works well for larger portions and is particularly useful when you want to cook the fish with aromatics, vegetables or a sauce.

Again, thickness matters.

A thin fillet and a thick bone-in steak cannot sensibly share one universal cooking time.

Consider:

The fish is done when the centre has reached a safe cooking temperature, not simply when a predetermined number of minutes has passed.

What temperature should Rawas reach?

The FDA’s baseline recommendation for cooked seafood is 145°F / 63°C internally.

A food thermometer gives you the clearest way to check this.

Without a thermometer, cooked fish generally becomes opaque and separates easily with a fork. That is a useful visual indicator, but it is less precise than measuring the internal temperature.

For thicker Rawas steaks, a thermometer is particularly helpful because the centre can lag significantly behind the surface.

Does Rawas have a strong fishy smell?

Freshness should not be judged by the idea that some fish are simply supposed to smell “very fishy.”

Fresh seafood generally has a fresh, mild smell.

A strong sour, rancid or ammonia-like odour is a warning sign and should not simply be explained away as the natural smell of Rawas.

At the same time, smell is not a guarantee of safety. Harmful microorganisms or toxins are not necessarily detectable by the nose.

So freshness checks should always be considered alongside proper refrigeration and handling.

How should I store Rawas?

Treat Rawas like other raw seafood.

Keep it properly chilled at 40°F / 4.4°C or below.

USDA guidance recommends using raw fish and shellfish within approximately 1 to 2 days when refrigerated, or freezing it if you will not cook it within that period.

At home, keep the fish in a clean container or tray that can contain liquid and prevent contact with ready-to-eat foods.

If you know you will not cook the Rawas promptly, freezing is preferable to leaving it refrigerated for several extra days.

Can Rawas be frozen?

Yes.

Freezing is a practical way to preserve Rawas, particularly when you buy more than you plan to cook immediately.

Good packaging matters because air exposure can contribute to freezer burn and quality loss.

USDA guidance gives multi-month quality windows for frozen fish. Those timeframes are primarily about maintaining quality, not an abrupt point at which properly frozen fish becomes unsafe.

Over time, frozen fish can lose moisture and texture. The goal is therefore not simply to freeze the fish, but to package it well and use it within a sensible quality window.

How much Rawas should I buy?

Start with the portion you actually want to serve, then account for the cut.

A whole Rawas contains head, bones, skin and other parts that do not become edible flesh.

A steak contains bone but provides a more substantial usable portion.

A boneless fillet has a different yield again.

This is why there is no useful universal statement such as:

“One kilogram of Rawas feeds four people.”

The answer changes depending on whether that kilogram is whole fish, steaks or boneless fillets.

The useful concept is:

gross weight is not the same as edible weight.

Rawas vs other fish

Rawas occupies an interesting position in a Karachi seafood kitchen because it combines a substantial texture with flexibility.

Compared with very delicate fish, its firm flesh makes it easier to use for grilling, pan cooking and curry.

Compared with a small whole-fish option such as pomfret, a larger Rawas is more naturally suited to being divided into substantial steaks or portions.

Compared with salmon, the similarity is mainly in the market name “Indian salmon”, not taxonomy.

And compared with a very thin fillet, Rawas steaks are better suited to recipes where you want the fish to maintain its shape.

The right choice therefore depends less on which fish is “best” and more on what you are trying to cook.

Is Rawas suitable for a family meal?

Yes, particularly when purchased in portions appropriate to the number of people being served.

For families, the important considerations are:

portion size

cut

bone convenience

cooking method

individual preference

A boneless portion may be more convenient for some households, while a bone-in steak may be preferred by someone who wants a more traditional preparation.

For children, the practical issue of bones should be taken seriously. Avoid broad claims that a particular fish is simply “best for children.” Species-specific food-safety considerations, including mercury guidance, should be considered separately from convenience.

The important thing about the name Rawas

Rawas is a good example of why seafood names deserve a little explanation.

The fish commonly identified as Rawas in Pakistani seafood references is Eleutheronema tetradactylum, the fourfinger threadfin.

It may be called Indian salmon, but it is not Atlantic salmon.

That does not make the local name wrong. Common market names serve a different purpose from scientific taxonomy.

The useful distinction is simply this:

“Indian salmon” is a market/common name.

“Eleutheronema tetradactylum” is the scientific identity.

Once you understand that, there is no mystery left.

So, should you buy Rawas?

Choose Rawas when you want a firm, substantial fish that can handle grilling, BBQ, pan cooking and curry.

For grilling or BBQ, thick steaks are a practical choice.

For curry, substantial slices or steaks are easier to handle than very delicate portions.

For convenience, fillets offer easier portioning and serving.

And for the person standing at the Karachi fish counter wondering why a fish called “Indian salmon” is not actually salmon, the answer is simple:

Because seafood markets speak in common names, while biology speaks in scientific names.

Rawas is Eleutheronema tetradactylum, a fourfinger threadfin. It is a distinct fish in its own right, and there is no need to treat it as a substitute name for Atlantic salmon.

That is what makes knowing the fish worth it. Once you know what Rawas actually is, choosing the right cut and cooking method becomes much easier.