John Dory

John Dories are unique-looking fish that prefer the warmer temperatures of tropical oceans around the world, excluding the Americas (eastern Pacific and western Atlantic Oceans). A few theories exist about the origin of the name “John Dory,” but there is no real evidence about the name’s true meaning.

Their wide bodies are shaped like an oval, but when viewed from the front or back, they vanish because they’re so thin. This helps when predators attack because changing sizes in a split second will confuse them.

They have a dark spot on either side of their bodies that also helps to confuse predators because to them, it looks like an eye.

Classification and Scientific Name            

John Dory’s scientific name is Zeus faber, and they form part of the class Actinopterygii. Members of this class have fins supported by rays of dermal bone instead of cartilage.

In addition, they belong to the family Zeidae, whose members are usually flat, with deep bodies, large heads, protruding mouths, and long fins.

Their common name, John Dory, is thought to come from the French language “Jaune doré,” which means “golden yellow,” and corresponds well with their coloring. However, this has never been proven.

Three Different Types of Dory Fish

There are several types of Dory scattered around the world, which include:

• King Dory (Cyttus traversi)
• Silver Dory (Cyttus australis)
• Mirror Dory (Zenopsis nebulosa)

How to Identify a John Dory: Appearance and Description

The John Dory is a funny-looking fish because, from the sides, it is oval-shaped and has a broad body, but when the dory turns to the side, it almost disappears because it is laterally compressed. They are silvery-yellow with horizontal lines starting at the head and extending down to the tail. However, their most prominent feature is the black dots on either side of their body. In addition, they have large eyes and a protruding mouth.

Their spine consists of big, strong thorns that look similar to a rooster’s crest, which is why they are called roosterfish in some parts of the globe, but it is not an official name and causes confusion because there is another species with the same name.

Their body is covered with rough, spiny scales, and the rays of the anal and dorsal fins have strong spines at the base that connect them to the body. Interestingly, John Dories have 2 dorsal fins, unlike most fish, which only have one. In addition, as they age, they develop long filaments at the ends of their dorsal fins.

Their eyes are very large and typically have a yellowish or silvery appearance, which helps them spot prey in dim light. They are big fish that reach lengths of 2 feet and can weigh a whopping 12 pounds!

John Dory Population and Conservation Status

There is not much information about the John Dory’s current conservation status, but it’s not as heavily fished as other species in the same environment. However, they are gaining popularity because of their sweet and delicious meat and are targeted explicitly by bottom trawling, which is extremely destructive to their habitat.

Predators, Prey, and Threats

John Dory’s biggest threat is overfishing. While it’s not as bad now, they are gaining popularity every day, which could seriously affect their numbers and habitat.

What Does John Dory Eat?

John Dories have an extensive diet which includes a wide variety of fish, especially if they are juveniles. Some of its preferred species are:

• Sardines
• Anchovies
• Cuttlefish

Their hunting technique involves stalking and ambushing prey, using their laterally compressed bodies to approach stealthily before rapidly extending their jaws to suck in prey.

What Eats John Dory?

John Dories need to steer clear of predators like:

• Sharks
• Large Bony Fish
• Dolphins

Reproduction and Lifespan

The John Dory takes a while to sexually mature and only reaches adulthood at 3 or 4 years old. This species is oviparous, which means the female releases her eggs into the ocean, and the males swim over and fertilize the eggs with their sperm. During this process, John Dories sometimes have increased appetites and become greedy and territorial over food.

The egg release and fertilization occur in open water, where the eggs and larvae are pelagic and drift with the currents until they develop. Reproduction occurs in the summer; however, species in warmer waters can start a little earlier in the spring.

John Dory may move to different areas as they grow, but detailed migration patterns by age are not well documented. John dories can live up to 15 years of age; typically, females live longer than males.

John Dory in Fishing and Cooking

There is not much information about the sustainability of the species, but bottom trawlers are targeting John Dories now. However, there are still no rules in place to protect them. The locations where they are most frequently caught are the United Kingdom, Australia, and New Zealand.

Fishing

The only regulation about fishing for John Dories is that fishing is not permitted during their breeding season from June to August. That’s just as well because they don’t taste as good when reproducing; it makes the taste and texture of their meat unpleasant.

Cooking

John Dories were overlooked by fishermen because of their ugly appearance, and they went unnoticed for decades. People prefer fish like sturgeons, hake, snappers, and sardines, but little did they know how delicious John Dory is.

John Dories are now infamous with their soft, white, meaty flesh that falls apart to the touch and is deliciously sweet. When purchasing John Dory, it’s better to purchase fillets than the whole fish, because their head accounts for most of their body weight, and unless you make stock from it, it’s a waste of money.

There are many ways to cook John Dory; it can be baked whole, pan-fried, steamed, grilled, roasted, or poached. However, it’s easy to overcook, like most fish, so it’s best to keep the skin on during cooking to protect the meat and keep it moist.

If you are not an avid fish filletter, don’t buy a whole John Dory. It takes a seasoned fillitter to maneuver the knife between the dories’ unusual bone structure that is similar to other flatfish species. Alternatively, you can always ask your fishmonger to do it for you.

Ingredients that Pair with John Dory

Because John Dorie’s have succulent and sweet meat, it pairs well with an array of ingredients. Some of these ingredients include:

• Lemon juice
• Fresh mixed herbs
• Garlic
• Butter

It’s also a great fish to use in seafood stews or Paella paired with clams or mussels.