Flatfish belongs to the member of order Pleuronectiformes of ray-finned demersal fishes also known as Heterosomata that might be classified sometimes as a suborder Perciformes. Flatfish could mask themselves by resembling the color of the seafloor. They become patchy stone-colored on pebbly bottoms and sand-colored on sandy bottoms. These fishes start their lives as normal swimming fish but get flattened bodies within some weeks. It is adapted totally to living on the seafloor.
A flatfish is a member of the ray-finned demersal fish order Pleuronectiformes, also called the Heterosomata, sometimes classified as a suborder of Perciformes. In many species, both eyes lie on one side of the head, one or the other migrating through or around the head during development. Some species face their left sides upward, some face their right sides upward, and others face either side upward.
Much important food fish are in this order, including the flounders, soles, turbot, plaice, and halibut. Some flatfish can camouflage themselves on the ocean floor.
Flatfish Quick Facts | |
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Name: | Flatfish |
Scientific Name: | Pleuronectiformes |
Colors | Changeable |
Shapes | Oval-shaped, flattened |
Flesh colors | White |
Calories | 109 Kcal./cup |
Major nutrients | Selenium (75.27%) Vitamin B-12 (69.17%) Lysine (59.27%) Isoleucine (57.30%) Tryptophan (56.82%) |
Health benefits | Loaded with protein, Lower calories, Low-fat content, Healthy cholesterol, Source of vitamins and minerals |
Some flatfish are fished commercially such as sole, flounder, plaice, turbot, and halibut. They swim sideways. It hides on an ocean floor resting for prey. It has the ability for dynamic camouflage that is under nervous control and could change in real-time. It has some features that suit its lifestyle. It has got both eyes on one side of the head meaning upper side; one or other migrates through or around the head during development. Some species face their left sides upward or some have their right sides upward and others face either side upward.
About 600 species of flatfish are found such as flattened, oval, and bony bodies which are found from tropical to cold waters. Some flatfish enter or live in freshwater permanently and most of the species live at moderate depths along the continental shelf. Species could vary from 4 inches to 7 ft. (10 cm to 2 m) long weighing 720 lb (325 kg).
They could be divided into three groups: the soles, families Soleidae, Cynoglossidae, and Achiridae; and the flounders, families Achiropsettidate, Citharidae, Bothidae, Pleuronectidae, Paralichthyidae, Scophthalmidae and Samaridae, and the spiny turbots, family Psettodidae.
- The Soles
American soles are several Atlantic or one Pacific species. It has small close-set eyes with small and twisted mouths having few to no teeth. It prefers warm and shallow water having a sandy or muddy bottom and is too small or bony for food. Solea is a European species of flatfish that measures 2-ft (61-cm) found from the Mediterranean to the North Sea is a valuable food fish being a source of fillet of sole.
- The Flounders
They are much larger fishes that include the halibut (Hippoglossus), fluke ( Paralichthys), the place (Pleuronectes), and the dab (Limanda). Flounder (smooth) are found in cold and shallow northern waters on muddy bottoms. Winter flounder (Pseudopleuronectes americanus) is a vital food or game fish that is taken in large numbers by trawlers. It migrates to deeper waters to breed in winter. It belongs to the Pleuronectidae, righteye flounder family. California halibut or California flounder (P. californicus) is the prized sport fish found in California that weighs up to 50 lb (23 kg). Usually flounders feed on worms, small bottom invertebrates, and crustaceans. American plaice is commonly found at depths from 20 to 100 fathoms on sandy or muddy bottoms feeding on sand dollars, sea urchins, and other bottom life and measures 30 in. (76.2 cm) and 14 lb (6.4 kg).
Halibuts are considered to be the largest flatfishes with great commercial importance. The Atlantic halibut (Hippoglossus hippoglossus) and the Pacific halibut (H. stenolepis) are similar having large mouths and sharp or strong teeth. Generally, the male is much smaller than the female.
Description
Flatfish has its irregularity characteristics having both eyes lying on the same side of the head in an adult fish. Usually, some families have their eyes on the right side of the body (dextral or right-eyed flatfish) and others have on the left (sinistral or left-eyed flatfish). Other distinguishable features are the presence of protrusible eyes, an extension of the dorsal fin onto the head, and adaptation to living in the seabed. The bodyside without eyes facing seabed is very pale or colorless usually. Generally, flatfishes are relied on their camouflage to avoid predators. Spiny turbots and flounders have well-developed teeth and consume smaller fish. Sometimes, it seeks prey in midwater, away from the bottom, and shows some extreme adaptations in comparison to other families. Soles are bottom dwellers and feed on invertebrates. It is more asymmetry and lacks teeth on one side of the jaw. Flatfishes measure 4.5 cm (1.8 in) in length weighing 2 g (0.071 oz).
Reproduction
They lay eggs that hatch into larvae resembling typical and symmetrical fish. Initially, they are elongated which develops into a more rounded form quickly. Typically, larvae have protective spines on the head, over gills, and in the pelvic or pectoral fins. It has swim bladder and does not dwell on the bottom, instead of dispersing from its hatching grounds as plankton. In the planktonic stage, length varies between various flatfishes but begins eventually to metamorphose into adult form. One of the eyes shifts across the top of the head or onto another side of the body leaving blind on one side. Larva loses its spines or swims bladder and sinks to the bottom laying its blindside on the underlying surface.
Nutritional value of Fish, flatfish (flounder and sole species), cooked, dry heat
Calories 109 Kcal. Calories from Fat 27.09 Kcal.
Proximity | Amount | % DV |
---|---|---|
Water | 103.01 g | N/D |
Energy | 109 Kcal | N/D |
Energy | 460 kJ | N/D |
Protein | 19.35 g | 38.70% |
Total Fat (lipid) | 3.01 g | 8.60% |
Ash | 1.89 g | N/D |
Minerals | Amount | % DV |
---|---|---|
Calcium, Ca | 32 mg | 3.20% |
Iron, Fe | 0.29 mg | 3.63% |
Magnesium, Mg | 28 mg | 6.67% |
Phosphorus, P | 392 mg | 56.00% |
Potassium, K | 250 mg | 5.32% |
Sodium, Na | 461 mg | 30.73% |
Zinc, Zn | 0.5 mg | 4.55% |
Copper, Cu | 0.029 mg | 3.22% |
Manganese, Mn | 0.022 mg | 0.96% |
Selenium, Se | 41.4 µg | 75.27% |
Vitamins | Amount | % DV |
---|---|---|
Water soluble Vitamins | ||
Vitamin B1 (Thiamin) | 0.033 mg | 2.75% |
Vitamin B2 (Riboflavin) | 0.032 mg | 2.46% |
Vitamin B3 (Niacin) | 1.623 mg | 10.14% |
Vitamin B5 (Pantothenic acid) | 0.288 mg | 5.76% |
Vitamin B6 (Pyridoxine) | 0.146 mg | 11.23% |
Vitamin B9 (Folate) | 8 µg | 2.00% |
Folate, food | 8 µg | N/D |
Folate, DEF | 8 µg | N/D |
Choline | 101.5 mg | 18.45% |
Vitamin B-12 (Cobalamine) | 1.66 µg | 69.17% |
Fat-soluble Vitamins | ||
Vitamin A, RAE | 15 µg | 2.14% |
Vitamin A, IU | 47 IU | N/D |
Retinol | 15 µg | N/D |
Vitamin E (alpha-tocopherol) | 0.98 mg | 6.53% |
Tocopherol, beta | 0.03 mg | N/D |
Tocopherol, gamma | 0.01 mg | N/D |
Tocopherol, delta | 0.41 mg | N/D |
Vitamin D (D2 + D3) | 4.4 µg | N/D |
Vitamin D3 (cholecalciferol) | 4.4 µg | N/D |
Vitamin D | 177 IU | N/D |
Vitamin K (phylloquinone) | 0.1 µg | 0.08% |
Lipids | Amount | % DV |
---|---|---|
Fatty acids, total saturated | 0.688 g | N/D |
capric acid 10:00 (decanoic acid) | 0.005 g | N/D |
Lauric acid (dodecanoic acid) 12:00 | 0.01 g | N/D |
Myristic acid 14:00(Tetradecanoic acid) | 0.135 g | N/D |
pentadecanoic acid (15:00) | 0.01 g | N/D |
Palmitic acid 16:00 (Hexadecanoic acid) | 0.439 g | N/D |
Margaric acid (heptadecanoic acid) 17:00 | 0.005 g | N/D |
Stearic acid 18:00 (Octadecanoic acid) | 0.083 g | N/D |
Arachidic acid 20:00 (Eicosanoic acid) | 0.001 g | N/D |
Lignoceric acid (tetracosanoic acid) 24:00 | 0.001 g | N/D |
Fatty acids, total monounsaturated | 0.834 g | N/D |
Palmitoleic acid 16:1 (hexadecenoic acid) | 0.141 g | N/D |
Heptadecenoic acid 17:1 | 0.042 g | N/D |
Oleic acid 18:1 (octadecenoic acid) | 0.558 g | N/D |
Gadoleic acid 20:1 (eicosenoic acid) | 0.093 g | N/D |
Erucic acid 22:1 (docosenoic acid) | 0.001 g | N/D |
Fatty acids, total polyunsaturated | 0.583 g | N/D |
Linoleic acid 18:2 (octadecadienoic acid) | 0.07 g | N/D |
Linolenic acid 18:3 (Octadecatrienoic acid) | 0.027 g | N/D |
18:04 | 0.019 g | N/D |
20:2 n-6 c,c | 0.008 g | N/D |
20:3 undifferentiated | 0.011 g | N/D |
20:4 undifferentiated | 0.023 g | N/D |
20:5 n-3 (EPA) | 0.213 g | N/D |
22:04 | 0.003 g | N/D |
22:5 n-3 (DPA) | 0.043 g | N/D |
22:6 n-3 (DHA) | 0.168 g | N/D |
Fatty acids, total trans | 0.018 g | N/D |
Cholesterol | 71 mg | N/D |
Amino acids | Amount | % DV |
---|---|---|
Tryptophan | 0.25 g | 56.82% |
Threonine | 0.913 g | 51.88% |
Isoleucine | 0.958 g | 57.30% |
Leucine | 1.695 g | 45.86% |
Lysine | 1.982 g | 59.27% |
Methionine | 0.711 g | N/D |
Cystine | 0.232 g | N/D |
Phenylalanine | 0.792 g | N/D |
Tyrosine | 0.747 g | N/D |
Valine | 1.016 g | 48.11% |
Arginine | 1.396 g | N/D |
Histidine | 0.475 g | 38.56% |
Alanine | 1.204 g | N/D |
Aspartic acid | 2.156 g | N/D |
Glutamic acid | 3.32 g | N/D |
Glycine | 0.998 g | N/D |
Proline | 0.761 g | N/D |
Serine | 0.904 g | N/D |
*Above mentioned Percent Daily Values (%DVs) are based on 2,000 calorie diet intake. Daily values (DVs) may be different depending upon your daily calorie needs. Mentioned values are recommended by the U.S. Department of Agriculture. They are not healthbenefitstimes.com recommendations. Calculations are based on average age of 19 to 50 years and weigh 194 lbs. Source: https://ndb.nal.usda.gov/
Health Benefits of Flatfish
Here are the health benefits discussed flatfish:
- Loaded with protein – It is considered to be a great source of protein. A cooked portion of 24 grams offers around 200 grams of protein. Men require a higher amount of protein regularly i.e. 56 grams of protein and women require around 46 grams of protein. One serving grants almost half of daily recommended protein needs. Protein is also required to maintain and repair tissue, muscles, and organs in the body. Flounder offers a great source of essential amino acids. Besides this, it has rich amounts of omega-3 fatty acids.
- Lower calories – A serving of 100 grams of the cooked portion is equal to 117 calories that makes it a low energy-dense food. It has lower calories in comparison to its weight. A diet with low energy-dense foods helps one to feel full on lower calories and makes it easier to manage weight.
- Low-fat content – Flounder fish has a low content of fat such as saturated fat. The fat found in food is considered to be a great source of calories that assist to absorb fat-soluble vitamins but too much fat in the diet increases the chances of heart associated problems.
- Healthy cholesterol – Besides having low fat or protein, it has also a low amount of saturated fat which is considered to be harmful fat for the body as it promotes blood cholesterol in the body. The promotion of blood cholesterol in the blood forms a blockage in the heart and limits the flow of blood to and out of the heart. It is recommended that less than 10 percent of calories should be derived from saturated fat.
- Source of vitamins and minerals – Flounder is a great source of vitamins such as magnesium, Vitamin B, and phosphorus. One requires vitamin B to convert food into energy. Vitamin B is essential for red blood cells production that contains hemoglobin. Red blood cells are essential for the flow of oxygen. Being magnesium a mineral, it assists in the production of energy, making protein, and aiding blood sugar or blood pressure control. However, phosphorus is required for healthy bones and teeth.
- Fetus health – Flounders are rich in omega 3 fatty acid which is essential for pregnant women at an early stage. It assists to develop the fetus’s heart, brain, and also other vital parts or functions of the body especially the nerves of the baby during pregnancy. It is required for kids at the earliest of age to promote their brain and nerve function.
- Lowers depression – Studies show that the consumption of flounders lowers the chances of depression. Research showed that people who consumed flounder reduces the chances of depression by 17 percent in comparison to those who did not consume. Flounders offer nutrients such as omega-3 fatty acids, vitamins, protein, and minerals which are related to lowering the chances of depression.
- Lowers the chances of dementia – Studies have shown that the consumption of fresh seafood such as flounder extends the function of the brain nerve as it promotes and normalizes the flow of blood to the brain. Studies have added that oily fish such as mackerel, salmon, flounder, and sardines helps to encounter Alzheimer’s disease.
- Combat diabetes – The consumption of fish is found to be helpful for diabetic patients. The consumption of flounders helps to counteract diabetes and also the chances of getting diabetes.
- Helpful for arthritis and inflammation – Flounder has ample Omega 3 fatty acids that provide anti-inflammatory properties for bone assisting to provide relief from arthritis and also prevent other diseases associated with inflammation such as heart diseases. Omega-3 found in flounders helps to reduce the level of unhealthy blood fats, raise healthy cholesterol, reduce the growth of arteries clogging, and also reduces blood pressure.
How to Eat
- Its lean flesh is pan-fried, grilled, deep-fried, and baked.
- Coat fillets in rye flour and sizzle for few minutes in browned butter.
- Serve it on buttered rye bread with remoulade and lemon.
- It could be accompanied by potatoes, pickled things such as raw lingonberry jam, and cucumber salad.
- Pair it with steamed vegetables.
Recipes
Ingredients
For the Byzantine spice mix
- 1 slice of nutmeg
- pinch coriander seeds
- 4 cloves
- 1cm/½in cinnamon stick
- pinch ground ginger
- 1 green cardamom pod, seeds only
- ⅛ tsp turmeric
- ⅛ tsp chilli powder
For the fish stock
- 1 onion, chopped
- 1 fennel bulb, sliced
- 100g/3½oz celery, sliced
- 100g/3½oz carrots, sliced
- 25g/1oz button mushrooms, washed and sliced
- thyme sprig
- 1kg/2lb 4oz flatfish bones (such as brill, sole, plaice) or fillets
For the prawn stock
- 2 tbsp olive oil
- 1 small garlic clove
- 250g/9oz prawn heads and shells
- 1 tbsp tomato purée
- ½ tsp salt
For the risotto
- 4 tbsp olive oil
- 2 shallots, finely chopped
- 1 garlic clove, grated
- 350g/12oz carnaroli rice
- ¼ tsp Byzantine spice mix
- 125ml/4fl oz dry white wine
- 1½ litre/2½ pints fish stock, hot
- 8 mussels, scrubbed and debearded
- 150ml/5fl oz prawn stock
- 2 red mullet fillets, cut diagonally into strips
- 1 squid, body cut into rings, plus tentacles
- 100g/3½oz small shrimps
- knob of butter
- 100g/3½oz white crab meat
- small handful chopped flatleaf parsley
- salt and freshly ground black pepper
Method
-
For the spice mix, grind all of the ingredients using a pestle and mortar or an electric grinder. Store in an airtight tin or box.
-
For the fish stock, put all the ingredients except the fish bones into a large pan, add 2¼ litres/3¾ pints water and bring to a boil. Turn down the heat and simmer gently for 20 minutes. Add the fish bones (or fish fillet) and bring back up to a simmer, skimming off any scum as it rises to the surface. Simmer for a further 20 minutes. Strain through a sieve into a clean pan and simmer a little longer, if necessary, until reduced to about 1¼ litres/2 pints. Keep warm.
-
For the prawn stock, heat the olive oil in a large pan over medium heat. Add the garlic and the prawn heads and shells. Stir-fry for a couple of minutes before adding the tomato purée, salt, and 300ml/10fl oz water. Cook for 10 minutes, then pass through a sieve, pushing down on the shells to extract as much of the prawn flavor as you can. Discard the shells, set the stock aside, and keep warm.
-
For the risotto, heat 3 tablespoons of the olive oil in a large frying pan over medium heat. Fry the shallots and garlic gently until softened. Add the rice and fry it in the oil for 2 minutes, then add the Byzantine spice mix and stir it through the rice.
-
Add the white wine, bring to a simmer and allow to evaporate, then add a ladle of the hot fish stock.
-
When this has been absorbed, add the next ladle, and continue to do so, stirring after each addition, until you have only a couple of ladlefuls left, this should take about 16-18 minutes. Add the mussels and prawn stock.
-
Heat the remaining tablespoon of olive oil in a frying pan until simmering and fry the red mullet strips, squid rings, and tentacles and shrimps briskly for 2–3 minutes.
-
Season with salt and pepper. Stir the seafood into the risotto with the remaining fish stock and cook for 1-2 minutes, or until absorbed.
-
Stir in the butter, crab meat, and parsley, and serve immediately.
Types of Flatfish in North America
Now that you know the basics, it’s time to tackle the specific species you can find in North America. If you’re only interested in British waters, feel free to skip down to the next section. Reading both parts will give you the clearest picture of how the family fits together, though.
Flounder
In essence, Flounder is the general name for hundreds of different fish. The group includes Halibut, Plaice, Dab – pretty much every Flatfish in North America. To keep things simple, let’s stick to the fish that actually have Flounder in their name.
Most North American Flounders live along the Atlantic and Gulf Coasts. The most popular ones are Summer Flounder (Fluke), Winter Flounder (American Lemon Sole), and Southern Flounder. On the West Coast, you also have Starry Flounder and California Flounder. More on that below.
Halibut
Halibut are the undisputed kings of the bottom, reaching over 8 feet long and several hundred pounds in weight. The two species of “true” Halibut are Atlantic and Pacific Halibut. Sadly, Atlantic Halibut is now endangered, so most of the fish for sale in North America is Pacific Halibut caught in Alaska.
Simple so far? Keep reading. California Flounder is often called “Halibut” because it’s a similar shape. There’s also Greenland “Halibut,” which the FDA rebranded to Greenland Turbot to avoid confusion. The fact that it’s not a Turbot either didn’t seem to matter. If you want specifics on the difference between Halibut and Flounder.
Sole
American Sole is a family of fish with small, barely noticeable heads and a high tolerance for freshwater. They’re a different family to European Soles, although the most popular ones are named after species in Britain. On the Pacific Coast, they include English, Petrale, Curlin, and Pacific Dover Sole (not the same as European Dover Sole).
There are also a couple of fish on the East Coast that people call “Sole,” namely Winter Flounder (“Lemon Sole,” but a different species to European Lemon Sole), and Witch Flounder (which sometimes goes by “Grey Sole”). If you’re buying Sole in a shop or a fish market, it’s most likely Pacific Dover Sole or American Lemon Sole, depending on where you live.
Plaice
Plaice is a name given to four different species of right-eye Flounder. Two of them live in North America, the most common of which is American Plaice. This fish lives on both sides of the Atlantic and goes by the name “Rough Dab” in Europe. There’s also a species in the Pacific called Alaska Plaice.
North America’s biggest commercial Plaice fishery is in Labrador in Canada. Chances are that any Plaice you buy was caught there. Alaska Plaice isn’t a huge target commercially and you won’t normally find them for sale unless you live on the North Pacific coast.
And So Much More!
There are a dozen more Flatfish names in North America. In short, they’re all Flounder. If you see something sold as “Turbot,” it’s either Greenland Halibut, Arrowtooth Flounder, or Curlfin Sole. Just bought some “Brill?” It’s probably Petrale Sole. All of these are Flounders.
Types of Flatfish in the UK
Flatfish are a lot less confusing in the UK. For one thing, there are far fewer species than in North America. There’s also the fact that they weren’t named at random by European settlers based on what they vaguely looked like. Here are the most common species.
Flounder
There’s only one fish in the UK called Flounder – European Flounder. These guys live all around the Britsh Isles and are a regular target for anglers and commercial crews alike. Despite this, Flounder stocks are much healthier than other British Flatfish, making it a good alternative if you’re looking for sustainable fish.
You can recognize Flounder by their long body and wide dorsal fins which give them a diamond shape when they’re extended but fold flat against their sides. Despite this, Flounder often gets mixed up with European Plaice. If you can’t tell which one you’re looking at, check the head. Plaice have a bony ridge on their heads, Flounder don’t.
Plaice
Speaking of Plaice, these are one of the most popular Flatfish to eat in the UK. As well as the commercial harvest, they’re a favorite among British sea anglers. The easiest way to identify Plaice is by their signature orange spots. They also have rounded dorsal fins, and have a clearly defined head like Flounder.
Similar to Flounder, European Plaice stocks seem to be healthy at the moment. They were massively overfished in the 1970s and ‘80s, but their numbers are now increasing, according to the International Union for the Conservation of Nature.
Turbot
Turbot is the tastiest and most expensive type of Flatfish. So much so, that they have earned the nickname “King of Fish.” This makes Turbot a favorite for both commercial and recreational fishers. It also means that you sometimes find other fish sold as Turbot in less reputable restaurants.
Of course, there’s another downside to Turbot being so tasty: overfishing. Turbot numbers are decreasing and the species as a whole is vulnerable to extinction, according to the IUNC. If you want our advice, stick to other Flatfish species that cost half as much and aren’t nearly as overfished.
Sole
There are two species of Sole in the UK: Dover Sole and Lemon Sole. Neither of them is the same as their American counterparts, and some British anglers even see American Soles as fakes of their favorite foods. Dover Sole gets its name from the southern port town of Dover, and it’s most common in the South of England, but both these fish show up all around Britain.
Some are easy to recognize, thanks to their long body and small head. Dover Sole is a much more important fish, both commercially and recreationally. It lives in much shallower water, so it’s easier to get to. On top of that, Lemon Sole have tiny mouths that make them difficult to hook even if a sea angler comes across one.
And More!
Chips shops and fishmongers around the country are full of different Flatfish. Some, like Dab, have become common on British menus since more prestigious fish grew scarce. Others, like Brill, have always been enjoyed, but have never been as popular as mainstay species like Plaice or Sole.
And of course, there are some species, like Atlantic Halibut, which you can still buy but which are tragically endangered in the wild. If it has to be Halibut, make sure it’s Alaskan Halibut, as these guys are much more sustainably managed.
How to catch flatfish from the shore
With flatfish becoming the seasonal target fish, we explain how to catch them, especially the harder fighting orange-spotted plaice
Wanting to learn how to catch flatfish from the shore? The flattie angler needs to be a tactical thinker, who sees color and movement as crucial tools, and most of all has the image in the choice of rigs and baits.
Flatfish feed almost exclusively on the bottom. Their eyes are on the top of their heads, so they are always looking up and along the seabed. This gives them a unique perspective on life and probably explains why they are so attracted to movement and bling. Their world is almost one-dimensional, their narrow field of vision the focus of their attention. Yet they have very good eyesight – watch a flattie in a tank react to a wriggly worm tail and you’ll be amazed!
DRAWN TO MOVEMENT
Anything they see move is investigated, and this is what the angler needs to play on.
For generations, we have used all manner of beads and sequins to attract the attention of flatfish, and the art of bling has a cult following. Years back, Sea Angler ran a survey on the best-colored beads (red and yellow came out top and white didn’t fare badly). Nowadays, bling has moved on and far more sophisticated attractors have been added to the collection.
Basically, anything goes, so don’t be afraid to experiment. Nothing will put flatfish off a quality fresh bait, and the most outlandish rig and snood additions sometimes work.
Tried and tested combinations of bling still weave their magic, and are there to fall back on should your experiments fail.
THE BLING LIST
Standard 2mm plastic beads: The standard way to enhance a flattie rig is to add different colored beads up the snood above the hook. Anything from six to 12 beads in red, green, and yellow combinations seem to work well on most venues, fished on paternoster snoods, or on a short flowing trace from a boat.
Plastic beads sink and therefore tend to fix the bait to the seabed, at the same time emitting noise and vibration as they move and rub together.
Foam and pop-up beads: The latest additions to the bling list, and my favorites, are luminous floating beads with pink spots.
Available in a host of other vibrant colors too, they add buoyancy to the bait, lifting it so that it hovers and flutters just above the seabed, and I believe that is especially alluring to flatties. Even a passing fin may move the bait, and that movement will catch the fish’s eye.
You can use between one and three 2mm beads to lift the bait, but the more and the larger they are, the more the bait will be lifted. Baits popped up near the surface can work for mackerel and garfish in summer, but for plaice, you want something with more or less neutral buoyancy.
Sequins: Sequins in a range of sizes and colors add glitter and reflection to your hook snood. They can be bent to catch any available light, and the flattie standard is six sequins added to the snood above the hook, or alternated with small colored or luminous beads.
It’s sensible to add a stop up the snood so that they stay in position near the hook bait, where they in turn help to keep the bait around the hook. Make a stop with a 1cm length of silicon tubing, running the snood line through it twice then pulling the line tight so the silicon locks in place
Blades: Blades are more popular among boats than shore anglers because they offer resistance on the cast and reduce distance. Metal or plastic, they do add sound to move and come in a wide range of sizes. Add a silicon stop above and below to hold them in position.
Spoons: The flounder (or plaice) spoon has moved on apace in recent years, as homemade dinner spoons are replaced by a custom-made metal or plastic items. The theory is that the fish are attracted to the bait by the reflection and jangle of the spoon and its accompanying beads.
At the same time, because the spoon is constantly on the move, it’s not so easy for crabs to take the bait. That’s why the flounder spoon works so well in clear river estuaries early in the year when hungry crabs are feasting after their molt.FISH ATTRACTED BY BLING
Some flatfish are attracted to bling more than others – in my experience plaice are the most susceptible, followed by flounders, with dabs third and the rest all in joint fourth.
Obviously, I am talking shore fishing and so turbot, brill, and the rarer (megrim) and bigger (halibut) species are not included.
PLAICE (Pleuronectes platessa):
Plaice are distinctive, with bright red spots on the back – not flecks of red and orange like the dab – bony knobs on the head, and an opaque undersize with chevron patterns.
They are one of the larger flatfish, although their size and numbers have suffered in recent years from excessive trawling. Now shore-caught fish seldom weigh more than 1lb.
Currently, there has been a resurgence in plaice stocks, possibly caused by more restrictive commercial quotas, but the species is very slow-growing and so will always be under threat from all types of over-fishing.
Plaice respond to most of the bling tactics, with lugworms and ragworms the favorite baits. A tip of squid tends to pick out the better fish, and white ragworms are recognized as a special place bait in some regions. The best place is often caught at distance, so the wishbone rig is a long-time favorite – although I personally rate a clipped one-up, one-down rig with size 1-2 Kamasan B940 hooks. Plaice are rarely caught at night.
DAB (Limanda limanda):
The obliging little dab, savior of many an otherwise blank shore session, is a sandy brown flatfish with a lateral line curving around the gill.
Dabs are most common from October to May, and often act as ‘filler fish’ when the cod and whiting have left. Inquisitive, they will respond to sequins and beads, while on the bait front slightly sticky, stale lugworms usually catch well. The best rig is a three-hook paternoster, clipped or flapping depending upon the range needed.
In clear water, anything from one to six sequins can be used for dabs, with red a favorite. When fishing clipped down, the sequin is also an ideal bait stop, preventing the worm from sliding up the hook snood on the cast.
FLOUNDER (Platichthys flesus):
Flounders can be identified from the rough skin behind the head, bony tubercles at the base of fins, and a square-cut tail.
Once the most common of the UK flatfish, numbers have decreased in many estuary regions with various reasons put forward for the decline. Crab boats take many flounders for use as pot bait, and although few anglers take them home to eat they are quite delicate – after being caught and returned they do not always survive.
Flounders respond to all kinds of bling and movement. Fishing for them can involve moving the baits regularly and using small ragworms, which have wriggly tails.
The use of a long terminal rig with longer hook snoods is also recommended to spread the baits over a larger area of the seabed, especially when fish are swimming parallel to the shore in surf tables.
SOLE (Solea solea):
The Dover sole has a distinctive curved mouth, while the lemon sole (Micromostomus kitt) is more closely related to the dab and looks like it too, with a tiny mouth and speckled camouflage.
Soles are not as interested in bling as the other flatties and I believe that is because their eyesight is not so good – they are more nocturnal than the rest and like colored water.
They spend a lot of time buried, focusing on scent and vibration to locate prey. Small hooks (size 4) are essential, as soles have very small mouths – in fact, lemon soles are rarely caught on rod and line because they have even smaller mouths than Dover soles.
VENUES FOR CATCHING FLATFISH
The various flatfish frequent different venues, and while a species may be plentiful from a particular beach it can be rare from the one next door. Habitat is dictated by diet and the type of seabed.
For example, dabs, plaice, and soles eat a lot of lugworms, shrimps, and shellfish and therefore tend to frequent sandy, shell grit storm beaches where marine worms and shellfish are regularly unearthed, broken up, and scattered inshore by storms.
These venues also produce dead and decaying shellfish weeks after a storm, when a ripple dislodges them, and this explains why some flatfish like baits that are ‘off.
Sand provides natural cover for flatties, and many bury or nestles into it as part of their camouflage strategy from larger predators. The color of the fish gives a clue to their preference – dabs, and plaice are a sandy color, flounders muddier looking.
In muddy estuaries flounders feed on shrimps, crabs, and small ragworms. It’s often only on mixed sand and mud venues that all the flatties will be found together.
Flatfish are renowned for being caught close in, with a short cast all that’s needed. This is because they exploit a particular habitat and food source, mainly the intertidal area where the turbulence of waves and tides unearths food. A favorite spot to cast to for flatfish like flounders and soles is the ‘gutter’ or low tide line where the seabed is regularly gouged by the waves at low water.
On the other hand, plaice and dabs can often be found further out where an indent in a sand bar or gully edge is disturbed by wave action from above that dislodges and exposes food.
Other Facts
- It resembles a flat and circular ball having fins circling around it.
- Usually, they are brown in color but could be found in colors such as green, orange, red and blue.
- Most of the species live in warm and moderate oceans but few could be found in Arctic waters.
- Mostly they are nocturnal.
- These demersal fish feeds on the bottom of the sea bed.
- It is also known as ambush predators.
- Spawning occurs during hotter months of the year in flounder species.
- Its predators are eels, big fish, humans, and sharks.
- Industrial pollution is regarded as decreasing its numbers.
- Usually, females are larger than males.
- The body color depends on its habitat. It has the ability to change the body color to adapt to the color of the environment in 2-8 seconds.
- On the basis of an eye position, flounders are divided into two categories: right-eye flounders and left-eye flounders.
- Flounder is a nocturnal animal which means they are active during the night.
- It is motionless and waits for prey to appear and grabs it in a blink of an eye.
- Usually, the eyes are the only visible part of its body.
- Female lays up to 1,00,000 eggs in water and at the same time male releases sperm cells.
- After a couple of days of hatching, larvae transform into juvenile fish.
- Flounder survives from 3-10 years in the wild.
Precautions
- The consumption of sea fish if one is trying to reduce inflammatory diseases such as heart disease.
- Farmed ones contain arsenic that leads to arsenic poisoning.
- Farmed seafood results in to increase in inflammation leading to weight gain, arthritis, and heart diseases.
- The imbalance ratio of Omega-6 and Omega-3 causes heart disease and hypertension.
- Seafood and fish in farms have polychlorinated biphenyls (PCBs), organophosphorus (OPs), organochlorine (OC), trifluralin pesticides, and hexachlorobenzene (HCB) causing diseases or even death.
- The seafood has a high content of mercury, which may lead to mercury toxicity.
- Consume it in moderate amounts. So consume it with caution.
- Some people might get allergic reactions. So avoid it.
- It has a high chance of contamination.
- One should limit its intake.
- Consult the doctor by pregnant women and children before consuming it. Children and pregnant women should avoid it because the high content of mercury might cause a negative impact on the development of the nervous system of a fetus.
References