Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store

Scorpion Fish

Reviewed by:
ffImage
hightlight icon
highlight icon
highlight icon
share icon
copy icon
SearchIcon

What is the Meaning of a Scorpion Fish?

A scorpion fish is also known as scorpionfish or rockfish (stonefish). A scorpion fish belongs to the family of Scorpaenidae (marine fish) and genus Scorpaena; they are widely distributed in temperate and tropical waters that include many of the world's most venomous species. 

Often scorpionfishes are called rockfish or stonefish because they commonly survive on rocks. So, what does scorpionfish looks like? Well! These species have a kind of "sting" that takes the form of sharp spines coated with venomous mucus. 

The fins spines of a leaf scorpionfish, with or without venom, can generate deep and painful wounds. Due to their venomous nature, they are called the devil scorpionfish. The scorpionfish family is a large one bearing hundreds of members.

On this page, we will discuss a variety of scorpionfish species, like red scorpionfish, and black scorpionfish.

Along with the scorpion fish poison, we will go through the scorpionfish’s living behaviour, distribution, and habitat, and amazing scorpionfish facts.


What is a Scorpion Fish?

Various scorpionfish are dull in colour, but many are brighter—often some shade of red, species known by the name red scorpion fish. The largest members of the family grow to a length of 1 metre (39 inches). 

These species are of the order Carnivora and generally sedentary. Most frequently, they lie quietly on the bottom, and many mix closely with their surroundings by virtue of their colouring and (in few species) a variety of flaps and projections on the head and body. Well-known species include the spotted scorpionfish, leaf scorpionfish, and black scorpionfish.


Scorpion Fish Appearance

Scorpion fishes have elongated bodies that are enveloped in feather-laden fins. They have skin flaps that also help them easily camouflage (hiding) and blend in with their surroundings.


  (Image will be uploaded soon)


A few scorpionfishes are brown or yellow, while others possess bright colors like red or orange. They are known to become invisible when near reefs and rocks.

The size of the scorpionfish ranges between 8 inches to 12 inches and weighs around 3.4 lbs.

They are usually motionless when near algae or rocks, and are called scorpionfish venom because they have poisonous spines that are sharp and are covered in poisonous mucus.


Scorpion Fish Scientific Classification


Parameters

Scorpion Fish - Classification

Scorpion Fish  - Scientific name

Scorpaenidae (species include Pterois volitans, Synaceia horrida)

Other names

Lionfish

Stonefish

Scorpionfish

Rockfish

Firefish

Dragonfish

Turkey fish

Stingfish

Butterfly cod

Kingdom

Animalia

Conservation status

Least concerned

(Image will be uploaded soon)

Phylum

Chordata 

Class

Actinopterygii

Order

Scorpaeniformes

Suborder

Scorpaenoidei

Family

Scorpaenidae


Discovered by a Niçard naturalist, named Giuseppe Antonio Risso in the year 1826

Lifespan

15 Decades

Species type

Scorpaena Porcus

Discovered by a Swedish botanist, zoologist, taxonomist, and physician, Carl Linnaeus in the year 1758

Genera 

  • Brachypterois

  • Dendrochirus

  • Ebosia

  • Hoplosebastes

  • Idiastion

  • Iracundus

  • Neomerinthe

  • Neoscorpaena

  • Parapterois

  • Parascorpaena

  • Phenacoscorpius

  • Pogonoscorpius

  • Pontinus

  • Pteroidichthys

  • Pterois

  • Rhinopias

  • Scorpaena

  • Scorpaenodes

  • Scorpaenopsis

  • Sebastapistes

  • Taenianotus

  • Ursinoscorpaenopsis

Favourite food of scorpionfish

  • Coral reefs

  • Small fishes

  • Snails

Gestation period

3 to 18 months

Length

8 inches to 20 inches

Weight

3.4 pounds

Number of species

198


Scorpion Fish Species

Scorpion fishes make up one of the biggest marine families and comprise 100 to 200 distinctive fish relatives. A portion of the more popular species incorporates the lionfish, firefish, turkey fish, and stingfish, which are separated into different kinds inside their own families. 

As of now, there is an aggregate of 10 subfamilies, however, 338 species fall into these classifications, as per reports in 2018. Nonetheless, the aggregate sum will differ, in view of where you get your data.


Scorpion Fish Description

Recently, researchers at the CMFRI (i.e Central Marine Fisheries Research Institute) have discovered an uncommon Scorpionfish (Scorpaenopsis neglecta) from the Sethukarai coast in the Gulf of Mannar.

For the first time, a specific species is discovered alive in Indian waters. However, it has been stored in the National Marine Biodiversity Museum of the CMFRI.

Characteristics of Scorpaenopsis Neglecta:

  • Powerful Sensory System:

Unlike other fishes, this band-tail Scorpion Fish uses its lateral sensory system (CNS in humans) instead of its eyes to hunt its prey.

A lateral sensory system is a framework of sense organs found in fishes that are used to recognize movement, vibration, and pressure gradients in the surrounding water.

  • Colour Changing Ability:

The fish can change colour and hide to escape from predators and while catching its prey.

  • Camouflage: 

A scorpionfish is a defense or tactic that organisms use to change their appearance, usually to mix in with their surrounding environment. This allows prey to prevent predators, and for predators to sneak up on prey.

  • Neurotoxic:

Neurotoxins function by disturbing chemical signals transmitted among neurons and deadening the entire framework. 

By and large snakes, for example, King Cobra and marine snakes have these kinds of toxins.

When the spines prick an individual, the venom gets injected immediately.

Also, consuming the fish directly would lead to death.


About the Scorpionfish

Scorpionfish is from the family Scorpaenidae, a marine fish that includes various world's most venomous species.

The scorpaenidae fishes are basically the same as the sea perches, yet with a bony stay across the cheek. The common name of these fishes comes from the stinging agony that they can perpetrate. Every one of the types of this family is viewed as venomous basically because of their dorsal fins (also known as scorpion venom). A few animal varieties likewise have venomous anal and pelvic fins. 

Besides this, their pectoral and caudal fins are not venomous as they don't have stinging spines. The rockfishes are not really harmful as scorpionfishes and lionfishes are toxins, yet they are equipped for causing a difficult sting. 


Where is ScorpionFish Found?

They are found commonly in the Indo-West Pacific region of the world. Also, in the biogeographic region of Earth's seas, consisting of the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the seas connecting the two in the general area of Indonesia.

These fishes remain generally fixed during light, yet are dynamic around evening time; that’s why they are called nocturnal feeders and they lay motionless in the bottom of the sea and wait for the prey to come nearby.

Here, nocturnal species are the species that prefer to be active at night and sleep during the day. e.g. Bats.


Scorpionfish Venom

Scorpionfish erect their spines and infuse toxins (scorpion fish poison) in the event that they are nibbled by a hunter, snatched, or stepped on. The scorpion fish poison contains a combination of neurotoxins. Normal indications of harming incorporate serious, throbbing pain that endures as long as 12 hours, amplifying in the first to tour hours, just as redness, wounding, deadness, and expanding at the sting site. 

Serious responses incorporate nausea, vomiting, abdominal cramps, tremors, reduced blood pressure, and problems while breathing.  and unusual heart rhythms. Loss of motion, seizures, and demise is conceivable, however, are normally limited to stone fish poisoning. The youthful and old are more helpless to the toxin than solid grown-ups. Demise is uncommon, yet a few groups are hypersensitive to the toxin and may endure anaphylactic shock. 

Australian emergency clinics keep stonefish immunizing antitoxin available. For different species and for stonefish emergency treatment, the initial step is to remove the victim from water to forestall suffocating. Vinegar might be applied to lessen torment, while the toxin might be inactivated by submerging the sting site in steaming hot water for 30 to an hour and a half. Tweezers ought to be utilized to eliminate any leftover spines and the region ought to be scoured with cleanser and water and afterward flushed with new water. 

Clinical consideration is needed for all scorpionfish, lionfish, and stonefish stings, regardless of whether the toxin has all the earmarks of being deactivated. Be sure that no spine remainders stay in the tissue. A tetanus supporter might be suggested.


Scorpionfish Feeding Pattern

They feed on shellfish, cephalopods, and fishes utilizing a lie-in-stand by the system, staying fixed and snapping prey that draws close. With their mouth, they make a vacuum and suck prey in during an almost impalpable split-second development (15 milliseconds). 

Some have green growth and hydroid development on their body surfaces( stonefish) and somewhere around one animal type (Decoy scorpionfish Iracundus signifer) has a dorsal blade that resembles a swimming fish, behaving like that of the frogfish. A few animal groups (for instance the weed scorpionfish) influence their bodies from one side to another so they resemble a piece of trash. 


Scorpionfish Living Behaviour

Scorpionfishes are not forceful, however, whenever undermined they will erect their dorsal spines. On the off chance that risk proceeds they escape, generally quick however just for a brief distance and afterward rapidly settle back and freeze. 

The stonefishes, for instance, usually cover themselves in sand or rubble utilizing a scooping movement of their pectoral blades. In an issue of under 10 seconds, just the dorsal bit of the head stays uncovered, some sand is tossed on top to additionally improve camouflage. A few animal groups like the devilfish have extremely dazzling red and yellow tones on the inward surface of their pectoral balances. Those tones are not apparent while resting but rather are streaked if threatened. 

Scorpion fishes produce a drifting, coagulated mass where the eggs are implanted.


Scorpion Fish Habitat And Distribution

The scorpionfishes are generally found in the Indo-Pacific districts and furthermore hinder the tropical submerged of the Indian sea. Aside from that, these fishes are likewise found in the focal and western pieces of the Pacific Ocean and furthermore in a few pieces of Indonesia. 

These fishes typically exist where there are a lot of coral reefs and the temperature of the water is mild. This is on the grounds that the right temperatures assist them with enduring and the coral reefs help these fishes stow away from hunters effectively. 

The number of inhabitants in the scorpionfish isn't known. Notwithstanding, fishes having a place with these families do exist in huge numbers as in excess of 200 fishes are essential for this family. They are, nonetheless, 'not terminated' as recorded by the NOAA.


Scorpionfish Variety

A few sorts, like the lionfish, are appealing just as hazardous, and exceptionally wanted for aquaria. Notwithstanding the name scorpionfish, nicknames for family members incorporate firefish, turkey fish, dragonfish, and stingfish, ordinarily with descriptive words added. 

General attributes of family members incorporate a compacted body, edges as well as spines on the head, a couple of spines on the operculum, and three to five spines on the preopercle. The dorsal fin has 11 to 17 spines, frequently long and isolated from one another, and the pectoral balances are all around created, with 11 to 25 rays. The spines of the dorsal, anal, and pelvic fins all have toxin glands at their bases.

Most species are bottom feeders that feed on scavengers and more modest fish. Many occupy shallow waters, yet a couple of life as profound as 2,200 m (7,200 ft).

Most scorpionfish, like the stonefish, trust that prey will pass them by prior to assaulting, while lionfish regularly trap their prey. When not ambushing, lionfish may crowd the fish, shrimp, or crab into a corner prior to gulping. In the same way as other perciform fishes, scorpionfish are pulled feeders that catch prey by quickly projecting an attraction field produced by the expansion of the fish's buccal hole. 

The Scorpaenidae, which became mainstream in light of the examples found inside it, is made out of more modest families. These include Scorpaeninae (scorpionfishes), Sebastinae (rockfishes), and Pteroinae (lionfishes or turkey fishes); this last one being the one wherein the recently referenced lionfish belongs.


Types of Scorpion Fish

Below are the types of scorpionfish:

  • Lionfish

  • Black scorpionfish

  • Blue scorpion discus


Lionfish


 (Image will be uploaded soon)


Lionfish or Pterois sp. Is a superb fish that is seen on the Southern shores. Somewhere else, they are found in sheltered lagoons, toward the sea reefs regularly sheltering under edges during the day. 

Highlights: Grows to about 30 cm. Brown striped with expansive middle blades comprised of flappy beams. The dorsal balances likewise long and flappy beams. The sting is amazingly difficult yet once in a while lethal. 

Russel's lionfish (Pterois russelii) doesn't have spots on the middle fins. However, Volitans lionfish (Pterois volitans) have spots on the middle fins.

Black Scorpionfish

The black scorpionfish (binomial name - Scorpaena porcus) can grow up to 37 cm (15 in), nonetheless, a more common adult length is around 15 cm (6 in). Its head is expansive with a short nose and upwardly angled mouth. There is a short appendage simply over the eye and different other more limited arms, spines, and folds of skin designing the head. The dorsal balance has twelve spines and nine delicate beams and the butt-centric balance has two spines and six delicate beams. The pectoral blades are enormous and oval and have sixteen to eighteen beams. The shade of this fish is for the most part tarnish and there is a dull pigmented spot between the eighth and ninth dorsal spines. The blades are mottled with brown and the caudal balance has three vertical earthy colored stripes.


 (Image will be uploaded soon)


This species comes under the LC list as per the IUCN 3.1 data.


(Image will be uploaded soon)


The black scorpionfish (Scorpaena porcus) is a venomous scorpionfish, normal in marine subtropical waters. It is far and wide in the Eastern Atlantic Ocean from the British Isles to the Azores and Canary Islands, close to the shorelines of Morocco, in the Mediterranean Sea, and the Black Sea.


Blue Scorpion Discus

The Blue Scorpion discus is the best choice for gatherers looking for solid color tones with a bit of depth to them. For example, if you look minutely at a Blue Scorpion discus, there are some spots and striations that are not immediately apparent, however, these patterns are caused by Snakeskin genetics that has affected this strain.


(Image will be uploaded soon)


Amazing Scorpion Fish Facts

  • These fishes are known to be the absolute most toxic ocean animals on account of their sharp venomous spines. 

  • These fishes generally live at the surface water yet can likewise be found as profound as 800 meters into the ocean. 

  • Scorpaenid systematics are confounded and agitated. Fishes of the World perceives 10 subfamilies with a sum of 388 animal groups, while (starting at 2018) FishBase follows Eschmeyer and has three subfamilies, 25 genera, and 222 species.

  • They don't care about existing in gatherings and meet up just for propagation purposes. 

  • As a result of their appearance, it is simple for these fishes to cope with their environmental factors. 

  • Regardless of being risky, these fishes are tiny in size.

From here, we conclude that a scorpionfish has the scientific name Scorpaenidae and it belongs to the kingdom Animalia and Phylum Chordata. They hail from the class and order Actinopterygii and Scorpaeniformes, respectively. There are around 100 to 200 subspecies and types of Scorpionfish.

FAQs on Scorpion Fish

1.What is the Unique Feature of Scorpionfish?

Ans: The carnivorous scorpionfish feed on other fishes (rather than scorpionfish), like crustaceans, mollusks, and various other invertebrates. These species can even virtually eat any other animal that can be gulped entirely. Most scorpionfish species are night hunters, whereas lionfish are most active in the morning hours.


Often scorpionfish wait for their prey to approach, while lionfish actively hunt and attack prey, using a bilateral swim bladder to accurately control bodily movements. 


To pick prey, a scorpionfish showers a jet of water close to its victim, disorienting it. When the prey is a fish, the jet of water also originates it to orient against the current so that it faces the scorpionfish because head-first capture is easier and this technique improves hunting ability for a scorpionfish. Once the prey is positioned exactly, the scorpionfish swallow its prey whole. However, in some cases, it uses its spines to stun prey, however, this behavior is fairly rare.

2. State the Conservation Status of a Scorpionfish.

Ans: Most of the scorpionfish species have not been investigated in terms of conservation status. However, a variety of scorpionfish, stonefish Synanceia verrucosa, and Synanceia horrida are listed in the "least concern" on the IUCN Red List, with stable populations. 


Other species, like the luna lionfish Pterois lunulata, and red lionfish Pterois volitans are also in the least concerned or LC category. However, the population of red lionfish, an invasive species, is increasing.


It is also noticed that no significant threats a scorpionfish is facing at this time, though it may be at risk from habitat destruction, pollution, and climate change.

3. What Do Scorpion Fish Like to Eat?

Ans: Though scorpionfishes are not commonly caught because of the venom they carry around, some people prefer to intake it. These species are safe to consume and are also a world-famous delicacy. Scorpionfish chips are very well-known, and many people compare their flavor to a combination of sea bass and monkfish.


The South Pacific Ocean is the easiest place to fish for them because scorpionfishes are commonly found in coral reefs. Still, fishers ought to be careful while fishing around these reefs so that they don’t affect the local environment.

Also, the internet is filled with a variety of recipes for scorpionfish. Their thin meat absorbs other flavors well, and resembles other crustaceans.

4. Explain the Scorpionfish Reproduction Process.

Ans: Female scorpionfish switch somewhere in the range of 2,000 and 15,000 eggs To the water, which can be prepared by the man. In the wake of rearing, the grown-ups disappear and look to forgive to limit consideration from hunters. The eggs buoy (float) to the surface to limit predation. Eggs incubate after two days. The recently brought forth scorpionfish, known as fry, remain near the surface until they are about an inch long. As of now, they sink into the base to search out a fissure and begin chasing. Scorpionfish suffer around 15 decades.